Analysis
- max time kernel
141s - max time network
103s - platform
windows10_x64 - resource
win10-en-20210920 - submitted
04/10/2021, 12:00
General
- Target PMA21-110.exe
- Size 674KB
- Sample211004-n6c8psgdam
- SHA256 5a82ef3afe4758cb4846122d6edc9cf726b6a520fbaff9452a32cce542c67dbe
Malware Config
Extracted
-
agenttesla
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Protocol
smtp
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Host
mail.medicare-equipment.com
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Port
587
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Username
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Password
AllTheBest777
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 IoCs
- 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 14 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\PMA21-110.exe"C:\Users\Admin\AppData\Local\Temp\PMA21-110.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\Local\Temp\PMA21-110.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\JvvjTCIELKh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp50FF.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\PMA21-110.exe"C:\Users\Admin\AppData\Local\Temp\PMA21-110.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\PMA21-110.exe"C:\Users\Admin\AppData\Local\Temp\PMA21-110.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/524-383-0x0000000005420000-0x0000000005421000-memory.dmp
memory/524-127-0x0000000000400000-0x000000000043C000-memory.dmp
memory/524-139-0x0000000004FC0000-0x00000000054BE000-memory.dmp
memory/2492-119-0x0000000005750000-0x0000000005751000-memory.dmp
memory/2492-121-0x0000000005980000-0x000000000599D000-memory.dmp
memory/2492-122-0x0000000005710000-0x0000000005C0E000-memory.dmp
memory/2492-123-0x0000000006600000-0x0000000006669000-memory.dmp
memory/2492-124-0x00000000064B0000-0x00000000064E9000-memory.dmp
memory/2492-120-0x0000000005AD0000-0x0000000005AD1000-memory.dmp
memory/2492-115-0x0000000000E70000-0x0000000000E71000-memory.dmp
memory/2492-118-0x00000000057B0000-0x00000000057B1000-memory.dmp
memory/2492-117-0x0000000005C10000-0x0000000005C11000-memory.dmp
memory/3964-138-0x0000000006F22000-0x0000000006F23000-memory.dmp
memory/3964-146-0x00000000085F0000-0x00000000085F1000-memory.dmp
memory/3964-136-0x0000000006F20000-0x0000000006F21000-memory.dmp
memory/3964-131-0x0000000006EC0000-0x0000000006EC1000-memory.dmp
memory/3964-140-0x0000000007BD0000-0x0000000007BD1000-memory.dmp
memory/3964-141-0x0000000007C70000-0x0000000007C71000-memory.dmp
memory/3964-142-0x0000000007E30000-0x0000000007E31000-memory.dmp
memory/3964-143-0x0000000008060000-0x0000000008061000-memory.dmp
memory/3964-144-0x0000000007EE0000-0x0000000007EE1000-memory.dmp
memory/3964-145-0x0000000008880000-0x0000000008881000-memory.dmp
memory/3964-135-0x0000000007560000-0x0000000007561000-memory.dmp
memory/3964-154-0x00000000093F0000-0x0000000009423000-memory.dmp
memory/3964-161-0x00000000093D0000-0x00000000093D1000-memory.dmp
memory/3964-166-0x0000000009770000-0x0000000009771000-memory.dmp
memory/3964-167-0x0000000009920000-0x0000000009921000-memory.dmp
memory/3964-236-0x000000007EAF0000-0x000000007EAF1000-memory.dmp
memory/3964-237-0x0000000006F23000-0x0000000006F24000-memory.dmp
memory/3964-362-0x00000000098B0000-0x00000000098B1000-memory.dmp
memory/3964-368-0x00000000098A0000-0x00000000098A1000-memory.dmp