Analysis
- max time kernel
52s - max time network
50s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
20/06/2024, 02:12
General
- Target 85c3b6f8dd3a10a7f25bfbd865fe7ee4edc5dd560072e4541fcf89c71b7f201c.exe
- Size 729KB
- Sample240620-cm2amstala
- SHA256 85c3b6f8dd3a10a7f25bfbd865fe7ee4edc5dd560072e4541fcf89c71b7f201c
Malware Config
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 2 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).
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 18 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\85c3b6f8dd3a10a7f25bfbd865fe7ee4edc5dd560072e4541fcf89c71b7f201c.exe"C:\Users\Admin\AppData\Local\Temp\85c3b6f8dd3a10a7f25bfbd865fe7ee4edc5dd560072e4541fcf89c71b7f201c.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- 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\85c3b6f8dd3a10a7f25bfbd865fe7ee4edc5dd560072e4541fcf89c71b7f201c.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\CbLOvw.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CbLOvw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC7A5.tmp"2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\85c3b6f8dd3a10a7f25bfbd865fe7ee4edc5dd560072e4541fcf89c71b7f201c.exe"C:\Users\Admin\AppData\Local\Temp\85c3b6f8dd3a10a7f25bfbd865fe7ee4edc5dd560072e4541fcf89c71b7f201c.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
85c3b6f8dd3a10a7f25bfbd865fe7ee4edc5dd560072e4541fcf89c71b7f201c.exe.log
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_okhm0ghh.r3c.ps1
tmpC7A5.tmp
memory/1840-6-0x0000000074B20000-0x00000000752D0000-memory.dmp
memory/1840-4-0x00000000052E0000-0x00000000052EA000-memory.dmp
memory/1840-7-0x00000000056A0000-0x00000000056BA000-memory.dmp
memory/1840-8-0x00000000053B0000-0x00000000053C0000-memory.dmp
memory/1840-9-0x0000000006BC0000-0x0000000006C44000-memory.dmp
memory/1840-10-0x0000000074B2E000-0x0000000074B2F000-memory.dmp
memory/1840-11-0x0000000074B20000-0x00000000752D0000-memory.dmp
memory/1840-5-0x00000000053C0000-0x000000000545C000-memory.dmp
memory/1840-3-0x0000000005120000-0x00000000051B2000-memory.dmp
memory/1840-0-0x0000000074B2E000-0x0000000074B2F000-memory.dmp
memory/1840-2-0x00000000056D0000-0x0000000005C74000-memory.dmp
memory/1840-50-0x0000000074B20000-0x00000000752D0000-memory.dmp
memory/1840-1-0x0000000000680000-0x000000000073C000-memory.dmp
memory/2304-66-0x0000000007D80000-0x00000000083FA000-memory.dmp
memory/2304-65-0x0000000007440000-0x00000000074E3000-memory.dmp
memory/2304-23-0x0000000005E10000-0x0000000005E76000-memory.dmp
memory/2304-22-0x0000000005BF0000-0x0000000005C56000-memory.dmp
memory/2304-91-0x0000000074B20000-0x00000000752D0000-memory.dmp
memory/2304-37-0x0000000005E80000-0x00000000061D4000-memory.dmp
memory/2304-16-0x0000000002B00000-0x0000000002B36000-memory.dmp
memory/2304-17-0x0000000074B20000-0x00000000752D0000-memory.dmp
memory/2304-21-0x0000000005370000-0x0000000005392000-memory.dmp
memory/2304-20-0x0000000074B20000-0x00000000752D0000-memory.dmp
memory/2304-18-0x0000000005510000-0x0000000005B38000-memory.dmp
memory/2304-51-0x00000000063F0000-0x000000000640E000-memory.dmp
memory/2304-52-0x00000000069E0000-0x0000000006A2C000-memory.dmp
memory/2304-54-0x00000000753D0000-0x000000007541C000-memory.dmp
memory/2304-64-0x0000000006990000-0x00000000069AE000-memory.dmp
memory/2304-82-0x0000000007980000-0x0000000007994000-memory.dmp
memory/2304-53-0x0000000006A40000-0x0000000006A72000-memory.dmp
memory/2304-67-0x0000000007740000-0x000000000775A000-memory.dmp
memory/2304-19-0x0000000074B20000-0x00000000752D0000-memory.dmp
memory/2304-81-0x0000000007970000-0x000000000797E000-memory.dmp
memory/2304-78-0x00000000077B0000-0x00000000077BA000-memory.dmp
memory/2304-79-0x00000000079C0000-0x0000000007A56000-memory.dmp
memory/2304-80-0x0000000007940000-0x0000000007951000-memory.dmp
memory/4384-68-0x00000000753D0000-0x000000007541C000-memory.dmp
memory/4384-24-0x0000000074B20000-0x00000000752D0000-memory.dmp
memory/4384-83-0x0000000007250000-0x000000000726A000-memory.dmp
memory/4384-84-0x0000000007230000-0x0000000007238000-memory.dmp
memory/4384-90-0x0000000074B20000-0x00000000752D0000-memory.dmp
memory/4384-32-0x0000000074B20000-0x00000000752D0000-memory.dmp
memory/4384-26-0x0000000074B20000-0x00000000752D0000-memory.dmp
memory/5040-47-0x0000000000400000-0x0000000000442000-memory.dmp
memory/5040-92-0x0000000006460000-0x00000000064B0000-memory.dmp