3dda3fd03b7058526d9a6fa6c942161ba1265355bd6c7cf459a16c6d87d3691a

Analysis

max time kernel
141s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
20/05/2024, 00:56

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General

Target

2024-05-20_f719f459179079e66e435fad3820f73e_cryptolocker.exe
Size

41KB
MD5

f719f459179079e66e435fad3820f73e
SHA1

3e04ce1faab63656647bcb1016ee97a4641eb3cc
SHA256

3dda3fd03b7058526d9a6fa6c942161ba1265355bd6c7cf459a16c6d87d3691a
SHA512

946d702748169ca11be3af8250f8ede4cc5a219b1e61db3546eefabf59200cabacd45e392ca972e8ec41434934b11361729155d0d50425e7f5a287a80748528a
SSDEEP

768:bA74zYcgT/Ekd0ryfjPIunqpeNswmT3HwN:bA6YcA/X6G0W143QN

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014284-13.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2224	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2512	2024-05-20_f719f459179079e66e435fad3820f73e_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 2512 wrote to memory of 2224	2512	2024-05-20_f719f459179079e66e435fad3820f73e_cryptolocker.exe	28
PID 2512 wrote to memory of 2224	2512	2024-05-20_f719f459179079e66e435fad3820f73e_cryptolocker.exe	28
PID 2512 wrote to memory of 2224	2512	2024-05-20_f719f459179079e66e435fad3820f73e_cryptolocker.exe	28
PID 2512 wrote to memory of 2224	2512	2024-05-20_f719f459179079e66e435fad3820f73e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-20_f719f459179079e66e435fad3820f73e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-20_f719f459179079e66e435fad3820f73e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2224

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
41KB

MD5
5243c918e04ed9bfaa8f4bfcbe10336c

SHA1
90c6745f51b3c2cc4382c7e80addf2ff086f7863

SHA256
abb9b30008709967d2931feffea52aea137604c88cbcfc960ee6a6d40a75b1a0

SHA512
f04967c11b456d80fd02ac62974a1db02ef2c465c4b62b13cba7759b3aeb44ff323a253ea429ed56e88a67ff4dbdcff3bbfa4da6d04d8b247a9deb66920a14e2

Download Submit
memory/2224-22-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2224-15-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2512-2-0x0000000001CF0000-0x0000000001CF6000-memory.dmp

Filesize
24KB

Download
memory/2512-1-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/2512-0-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download