72c8a458204f843508317500361dd1faebe14813f728d203dcf3124698b66e18

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
01/06/2024, 03:47

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General

Target

2024-06-01_831c2c714e2639a5383484b9cb33181e_cryptolocker.exe
Size

36KB
MD5

831c2c714e2639a5383484b9cb33181e
SHA1

320101446205754a04741b383f56502dd5745830
SHA256

72c8a458204f843508317500361dd1faebe14813f728d203dcf3124698b66e18
SHA512

c7c0bb185b841fdefd4876b8c707b31de3dad5d5ce22aefdc52c85ea80a286dabc7800ace3bc0ffc17750a02e75dbc56ba043bac7cd7290bd22c0f9dc29e1924
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B0qG1H/:btB9g/WItCSsAGjX7r3BTa/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012346-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2148	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
112	2024-06-01_831c2c714e2639a5383484b9cb33181e_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
112	2024-06-01_831c2c714e2639a5383484b9cb33181e_cryptolocker.exe
2148	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 112 wrote to memory of 2148	112	2024-06-01_831c2c714e2639a5383484b9cb33181e_cryptolocker.exe	28
PID 112 wrote to memory of 2148	112	2024-06-01_831c2c714e2639a5383484b9cb33181e_cryptolocker.exe	28
PID 112 wrote to memory of 2148	112	2024-06-01_831c2c714e2639a5383484b9cb33181e_cryptolocker.exe	28
PID 112 wrote to memory of 2148	112	2024-06-01_831c2c714e2639a5383484b9cb33181e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-01_831c2c714e2639a5383484b9cb33181e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-01_831c2c714e2639a5383484b9cb33181e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:112
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2148

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\gewos.exe

Filesize
37KB

MD5
a4c1953d4a90ffb9c8bec95c1589c67d

SHA1
4a99b336aa05c80ad8646b8cbeac30cc1de56b6e

SHA256
f36200f916cd09422a334e4a14ee9c42848f10457e031f800f6deea935d6866c

SHA512
3248ff745a8a139f6809a2de08b5760208116acefab8b7b74129c2e5c72d53a5a79f897154caaa4fa8f2e2da069022de34da547d3ddcaf216bc97b86246ee875

Download Submit
memory/112-0-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download
memory/112-8-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download
memory/112-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2148-23-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download