Analysis
- max time kernel
150s - max time network
152s - platform
windows10_x64 - resource
win10v20201028 - submitted
11/02/2021, 07:22
General
- Target DHL_FORM_9950983745_PDF.exe
- Size 1.4MB
- Sample210211-gjhler37ks
- SHA256 9dde30eea4bc51f6561d857ecb624f09e3257c3a015ff49a8f22f206fcab45c1
Malware Config
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger Payload 2 IoCs
- Executes dropped EXE 2 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.
- Adds Run key to start application 2 TTPs 2 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.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 20 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\DHL_FORM_9950983745_PDF.exe"C:\Users\Admin\AppData\Local\Temp\DHL_FORM_9950983745_PDF.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "DHL_FORM_9950983745" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\DHL_FORM_9950983745.exe"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\reg.exeREG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "DHL_FORM_9950983745" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\DHL_FORM_9950983745.exe"3⤵
- Adds Run key to start application
-
-
-
C:\Users\Admin\AppData\Roaming\DHL_FORM_9950983745.exe"C:\Users\Admin\AppData\Roaming\DHL_FORM_9950983745.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\DHL_FORM_9950983745.exe"C:\Users\Admin\AppData\Roaming\DHL_FORM_9950983745.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/1004-32-0x000000000CB80000-0x000000000CB81000-memory.dmp
memory/1004-31-0x0000000009B70000-0x0000000009B7B000-memory.dmp
memory/1004-30-0x0000000005F71000-0x0000000005F72000-memory.dmp
memory/1004-26-0x0000000005F70000-0x0000000005F71000-memory.dmp
memory/1004-19-0x0000000073430000-0x0000000073B1E000-memory.dmp
memory/1772-37-0x0000000073430000-0x0000000073B1E000-memory.dmp
memory/1772-45-0x0000000005D80000-0x0000000005D81000-memory.dmp
memory/1772-43-0x0000000005E10000-0x0000000005E11000-memory.dmp
memory/1772-42-0x0000000004BC0000-0x0000000004BC1000-memory.dmp
memory/1772-38-0x00000000005A0000-0x000000000060A000-memory.dmp
memory/4688-6-0x0000000005960000-0x0000000005961000-memory.dmp
memory/4688-15-0x00000000058F1000-0x00000000058F2000-memory.dmp
memory/4688-5-0x00000000053C0000-0x00000000053C1000-memory.dmp
memory/4688-2-0x0000000073430000-0x0000000073B1E000-memory.dmp
memory/4688-7-0x0000000005460000-0x0000000005461000-memory.dmp
memory/4688-3-0x0000000000970000-0x0000000000971000-memory.dmp
memory/4688-8-0x0000000005500000-0x0000000005501000-memory.dmp
memory/4688-9-0x00000000058F0000-0x00000000058F1000-memory.dmp
memory/4688-11-0x0000000006B90000-0x0000000006BAE000-memory.dmp
memory/4688-12-0x0000000009120000-0x0000000009121000-memory.dmp