Analysis
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max time kernel
29s -
max time network
114s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
05/05/2023, 11:23
Static task
static1
Behavioral task
behavioral1
Sample
4579986544567SK.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
4579986544567SK.exe
Resource
win10v2004-20230221-en
General
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Target
4579986544567SK.exe
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Size
222KB
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MD5
03583de9c0aab8903f5033c70ec95121
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SHA1
24d128bae985a8e0709e4d867510756adbc52d3b
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SHA256
21bb03f0edc9d1584da0a469bad83726ed17ce463aa2570d1c2ec74b23d22bcf
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SHA512
c603c421ea4fa6c72338b9796b9b19e0452fcc69be82e376ab909e35c2b04e43922b9eedcfcc5eb7b59b5059689f7482f77e98e836400b64f5184d28c1d31b3c
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SSDEEP
6144:sQsL+qO8mibCoPxL1GL37oSPs0YJQBfS1apMc4:yO8mPoPxL1GHoStCQBfS1apMc
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 5 IoCs
resource yara_rule behavioral1/memory/936-59-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/936-60-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/936-62-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/936-64-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/936-66-0x0000000000400000-0x0000000000424000-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-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 4579986544567SK.exe Key opened \REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 4579986544567SK.exe Key opened \REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 4579986544567SK.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 3 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1532 set thread context of 936 1532 4579986544567SK.exe 28 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 936 4579986544567SK.exe 936 4579986544567SK.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 936 4579986544567SK.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1532 wrote to memory of 936 1532 4579986544567SK.exe 28 PID 1532 wrote to memory of 936 1532 4579986544567SK.exe 28 PID 1532 wrote to memory of 936 1532 4579986544567SK.exe 28 PID 1532 wrote to memory of 936 1532 4579986544567SK.exe 28 PID 1532 wrote to memory of 936 1532 4579986544567SK.exe 28 PID 1532 wrote to memory of 936 1532 4579986544567SK.exe 28 PID 1532 wrote to memory of 936 1532 4579986544567SK.exe 28 PID 1532 wrote to memory of 936 1532 4579986544567SK.exe 28 PID 1532 wrote to memory of 936 1532 4579986544567SK.exe 28 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 4579986544567SK.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 4579986544567SK.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\4579986544567SK.exe"C:\Users\Admin\AppData\Local\Temp\4579986544567SK.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1532 -
C:\Users\Admin\AppData\Local\Temp\4579986544567SK.exe"C:\Users\Admin\AppData\Local\Temp\4579986544567SK.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:936
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