Analysis
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max time kernel
143s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20231023-en -
resource tags
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submitted
27-11-2023 11:08
General
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Target
Halkbank_Ekstre_20231127_093256_734136.pdf.exe
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Size
720KB
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MD5
f807d8a57e882d42638b68750167e6ab
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SHA1
fb61665d0cf5fbaad74d093e1e3c5750f09b4cc1
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SHA256
1b4b22ab1d8d89a1d60371e7399b30dc74c0d2e5b1a83b46cc0a2ae95e6da667
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SHA512
27c90ec301cfa65056491392e0c2c67915dfbcc3ce3b2a21624c577445a3629ebcec8f40a30e2641a5f4bd31883e1040fe0f74f7cd5e04e040150078f44ee0fd
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SSDEEP
12288:Qti1KYlsa9qaLlT7Aj+HGTSrK9lZt5voMrk72SKQkGI195d7BR6wTtE6jD/:QMv9qaLJAj4rI3e2SSGYfpBhtD/
Malware Config
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 2 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_20231127_093256_734136.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231127_093256_734136.pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231127_093256_734136.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20231127_093256_734136.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
MD5b7b9acb869ccc7f7ecb5304ec0384dee
SHA16a90751c95817903ee833d59a0abbef425a613b3
SHA2568cb00a15cd942a1861c573d86d6fb430512c8e2f80f6349f48b16b8709ca7aa4
SHA5127bec881ac5f59ac26f1be1e7e26d63f040c06369de10c1c246e531a4395d27c335d9acc647ecdedb48ed37bdc2dc405a4cfc11762e1c00659a49be259eaf8764
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Filesize
40KB
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Filesize
64KB
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Filesize
384KB
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Filesize
7.7MB
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Filesize
624KB
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Filesize
40KB
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Filesize
104KB
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Filesize
32KB
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Filesize
7.7MB
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Filesize
7.7MB
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Filesize
584KB
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Filesize
5.6MB
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Filesize
3.3MB
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Filesize
744KB
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Filesize
7.7MB
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Filesize
152KB
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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
64KB