Analysis
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max time kernel
91s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
12-04-2023 14:32
Static task
static1
Behavioral task
behavioral1
Sample
65670000009876.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
65670000009876.exe
Resource
win10v2004-20230220-en
General
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Target
65670000009876.exe
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Size
531KB
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MD5
fd0e4c74cd2cde1d6b13ec40602af84f
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SHA1
46ed02d73b9370d61bfe0f8797d1402a38121b90
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SHA256
48834270a70765c001a06f747884bc5289db6859b56609d0a7f2d1fd30cbb18e
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SHA512
74e351216d6d7d88ac57734ec180c693e7212747a7984a607e9f26d2251c053ace4d6aae2a386b377c3ba55acd59dff1e04bba168a15f66d3ca6af11753897d1
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SSDEEP
12288:VS2iNXkDu93BEvu/4gLWFylJku//aGLH:VS19D34uE47kq/aGL
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.sienkakupeste.com - Port:
587 - Username:
[email protected] - Password:
010203sienka++ - Email To:
[email protected]
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 2 IoCs
resource yara_rule behavioral2/memory/5100-140-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral2/memory/5100-145-0x0000000004E00000-0x0000000004E10000-memory.dmp family_snakekeylogger -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 65670000009876.exe Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 65670000009876.exe Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 65670000009876.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 32 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2100 set thread context of 5100 2100 65670000009876.exe 89 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 5100 65670000009876.exe 5100 65670000009876.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 5100 65670000009876.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2100 wrote to memory of 5100 2100 65670000009876.exe 89 PID 2100 wrote to memory of 5100 2100 65670000009876.exe 89 PID 2100 wrote to memory of 5100 2100 65670000009876.exe 89 PID 2100 wrote to memory of 5100 2100 65670000009876.exe 89 PID 2100 wrote to memory of 5100 2100 65670000009876.exe 89 PID 2100 wrote to memory of 5100 2100 65670000009876.exe 89 PID 2100 wrote to memory of 5100 2100 65670000009876.exe 89 PID 2100 wrote to memory of 5100 2100 65670000009876.exe 89 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 65670000009876.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 65670000009876.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\65670000009876.exe"C:\Users\Admin\AppData\Local\Temp\65670000009876.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2100 -
C:\Users\Admin\AppData\Local\Temp\65670000009876.exe"C:\Users\Admin\AppData\Local\Temp\65670000009876.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:5100
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3