Analysis
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max time kernel
91s -
max time network
47s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 12:26
General
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Target
Order_4488577_list.doc.exe
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Size
505KB
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MD5
3089c7102435d9700d73ef949b43f634
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SHA1
5a18fc13f09fde131207b0c0ea723da477804cab
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SHA256
e2ee107b59612c9ca7bc1df9d460f3c7205503aaa92346bcab201cb7c153f25a
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SHA512
0e8f3cf8de7c91ed16552d978be0ab03265dbf1205f9706c53c7db938cf6e4645bc27f9620e053bf7d3b80e8d3dacf0e2291ac988c46e9ac1f3bc1917e57001c
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
premium57.web-hosting.com - Port:
587 - Username:
japan-dea@zoomexpress.online - Password:
Goodboy123??
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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CoreEntity .NET Packer 1 IoCs
A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.
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AgentTesla Payload 6 IoCs
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ReZer0 packer 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
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Suspicious use of SetThreadContext 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 3 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 13 IoCs
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outlook_office_path 1 IoCs
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outlook_win_path 1 IoCs
Processes
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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\tmp668.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Order_4488577_list.doc.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp668.tmpFilesize
1KB
MD52446cac4716cea3fbae3c9485729137e
SHA1b6d57ce2942092ac99bdf444ae37320ba1a44531
SHA256e3e53023acf932a8ca957ebf7d367572c0af0b6598b14bd4ca7f643bca14f1e0
SHA5123bd38c0791b65200f882446ffb62569a0adcfe62d65ac1447b01351a2b669392ab3d4d3a1398a076b15635b182a86a08c578065573478d6524d34221b0a08b4e
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memory/1488-55-0x0000000076C81000-0x0000000076C83000-memory.dmpFilesize
8KB
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memory/1488-56-0x0000000000530000-0x0000000000538000-memory.dmpFilesize
32KB
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memory/1488-57-0x0000000002380000-0x00000000023D8000-memory.dmpFilesize
352KB
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memory/1488-54-0x0000000000CF0000-0x0000000000D74000-memory.dmpFilesize
528KB
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memory/1972-60-0x0000000000400000-0x0000000000450000-memory.dmpFilesize
320KB
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memory/1972-61-0x0000000000400000-0x0000000000450000-memory.dmpFilesize
320KB
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memory/1972-63-0x0000000000400000-0x0000000000450000-memory.dmpFilesize
320KB
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memory/1972-64-0x0000000000400000-0x0000000000450000-memory.dmpFilesize
320KB
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memory/1972-65-0x0000000000400000-0x0000000000450000-memory.dmpFilesize
320KB
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memory/1972-66-0x000000000044B2DE-mapping.dmp
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memory/1972-68-0x0000000000400000-0x0000000000450000-memory.dmpFilesize
320KB
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memory/1972-70-0x0000000000400000-0x0000000000450000-memory.dmpFilesize
320KB
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memory/2012-58-0x0000000000000000-mapping.dmp