Analysis
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max time kernel
54s -
max time network
134s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
25-01-2023 10:41
Static task
static1
Behavioral task
behavioral1
Sample
VSL Q88.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
VSL Q88.exe
Resource
win10v2004-20221111-en
Behavioral task
behavioral3
Sample
VSL Q88.scr
Resource
win7-20220812-en
Behavioral task
behavioral4
Sample
VSL Q88.scr
Resource
win10v2004-20221111-en
General
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Target
VSL Q88.exe
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Size
17KB
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MD5
abb62deff1e4851be179ab55fb65e4a7
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SHA1
36d60ff07bcfdbe6c83c69079c954cc655bd9557
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SHA256
35a1eb3544b13e48380568cef531dec8473aa229fa4fccc532898b2c514f05ab
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SHA512
2e80e80a3c8b3aa4a2a49a8bdc618f464f399e98da68dac4a558282dc237cdd7e4a899969695661af3d462d0c46e211bbd9ae1ee8a55658f724d852cd98b1e6b
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SSDEEP
384:eBHyHMiAiIufjm2g6WeLLB3mDTQ8T3Jd:YHyHMi0ufj3H5F3mDF3T
Malware Config
Extracted
snakekeylogger
https://api.telegram.org/bot1897716112:AAEAtOCkOV8umHBB93Og24bkiIdUKReGK44/sendMessage?chat_id=1745211648
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/5084-144-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
VSL Q88.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation VSL Q88.exe -
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
Processes:
VSL Q88.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 VSL Q88.exe Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 VSL Q88.exe Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 VSL Q88.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
VSL Q88.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Koheb = "\"C:\\Users\\Admin\\AppData\\Roaming\\Cbmvw\\Koheb.exe\"" VSL Q88.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.
Processes:
flow ioc 22 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
VSL Q88.exedescription pid process target process PID 1312 set thread context of 5084 1312 VSL Q88.exe VSL Q88.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
powershell.exeVSL Q88.exeVSL Q88.exepid process 4740 powershell.exe 4740 powershell.exe 1312 VSL Q88.exe 1312 VSL Q88.exe 5084 VSL Q88.exe 5084 VSL Q88.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
VSL Q88.exepowershell.exeVSL Q88.exedescription pid process Token: SeDebugPrivilege 1312 VSL Q88.exe Token: SeDebugPrivilege 4740 powershell.exe Token: SeDebugPrivilege 5084 VSL Q88.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
VSL Q88.exedescription pid process target process PID 1312 wrote to memory of 4740 1312 VSL Q88.exe powershell.exe PID 1312 wrote to memory of 4740 1312 VSL Q88.exe powershell.exe PID 1312 wrote to memory of 4740 1312 VSL Q88.exe powershell.exe PID 1312 wrote to memory of 3768 1312 VSL Q88.exe VSL Q88.exe PID 1312 wrote to memory of 3768 1312 VSL Q88.exe VSL Q88.exe PID 1312 wrote to memory of 3768 1312 VSL Q88.exe VSL Q88.exe PID 1312 wrote to memory of 5084 1312 VSL Q88.exe VSL Q88.exe PID 1312 wrote to memory of 5084 1312 VSL Q88.exe VSL Q88.exe PID 1312 wrote to memory of 5084 1312 VSL Q88.exe VSL Q88.exe PID 1312 wrote to memory of 5084 1312 VSL Q88.exe VSL Q88.exe PID 1312 wrote to memory of 5084 1312 VSL Q88.exe VSL Q88.exe PID 1312 wrote to memory of 5084 1312 VSL Q88.exe VSL Q88.exe PID 1312 wrote to memory of 5084 1312 VSL Q88.exe VSL Q88.exe PID 1312 wrote to memory of 5084 1312 VSL Q88.exe VSL Q88.exe -
outlook_office_path 1 IoCs
Processes:
VSL Q88.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 VSL Q88.exe -
outlook_win_path 1 IoCs
Processes:
VSL Q88.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 VSL Q88.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\VSL Q88.exe"C:\Users\Admin\AppData\Local\Temp\VSL Q88.exe"
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\VSL Q88.exe"C:\Users\Admin\AppData\Local\Temp\VSL Q88.exe"
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C:\Users\Admin\AppData\Local\Temp\VSL Q88.exe"C:\Users\Admin\AppData\Local\Temp\VSL Q88.exe"
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\VSL Q88.exe.logFilesize
1KB
MD5e87e48b105757e1c7563d1c719059733
SHA128a3f2b2e0672da2b531f4757d2b20b53032dafc
SHA2560aaf22dc84cc3fcfe53de7ccfed8e662247dfb7f1a9967032c88790d0c663461
SHA512bf19c5743143aee914a453c41189c722c9b90a5b8bf299cecf3e1f97656d32cd209ecb74da8aebc89bb41c27d189f73aaaabbc64fe383410c95dc76ad4218968
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memory/1312-132-0x0000000000970000-0x000000000097A000-memory.dmpFilesize
40KB
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memory/1312-133-0x00000000063B0000-0x00000000063D2000-memory.dmpFilesize
136KB
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memory/3768-142-0x0000000000000000-mapping.dmp
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memory/4740-140-0x0000000007EE0000-0x000000000855A000-memory.dmpFilesize
6MB
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memory/4740-134-0x0000000000000000-mapping.dmp
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memory/4740-138-0x0000000006270000-0x00000000062D6000-memory.dmpFilesize
408KB
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memory/4740-139-0x0000000006880000-0x000000000689E000-memory.dmpFilesize
120KB
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memory/4740-136-0x0000000005980000-0x0000000005FA8000-memory.dmpFilesize
6MB
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memory/4740-141-0x0000000006D70000-0x0000000006D8A000-memory.dmpFilesize
104KB
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memory/4740-135-0x00000000052D0000-0x0000000005306000-memory.dmpFilesize
216KB
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memory/4740-137-0x0000000006190000-0x00000000061F6000-memory.dmpFilesize
408KB
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memory/5084-143-0x0000000000000000-mapping.dmp
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memory/5084-144-0x0000000000400000-0x0000000000426000-memory.dmpFilesize
152KB
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memory/5084-146-0x0000000005BB0000-0x0000000006154000-memory.dmpFilesize
5MB
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memory/5084-147-0x00000000054C0000-0x000000000555C000-memory.dmpFilesize
624KB
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memory/5084-148-0x00000000067F0000-0x00000000069B2000-memory.dmpFilesize
1MB
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memory/5084-149-0x00000000069C0000-0x0000000006A52000-memory.dmpFilesize
584KB
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memory/5084-150-0x0000000006740000-0x000000000674A000-memory.dmpFilesize
40KB