Analysis
- max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
07/06/2024, 01:37
General
- Target 59a171cad8778f50a4d3d80c3db0a337013e210e8aa147546ef8aeb360bbc11c.exe
- Size 687KB
- Sample240607-b1431sfd7t
- SHA256 59a171cad8778f50a4d3d80c3db0a337013e210e8aa147546ef8aeb360bbc11c
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.merlinmotorworks.com
-
Port
587
-
Username
-
Password
Merlin1080S
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.merlinmotorworks.com
-
Port
587
-
Username
-
Password
Merlin1080S
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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.
- Looks up external IP address via web service 1 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).
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\59a171cad8778f50a4d3d80c3db0a337013e210e8aa147546ef8aeb360bbc11c.exe"C:\Users\Admin\AppData\Local\Temp\59a171cad8778f50a4d3d80c3db0a337013e210e8aa147546ef8aeb360bbc11c.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\59a171cad8778f50a4d3d80c3db0a337013e210e8aa147546ef8aeb360bbc11c.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\59a171cad8778f50a4d3d80c3db0a337013e210e8aa147546ef8aeb360bbc11c.exe"C:\Users\Admin\AppData\Local\Temp\59a171cad8778f50a4d3d80c3db0a337013e210e8aa147546ef8aeb360bbc11c.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
__PSScriptPolicyTest_ve545wzj.obb.ps1
memory/1368-11-0x0000000000400000-0x0000000000442000-memory.dmp
memory/1368-18-0x0000000074650000-0x0000000074E00000-memory.dmp
memory/1368-52-0x0000000006E60000-0x0000000006EB0000-memory.dmp
memory/1368-16-0x00000000057D0000-0x0000000005836000-memory.dmp
memory/1368-62-0x0000000074650000-0x0000000074E00000-memory.dmp
memory/1368-13-0x0000000074650000-0x0000000074E00000-memory.dmp
memory/4548-4-0x0000000004E30000-0x0000000004E3A000-memory.dmp
memory/4548-8-0x0000000005420000-0x0000000005430000-memory.dmp
memory/4548-9-0x00000000060B0000-0x0000000006134000-memory.dmp
memory/4548-10-0x0000000008860000-0x00000000088FC000-memory.dmp
memory/4548-7-0x00000000050F0000-0x00000000050FE000-memory.dmp
memory/4548-6-0x00000000050A0000-0x00000000050B6000-memory.dmp
memory/4548-14-0x0000000074650000-0x0000000074E00000-memory.dmp
memory/4548-5-0x0000000074650000-0x0000000074E00000-memory.dmp
memory/4548-0-0x000000007465E000-0x000000007465F000-memory.dmp
memory/4548-3-0x0000000004EB0000-0x0000000004F42000-memory.dmp
memory/4548-2-0x0000000005460000-0x0000000005A04000-memory.dmp
memory/4548-1-0x0000000000390000-0x0000000000440000-memory.dmp
memory/4668-22-0x0000000005EC0000-0x0000000005F26000-memory.dmp
memory/4668-48-0x00000000076A0000-0x0000000007743000-memory.dmp
memory/4668-21-0x00000000056E0000-0x0000000005702000-memory.dmp
memory/4668-17-0x00000000057E0000-0x0000000005E08000-memory.dmp
memory/4668-28-0x00000000060A0000-0x00000000063F4000-memory.dmp
memory/4668-33-0x0000000074650000-0x0000000074E00000-memory.dmp
memory/4668-35-0x00000000066C0000-0x000000000670C000-memory.dmp
memory/4668-34-0x0000000006690000-0x00000000066AE000-memory.dmp
memory/4668-37-0x00000000702B0000-0x00000000702FC000-memory.dmp
memory/4668-36-0x0000000007660000-0x0000000007692000-memory.dmp
memory/4668-47-0x0000000006C50000-0x0000000006C6E000-memory.dmp
memory/4668-20-0x0000000074650000-0x0000000074E00000-memory.dmp
memory/4668-49-0x0000000007FF0000-0x000000000866A000-memory.dmp
memory/4668-50-0x00000000079B0000-0x00000000079CA000-memory.dmp
memory/4668-51-0x0000000007A20000-0x0000000007A2A000-memory.dmp
memory/4668-19-0x0000000074650000-0x0000000074E00000-memory.dmp
memory/4668-53-0x0000000007C30000-0x0000000007CC6000-memory.dmp
memory/4668-54-0x0000000007BB0000-0x0000000007BC1000-memory.dmp
memory/4668-55-0x0000000007BE0000-0x0000000007BEE000-memory.dmp
memory/4668-56-0x0000000007BF0000-0x0000000007C04000-memory.dmp
memory/4668-57-0x0000000007CF0000-0x0000000007D0A000-memory.dmp
memory/4668-58-0x0000000007CD0000-0x0000000007CD8000-memory.dmp
memory/4668-61-0x0000000074650000-0x0000000074E00000-memory.dmp
memory/4668-15-0x00000000050C0000-0x00000000050F6000-memory.dmp