Analysis
- max time kernel
120s - max time network
123s - platform
windows7_x64 - resource
win7v20201028 - submitted
09/11/2020, 20:09
General
- Target Order_4488577_list.doc.exe
- Size 505KB
- Sample201109-nyyref2cjs
- SHA256 e2ee107b59612c9ca7bc1df9d460f3c7205503aaa92346bcab201cb7c153f25a
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
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Host
premium57.web-hosting.com
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Port
587
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Username
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Password
Goodboy123??
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- CoreEntity .NET Packer 1 IoCs
A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.
- AgentTesla Payload 4 IoCs
- rezer0 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
- 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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Order_4488577_list.doc.exe"C:\Users\Admin\AppData\Local\Temp\Order_4488577_list.doc.exe"1⤵
- 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\PmSXUseCoPGm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2CBB.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\Order_4488577_list.doc.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\Order_4488577_list.doc.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/240-0-0x0000000074120000-0x000000007480E000-memory.dmp
memory/240-1-0x0000000000160000-0x0000000000161000-memory.dmp
memory/240-3-0x00000000006E0000-0x00000000006E2000-memory.dmp
memory/240-4-0x0000000004480000-0x00000000044D2000-memory.dmp
memory/1104-7-0x0000000000400000-0x0000000000450000-memory.dmp
memory/1104-9-0x0000000000400000-0x0000000000450000-memory.dmp
memory/1104-10-0x0000000000400000-0x0000000000450000-memory.dmp
memory/1104-11-0x0000000074120000-0x000000007480E000-memory.dmp