Analysis
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max time kernel
88s -
max time network
48s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 01:52
General
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Target
RFQ12EAS.scr
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Size
844KB
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MD5
781182974459dd7e9b6ac48c89596f03
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SHA1
360f5752a562195b4c76c41d31855399477b4590
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SHA256
1d1f1118f0abad06563b370709b721291cc6b0a681486d7432738a8e2ddd02b5
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SHA512
7b15345eb1c50f5d246d4c2b1e748fc5086af2505385cfafa2970ea14fc785c2dae354227a9907d557753e678a8cba892d2e014aa549cf71a189b78e32ba7d1b
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\RFQ12EAS.scr"C:\Users\Admin\AppData\Local\Temp\RFQ12EAS.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\ffJsfgOHYD" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFD53.tmp"2⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmpFD53.tmpFilesize
1KB
MD51d9796c66fbfd764219b0a8b9144577e
SHA1854f6bd9e2039767983bb4234e78808f8de2acca
SHA2561e5cf3cc1804328d588e5752a73c6ad866d42e6620cea59f5db4538d33ad1b44
SHA5124ed20f2040b63b6fd211461064f4c166bd4a3b9b39715597b138fd82fbc9e745504f4f996a82d7f6718d04e979e1abdf857a03e5196e6b8d64e7d8390f9653a5
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memory/824-54-0x0000000000050000-0x000000000012C000-memory.dmpFilesize
880KB
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memory/824-55-0x0000000000720000-0x000000000077E000-memory.dmpFilesize
376KB
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memory/824-56-0x00000000762C1000-0x00000000762C3000-memory.dmpFilesize
8KB
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memory/824-57-0x0000000000310000-0x0000000000318000-memory.dmpFilesize
32KB
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memory/824-58-0x0000000004AA0000-0x0000000004AF4000-memory.dmpFilesize
336KB
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memory/824-61-0x00000000061F0000-0x000000000623C000-memory.dmpFilesize
304KB
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memory/1712-59-0x0000000000000000-mapping.dmp