Analysis
- max time kernel
142s - max time network
123s - platform
windows10-2004_x64 - resource
win10v2004-20230221-en - resource tags
- submitted
21/02/2023, 14:03
General
- Target TT Telex Balance Payment Copy 230223 PDF.exe
- Size 291KB
- Sample230221-rcnzwsfa35
- SHA256 96c1f2e81dd6ac90324fe3eebbbd592670b5769adf64c8a73fb345d1749d4b02
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.icecleancare.com
-
Port
587
-
Username
-
Password
password@2020@
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
- 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.
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 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\TT Telex Balance Payment Copy 230223 PDF.exe"C:\Users\Admin\AppData\Local\Temp\TT Telex Balance Payment Copy 230223 PDF.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\uxdse.exe"C:\Users\Admin\AppData\Local\Temp\uxdse.exe" C:\Users\Admin\AppData\Local\Temp\dvgorhps.ut2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\uxdse.exe"C:\Users\Admin\AppData\Local\Temp\uxdse.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
dvgorhps.ut
empud.n
uxdse.exe
uxdse.exe
uxdse.exe
memory/1580-140-0x00000000004F0000-0x00000000004F2000-memory.dmp
memory/5056-150-0x0000000004A10000-0x0000000004A20000-memory.dmp
memory/5056-153-0x0000000004A10000-0x0000000004A20000-memory.dmp
memory/5056-145-0x0000000000400000-0x0000000000441000-memory.dmp
memory/5056-147-0x0000000004A20000-0x0000000004FC4000-memory.dmp
memory/5056-148-0x0000000000400000-0x0000000000441000-memory.dmp
memory/5056-149-0x0000000004A10000-0x0000000004A20000-memory.dmp
memory/5056-142-0x0000000000400000-0x0000000000441000-memory.dmp
memory/5056-151-0x0000000004A10000-0x0000000004A20000-memory.dmp
memory/5056-152-0x0000000004FD0000-0x0000000005036000-memory.dmp
memory/5056-144-0x0000000000400000-0x0000000000441000-memory.dmp
memory/5056-154-0x0000000006080000-0x0000000006112000-memory.dmp
memory/5056-155-0x0000000006140000-0x000000000614A000-memory.dmp
memory/5056-156-0x00000000062A0000-0x00000000062F0000-memory.dmp
memory/5056-157-0x0000000006320000-0x00000000064E2000-memory.dmp
memory/5056-164-0x00000000064F0000-0x000000000658C000-memory.dmp
memory/5056-166-0x0000000004A10000-0x0000000004A20000-memory.dmp
memory/5056-167-0x0000000004A10000-0x0000000004A20000-memory.dmp
memory/5056-168-0x0000000004A10000-0x0000000004A20000-memory.dmp
memory/5056-169-0x0000000004A10000-0x0000000004A20000-memory.dmp