826eeb590c062075afdbb22d068cd39eb461cbd76bb9859c88574517994a3c3d

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
27/05/2024, 04:23

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General

Target

2024-05-27_028d77384e5843219d1bbf709dcde202_cryptolocker.exe
Size

37KB
MD5

028d77384e5843219d1bbf709dcde202
SHA1

cd0f1818043cf70e28c0dde416cc38eacf10bae1
SHA256

826eeb590c062075afdbb22d068cd39eb461cbd76bb9859c88574517994a3c3d
SHA512

5b4ca50f330958008e5d8054f4e141c36e15010771bfc8981234a6ec272157d47c67c5ca974e49f08564ceb3573e7b2dc45e501aa4610962f06eeb5bf45e4834
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunexRlSrxV1PVGw:bA74zYcgT/Ekd0ryfjPIunYwfPVz

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000122ee-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2336	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1576	2024-05-27_028d77384e5843219d1bbf709dcde202_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 1576 wrote to memory of 2336	1576	2024-05-27_028d77384e5843219d1bbf709dcde202_cryptolocker.exe	28
PID 1576 wrote to memory of 2336	1576	2024-05-27_028d77384e5843219d1bbf709dcde202_cryptolocker.exe	28
PID 1576 wrote to memory of 2336	1576	2024-05-27_028d77384e5843219d1bbf709dcde202_cryptolocker.exe	28
PID 1576 wrote to memory of 2336	1576	2024-05-27_028d77384e5843219d1bbf709dcde202_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-27_028d77384e5843219d1bbf709dcde202_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-27_028d77384e5843219d1bbf709dcde202_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1576
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2336

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
37KB

MD5
946d452c881118a72e991774d36e203e

SHA1
7d3841da68083c5517824569308e3481e9cca1d5

SHA256
3c6144711452af816fa1e7325c84bb8ff4dd94d854e09b60000433df6b34d433

SHA512
461fe7fb978cd8bac0b0ba93b0621d098d7204d7c217baf83b9ac2fbec77270a1337b9b1c199e3de111f1f031640ac3b93bebeae9ea5a0f7ba8611f1a6ad59ac

Download Submit
memory/1576-8-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1576-1-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/1576-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2336-15-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2336-22-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download