Analysis
- max time kernel
149s - max time network
149s - platform
windows10_x64 - resource
win10-en-20210920 - submitted
27/09/2021, 16:16
General
- Target Ningbo_Bank_Account_Details.exe
- Size 1.8MB
- Sample210927-tqtteahebl
- SHA256 f1e7971b530395c849ca55d1e02e24b43da73ea9ec3d1f20c2afd9f06f5fe1a9
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
webmail.mdist.us
-
Port
587
-
Username
-
Password
Jg#4321
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 IoCs
- Drops file in Drivers directory 1 IoCs
- Adds Run key to start application 2 TTPs 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 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Ningbo_Bank_Account_Details.exe"C:\Users\Admin\AppData\Local\Temp\Ningbo_Bank_Account_Details.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vwubLmCU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp13E7.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2392-124-0x0000000008A30000-0x0000000008AC2000-memory.dmp
memory/2392-117-0x0000000004DF0000-0x0000000004DF1000-memory.dmp
memory/2392-119-0x0000000004E90000-0x0000000004E91000-memory.dmp
memory/2392-120-0x0000000004D70000-0x0000000004D71000-memory.dmp
memory/2392-121-0x0000000005050000-0x0000000005051000-memory.dmp
memory/2392-122-0x0000000004D00000-0x0000000004D9C000-memory.dmp
memory/2392-118-0x0000000005390000-0x0000000005391000-memory.dmp
memory/2392-123-0x0000000000ED0000-0x0000000000EDE000-memory.dmp
memory/2392-125-0x0000000008AD0000-0x0000000008B3D000-memory.dmp
memory/2392-115-0x0000000000380000-0x0000000000381000-memory.dmp
memory/3096-128-0x0000000000400000-0x0000000000470000-memory.dmp
memory/3096-134-0x0000000004E80000-0x000000000537E000-memory.dmp
memory/3096-135-0x0000000004FC0000-0x0000000004FC1000-memory.dmp
memory/3096-136-0x0000000005BE0000-0x0000000005BE1000-memory.dmp