Analysis
- max time kernel
145s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
04/04/2022, 10:20
General
- Target 5b8a8cc1a38d187c135b1bb57b77e26f.exe
- Size 1.0MB
- Sample220404-mc4ccsdee6
- SHA256 d87f01761f2fab9471424463590a2013da8df236dbb8ab22ac48bb9a039530e1
Malware Config
Extracted
-
Protocol
smtp
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Host
webmail.microjoining.com
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Port
587
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Username
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Password
micro1
Extracted
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snakekeylogger
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Protocol
smtp
-
Host
webmail.microjoining.com
-
Port
587
-
Username
-
Password
micro1
-
Email to
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger Payload 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 5 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\5b8a8cc1a38d187c135b1bb57b77e26f.exe"C:\Users\Admin\AppData\Local\Temp\5b8a8cc1a38d187c135b1bb57b77e26f.exe"1⤵
- Checks computer location settings
- 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" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\aHjAUiTfvd.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aHjAUiTfvd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE9B1.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\5b8a8cc1a38d187c135b1bb57b77e26f.exe"C:\Users\Admin\AppData\Local\Temp\5b8a8cc1a38d187c135b1bb57b77e26f.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\5b8a8cc1a38d187c135b1bb57b77e26f.exe"C:\Users\Admin\AppData\Local\Temp\5b8a8cc1a38d187c135b1bb57b77e26f.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
5b8a8cc1a38d187c135b1bb57b77e26f.exe.log
tmpE9B1.tmp
memory/1240-151-0x00000000064B0000-0x0000000006672000-memory.dmp
memory/1240-145-0x0000000000400000-0x0000000000426000-memory.dmp
memory/2132-147-0x0000000005670000-0x0000000005692000-memory.dmp
memory/2132-160-0x0000000007BE0000-0x0000000007BEE000-memory.dmp
memory/2132-140-0x0000000002D50000-0x0000000002D86000-memory.dmp
memory/2132-157-0x00000000079A0000-0x00000000079BA000-memory.dmp
memory/2132-144-0x00000000057B0000-0x0000000005DD8000-memory.dmp
memory/2132-162-0x0000000007CD0000-0x0000000007CD8000-memory.dmp
memory/2132-156-0x0000000008050000-0x00000000086CA000-memory.dmp
memory/2132-161-0x0000000007CF0000-0x0000000007D0A000-memory.dmp
memory/2132-158-0x0000000007A20000-0x0000000007A2A000-memory.dmp
memory/2132-148-0x0000000005F50000-0x0000000005FB6000-memory.dmp
memory/2132-149-0x0000000005FC0000-0x0000000006026000-memory.dmp
memory/2132-150-0x0000000006630000-0x000000000664E000-memory.dmp
memory/2132-159-0x0000000007C30000-0x0000000007CC6000-memory.dmp
memory/2132-152-0x0000000006BF0000-0x0000000006C22000-memory.dmp
memory/2132-153-0x000000006FE20000-0x000000006FE6C000-memory.dmp
memory/2132-154-0x0000000006BD0000-0x0000000006BEE000-memory.dmp
memory/2132-155-0x0000000002DF5000-0x0000000002DF7000-memory.dmp
memory/4028-136-0x00000000059C0000-0x00000000059CA000-memory.dmp
memory/4028-134-0x0000000005F50000-0x00000000064F4000-memory.dmp
memory/4028-133-0x0000000000F00000-0x000000000100A000-memory.dmp
memory/4028-135-0x0000000005A40000-0x0000000005AD2000-memory.dmp
memory/4028-137-0x0000000009420000-0x00000000094BC000-memory.dmp