Analysis
- max time kernel
107s - max time network
131s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
06/04/2023, 14:02
General
- Target QUOTATION.exe
- Size 562KB
- Sample230406-rb33esdd55
- SHA256 71bb21d0c0cd50a53a292e523455a0b270fa255f63cd132395fded0d91c447d4
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.mitcomicrons.com
-
Port
587
-
Username
-
Password
mitco#123
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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
- 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 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe"C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vxRfCYilB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4F58.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
QUOTATION.exe.log
tmp4F58.tmp
memory/1684-136-0x0000000005800000-0x000000000589C000-memory.dmp
memory/1684-133-0x0000000000C90000-0x0000000000D22000-memory.dmp
memory/1684-137-0x00000000059D0000-0x00000000059E0000-memory.dmp
memory/1684-138-0x0000000005770000-0x000000000577A000-memory.dmp
memory/1684-139-0x00000000059D0000-0x00000000059E0000-memory.dmp
memory/1684-135-0x00000000056C0000-0x0000000005752000-memory.dmp
memory/1684-134-0x0000000005B80000-0x0000000006124000-memory.dmp
memory/4280-143-0x0000000000400000-0x0000000000430000-memory.dmp
memory/4280-146-0x00000000050D0000-0x0000000005136000-memory.dmp
memory/4280-147-0x0000000005030000-0x0000000005040000-memory.dmp
memory/4280-148-0x0000000006440000-0x0000000006490000-memory.dmp
memory/4280-149-0x00000000066B0000-0x0000000006872000-memory.dmp
memory/4280-150-0x0000000005030000-0x0000000005040000-memory.dmp