Analysis
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max time kernel
112s -
max time network
46s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 01:36
General
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Target
PO_EAS20.scr
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Size
811KB
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MD5
76fc894d97a27187c25f2044a41f7320
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SHA1
d0a55d34a29b4af20f73655f8742a150c65fea48
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SHA256
dc0ee2896b9e30407a4edba7bdb3d7660079e343bb9652793a2e97c52f25a660
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SHA512
32bdb9096bf4e2511d83819c0578bf4c57e46a4336c1ec86b107d6716d0b04acda81d3632a9424efa35e89d99eb90e475c6b6dcdb4e54ae5f9993ad6430d0bfb
Malware Config
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 1 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 data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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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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 2 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of WriteProcessMemory 4 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\PO_EAS20.scr"C:\Users\Admin\AppData\Local\Temp\PO_EAS20.scr" /S1⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RtiPqzJkPnwlYo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp32D.tmp"2⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp32D.tmpFilesize
1KB
MD50d2c9a6c6e73c109ea75e4bc95d50ecf
SHA137b501bc966e22a505240c19813e67f160a347f3
SHA256d0d0dac92b737eb929e8648bc2b009a4f6cf5bb3b38d769abde1986b810becde
SHA51287df315e9be3362a8a43b599ceaf6042417ceac535a52803509e6f736ad8040abbb3c6e2bf96fd49d95b4d3ae934dfa754ccf3e28fc4cce6810bfae7f0e9bbe6
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memory/1408-58-0x0000000000000000-mapping.dmp
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memory/1788-54-0x0000000000070000-0x0000000000140000-memory.dmpFilesize
832KB
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memory/1788-55-0x0000000075AE1000-0x0000000075AE3000-memory.dmpFilesize
8KB
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memory/1788-56-0x00000000006E0000-0x00000000006E8000-memory.dmpFilesize
32KB
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memory/1788-57-0x0000000000900000-0x0000000000954000-memory.dmpFilesize
336KB
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memory/1788-60-0x0000000005C80000-0x0000000005CCC000-memory.dmpFilesize
304KB