zhen | 1a6c3a98bd90f34eca1efa419a9c43a4ecde44c8ec818757b5a2d15e08658133

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
12-05-2024 00:03

Target

373c797b11aea9e1d79057983c9e02b0_JaffaCakes118.exe
Size

7.1MB
MD5

373c797b11aea9e1d79057983c9e02b0
SHA1

9b2a3c7653dbd59c0998e8894e3a71370637625f
SHA256

1a6c3a98bd90f34eca1efa419a9c43a4ecde44c8ec818757b5a2d15e08658133
SHA512

e23529b47d1b9c073e0f53418f5b8451ecb03c82f9e60d0ffb9e6581d5a6f4c20c8639d79437fd488806421f23c76cfe0343ebc14f4eaa7fcefd4f6290235d64
SSDEEP

98304:T+u4A8fZvfbiEYacrRyyVyGHAeBSut+aFNnLlPLeqNZ8hY/LKbxab:TfavVYaolX+aFFLlPKQ8hY/

Score

10^/10

zhen ransomware

Zhen Executable 1 IoCs

resource	yara_rule
behavioral1/memory/2144-0-0x0000000000400000-0x000000000154B000-memory.dmp	family_zhen

Zhen Ransomware
First seen in September 2020. Drops ransomnote as .ini file.
ransomware zhen

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1912	2144	WerFault.exe	27

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2144 wrote to memory of 1912	2144	373c797b11aea9e1d79057983c9e02b0_JaffaCakes118.exe	28
PID 2144 wrote to memory of 1912	2144	373c797b11aea9e1d79057983c9e02b0_JaffaCakes118.exe	28
PID 2144 wrote to memory of 1912	2144	373c797b11aea9e1d79057983c9e02b0_JaffaCakes118.exe	28
PID 2144 wrote to memory of 1912	2144	373c797b11aea9e1d79057983c9e02b0_JaffaCakes118.exe	28

C:\Users\Admin\AppData\Local\Temp\373c797b11aea9e1d79057983c9e02b0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\373c797b11aea9e1d79057983c9e02b0_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2144
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2144 -s 36
  2⤵
  - Program crash
  PID:1912

memory/2144-0-0x0000000000400000-0x000000000154B000-memory.dmp

Filesize
17.3MB

Download
memory/2144-1-0x0000000000400000-0x000000000154B000-memory.dmp

Filesize
17.3MB

Download