Analysis
- max time kernel
120s - max time network
163s - platform
windows7_x64 - resource
win7-en-20211208 - submitted
20/01/2022, 08:13
General
- Target DHL AWB#68625.pdf.exe
- Size 351KB
- Sample220120-j4e73ahaa7
- SHA256 f2a224c514f49ca2f17c6aee38fdf8d61516ff9f68dd3d335b3e5850c6b5a8e1
Malware Config
Extracted
-
snakekeylogger
-
Protocol
smtp
-
Host
mail.crestftb.com
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Port
587
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Username
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Password
BRIAN22@1234567891011
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger Payload 4 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 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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\DHL AWB#68625.pdf.exe"C:\Users\Admin\AppData\Local\Temp\DHL AWB#68625.pdf.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\gnDmrTolNrlPEc.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gnDmrTolNrlPEc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBDB4.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\DHL AWB#68625.pdf.exe"C:\Users\Admin\AppData\Local\Temp\DHL AWB#68625.pdf.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/580-73-0x0000000001D52000-0x0000000001D54000-memory.dmp
memory/580-71-0x0000000001D50000-0x0000000001D51000-memory.dmp
memory/580-72-0x0000000001D51000-0x0000000001D52000-memory.dmp
memory/1544-70-0x0000000004A90000-0x0000000004A91000-memory.dmp
memory/1544-61-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1544-62-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1544-64-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1544-63-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1544-65-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1544-66-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1892-58-0x0000000005010000-0x0000000005062000-memory.dmp
memory/1892-54-0x00000000002A0000-0x00000000002FC000-memory.dmp
memory/1892-57-0x00000000006D0000-0x00000000006DC000-memory.dmp
memory/1892-56-0x00000000049D0000-0x00000000049D1000-memory.dmp
memory/1892-55-0x00000000751B1000-0x00000000751B3000-memory.dmp