ba532fa91893c6be119bca100dfe36ca26f260bc78b27de952509c387afc3b04

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
19/05/2024, 20:26

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General

Target

2024-05-19_3859cc8e8e84e761bd9adee00473f31c_cryptolocker.exe
Size

41KB
MD5

3859cc8e8e84e761bd9adee00473f31c
SHA1

51b2c0594bc4207477473e613ce015c65484b5ca
SHA256

ba532fa91893c6be119bca100dfe36ca26f260bc78b27de952509c387afc3b04
SHA512

2933dd22afa57386a4190a69bff7a0622e079432a28c490d98b5a60066828cb1d6fd0e91ea0b75983c0337bf465180b8766a9d6cc2e59ecd5b5e9413d631b677
SSDEEP

768:bA74zYcgT/Ekd0ryfjPIunqpeNswmT3HwnC1:bA6YcA/X6G0W143QO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000016056-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2516	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1932	2024-05-19_3859cc8e8e84e761bd9adee00473f31c_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 1932 wrote to memory of 2516	1932	2024-05-19_3859cc8e8e84e761bd9adee00473f31c_cryptolocker.exe	28
PID 1932 wrote to memory of 2516	1932	2024-05-19_3859cc8e8e84e761bd9adee00473f31c_cryptolocker.exe	28
PID 1932 wrote to memory of 2516	1932	2024-05-19_3859cc8e8e84e761bd9adee00473f31c_cryptolocker.exe	28
PID 1932 wrote to memory of 2516	1932	2024-05-19_3859cc8e8e84e761bd9adee00473f31c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-19_3859cc8e8e84e761bd9adee00473f31c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-19_3859cc8e8e84e761bd9adee00473f31c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1932
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2516

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
41KB

MD5
393c51fe4f5d22118c448f392708da5a

SHA1
bbf99c0634c03523af1d2564e3891d4b2107f348

SHA256
6cf3e13fcb6aa8d86b9054e56e3f810dde8d8ae259c5bfdcbb3fe57c38e1adcf

SHA512
812cd6e059dbf82f545226d16b8b4b17e626b0511e1c31cc4abda8d95ec0f53934b4fc66591b8b342580f87a8358358c761a4815d66725a21c7ca39a4a534fcd

Download Submit
memory/1932-0-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/1932-8-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/1932-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/2516-15-0x0000000001CF0000-0x0000000001CF6000-memory.dmp

Filesize
24KB

Download
memory/2516-22-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download