egregor | 260b414641d3cb4105b2728c88965bffad88f63460f0cab4bcb8bbb9a1c2f8ca | Triage

Analysis

max time kernel
5s
max time network
14s
platform
windows7_x64
resource
win7v20201028
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 10 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1004 wrote to memory of 1640	1004	cmd.exe	rundll32.exe
PID 1004 wrote to memory of 1640	1004	cmd.exe	rundll32.exe
PID 1004 wrote to memory of 1640	1004	cmd.exe	rundll32.exe
PID 1640 wrote to memory of 1840	1640	rundll32.exe	rundll32.exe
PID 1640 wrote to memory of 1840	1640	rundll32.exe	rundll32.exe
PID 1640 wrote to memory of 1840	1640	rundll32.exe	rundll32.exe
PID 1640 wrote to memory of 1840	1640	rundll32.exe	rundll32.exe
PID 1640 wrote to memory of 1840	1640	rundll32.exe	rundll32.exe
PID 1640 wrote to memory of 1840	1640	rundll32.exe	rundll32.exe
PID 1640 wrote to memory of 1840	1640	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:1004

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:1640

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\b.dll",DllRegisterServer --passegregor11 --append="antani" --multiproc
3⤵
PID:1840

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1640-0-0x0000000000000000-mapping.dmp

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memory/1840-1-0x0000000000000000-mapping.dmp

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memory/1840-2-0x00000000003C0000-0x00000000003FF000-memory.dmp

Filesize
252KB

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