Analysis
- max time kernel
122s - max time network
113s - platform
windows10_x64 - resource
win10v20210410 - submitted
07/06/2021, 05:10
General
- Target CAS No. 9004-65-3.scr
- Size 1.5MB
- Sample210607-ffbj7vv41s
- SHA256 92249587f4034051ca019922a388b659536fad1cbbba9f2bdfd872867741041d
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
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Host
mail.w2opt.com
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Port
587
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Username
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Password
wTwo@2018
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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\CAS No. 9004-65-3.scr"C:\Users\Admin\AppData\Local\Temp\CAS No. 9004-65-3.scr" /S1⤵
- 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\tLROYk" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD840.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\CAS No. 9004-65-3.scr"C:\Users\Admin\AppData\Local\Temp\CAS No. 9004-65-3.scr"2⤵
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C:\Users\Admin\AppData\Local\Temp\CAS No. 9004-65-3.scr"C:\Users\Admin\AppData\Local\Temp\CAS No. 9004-65-3.scr"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3732-136-0x0000000005EB0000-0x0000000005EB1000-memory.dmp
memory/3732-135-0x0000000005E10000-0x0000000005E11000-memory.dmp
memory/3732-133-0x00000000051A0000-0x00000000051A1000-memory.dmp
memory/3732-127-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3988-119-0x0000000005680000-0x0000000005681000-memory.dmp
memory/3988-124-0x0000000008800000-0x000000000883F000-memory.dmp
memory/3988-123-0x00000000062B0000-0x0000000006328000-memory.dmp
memory/3988-122-0x00000000059C0000-0x00000000059DE000-memory.dmp
memory/3988-121-0x0000000005640000-0x00000000056DC000-memory.dmp
memory/3988-120-0x0000000005960000-0x0000000005961000-memory.dmp
memory/3988-114-0x0000000000BA0000-0x0000000000BA1000-memory.dmp
memory/3988-118-0x0000000005780000-0x0000000005781000-memory.dmp
memory/3988-117-0x0000000005C80000-0x0000000005C81000-memory.dmp
memory/3988-116-0x00000000056E0000-0x00000000056E1000-memory.dmp