Analysis
- max time kernel
135s - max time network
120s - platform
windows10_x64 - resource
win10-en-20210920 - submitted
23/09/2021, 04:35
General
- Target IT01879020517_xiyCu.xml.p7m.pdf.exe
- Size 804KB
- Sample210923-e7n7xsedg9
- SHA256 bdca1fe0e8d4f8138fa99475d2986e95cda843ff5536413bb5c1f16fae82fccb
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.rapidmail.ec
-
Port
587
-
Username
-
Password
icui4cu2@@
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 IoCs
- 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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\IT01879020517_xiyCu.xml.p7m.pdf.exe"C:\Users\Admin\AppData\Local\Temp\IT01879020517_xiyCu.xml.p7m.pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LbrzSrnPwNOxcy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3847.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\IT01879020517_xiyCu.xml.p7m.pdf.exe"C:\Users\Admin\AppData\Local\Temp\IT01879020517_xiyCu.xml.p7m.pdf.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/500-136-0x0000000006530000-0x0000000006531000-memory.dmp
memory/500-135-0x0000000005C90000-0x0000000005C91000-memory.dmp
memory/500-134-0x00000000057D0000-0x0000000005CCE000-memory.dmp
memory/500-128-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3592-120-0x0000000006030000-0x0000000006031000-memory.dmp
memory/3592-123-0x0000000005AE0000-0x0000000005AFD000-memory.dmp
memory/3592-124-0x0000000008330000-0x0000000008331000-memory.dmp
memory/3592-125-0x0000000008580000-0x00000000085F6000-memory.dmp
memory/3592-126-0x0000000008610000-0x0000000008658000-memory.dmp
memory/3592-122-0x0000000005A00000-0x0000000005A01000-memory.dmp
memory/3592-121-0x00000000055F0000-0x00000000055F1000-memory.dmp
memory/3592-115-0x0000000000D30000-0x0000000000D31000-memory.dmp
memory/3592-119-0x0000000005820000-0x0000000005821000-memory.dmp
memory/3592-118-0x00000000056D0000-0x00000000056D1000-memory.dmp
memory/3592-117-0x0000000005B30000-0x0000000005B31000-memory.dmp