Analysis
- max time kernel
143s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
13/06/2024, 01:03
General
- Target PO#55666355252367578-pdf.exe
- Size 854KB
- Sample240613-becfwasbjp
- SHA256 95434e14f7937ffe2702c3fd491f07957188cc1f09b5b26bf7161ece6a2e3744
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.groupmt.vn
-
Port
587
-
Username
-
Password
4j37SF2n8e
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.groupmt.vn
-
Port
587
-
Username
-
Password
4j37SF2n8e
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
- Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
- Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
- Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
- Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
- Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
- 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.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\PO#55666355252367578-pdf.exe"C:\Users\Admin\AppData\Local\Temp\PO#55666355252367578-pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\PO#55666355252367578-pdf.exe"C:\Users\Admin\AppData\Local\Temp\PO#55666355252367578-pdf.exe"2⤵
- 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 --mojo-platform-channel-handle=4472 --field-trial-handle=2656,i,16940681401824032220,151921362336696246,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
memory/412-10-0x0000000000400000-0x0000000000442000-memory.dmp
memory/412-18-0x0000000074D90000-0x0000000075540000-memory.dmp
memory/412-17-0x0000000006250000-0x00000000062A0000-memory.dmp
memory/412-15-0x0000000074D90000-0x0000000075540000-memory.dmp
memory/412-14-0x0000000005470000-0x00000000054D6000-memory.dmp
memory/412-12-0x0000000074D90000-0x0000000075540000-memory.dmp
memory/4664-8-0x00000000085B0000-0x0000000008632000-memory.dmp
memory/4664-7-0x0000000008230000-0x0000000008240000-memory.dmp
memory/4664-0-0x0000000074D9E000-0x0000000074D9F000-memory.dmp
memory/4664-9-0x000000000AD40000-0x000000000ADDC000-memory.dmp
memory/4664-6-0x0000000008260000-0x000000000827A000-memory.dmp
memory/4664-5-0x0000000005500000-0x000000000550A000-memory.dmp
memory/4664-13-0x0000000074D9E000-0x0000000074D9F000-memory.dmp
memory/4664-4-0x0000000074D90000-0x0000000075540000-memory.dmp
memory/4664-3-0x0000000005580000-0x0000000005612000-memory.dmp
memory/4664-16-0x0000000074D90000-0x0000000075540000-memory.dmp
memory/4664-2-0x0000000005A90000-0x0000000006034000-memory.dmp
memory/4664-1-0x0000000000A10000-0x0000000000AEC000-memory.dmp