Analysis
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max time kernel
39s -
max time network
41s -
platform
windows7_x64 -
resource
win7-20220715-en -
resource tags
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submitted
25-07-2022 04:43
General
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Target
9d5ff41c22bde90c318f4f3eb0b8d75d7582ca3c54ae1ea1ddc8666f1298c23c.exe
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Size
535KB
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MD5
9160dbb0f8cb800c517bfa988a1eaafb
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SHA1
a370130363f5a4ade5dee9ad1df75e69d7165ef4
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SHA256
9d5ff41c22bde90c318f4f3eb0b8d75d7582ca3c54ae1ea1ddc8666f1298c23c
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SHA512
0e2cc51df54b5389e779b23ffa48c97c39c31462c1dafb99f6769b4cb6e399f7bc1c49a31682b6ff957a6be019c02290925f140b62d9cb2d4c75725e1a56e26e
Malware Config
Signatures
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Vidar
Vidar is an infostealer based on Arkei stealer.
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suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
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suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt) M2
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt) M2
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suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (passwords.txt) M2
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (passwords.txt) M2
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suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
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suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
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Deletes itself 1 IoCs
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Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
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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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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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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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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
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Kills process with taskkill 1 IoCs
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Suspicious behavior: EnumeratesProcesses 4 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of WriteProcessMemory 8 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\9d5ff41c22bde90c318f4f3eb0b8d75d7582ca3c54ae1ea1ddc8666f1298c23c.exe"C:\Users\Admin\AppData\Local\Temp\9d5ff41c22bde90c318f4f3eb0b8d75d7582ca3c54ae1ea1ddc8666f1298c23c.exe"1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im 9d5ff41c22bde90c318f4f3eb0b8d75d7582ca3c54ae1ea1ddc8666f1298c23c.exe /f & erase C:\Users\Admin\AppData\Local\Temp\9d5ff41c22bde90c318f4f3eb0b8d75d7582ca3c54ae1ea1ddc8666f1298c23c.exe & exit2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /im 9d5ff41c22bde90c318f4f3eb0b8d75d7582ca3c54ae1ea1ddc8666f1298c23c.exe /f3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/576-55-0x0000000000000000-mapping.dmp
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memory/640-56-0x0000000000000000-mapping.dmp
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memory/1564-54-0x00000000763E1000-0x00000000763E3000-memory.dmpFilesize
8KB