egregor | 14529f9e8a7004dbb7c1a4518ea82f61183e0fbe41ff389addb48eb1e8673828 | Triage

Analysis

max time kernel
3s
max time network
10s
platform
windows7_x64
resource
win7v20201028
submitted
04-11-2020 21:23

Sharing

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General

Target

spr3.bat
Size

120B
MD5

0a37d2a3cabd448a356ebdc17db26faa
SHA1

3df10248594f751c1e541842f35148cb5680302d
SHA256

4dc80ea19819e537510fdedff44c7f33be5f57cd651b04358161407e214f72e8
SHA512

a57ebda35176c34809f0ac6fa866256ea551828da0e6a31eafce5438880610164d5f92dfc52f4592d640f2ec566fe1aec319cdcafe48cee9a82936028cf608de

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 10 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 764 wrote to memory of 1172	764	cmd.exe	rundll32.exe
PID 764 wrote to memory of 1172	764	cmd.exe	rundll32.exe
PID 764 wrote to memory of 1172	764	cmd.exe	rundll32.exe
PID 1172 wrote to memory of 2024	1172	rundll32.exe	rundll32.exe
PID 1172 wrote to memory of 2024	1172	rundll32.exe	rundll32.exe
PID 1172 wrote to memory of 2024	1172	rundll32.exe	rundll32.exe
PID 1172 wrote to memory of 2024	1172	rundll32.exe	rundll32.exe
PID 1172 wrote to memory of 2024	1172	rundll32.exe	rundll32.exe
PID 1172 wrote to memory of 2024	1172	rundll32.exe	rundll32.exe
PID 1172 wrote to memory of 2024	1172	rundll32.exe	rundll32.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\spr3.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:764

C:\Windows\system32\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\b.dll",DllRegisterServer --Password10Char --append="antani" --multiproc
2⤵
- Suspicious use of WriteProcessMemory
PID:1172

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\b.dll",DllRegisterServer --Password10Char --append="antani" --multiproc
3⤵
PID:2024

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1172-0-0x0000000000000000-mapping.dmp

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memory/2024-1-0x0000000000000000-mapping.dmp

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memory/2024-2-0x00000000006D0000-0x000000000070F000-memory.dmp

Filesize
252KB

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