Analysis
- max time kernel
91s - max time network
120s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
22/11/2022, 14:42
General
- Target XBH2wJXWhhezh1n.exe
- Size 1.0MB
- Sample221122-r21d8abb4s
- SHA256 2980f607058a2ba908559bdedbbd019edd4b52377e5f884d36a62bf9aac8be00
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot5453942321:AAF6CS9julQ6K7s5pxacNALwWJ2A52D0EC4/
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.
- 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.
- 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 7 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\XBH2wJXWhhezh1n.exe"C:\Users\Admin\AppData\Local\Temp\XBH2wJXWhhezh1n.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\Roaming\lWjWWmgm.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lWjWWmgm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6D02.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
tmp6D02.tmp
memory/1808-133-0x0000000005BC0000-0x0000000006164000-memory.dmp
memory/1808-134-0x00000000056B0000-0x0000000005742000-memory.dmp
memory/1808-135-0x0000000005670000-0x000000000567A000-memory.dmp
memory/1808-136-0x00000000093D0000-0x000000000946C000-memory.dmp
memory/1808-132-0x0000000000BC0000-0x0000000000CCC000-memory.dmp
memory/3564-158-0x0000000006960000-0x00000000069B0000-memory.dmp
memory/3564-143-0x0000000000400000-0x000000000043C000-memory.dmp
memory/4268-144-0x0000000005570000-0x0000000005592000-memory.dmp
memory/4268-151-0x0000000007F90000-0x000000000860A000-memory.dmp
memory/4268-139-0x0000000005070000-0x00000000050A6000-memory.dmp
memory/4268-145-0x0000000005DE0000-0x0000000005E46000-memory.dmp
memory/4268-146-0x0000000005FD0000-0x0000000006036000-memory.dmp
memory/4268-147-0x0000000006650000-0x000000000666E000-memory.dmp
memory/4268-148-0x0000000006C10000-0x0000000006C42000-memory.dmp
memory/4268-149-0x0000000072430000-0x000000007247C000-memory.dmp
memory/4268-150-0x0000000006BF0000-0x0000000006C0E000-memory.dmp
memory/4268-141-0x0000000005740000-0x0000000005D68000-memory.dmp
memory/4268-152-0x0000000007950000-0x000000000796A000-memory.dmp
memory/4268-153-0x00000000079C0000-0x00000000079CA000-memory.dmp
memory/4268-154-0x0000000007BD0000-0x0000000007C66000-memory.dmp
memory/4268-155-0x0000000007B80000-0x0000000007B8E000-memory.dmp
memory/4268-156-0x0000000007C90000-0x0000000007CAA000-memory.dmp
memory/4268-157-0x0000000007C70000-0x0000000007C78000-memory.dmp