egregor | 28f3f5a3ea270d9b896fe38b9df79a6ca430f5edab0423b3d834cf8d586f13e6 | Triage

Analysis

max time kernel
33s
max time network
125s
platform
windows10_x64
resource
win10v20210408
submitted
26-07-2021 12:40

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General

Target

28f3f5a3ea270d9b896fe38b9df79a6ca430f5edab0423b3d834cf8d586f13e6.sample.dll
Size

789KB
MD5

43445fbe21cf3512724646a284d3e5d7
SHA1

07d4bcb5b969a01fb21dc28e5cb1b7ceb05f2912
SHA256

28f3f5a3ea270d9b896fe38b9df79a6ca430f5edab0423b3d834cf8d586f13e6
SHA512

2c418c36c9f7699557f0b82f5469fab312bb1a393d0ec427f0502c65d23b9166f31258426c86d4c67da95580acbd48b935100571c40ca67786b0cae3423e6b7f

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 3 IoCs

Processes:

regsvr32.exe

description	pid	process	target process
PID 1000 wrote to memory of 3088	1000	regsvr32.exe	regsvr32.exe
PID 1000 wrote to memory of 3088	1000	regsvr32.exe	regsvr32.exe
PID 1000 wrote to memory of 3088	1000	regsvr32.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\28f3f5a3ea270d9b896fe38b9df79a6ca430f5edab0423b3d834cf8d586f13e6.sample.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1000

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\28f3f5a3ea270d9b896fe38b9df79a6ca430f5edab0423b3d834cf8d586f13e6.sample.dll
2⤵
PID:3088

MITRE ATT&CK Matrix

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Downloads

memory/3088-114-0x0000000000000000-mapping.dmp

Download
memory/3088-115-0x0000000000F00000-0x0000000000F3F000-memory.dmp

Filesize
252KB

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