Analysis
- max time kernel
145s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
08/06/2024, 04:33
General
- Target d7d85feb390da925a7f895859050d29e429c812f05f6b5d11546b0b372524fda.exe
- Size 766KB
- Sample240608-e6wklsha7t
- SHA256 d7d85feb390da925a7f895859050d29e429c812f05f6b5d11546b0b372524fda
Malware Config
Extracted
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
Password: )NYyffR0
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
Password: )NYyffR0
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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 2 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 2 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\d7d85feb390da925a7f895859050d29e429c812f05f6b5d11546b0b372524fda.exe"C:\Users\Admin\AppData\Local\Temp\d7d85feb390da925a7f895859050d29e429c812f05f6b5d11546b0b372524fda.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\d7d85feb390da925a7f895859050d29e429c812f05f6b5d11546b0b372524fda.exe"C:\Users\Admin\AppData\Local\Temp\d7d85feb390da925a7f895859050d29e429c812f05f6b5d11546b0b372524fda.exe"2⤵
- Adds Run key to start application
- 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 --mojo-platform-channel-handle=3376 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
memory/2776-11-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2776-19-0x0000000074DC0000-0x0000000075570000-memory.dmp
memory/2776-18-0x0000000006AD0000-0x0000000006B20000-memory.dmp
memory/2776-16-0x0000000074DC0000-0x0000000075570000-memory.dmp
memory/2776-15-0x0000000005320000-0x0000000005386000-memory.dmp
memory/2776-13-0x0000000074DC0000-0x0000000075570000-memory.dmp
memory/4436-4-0x0000000074DC0000-0x0000000075570000-memory.dmp
memory/4436-7-0x0000000005210000-0x000000000521E000-memory.dmp
memory/4436-8-0x0000000005440000-0x0000000005450000-memory.dmp
memory/4436-9-0x0000000007B30000-0x0000000007BB4000-memory.dmp
memory/4436-10-0x000000000A2E0000-0x000000000A37C000-memory.dmp
memory/4436-6-0x0000000005050000-0x0000000005066000-memory.dmp
memory/4436-5-0x0000000004DA0000-0x0000000004DAA000-memory.dmp
memory/4436-0-0x0000000074DCE000-0x0000000074DCF000-memory.dmp
memory/4436-14-0x0000000074DC0000-0x0000000075570000-memory.dmp
memory/4436-3-0x0000000004DD0000-0x0000000004E62000-memory.dmp
memory/4436-2-0x0000000005480000-0x0000000005A24000-memory.dmp
memory/4436-1-0x00000000002F0000-0x00000000003B4000-memory.dmp