Analysis
- max time kernel
135s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
10/03/2023, 12:20
General
- Target 905daa5105082c1366f014e026fbdee5.exe
- Size 288KB
- Sample230310-phr8dsde78
- SHA256 bf71bd90c11bb97f08391a42466582b08c5089cf47ea9075dc7e1a24d1b97016
Malware Config
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Executes dropped EXE 2 IoCs
- 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
- 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: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\905daa5105082c1366f014e026fbdee5.exe"C:\Users\Admin\AppData\Local\Temp\905daa5105082c1366f014e026fbdee5.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\vaauw.exe"C:\Users\Admin\AppData\Local\Temp\vaauw.exe" C:\Users\Admin\AppData\Local\Temp\zjmbyaofxem.yab2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\vaauw.exe"C:\Users\Admin\AppData\Local\Temp\vaauw.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
-
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
gaywsvbazpy.bi
vaauw.exe
vaauw.exe
vaauw.exe
zjmbyaofxem.yab
memory/1644-150-0x0000000005E10000-0x00000000063B4000-memory.dmp
memory/1644-153-0x0000000005850000-0x0000000005860000-memory.dmp
memory/1644-145-0x0000000000400000-0x0000000000441000-memory.dmp
memory/1644-147-0x0000000000400000-0x0000000000441000-memory.dmp
memory/1644-148-0x0000000005850000-0x0000000005860000-memory.dmp
memory/1644-142-0x0000000000400000-0x0000000000441000-memory.dmp
memory/1644-151-0x0000000005850000-0x0000000005860000-memory.dmp
memory/1644-149-0x0000000005850000-0x0000000005860000-memory.dmp
memory/1644-152-0x0000000005900000-0x0000000005966000-memory.dmp
memory/1644-144-0x0000000000400000-0x0000000000441000-memory.dmp
memory/1644-154-0x00000000066E0000-0x0000000006772000-memory.dmp
memory/1644-155-0x0000000006890000-0x000000000689A000-memory.dmp
memory/1644-156-0x0000000006A50000-0x0000000006AA0000-memory.dmp
memory/1644-157-0x0000000006CA0000-0x0000000006E62000-memory.dmp
memory/1644-158-0x0000000005850000-0x0000000005860000-memory.dmp
memory/1644-159-0x0000000005850000-0x0000000005860000-memory.dmp
memory/1644-160-0x0000000005850000-0x0000000005860000-memory.dmp
memory/1644-161-0x0000000005850000-0x0000000005860000-memory.dmp