Analysis
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max time kernel
122s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
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submitted
30-11-2023 06:53
General
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Target
Halkbank_Ekstre_20231129_532423_6373443.pdf.exe
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Size
577KB
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MD5
262b52d9590ed5c1810aea72743a52b9
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SHA1
1dd3ccec496afccc5da4d2d9614149d56606f050
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SHA256
283a23b5137c06811fc59411e30f85f91c7728528cbdad2afeb93cba0f65b598
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SHA512
9456a271a35a491c0eefeea4b996908f2df71818198ae31fa2719b2e77e951948a11bbde612d96639b1aa3ebbc10fe2f048e0f9c4d4d7ad0e3a19ae75b3c5cc2
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SSDEEP
12288:5ucopox4F9DmF2+R3NXfyKT/T0ysS07jTImEwScLzA:DeZ4hVJ190vTImEDCzA
Malware Config
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 1 IoCs
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of SetThreadContext 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of WriteProcessMemory 8 IoCs
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outlook_office_path 1 IoCs
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outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231129_532423_6373443.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231129_532423_6373443.pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231129_532423_6373443.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231129_532423_6373443.pdf.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
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Filesize
64KB
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Filesize
584KB
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Filesize
624KB
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Filesize
384KB
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Filesize
40KB
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Filesize
96KB
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Filesize
24KB
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Filesize
40KB
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Filesize
7.7MB
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Filesize
5.6MB
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Filesize
600KB
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Filesize
7.7MB
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Filesize
7.7MB
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Filesize
64KB
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Filesize
320KB
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Filesize
1.8MB
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Filesize
7.7MB
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Filesize
152KB