Analysis
- max time kernel
137s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240611-en - resource tags
- submitted
12/06/2024, 01:45
General
- Target 8fd73ae7fb9da6bf5d793b56d1cd12a0f2cd342236cca599fb92ecdc1ea700da.exe
- Size 855KB
- Sample240612-b6eqbayark
- SHA256 8fd73ae7fb9da6bf5d793b56d1cd12a0f2cd342236cca599fb92ecdc1ea700da
Malware Config
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\8fd73ae7fb9da6bf5d793b56d1cd12a0f2cd342236cca599fb92ecdc1ea700da.exe"C:\Users\Admin\AppData\Local\Temp\8fd73ae7fb9da6bf5d793b56d1cd12a0f2cd342236cca599fb92ecdc1ea700da.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\8fd73ae7fb9da6bf5d793b56d1cd12a0f2cd342236cca599fb92ecdc1ea700da.exe"C:\Users\Admin\AppData\Local\Temp\8fd73ae7fb9da6bf5d793b56d1cd12a0f2cd342236cca599fb92ecdc1ea700da.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 --field-trial-handle=3960,i,8998666007764333392,14724298544432336038,262144 --variations-seed-version --mojo-platform-channel-handle=4452 /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
8fd73ae7fb9da6bf5d793b56d1cd12a0f2cd342236cca599fb92ecdc1ea700da.exe.log
memory/1372-4-0x0000000005A10000-0x0000000005A1A000-memory.dmp
memory/1372-1-0x0000000000F30000-0x000000000100C000-memory.dmp
memory/1372-3-0x0000000005A90000-0x0000000005B22000-memory.dmp
memory/1372-0-0x0000000074F6E000-0x0000000074F6F000-memory.dmp
memory/1372-5-0x0000000074F60000-0x0000000075710000-memory.dmp
memory/1372-6-0x0000000008790000-0x00000000087AA000-memory.dmp
memory/1372-7-0x0000000005F60000-0x0000000005F70000-memory.dmp
memory/1372-8-0x00000000087B0000-0x0000000008834000-memory.dmp
memory/1372-2-0x0000000005FA0000-0x0000000006544000-memory.dmp
memory/1372-13-0x0000000074F60000-0x0000000075710000-memory.dmp
memory/1372-9-0x000000000AF30000-0x000000000AFCC000-memory.dmp
memory/1832-10-0x0000000000400000-0x0000000000442000-memory.dmp
memory/1832-14-0x0000000074F60000-0x0000000075710000-memory.dmp
memory/1832-16-0x0000000074F60000-0x0000000075710000-memory.dmp
memory/1832-15-0x0000000005430000-0x0000000005496000-memory.dmp
memory/1832-17-0x00000000060E0000-0x0000000006130000-memory.dmp
memory/1832-18-0x0000000074F60000-0x0000000075710000-memory.dmp