egregor | dcf6d7b8ae5c8513a6dc5b2580641770f5376ef2754c1cd1d91f80a3b66e01f9 | Triage

Analysis

max time kernel
101s
max time network
102s
platform
windows7_x64
resource
win7v20201028
submitted
04-11-2020 20:44

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General

Target

spr3.bat
Size

104B
MD5

be24d1c626ab197263bd959d649a5f3c
SHA1

531babc643f30cbf124b8b851bc00aaed02d56f3
SHA256

c6f6c3193603de650e709bae9f31c3749859ba88fd71b678be264e2bb46efa10
SHA512

66c094d2ae497bc46eee18eff05bd2faf087ec21e6bd731328301b1d91828b58f86ca523b8ac78ebd57ee111b2cbfb3848e0bad4fa5f0a77c398dfbe4f4509f7

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 1072 wrote to memory of 1436	1072	cmd.exe	rundll32.exe
PID 1072 wrote to memory of 1436	1072	cmd.exe	rundll32.exe
PID 1072 wrote to memory of 1436	1072	cmd.exe	rundll32.exe
PID 1436 wrote to memory of 2028	1436	rundll32.exe	rundll32.exe
PID 1436 wrote to memory of 2028	1436	rundll32.exe	rundll32.exe
PID 1436 wrote to memory of 2028	1436	rundll32.exe	rundll32.exe
PID 1436 wrote to memory of 2028	1436	rundll32.exe	rundll32.exe
PID 1436 wrote to memory of 2028	1436	rundll32.exe	rundll32.exe
PID 1436 wrote to memory of 2028	1436	rundll32.exe	rundll32.exe
PID 1436 wrote to memory of 2028	1436	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:1072

C:\Windows\system32\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\sm.dll",DllRegisterServer --append="antani" --multiproc
2⤵
- Suspicious use of WriteProcessMemory
PID:1436

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\sm.dll",DllRegisterServer --append="antani" --multiproc
3⤵
PID:2028

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1436-0-0x0000000000000000-mapping.dmp

Download
memory/2028-1-0x0000000000000000-mapping.dmp

Download
memory/2028-2-0x0000000000370000-0x00000000003AF000-memory.dmp

Filesize
252KB

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