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Menace Actors Rework GIFTEDCROOK Stealer into an Intelligence-Gathering Device

Admin by Admin
June 29, 2025
Home Cybersecurity
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The Arctic Wolf Labs workforce has uncovered a dramatic transformation within the capabilities of the GIFTEDCROOK infostealer, wielded by the menace group UAC-0226.

Initially recognized as a rudimentary browser knowledge stealer in early 2025, this malware has undergone speedy evolution by variations 1.2 and 1.3, morphing into a complicated intelligence-gathering instrument by June 2025.

This development displays a deliberate technique to focus on delicate knowledge from Ukrainian governmental and army entities, aligning with essential geopolitical occasions such because the Ukraine peace negotiations in Istanbul.

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Evolution of a Cyber-Espionage Weapon

The malware’s enhanced skill to exfiltrate a wide selection of proprietary paperwork and browser secrets and techniques underscores a shift towards complete knowledge assortment, doubtless aimed toward supporting covert intelligence aims in periods of diplomatic and army significance.

Delving into the technical intricacies, GIFTEDCROOK’s preliminary model (v1) targeted solely on extracting browser credentials, with knowledge exfiltration facilitated by brazenly seen Telegram bot channels.

By model 1.2, launched across the June 2, 2025, Istanbul Settlement discussions, the malware expanded to focus on particular file varieties by extension, using string encryption through a customized XOR algorithm and compressing stolen knowledge into encrypted zip archives earlier than transmission.

Model 1.3 additional refined this method, integrating capabilities to steal each browser secrets and techniques and recordsdata modified inside the final 45 days, up from 15 days in v1.2, whereas growing the file measurement restrict for exfiltration to 7 MB.

Strategic Deployment

The assault vector primarily depends on spear-phishing emails with military-themed PDF lures, usually spoofing places in Western Ukraine like Uzhhorod, and concealing true targets behind decoy recipients comparable to authorities in Bakhmut.

GIFTEDCROOK Stealer
Malicious PDF attachment

These phishing campaigns exploit social engineering techniques, leveraging themes of army mobilization and administrative fines to instill urgency, tricking victims into enabling macros in malicious OLE paperwork that finally deploy the malware payload.

GIFTEDCROOK Stealer
Transportable executable (PE) extraction from OLE file.

A notable overlap in e-mail infrastructure with different campaigns, together with these deploying NetSupport RAT, suggests a coordinated, multi-pronged effort by varied menace teams focusing on Ukraine, specializing in persistence and stealthy knowledge theft.

The strategic timing of those assaults, coinciding with Ukraine’s prolonged martial regulation and intensified recruitment efforts, amplifies their impression.

GIFTEDCROOK’s skill to reap OpenVPN configurations and administrative paperwork offers menace actors with essential community entry credentials and organizational intelligence, paving the best way for future operations.

Arctic Wolf Labs recommends sturdy defenses, together with Safe Electronic mail Gateways, Endpoint Detection and Response (EDR) options, and complete worker coaching on phishing consciousness to mitigate such threats.

As GIFTEDCROOK continues to adapt, its alignment with geopolitical aims alerts an ongoing and evolving cyber threat to focused areas.

Indicators of Compromise (IOCs)

Kind Indicator (SHA-256 / URL / Path)
GIFTEDCROOK v1.2 Telegram IOC a6dd44c4b7a9785525e7f487c064995dc5f33522dad8252d8637f6a6deef3013
GIFTEDCROOK v1.3 Telegram IOC b9d508d12d2b758091fb596fa8b8b4a1c638b7b8c11e08a1058d49673f93147d
PDF File (Malicious Hyperlink) 1974709f9af31380f055f86040ef90c71c68ceb2e14825509babf902b50a1a4b
Telegram Bot Token v1.2 hxxps://api[.]telegram[.]org/bot7806388607:AAFb6nCE21n6YmK6-bJA6IrcLTLfhlwQ254/sendDocument
Telegram Bot Token v1.3 hxxps://api[.]telegram[.]org/bot7726014631:AAFe9jhCMsSZ2bL7ck35PP30TwN6Gc3nzG8/sendDocument
Set up Path %ProgramDatapercentInfomasterInfomaster

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Tags: ActorsGIFTEDCROOKIntelligenceGatheringStealerthreattooltransform
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