Analysis
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max time kernel
69s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
23-11-2022 12:02
Static task
static1
Behavioral task
behavioral1
Sample
MV ASPL TBN.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
MV ASPL TBN.exe
Resource
win10v2004-20220901-en
General
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Target
MV ASPL TBN.exe
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Size
166KB
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MD5
28fa19adec2fa9a8d1e8d67310d58f0b
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SHA1
58e964eec035d120bfdd5c8968f227fc516f8893
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SHA256
9c0cab2fc38f52243eff7e3fa43e088d76b0a77d1253230c0d9b28c8f64f611d
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SHA512
f61c3ce86850e2ccb50fb2555229b52f0300088294e7f419169a4d309ef0c63807e7cb12bc47fe04d78e7b1b2fb71952c08483c17119d439138d17695435226d
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SSDEEP
384:eHHVieHKQN6dmOSACCB0W77EldnvGNDj:eHH5N64OSACCBSdnvGNn
Malware Config
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/3788-145-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
MV ASPL TBN.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation MV ASPL TBN.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:
MV ASPL TBN.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MV ASPL TBN.exe Key opened \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MV ASPL TBN.exe Key opened \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MV ASPL TBN.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
MV ASPL TBN.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Qrfjle = "\"C:\\Users\\Admin\\AppData\\Roaming\\Pswahl\\Qrfjle.exe\"" MV ASPL TBN.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 31 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
MV ASPL TBN.exedescription pid process target process PID 1716 set thread context of 3788 1716 MV ASPL TBN.exe MV ASPL TBN.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 4 IoCs
Processes:
powershell.exeMV ASPL TBN.exepid process 240 powershell.exe 240 powershell.exe 3788 MV ASPL TBN.exe 3788 MV ASPL TBN.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
MV ASPL TBN.exepowershell.exeMV ASPL TBN.exedescription pid process Token: SeDebugPrivilege 1716 MV ASPL TBN.exe Token: SeDebugPrivilege 240 powershell.exe Token: SeDebugPrivilege 3788 MV ASPL TBN.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
MV ASPL TBN.exedescription pid process target process PID 1716 wrote to memory of 240 1716 MV ASPL TBN.exe powershell.exe PID 1716 wrote to memory of 240 1716 MV ASPL TBN.exe powershell.exe PID 1716 wrote to memory of 240 1716 MV ASPL TBN.exe powershell.exe PID 1716 wrote to memory of 3788 1716 MV ASPL TBN.exe MV ASPL TBN.exe PID 1716 wrote to memory of 3788 1716 MV ASPL TBN.exe MV ASPL TBN.exe PID 1716 wrote to memory of 3788 1716 MV ASPL TBN.exe MV ASPL TBN.exe PID 1716 wrote to memory of 3788 1716 MV ASPL TBN.exe MV ASPL TBN.exe PID 1716 wrote to memory of 3788 1716 MV ASPL TBN.exe MV ASPL TBN.exe PID 1716 wrote to memory of 3788 1716 MV ASPL TBN.exe MV ASPL TBN.exe PID 1716 wrote to memory of 3788 1716 MV ASPL TBN.exe MV ASPL TBN.exe PID 1716 wrote to memory of 3788 1716 MV ASPL TBN.exe MV ASPL TBN.exe -
outlook_office_path 1 IoCs
Processes:
MV ASPL TBN.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MV ASPL TBN.exe -
outlook_win_path 1 IoCs
Processes:
MV ASPL TBN.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MV ASPL TBN.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\MV ASPL TBN.exe"C:\Users\Admin\AppData\Local\Temp\MV ASPL TBN.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1716 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMwAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:240 -
C:\Users\Admin\AppData\Local\Temp\MV ASPL TBN.exe"C:\Users\Admin\AppData\Local\Temp\MV ASPL TBN.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3788
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD5026fb31495d30e5dbfd00f398c2efbf8
SHA19cda8f5f58129e4d592ca1b9867835c86f38ab1b
SHA256b008f16eeae90b4c6ba119fb308616c0795cdaca51adf2b64470a0c01aeeb8b7
SHA5126d1cc01c90613522cfb7be7ea67ff03732b367dfc7bfd245ad6d7ea8e5e5def431b3339d17893b7b193cee2c3b4c22a459acd3d852ee88fce711e30c5af195a1