2876473981136e0a9e3f20c051772b9481af71a87d97bdc5fab0750174a491d3

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
12/02/2024, 09:46

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General

Target

2024-02-12_5f140bb6017298ca701d5b1a71630794_cryptolocker.exe
Size

33KB
MD5

5f140bb6017298ca701d5b1a71630794
SHA1

b7500576ef9f428c8094a85450d76077f0a74be5
SHA256

2876473981136e0a9e3f20c051772b9481af71a87d97bdc5fab0750174a491d3
SHA512

a257293a72075ecd75214d0801db49d2b86b1c2bd8e8ffbe5f075a0d04e666f7f2fac848c99405dbf255fccc312382bea04c174149baaa7bc1223d2e416384bb
SSDEEP

384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf0w3sp8awF:bgX4zYcgTEu6QOaryfjqDDw3sCawF

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000133a9-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1264	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2904	2024-02-12_5f140bb6017298ca701d5b1a71630794_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 2904 wrote to memory of 1264	2904	2024-02-12_5f140bb6017298ca701d5b1a71630794_cryptolocker.exe	28
PID 2904 wrote to memory of 1264	2904	2024-02-12_5f140bb6017298ca701d5b1a71630794_cryptolocker.exe	28
PID 2904 wrote to memory of 1264	2904	2024-02-12_5f140bb6017298ca701d5b1a71630794_cryptolocker.exe	28
PID 2904 wrote to memory of 1264	2904	2024-02-12_5f140bb6017298ca701d5b1a71630794_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-12_5f140bb6017298ca701d5b1a71630794_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_5f140bb6017298ca701d5b1a71630794_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2904
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1264

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
33KB

MD5
d74a44aa7d4840aeeff02928494042a4

SHA1
b368a225c52a552c57ef8b79080f6e70a3cd5e29

SHA256
49e2f55f44349afd2311d8fe20233a89467c90dc30b68e4aff007253ffb1ce75

SHA512
5c2353763704ed33965a50194774da3971457e9b510d62073f70eeb4867e443a8151c832ec537949173d68c46a6587ef3f67c1b7b2647ad8e5727ba00902b85e

Download Submit
memory/1264-16-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/1264-15-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2904-0-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2904-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2904-7-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download