Analysis
- max time kernel
146s - max time network
148s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/11/2020, 20:20
General
- Target payment slip.exe
- Size 903KB
- Sample201109-zfcep78bm2
- SHA256 9e4a0e9ca5fc3d99fa1910cd19bd8db39c79ba01320341e5c9ce30ecff9ecdd3
Malware Config
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- CoreEntity .NET Packer 1 IoCs
A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.
- AgentTesla Payload 1 IoCs
- rezer0 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
- 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.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\payment slip.exe"C:\Users\Admin\AppData\Local\Temp\payment slip.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dlWaGpL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9437.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile2⤵
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/984-4-0x0000000007B20000-0x0000000007B21000-memory.dmp
memory/984-3-0x0000000007F80000-0x0000000007F81000-memory.dmp
memory/984-0-0x0000000073840000-0x0000000073F2E000-memory.dmp
memory/984-5-0x0000000007AB0000-0x0000000007AB1000-memory.dmp
memory/984-6-0x0000000007EE0000-0x0000000007EE2000-memory.dmp
memory/984-7-0x000000000A530000-0x000000000A583000-memory.dmp
memory/984-8-0x000000000A640000-0x000000000A641000-memory.dmp
memory/984-1-0x0000000000CC0000-0x0000000000CC1000-memory.dmp
memory/984-11-0x000000000ADA0000-0x000000000ADEC000-memory.dmp
memory/984-12-0x000000000AF00000-0x000000000AF01000-memory.dmp
memory/984-13-0x000000000AFB0000-0x000000000AFB1000-memory.dmp