Analysis
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max time kernel
54s -
max time network
131s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
21/09/2022, 06:55
Static task
static1
Behavioral task
behavioral1
Sample
b2ff5314573e49dab41de81d94fe2d12.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
b2ff5314573e49dab41de81d94fe2d12.exe
Resource
win10v2004-20220901-en
General
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Target
b2ff5314573e49dab41de81d94fe2d12.exe
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Size
781KB
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MD5
b2ff5314573e49dab41de81d94fe2d12
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SHA1
1a3be2dc343287d4a30ab987183cbd1b5c337ca2
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SHA256
3d3d04e0b7d813c8a0a409488de8719baead684b8933341c5ae11665430c5536
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SHA512
5f61a754670e62e571e248867f63e45b26d15a7729ac26bf349e215a4d15538d1aec00bae72c56d272464bdfe7950340b942e27ea6ba6ea1165a169c79f950e8
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SSDEEP
12288:HP/zTieBW/BBxIexqvAMSJMfm9fdz5G1vS3N42:HHzGeBW/BnzqvA/Mfm9fdz5GJ+N4
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
*UC*BWj8OQWn3@@@21 - 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 6 IoCs
resource yara_rule behavioral1/memory/1248-63-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/1248-65-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/1248-66-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/1248-67-0x000000000042016E-mapping.dmp family_snakekeylogger behavioral1/memory/1248-69-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/1248-71-0x0000000000400000-0x0000000000426000-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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b2ff5314573e49dab41de81d94fe2d12.exe Key opened \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b2ff5314573e49dab41de81d94fe2d12.exe Key opened \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b2ff5314573e49dab41de81d94fe2d12.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 4 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 340 set thread context of 1248 340 b2ff5314573e49dab41de81d94fe2d12.exe 27 -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1248 b2ff5314573e49dab41de81d94fe2d12.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1248 b2ff5314573e49dab41de81d94fe2d12.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 340 wrote to memory of 1248 340 b2ff5314573e49dab41de81d94fe2d12.exe 27 PID 340 wrote to memory of 1248 340 b2ff5314573e49dab41de81d94fe2d12.exe 27 PID 340 wrote to memory of 1248 340 b2ff5314573e49dab41de81d94fe2d12.exe 27 PID 340 wrote to memory of 1248 340 b2ff5314573e49dab41de81d94fe2d12.exe 27 PID 340 wrote to memory of 1248 340 b2ff5314573e49dab41de81d94fe2d12.exe 27 PID 340 wrote to memory of 1248 340 b2ff5314573e49dab41de81d94fe2d12.exe 27 PID 340 wrote to memory of 1248 340 b2ff5314573e49dab41de81d94fe2d12.exe 27 PID 340 wrote to memory of 1248 340 b2ff5314573e49dab41de81d94fe2d12.exe 27 PID 340 wrote to memory of 1248 340 b2ff5314573e49dab41de81d94fe2d12.exe 27 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b2ff5314573e49dab41de81d94fe2d12.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b2ff5314573e49dab41de81d94fe2d12.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b2ff5314573e49dab41de81d94fe2d12.exe"C:\Users\Admin\AppData\Local\Temp\b2ff5314573e49dab41de81d94fe2d12.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:340 -
C:\Users\Admin\AppData\Local\Temp\b2ff5314573e49dab41de81d94fe2d12.exe"C:\Users\Admin\AppData\Local\Temp\b2ff5314573e49dab41de81d94fe2d12.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1248
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