Analysis
- max time kernel
165s - max time network
119s - platform
windows10_x64 - resource
win10-en-20211208 - submitted
31/01/2022, 06:49
General
- Target PO GNH309.pdf.exe
- Size 660KB
- Sample220131-hlc5baghf9
- SHA256 45c0b5eda3f5bc38f1bdac63a60ded33142355d316e488a19d9d6083dc0306ca
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.yandex.com
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Port
587
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Username
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Password
marcellinus
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 7 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\PO GNH309.pdf.exe"C:\Users\Admin\AppData\Local\Temp\PO GNH309.pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DDRljXeWNWDzf.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\DDRljXeWNWDzf" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAF52.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⤵
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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
Loading Replay Monitor...
Downloads
memory/1124-130-0x00000000048E0000-0x00000000048E1000-memory.dmp
memory/1124-151-0x000000007F060000-0x000000007F061000-memory.dmp
memory/1124-160-0x0000000009660000-0x00000000096F4000-memory.dmp
memory/1124-140-0x0000000007E40000-0x0000000007E8B000-memory.dmp
memory/1124-158-0x0000000009470000-0x0000000009515000-memory.dmp
memory/1124-153-0x0000000008F80000-0x0000000008F9E000-memory.dmp
memory/1124-152-0x0000000009340000-0x0000000009373000-memory.dmp
memory/1124-358-0x0000000000A30000-0x0000000000A38000-memory.dmp
memory/1124-353-0x0000000000A40000-0x0000000000A5A000-memory.dmp
memory/1124-129-0x0000000004720000-0x0000000004756000-memory.dmp
memory/1124-159-0x00000000048E3000-0x00000000048E4000-memory.dmp
memory/1124-132-0x00000000072E0000-0x0000000007908000-memory.dmp
memory/1124-133-0x00000000048E2000-0x00000000048E3000-memory.dmp
memory/1124-142-0x00000000081F0000-0x0000000008266000-memory.dmp
memory/1124-135-0x00000000071D0000-0x00000000071F2000-memory.dmp
memory/1124-136-0x0000000007270000-0x00000000072D6000-memory.dmp
memory/1124-137-0x0000000007980000-0x00000000079E6000-memory.dmp
memory/1124-138-0x0000000007AF0000-0x0000000007E40000-memory.dmp
memory/1124-139-0x0000000007930000-0x000000000794C000-memory.dmp
memory/2472-141-0x0000000005340000-0x0000000005358000-memory.dmp
memory/2472-134-0x0000000005190000-0x000000000568E000-memory.dmp
memory/2472-131-0x0000000000400000-0x000000000043C000-memory.dmp
memory/2704-118-0x0000000000420000-0x00000000004CC000-memory.dmp
memory/2704-125-0x00000000099F0000-0x0000000009A60000-memory.dmp
memory/2704-124-0x0000000000C80000-0x0000000000D1C000-memory.dmp
memory/2704-123-0x0000000007C50000-0x0000000007C64000-memory.dmp
memory/2704-122-0x0000000007470000-0x000000000747A000-memory.dmp
memory/2704-121-0x0000000007210000-0x000000000770E000-memory.dmp
memory/2704-120-0x0000000007310000-0x00000000073A2000-memory.dmp
memory/2704-119-0x0000000007710000-0x0000000007C0E000-memory.dmp