Analysis
- max time kernel
137s - max time network
114s - platform
windows10_x64 - resource
win10v20210410 - submitted
20/08/2021, 12:50
General
- Target PO No. SMC -201103-004.exe
- Size 1.0MB
- Sample210820-8f3tezzdna
- SHA256 c147939f30cd87fd5011cbe528c8e34fbdb94b4e478c1a80fb426b18327c1b7c
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.tccinfaes.com
-
Port
587
-
Username
-
Password
TccBps1427log
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
- 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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\PO No. SMC -201103-004.exe"C:\Users\Admin\AppData\Local\Temp\PO No. SMC -201103-004.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EPeVkRNGqy" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCEB0.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2132-135-0x0000000005AA0000-0x0000000005AA1000-memory.dmp
memory/2132-134-0x0000000005900000-0x0000000005901000-memory.dmp
memory/2132-133-0x0000000004C70000-0x0000000004C71000-memory.dmp
memory/2132-127-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3916-119-0x0000000005250000-0x0000000005251000-memory.dmp
memory/3916-123-0x0000000007930000-0x00000000079E3000-memory.dmp
memory/3916-124-0x0000000009FF0000-0x000000000A042000-memory.dmp
memory/3916-122-0x0000000005500000-0x0000000005511000-memory.dmp
memory/3916-121-0x0000000005360000-0x000000000585E000-memory.dmp
memory/3916-120-0x00000000054A0000-0x00000000054A1000-memory.dmp
memory/3916-114-0x0000000000940000-0x0000000000941000-memory.dmp
memory/3916-118-0x0000000005400000-0x0000000005401000-memory.dmp
memory/3916-117-0x0000000005860000-0x0000000005861000-memory.dmp
memory/3916-116-0x0000000005280000-0x0000000005281000-memory.dmp