Analysis
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max time kernel
90s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
05/01/2023, 08:19
Static task
static1
Behavioral task
behavioral1
Sample
BL Draft Copy.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
BL Draft Copy.exe
Resource
win10v2004-20221111-en
General
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Target
BL Draft Copy.exe
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Size
863KB
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MD5
5f76ec4261e9ee6104cadf963e1fdefe
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SHA1
4bd2b0895e37e92d70f5ae463aafbc7e912cb07a
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SHA256
41ec6096bbedc3527a97d8a427988cd2885bb23eebefbe17c563a1e5aff52586
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SHA512
15770c50185e4594f64a2cc16b641093a347845ce68d701b65d3981967ba3f4a797656bcc7d4382d17d358be61dbe53833dfd1e8680af7195768c8e4479324a7
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SSDEEP
24576:76AnFoJiY3TZ5ae0lVw+BBUWxn48qKoe:7dFW8e0ggBUg9qKoe
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
kiamotors-khyber.com - Port:
587 - Username:
[email protected] - Password:
Bno-MD&$40Kjy(Yd
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 1 IoCs
resource yara_rule behavioral2/memory/4284-146-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation BL Draft Copy.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
description 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 BL Draft Copy.exe Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 BL Draft Copy.exe Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 BL Draft Copy.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Vvkzfazu = "\"C:\\Users\\Admin\\AppData\\Roaming\\Lowaerfe\\Vvkzfazu.exe\"" BL Draft Copy.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 22 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4584 set thread context of 4284 4584 BL Draft Copy.exe 90 -
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
pid Process 3816 powershell.exe 3816 powershell.exe 4284 BL Draft Copy.exe 4284 BL Draft Copy.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4584 BL Draft Copy.exe Token: SeDebugPrivilege 3816 powershell.exe Token: SeDebugPrivilege 4284 BL Draft Copy.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 4584 wrote to memory of 3816 4584 BL Draft Copy.exe 82 PID 4584 wrote to memory of 3816 4584 BL Draft Copy.exe 82 PID 4584 wrote to memory of 3816 4584 BL Draft Copy.exe 82 PID 4584 wrote to memory of 4284 4584 BL Draft Copy.exe 90 PID 4584 wrote to memory of 4284 4584 BL Draft Copy.exe 90 PID 4584 wrote to memory of 4284 4584 BL Draft Copy.exe 90 PID 4584 wrote to memory of 4284 4584 BL Draft Copy.exe 90 PID 4584 wrote to memory of 4284 4584 BL Draft Copy.exe 90 PID 4584 wrote to memory of 4284 4584 BL Draft Copy.exe 90 PID 4584 wrote to memory of 4284 4584 BL Draft Copy.exe 90 PID 4584 wrote to memory of 4284 4584 BL Draft Copy.exe 90 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 BL Draft Copy.exe -
outlook_win_path 1 IoCs
description 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 BL Draft Copy.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\BL Draft Copy.exe"C:\Users\Admin\AppData\Local\Temp\BL Draft Copy.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:4584 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3816
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C:\Users\Admin\AppData\Local\Temp\BL Draft Copy.exe"C:\Users\Admin\AppData\Local\Temp\BL Draft Copy.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4284
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