9146417c7bb7782aae846c83d58a6fd76fe8beee84ae3988cf95449d046095ef

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
04-04-2024 22:27

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General

Target

2024-04-04_5f3d706b2cd4ec0a0348ef5b2495dfaf_cryptolocker.exe
Size

40KB
MD5

5f3d706b2cd4ec0a0348ef5b2495dfaf
SHA1

4bef8443079bc2519ea4a2cd4ee130151e6a9c09
SHA256

9146417c7bb7782aae846c83d58a6fd76fe8beee84ae3988cf95449d046095ef
SHA512

e1016b05b32336824fdc5b4c315bdbeee5bf093c82e28c915b82c0b9219a6912a6bc51d7f264f79f076a01dc8a93b93f189f0a8caa1fe9a79571113b3df46d04
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDDw3sCu5b+rc5vVcMg:bgGYcA/53GADw8ClrcTcMg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012247-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2828	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1808	2024-04-04_5f3d706b2cd4ec0a0348ef5b2495dfaf_cryptolocker.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1808 wrote to memory of 2828	1808	2024-04-04_5f3d706b2cd4ec0a0348ef5b2495dfaf_cryptolocker.exe	28
PID 1808 wrote to memory of 2828	1808	2024-04-04_5f3d706b2cd4ec0a0348ef5b2495dfaf_cryptolocker.exe	28
PID 1808 wrote to memory of 2828	1808	2024-04-04_5f3d706b2cd4ec0a0348ef5b2495dfaf_cryptolocker.exe	28
PID 1808 wrote to memory of 2828	1808	2024-04-04_5f3d706b2cd4ec0a0348ef5b2495dfaf_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-04_5f3d706b2cd4ec0a0348ef5b2495dfaf_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-04_5f3d706b2cd4ec0a0348ef5b2495dfaf_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1808
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2828

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\hasfj.exe

Filesize
40KB

MD5
0c37361f993aad52bd3bb8011570ee22

SHA1
8a93424d2e40e58badb2f75009f5e925833bc4f4

SHA256
5b02ef70fad426209b186e683305cb0149057ed53c221ebfcc5b898047471de8

SHA512
6b3b29fbe96fd01321d9e5d609140d2197e2af22c2b5075d0fe7c3043fb52a2555a038e37c041af023d49e57cd0aedb62eaca1fb0bf53c4ff8158e0cd9fae8ad

Download Submit
memory/1808-0-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1808-1-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/1808-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2828-15-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/2828-17-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download