Analysis
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max time kernel
137s -
max time network
140s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
28-01-2021 15:25
General
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Target
gvim.exe
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Size
3.6MB
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MD5
8e8f7ff797c292231959e4dd410a98da
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SHA1
5fba19ae9f76b445d96dbca71f53113492b09d49
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SHA256
ace9f321c9967b2ffe3bef9056c113b20040fe8831351082e186125aeea8ab0b
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SHA512
c1e510a6d5f57eaad3b744e20145c07241b1e857e1a1832a0878cd6beedf115a40c8bfd655896d800579110687d208a59416044fdbd2811102aac334720a3c27
Malware Config
Signatures
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Osiris
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Executes dropped EXE 1 IoCs
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Drops startup file 2 IoCs
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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Uses Tor communications 1 TTPs
Malware can proxy its traffic through Tor for more anonymity.
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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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Suspicious behavior: EnumeratesProcesses 1118 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 14 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\gvim.exe"C:\Users\Admin\AppData\Local\Temp\gvim.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\gvim.exe"C:\Users\Admin\AppData\Local\Temp\gvim.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\GetX64BTIT.exe"C:\Users\Admin\AppData\Local\Temp\GetX64BTIT.exe"3⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{3AD05575-8857-4850-9277-11B85BDB8E09}1⤵
- Drops startup file
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\GetX64BTIT.exeMD5
b4cd27f2b37665f51eb9fe685ec1d373
SHA17f08febf0fdb7fc9f8bf35a10fb11e7de431abe0
SHA25691f1023142b7babf6ff75dad984c2a35bde61dc9e61f45483f4b65008576d581
SHA512e025f65224d78f5fd0abebe281ac0d44a385b2641e367cf39eed6aefada20a112ac47f94d7febc4424f1db6a6947bac16ff83ef93a8d745b3cddfdbe64c49a1e
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C:\Users\Admin\AppData\Local\Temp\GetX64BTIT.exeMD5
b4cd27f2b37665f51eb9fe685ec1d373
SHA17f08febf0fdb7fc9f8bf35a10fb11e7de431abe0
SHA25691f1023142b7babf6ff75dad984c2a35bde61dc9e61f45483f4b65008576d581
SHA512e025f65224d78f5fd0abebe281ac0d44a385b2641e367cf39eed6aefada20a112ac47f94d7febc4424f1db6a6947bac16ff83ef93a8d745b3cddfdbe64c49a1e
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C:\Users\Admin\AppData\Local\Temp\x64btit.txtMD5
fc4747500995e881074f73823f62574a
SHA198228c70d4e935d615807437343e130606479556
SHA25619cab3c6e2105507f20edf2516ec11a2f6d21418bd138ab898282c1d765a9468
SHA51276bef01b67687ac7785e14020996f9c6c968b3e5be5007102f356ccf37203bc7c20bf87c509030011b7224996f1d30f41a63fdb7c8a5810ca1d2f5a69ba76e38
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memory/984-2-0x0000000002940000-0x00000000029BB000-memory.dmpFilesize
492KB
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memory/984-6-0x00000000041C0000-0x000000000434E000-memory.dmpFilesize
1.6MB
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memory/1020-10-0x0000000000000000-mapping.dmp
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memory/3960-3-0x0000000000000000-mapping.dmp
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memory/3960-4-0x0000000000400000-0x000000000045A000-memory.dmpFilesize
360KB
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memory/3960-7-0x00000000000C0000-0x00000000000C1000-memory.dmpFilesize
4KB
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memory/3960-9-0x00000000025B0000-0x0000000002659000-memory.dmpFilesize
676KB
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memory/3960-8-0x0000000000400000-0x000000000045A000-memory.dmpFilesize
360KB