Analysis
- max time kernel
137s - max time network
26s - platform
windows7_x64 - resource
win7-en-20210920 - submitted
30/09/2021, 08:24
General
- Target SHIPPING ADVICE.exe
- Size 690KB
- Sample210930-kap1vahaa4
- SHA256 20f250ce18c73f3aecba1a2de30602b2d0bf6d138f447bc673ae50dd870acf03
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.bsia.co.in
-
Port
587
-
Username
-
Password
21mbsia@)@!Y
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 IoCs
- Looks for VirtualBox Guest Additions in registry 2 TTPs
- Looks for VMWare Tools registry key 2 TTPs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- 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.
- Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
- 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: EnumeratesProcesses 5 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SHIPPING ADVICE.exe"C:\Users\Admin\AppData\Local\Temp\SHIPPING ADVICE.exe"1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\SHIPPING ADVICE.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\SHIPPING ADVICE.exe"C:\Users\Admin\AppData\Local\Temp\SHIPPING ADVICE.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/612-55-0x0000000004940000-0x0000000004941000-memory.dmp
memory/612-56-0x0000000000630000-0x0000000000643000-memory.dmp
memory/612-57-0x00000000052C0000-0x000000000532B000-memory.dmp
memory/612-58-0x0000000000680000-0x0000000000682000-memory.dmp
memory/612-59-0x0000000002280000-0x00000000022C5000-memory.dmp
memory/612-53-0x0000000000910000-0x0000000000911000-memory.dmp
memory/1032-66-0x00000000023B0000-0x00000000023B1000-memory.dmp
memory/1032-61-0x0000000075651000-0x0000000075653000-memory.dmp
memory/1032-69-0x00000000023B2000-0x00000000023B4000-memory.dmp
memory/1032-68-0x00000000023B1000-0x00000000023B2000-memory.dmp
memory/1504-62-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1504-67-0x0000000000680000-0x0000000000681000-memory.dmp
memory/1504-64-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1504-70-0x0000000000681000-0x0000000000682000-memory.dmp