574d1f8c84e47acdaddfa8e89658f28afe6b4739d83b8b7d391a6ed5b25409a2

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
26/05/2024, 02:24

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General

Target

2024-05-26_26b83427338b2f7816e9a3471a4bf67e_cryptolocker.exe
Size

40KB
MD5

26b83427338b2f7816e9a3471a4bf67e
SHA1

9f57dfd33cbd0b78faf35ce0526a08dc9249fc40
SHA256

574d1f8c84e47acdaddfa8e89658f28afe6b4739d83b8b7d391a6ed5b25409a2
SHA512

513ac15fab9ed118c77fc1ed8c1c1406087eacac8f2b74b0e878a70a0b8f4e56151f9482570a67c5ac19e00ed5bfe474f946860923284ce935c42e6f810ee4ff
SSDEEP

768:bA74zYcgT/Ekd0ryfjPIunqpeNswmT3Hwh:bA6YcA/X6G0W143Qh

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001431b-13.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2508	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1720	2024-05-26_26b83427338b2f7816e9a3471a4bf67e_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 1720 wrote to memory of 2508	1720	2024-05-26_26b83427338b2f7816e9a3471a4bf67e_cryptolocker.exe	28
PID 1720 wrote to memory of 2508	1720	2024-05-26_26b83427338b2f7816e9a3471a4bf67e_cryptolocker.exe	28
PID 1720 wrote to memory of 2508	1720	2024-05-26_26b83427338b2f7816e9a3471a4bf67e_cryptolocker.exe	28
PID 1720 wrote to memory of 2508	1720	2024-05-26_26b83427338b2f7816e9a3471a4bf67e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-26_26b83427338b2f7816e9a3471a4bf67e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-26_26b83427338b2f7816e9a3471a4bf67e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2508

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

C:\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
40KB

MD5
4f0c8631e3e3d8c47a293ccd60fcb8a2

SHA1
084b65a75696942823602587a6f59021bf62bc5c

SHA256
feb20c77c309f073eca73686a7cf5b65198e84f77b95d17f8f857be11f19bf55

SHA512
0e4b7d92c02b54867f5ff408bc33e473dfca021323b007f7fdfd5dae9cda29782df8525c30bc1da2312a1bc0a352fa2fbf379893a8f652c30bce91b0b36f807e

Download Submit
memory/1720-1-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/1720-8-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1720-0-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2508-15-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2508-16-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download