Analysis
- max time kernel
125s - max time network
126s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
20/06/2024, 01:55
General
- Target bb7a778a488705a0eea4ce0276fb8e4bd38c6756c028bcf46efda1d3a4f70820.exe
- Size 648KB
- Sample240620-ccbl8swhmk
- SHA256 bb7a778a488705a0eea4ce0276fb8e4bd38c6756c028bcf46efda1d3a4f70820
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot7225613964:AAG6Hv9Z2QzKgYOOnPDkWsjfYDctWTf1ORE/
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 WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
- 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.
- 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).
- 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 10 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\bb7a778a488705a0eea4ce0276fb8e4bd38c6756c028bcf46efda1d3a4f70820.exe"C:\Users\Admin\AppData\Local\Temp\bb7a778a488705a0eea4ce0276fb8e4bd38c6756c028bcf46efda1d3a4f70820.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\bb7a778a488705a0eea4ce0276fb8e4bd38c6756c028bcf46efda1d3a4f70820.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZHlXamlw.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\ZHlXamlw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2E20.tmp"2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\bb7a778a488705a0eea4ce0276fb8e4bd38c6756c028bcf46efda1d3a4f70820.exe"C:\Users\Admin\AppData\Local\Temp\bb7a778a488705a0eea4ce0276fb8e4bd38c6756c028bcf46efda1d3a4f70820.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3756,i,9746875443948590908,1444894342962555245,262144 --variations-seed-version --mojo-platform-channel-handle=4232 /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_bngfea3q.ysm.ps1
tmp2E20.tmp
chome.exe
memory/2800-7-0x00000000059E0000-0x00000000059E8000-memory.dmp
memory/2800-6-0x00000000059B0000-0x00000000059C2000-memory.dmp
memory/2800-8-0x00000000059F0000-0x00000000059FC000-memory.dmp
memory/2800-48-0x0000000074810000-0x0000000074FC0000-memory.dmp
memory/2800-9-0x0000000006A00000-0x0000000006A86000-memory.dmp
memory/2800-10-0x0000000009150000-0x00000000091EC000-memory.dmp
memory/2800-5-0x0000000074810000-0x0000000074FC0000-memory.dmp
memory/2800-0-0x000000007481E000-0x000000007481F000-memory.dmp
memory/2800-4-0x00000000056B0000-0x00000000056BA000-memory.dmp
memory/2800-3-0x00000000056C0000-0x0000000005752000-memory.dmp
memory/2800-2-0x0000000005BD0000-0x0000000006174000-memory.dmp
memory/2800-1-0x0000000000C20000-0x0000000000CC8000-memory.dmp
memory/3044-16-0x0000000074810000-0x0000000074FC0000-memory.dmp
memory/3044-78-0x0000000007DA0000-0x0000000007DB1000-memory.dmp
memory/3044-19-0x00000000058C0000-0x00000000058E2000-memory.dmp
memory/3044-76-0x0000000007C10000-0x0000000007C1A000-memory.dmp
memory/3044-91-0x0000000074810000-0x0000000074FC0000-memory.dmp
memory/3044-75-0x0000000007BA0000-0x0000000007BBA000-memory.dmp
memory/3044-15-0x0000000002F50000-0x0000000002F86000-memory.dmp
memory/3044-21-0x00000000059D0000-0x0000000005A36000-memory.dmp
memory/3044-47-0x0000000074810000-0x0000000074FC0000-memory.dmp
memory/3044-18-0x0000000074810000-0x0000000074FC0000-memory.dmp
memory/3044-50-0x0000000006DE0000-0x0000000006E2C000-memory.dmp
memory/3044-49-0x0000000006880000-0x000000000689E000-memory.dmp
memory/3044-51-0x0000000007860000-0x0000000007892000-memory.dmp
memory/3044-77-0x0000000007E20000-0x0000000007EB6000-memory.dmp
memory/3044-72-0x0000000006E30000-0x0000000006E4E000-memory.dmp
memory/3044-20-0x0000000005960000-0x00000000059C6000-memory.dmp
memory/3044-52-0x0000000070EE0000-0x0000000070F2C000-memory.dmp
memory/3044-74-0x00000000081F0000-0x000000000886A000-memory.dmp
memory/4276-45-0x0000000000400000-0x0000000000444000-memory.dmp
memory/4276-92-0x0000000006DF0000-0x0000000006E40000-memory.dmp
memory/4884-73-0x0000000007850000-0x00000000078F3000-memory.dmp
memory/4884-62-0x0000000070EE0000-0x0000000070F2C000-memory.dmp
memory/4884-17-0x0000000005860000-0x0000000005E88000-memory.dmp
memory/4884-81-0x0000000007B90000-0x0000000007B9E000-memory.dmp
memory/4884-82-0x0000000007BA0000-0x0000000007BB4000-memory.dmp
memory/4884-83-0x0000000007CA0000-0x0000000007CBA000-memory.dmp
memory/4884-84-0x0000000007C80000-0x0000000007C88000-memory.dmp
memory/4884-22-0x0000000074810000-0x0000000074FC0000-memory.dmp
memory/4884-33-0x0000000005FE0000-0x0000000006334000-memory.dmp
memory/4884-90-0x0000000074810000-0x0000000074FC0000-memory.dmp
memory/4884-44-0x0000000074810000-0x0000000074FC0000-memory.dmp
memory/4884-34-0x0000000074810000-0x0000000074FC0000-memory.dmp