egregor | 260b414641d3cb4105b2728c88965bffad88f63460f0cab4bcb8bbb9a1c2f8ca | Triage

Analysis

max time kernel
15s
max time network
113s
platform
windows10_x64
resource
win10v20201028
submitted
04-11-2020 18:50

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General

Target

spr3.bat
Size

119B
MD5

6cd1238de28090a7168d937086870ca5
SHA1

b2bcf00d05eec6d36157c038a1098264e810a2bd
SHA256

6a97dbe575aeac15b334c4e1130e63d6292de0f96403e83d430ce451157d0460
SHA512

b7ac5e83dae70c0cb5a34b711c05444c1d219f28b187c2e55d2c48b767746206daa01fb8f71e37e469df9cb038090f97c9a3d8736082f35d05e086adf38b1435

Score

10^/10

egregor ransomware

Malware Config

Signatures

Egregor Ransomware
Variant of the Sekhmet ransomware first seen in September 2020.
ransomware egregor

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2484 wrote to memory of 1884	2484	cmd.exe	rundll32.exe
PID 2484 wrote to memory of 1884	2484	cmd.exe	rundll32.exe
PID 1884 wrote to memory of 2732	1884	rundll32.exe	rundll32.exe
PID 1884 wrote to memory of 2732	1884	rundll32.exe	rundll32.exe
PID 1884 wrote to memory of 2732	1884	rundll32.exe	rundll32.exe

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\spr3.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2484

C:\Windows\system32\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\b.dll",DllRegisterServer --passegregor11 --append="antani" --multiproc
2⤵
- Suspicious use of WriteProcessMemory
PID:1884

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\b.dll",DllRegisterServer --passegregor11 --append="antani" --multiproc
3⤵
PID:2732

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1884-0-0x0000000000000000-mapping.dmp

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memory/2732-1-0x0000000000000000-mapping.dmp

Download
memory/2732-2-0x0000000000DF0000-0x0000000000E2F000-memory.dmp

Filesize
252KB

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