Analysis
- max time kernel
159s - max time network
146s - platform
windows10_x64 - resource
win10-en-20211208 - submitted
31/01/2022, 04:30
General
- Target DHL commercial invoice.exe
- Size 819KB
- Sample220131-e4vkjaehgr
- SHA256 3cd5be20fc52a85f70dae0f6ecb7a63e343a8eb1625ea53be792b497e5452251
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.yandex.com
-
Port
587
-
Username
-
Password
graceofgod@amen
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 1 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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\DHL commercial invoice.exe"C:\Users\Admin\AppData\Local\Temp\DHL commercial invoice.exe"1⤵
- Suspicious use of SetThreadContext
- 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\Roaming\ChrvNSB.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ChrvNSB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9FD6.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
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3180-140-0x0000000005770000-0x0000000005788000-memory.dmp
memory/3180-136-0x0000000005690000-0x0000000005691000-memory.dmp
memory/3180-130-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3600-124-0x000000000A2E0000-0x000000000A374000-memory.dmp
memory/3600-119-0x00000000079D0000-0x0000000007A62000-memory.dmp
memory/3600-123-0x000000000A0A0000-0x000000000A13C000-memory.dmp
memory/3600-117-0x0000000000BC0000-0x0000000000C94000-memory.dmp
memory/3600-118-0x0000000007E30000-0x000000000832E000-memory.dmp
memory/3600-121-0x0000000007930000-0x0000000007E2E000-memory.dmp
memory/3600-122-0x0000000007C00000-0x0000000007C14000-memory.dmp
memory/3600-120-0x00000000079A0000-0x00000000079AA000-memory.dmp
memory/4376-139-0x0000000008080000-0x00000000080CB000-memory.dmp
memory/4376-141-0x0000000008360000-0x00000000083D6000-memory.dmp
memory/4376-133-0x0000000007100000-0x0000000007166000-memory.dmp
memory/4376-127-0x0000000006C70000-0x0000000006C71000-memory.dmp
memory/4376-135-0x0000000006C72000-0x0000000006C73000-memory.dmp
memory/4376-129-0x00000000047F0000-0x0000000004826000-memory.dmp
memory/4376-137-0x0000000007B30000-0x0000000007E80000-memory.dmp
memory/4376-138-0x0000000007290000-0x00000000072AC000-memory.dmp
memory/4376-132-0x0000000007060000-0x0000000007082000-memory.dmp
memory/4376-131-0x00000000072B0000-0x00000000078D8000-memory.dmp
memory/4376-134-0x00000000078E0000-0x0000000007946000-memory.dmp
memory/4376-150-0x00000000091C0000-0x00000000091F3000-memory.dmp
memory/4376-151-0x00000000091A0000-0x00000000091BE000-memory.dmp
memory/4376-156-0x00000000094F0000-0x0000000009595000-memory.dmp
memory/4376-157-0x000000007F2D0000-0x000000007F2D1000-memory.dmp
memory/4376-158-0x0000000006C73000-0x0000000006C74000-memory.dmp
memory/4376-159-0x00000000096D0000-0x0000000009764000-memory.dmp
memory/4376-352-0x0000000009680000-0x000000000969A000-memory.dmp
memory/4376-357-0x0000000009670000-0x0000000009678000-memory.dmp