3060a7ef70fe4275c64a3c042e23119ac52d6bb8cfcab4cf16813cbccb94453a

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
19/04/2024, 04:07

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General

Target

2024-04-19_7c703f6b4921ec2ad79decae117fd11d_cryptolocker.exe
Size

41KB
MD5

7c703f6b4921ec2ad79decae117fd11d
SHA1

0919670bb3dad92e6cbabc4f973b379cbd2f46f3
SHA256

3060a7ef70fe4275c64a3c042e23119ac52d6bb8cfcab4cf16813cbccb94453a
SHA512

5c66c9d092dbd12e66b256f61ff265e76183d9e8a2e2fe7c513a7a31538b59e96743b497a7d342050db04209484bc99cd46199946d4de2a37ffe0a4499f0db35
SSDEEP

768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAHu:bCDOw9aMDooc+vAO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2368-0-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000012266-11.dat	CryptoLocker_rule2
behavioral1/memory/2368-13-0x0000000001ED0000-0x0000000001EDA000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2368-16-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1132-26-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1132	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2368	2024-04-19_7c703f6b4921ec2ad79decae117fd11d_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 2368 wrote to memory of 1132	2368	2024-04-19_7c703f6b4921ec2ad79decae117fd11d_cryptolocker.exe	28
PID 2368 wrote to memory of 1132	2368	2024-04-19_7c703f6b4921ec2ad79decae117fd11d_cryptolocker.exe	28
PID 2368 wrote to memory of 1132	2368	2024-04-19_7c703f6b4921ec2ad79decae117fd11d_cryptolocker.exe	28
PID 2368 wrote to memory of 1132	2368	2024-04-19_7c703f6b4921ec2ad79decae117fd11d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-19_7c703f6b4921ec2ad79decae117fd11d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-19_7c703f6b4921ec2ad79decae117fd11d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:1132

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\lossy.exe

Filesize
41KB

MD5
2530d39d3a58b1b42d0a4c449c28f974

SHA1
a18fd069a67542e7b9f153645622d8dabe0c9961

SHA256
7f6acd33befc24640b47651f90c6a3c4aefb15e0a48e87d9db6af40be55e6bf3

SHA512
5c2d4cc533de1f85488a877b22fc51fac80250e0295d595289ab4a7f6e67fc3acfd8c60e0da25c17fb40ddb93800a20683e3606d9c9be32a9a6deb5c79b5aec3

Download Submit
memory/1132-19-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/1132-18-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/1132-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2368-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2368-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2368-2-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2368-7-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2368-13-0x0000000001ED0000-0x0000000001EDA000-memory.dmp

Filesize
40KB

Download
memory/2368-16-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download