Analysis
- max time kernel
69s - max time network
130s - platform
windows7_x64 - resource
win7-20230621-en - resource tags
- submitted
26/06/2023, 15:42
General
- Target MRKU8781602.exe
- Size 549KB
- Sample230626-s5b2gabc21
- SHA256 0ee11589280de3ddb6f2a74d5245f32bdf5b93af0e86aaae3e282744bc445397
Malware Config
Extracted
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snakekeylogger
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Protocol
smtp
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Host
mail.wilcon.com.ph
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Port
587
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Username
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Password
password@cashier
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Email to
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https://api.telegram.org/bot5839027687:AAGrC4UWgd0JQxMHOf1dCehA-oSrYF_Bez8/sendMessage?chat_id=1094077450
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 5 IoCs
- 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 1 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).
- 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 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 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\MRKU8781602.exe"C:\Users\Admin\AppData\Local\Temp\MRKU8781602.exe"1⤵
- Suspicious use of SetThreadContext
- 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\YgdVFbBry.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\YgdVFbBry" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD6FF.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\MRKU8781602.exe"C:\Users\Admin\AppData\Local\Temp\MRKU8781602.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
tmpD6FF.tmp
memory/268-77-0x00000000026C0000-0x0000000002700000-memory.dmp
memory/284-70-0x0000000000400000-0x0000000000426000-memory.dmp
memory/284-69-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/284-78-0x0000000001310000-0x0000000001350000-memory.dmp
memory/284-74-0x0000000000400000-0x0000000000426000-memory.dmp
memory/284-72-0x0000000000400000-0x0000000000426000-memory.dmp
memory/284-65-0x0000000000400000-0x0000000000426000-memory.dmp
memory/284-66-0x0000000000400000-0x0000000000426000-memory.dmp
memory/284-67-0x0000000000400000-0x0000000000426000-memory.dmp
memory/284-68-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1288-56-0x0000000000350000-0x000000000035C000-memory.dmp
memory/1288-54-0x00000000013B0000-0x0000000001440000-memory.dmp
memory/1288-57-0x0000000004DF0000-0x0000000004E30000-memory.dmp
memory/1288-59-0x0000000004C00000-0x0000000004C60000-memory.dmp
memory/1288-55-0x0000000004DF0000-0x0000000004E30000-memory.dmp
memory/1288-58-0x0000000000580000-0x000000000058C000-memory.dmp