Analysis
- max time kernel
108s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
07/07/2022, 12:05
General
- Target d3a2d86c77c2ee229ba0e1b8cbc45442.exe
- Size 88KB
- Sample220707-n86b9saag4
- SHA256 7887aebb0bce6a49dca946ca99b69c3fad43bf7b66eb94a5491c8fc20847d52f
Malware Config
Extracted
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
xvdUCau3
Signatures
- 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
- Adds Run key to start application 2 TTPs 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\d3a2d86c77c2ee229ba0e1b8cbc45442.exe"C:\Users\Admin\AppData\Local\Temp\d3a2d86c77c2ee229ba0e1b8cbc45442.exe"1⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1260-130-0x0000000000AA0000-0x0000000000ABC000-memory.dmp
memory/1260-144-0x00000000071B0000-0x00000000071BA000-memory.dmp
memory/1260-143-0x00000000072D0000-0x0000000007362000-memory.dmp
memory/1260-142-0x00000000071E0000-0x0000000007230000-memory.dmp
memory/1260-141-0x0000000006530000-0x00000000065CC000-memory.dmp
memory/1260-140-0x0000000006AE0000-0x0000000007084000-memory.dmp
memory/1592-136-0x0000000006040000-0x00000000060A6000-memory.dmp
memory/1592-137-0x0000000006720000-0x000000000673E000-memory.dmp
memory/1592-138-0x0000000007D80000-0x00000000083FA000-memory.dmp
memory/1592-139-0x0000000006B90000-0x0000000006BAA000-memory.dmp
memory/1592-135-0x00000000057F0000-0x0000000005856000-memory.dmp
memory/1592-134-0x00000000055D0000-0x00000000055F2000-memory.dmp
memory/1592-133-0x00000000058A0000-0x0000000005EC8000-memory.dmp
memory/1592-132-0x00000000050F0000-0x0000000005126000-memory.dmp