Analysis
- max time kernel
127s - max time network
127s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
07/06/2024, 02:02
General
- Target 90b112bdd91653ba38fbc373ed28c7bf9467f67f64d24f1aca0dd2a4829f245d.exe
- Size 75KB
- Sample240607-cf4r7agh74
- SHA256 90b112bdd91653ba38fbc373ed28c7bf9467f67f64d24f1aca0dd2a4829f245d
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.100demoras.pt
-
Port
587
-
Username
-
Password
uJ}Y+wl}5B6K
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.100demoras.pt
-
Port
587
-
Username
-
Password
uJ}Y+wl}5B6K
-
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 binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 1 IoCs
- Detects executables packed with SmartAssembly 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.
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\90b112bdd91653ba38fbc373ed28c7bf9467f67f64d24f1aca0dd2a4829f245d.exe"C:\Users\Admin\AppData\Local\Temp\90b112bdd91653ba38fbc373ed28c7bf9467f67f64d24f1aca0dd2a4829f245d.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\90b112bdd91653ba38fbc373ed28c7bf9467f67f64d24f1aca0dd2a4829f245d.exe"C:\Users\Admin\AppData\Local\Temp\90b112bdd91653ba38fbc373ed28c7bf9467f67f64d24f1aca0dd2a4829f245d.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
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 --field-trial-handle=4436,i,7012731823941922179,12386606396608877869,262144 --variations-seed-version --mojo-platform-channel-handle=4348 /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
90b112bdd91653ba38fbc373ed28c7bf9467f67f64d24f1aca0dd2a4829f245d.exe.log
memory/3104-0-0x000000007535E000-0x000000007535F000-memory.dmp
memory/3104-1-0x0000000000860000-0x000000000087A000-memory.dmp
memory/3104-2-0x0000000075350000-0x0000000075B00000-memory.dmp
memory/3104-3-0x0000000007840000-0x0000000007A72000-memory.dmp
memory/3104-4-0x0000000008020000-0x00000000085C4000-memory.dmp
memory/3104-5-0x0000000007B70000-0x0000000007C02000-memory.dmp
memory/3104-9-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-29-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-45-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-69-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-67-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-65-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-63-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-55-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-53-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-51-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-49-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-47-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-61-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-59-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-57-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-43-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-41-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-39-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-37-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-35-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-33-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-31-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-27-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-25-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-23-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-15-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-13-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-21-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-19-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-11-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-17-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-7-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-6-0x0000000007840000-0x0000000007A6B000-memory.dmp
memory/3104-4893-0x0000000075350000-0x0000000075B00000-memory.dmp
memory/3104-4895-0x0000000005B10000-0x0000000005B5C000-memory.dmp
memory/3104-4894-0x0000000005BF0000-0x0000000005C5E000-memory.dmp
memory/3104-4896-0x0000000005CA0000-0x0000000005CF4000-memory.dmp
memory/3104-4892-0x000000007535E000-0x000000007535F000-memory.dmp
memory/3104-4902-0x0000000075350000-0x0000000075B00000-memory.dmp
memory/5564-4904-0x0000000075350000-0x0000000075B00000-memory.dmp
memory/5564-4905-0x0000000075350000-0x0000000075B00000-memory.dmp
memory/5564-4903-0x0000000004950000-0x00000000049B6000-memory.dmp
memory/5564-4901-0x0000000000430000-0x0000000000474000-memory.dmp
memory/5564-4907-0x00000000060E0000-0x000000000617C000-memory.dmp
memory/5564-4906-0x0000000005FF0000-0x0000000006040000-memory.dmp
memory/5564-4908-0x0000000006520000-0x000000000652A000-memory.dmp
memory/5564-4909-0x0000000075350000-0x0000000075B00000-memory.dmp