Analysis
- max time kernel
117s - max time network
122s - platform
windows7_x64 - resource
win7-en-20211208 - submitted
19/02/2022, 11:08
General
- Target wMxu1qFNTYjHMC0.exe
- Size 710KB
- Sample220219-m8jylabdfl
- SHA256 fa54a0e38ed90dc2ff10c8275a595a90b594864c1bcaeb9f3e9ff6d6e02ade28
Malware Config
Extracted
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snakekeylogger
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Protocol
smtp
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Host
smtp.fapierubber.com
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Port
587
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Username
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Password
JpQUNp#4
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Email to
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger Payload 4 IoCs
- Looks for VirtualBox Guest Additions in registry 2 TTPs
- Looks for VMWare Tools registry key 2 TTPs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- 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.
- Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
- 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 3 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 21 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\wMxu1qFNTYjHMC0.exe"C:\Users\Admin\AppData\Local\Temp\wMxu1qFNTYjHMC0.exe"1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- 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\Local\Temp\wMxu1qFNTYjHMC0.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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\bUevpYSlXDKS.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\bUevpYSlXDKS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7CAF.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\wMxu1qFNTYjHMC0.exe"C:\Users\Admin\AppData\Local\Temp\wMxu1qFNTYjHMC0.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
memory/1096-78-0x0000000002441000-0x0000000002442000-memory.dmp
memory/1096-75-0x000000006D331000-0x000000006D332000-memory.dmp
memory/1096-76-0x0000000002440000-0x0000000002441000-memory.dmp
memory/1096-77-0x000000006D332000-0x000000006D334000-memory.dmp
memory/1096-81-0x0000000002442000-0x0000000002444000-memory.dmp
memory/1104-64-0x0000000001F10000-0x0000000001F11000-memory.dmp
memory/1104-63-0x000000006D331000-0x000000006D332000-memory.dmp
memory/1104-65-0x000000006D332000-0x000000006D334000-memory.dmp
memory/1104-60-0x0000000075AC1000-0x0000000075AC3000-memory.dmp
memory/1104-67-0x0000000001F11000-0x0000000001F12000-memory.dmp
memory/1104-80-0x0000000001F12000-0x0000000001F14000-memory.dmp
memory/1236-73-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1236-72-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1236-79-0x000000007412E000-0x000000007412F000-memory.dmp
memory/1236-69-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1236-70-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1236-74-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1236-71-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1236-82-0x0000000004A90000-0x0000000004A91000-memory.dmp
memory/1396-55-0x0000000001080000-0x0000000001138000-memory.dmp
memory/1396-56-0x000000007412E000-0x000000007412F000-memory.dmp
memory/1396-57-0x0000000004E60000-0x0000000004E61000-memory.dmp
memory/1396-68-0x0000000004C80000-0x0000000004CA6000-memory.dmp
memory/1396-59-0x00000000053D0000-0x0000000005476000-memory.dmp
memory/1396-58-0x0000000000350000-0x000000000035E000-memory.dmp