Analysis
- max time kernel
145s - max time network
158s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
20/04/2023, 10:17
General
- Target Doc_670513_220pdf.exe
- Size 1.8MB
- Sample230420-mbd13shb83
- SHA256 d8cbea719dd030d085cf6a5e00cdd901594eeefc228e3dd2902c8e6fa6b92180
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
boldgritz.shop
-
Port
587
-
Username
-
Password
pfS7heL+-bL$
-
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
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 2 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.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Doc_670513_220pdf.exe"C:\Users\Admin\AppData\Local\Temp\Doc_670513_220pdf.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Users\Admin\AppData\Local\Temp\Doc_670513_220pdf.exeC:\Users\Admin\AppData\Local\Temp\Doc_670513_220pdf.exe2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
Doc_670513_220pdf.exe.log
__PSScriptPolicyTest_dd3sohuq.oxp.ps1
memory/1368-133-0x0000000000300000-0x00000000004C8000-memory.dmp
memory/1368-155-0x0000000005230000-0x0000000005240000-memory.dmp
memory/1368-135-0x0000000005660000-0x0000000005682000-memory.dmp
memory/1368-134-0x0000000005230000-0x0000000005240000-memory.dmp
memory/3380-172-0x0000000005990000-0x00000000059A0000-memory.dmp
memory/3380-171-0x0000000007820000-0x00000000079E2000-memory.dmp
memory/3380-170-0x0000000007600000-0x0000000007650000-memory.dmp
memory/3380-169-0x0000000007360000-0x000000000736A000-memory.dmp
memory/3380-168-0x00000000073E0000-0x0000000007472000-memory.dmp
memory/3380-167-0x0000000005990000-0x00000000059A0000-memory.dmp
memory/3380-166-0x0000000005DB0000-0x0000000006354000-memory.dmp
memory/3380-163-0x0000000000400000-0x0000000000430000-memory.dmp
memory/3980-138-0x0000000002B60000-0x0000000002B70000-memory.dmp
memory/3980-156-0x0000000002B60000-0x0000000002B70000-memory.dmp
memory/3980-157-0x0000000002B60000-0x0000000002B70000-memory.dmp
memory/3980-158-0x0000000002B60000-0x0000000002B70000-memory.dmp
memory/3980-154-0x0000000006940000-0x000000000695A000-memory.dmp
memory/3980-153-0x0000000007CB0000-0x000000000832A000-memory.dmp
memory/3980-152-0x0000000002B60000-0x0000000002B70000-memory.dmp
memory/3980-151-0x0000000005210000-0x000000000522E000-memory.dmp
memory/3980-141-0x0000000005DF0000-0x0000000005E56000-memory.dmp
memory/3980-140-0x0000000005590000-0x00000000055F6000-memory.dmp
memory/3980-139-0x0000000002B60000-0x0000000002B70000-memory.dmp
memory/3980-137-0x0000000005610000-0x0000000005C38000-memory.dmp
memory/3980-136-0x0000000002B20000-0x0000000002B56000-memory.dmp