Analysis
- max time kernel
90s - max time network
144s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/11/2020, 19:41
General
- Target PAYMENT 1567_0001.pif.exe
- Size 487KB
- Sample201109-25t87mtma6
- SHA256 8eeca9884be4d017c4c5cf62fd5b080efd5cf3e9c85d70c518ae31d796713110
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.privateemail.com
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Port
587
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Username
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Password
Protected@123
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 2 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.
- Suspicious use of SetThreadContext 1 IoCs
- 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 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\PAYMENT 1567_0001.pif.exe"C:\Users\Admin\AppData\Local\Temp\PAYMENT 1567_0001.pif.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kvVvcFR" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4F.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\PAYMENT 1567_0001.pif.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/1156-5-0x0000000005010000-0x0000000005011000-memory.dmp
memory/1156-1-0x0000000000760000-0x0000000000761000-memory.dmp
memory/1156-0-0x0000000073CB0000-0x000000007439E000-memory.dmp
memory/1156-6-0x0000000005190000-0x0000000005193000-memory.dmp
memory/1156-7-0x00000000089C0000-0x0000000008A13000-memory.dmp
memory/1156-8-0x0000000008AC0000-0x0000000008AC1000-memory.dmp
memory/1156-3-0x00000000054C0000-0x00000000054C1000-memory.dmp
memory/1156-4-0x0000000005060000-0x0000000005061000-memory.dmp
memory/2472-11-0x0000000000400000-0x0000000000452000-memory.dmp
memory/2472-13-0x0000000073CB0000-0x000000007439E000-memory.dmp
memory/2472-18-0x00000000055A0000-0x00000000055A1000-memory.dmp
memory/2472-19-0x00000000060F0000-0x00000000060F1000-memory.dmp