4bf0b83a54ba00c8f4d6883541a05edf94d938c7c0c74ad4d7f89fec4a7ccc91

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28-04-2024 01:41

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-04-28_aec37060c1cd99349e8e165b4d86cf2f_cryptolocker.exe
Size

74KB
MD5

aec37060c1cd99349e8e165b4d86cf2f
SHA1

dff1d0a877a4519a120fef27c34c6df51e19ba65
SHA256

4bf0b83a54ba00c8f4d6883541a05edf94d938c7c0c74ad4d7f89fec4a7ccc91
SHA512

1cbae592a09b8f62f80003abcc6bdd5843ee9396b66bb7a9614ac98d0e80da36f76307a54446d4ba6953bf833fe276dbe1bcc24a7446b12a15b3b7daca929ff3
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHs9:X6a+SOtEvwDpjBZYvQd22

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000015cb6-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000015cb6-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2132	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2956	2024-04-28_aec37060c1cd99349e8e165b4d86cf2f_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 2956 wrote to memory of 2132	2956	2024-04-28_aec37060c1cd99349e8e165b4d86cf2f_cryptolocker.exe	28
PID 2956 wrote to memory of 2132	2956	2024-04-28_aec37060c1cd99349e8e165b4d86cf2f_cryptolocker.exe	28
PID 2956 wrote to memory of 2132	2956	2024-04-28_aec37060c1cd99349e8e165b4d86cf2f_cryptolocker.exe	28
PID 2956 wrote to memory of 2132	2956	2024-04-28_aec37060c1cd99349e8e165b4d86cf2f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-28_aec37060c1cd99349e8e165b4d86cf2f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-28_aec37060c1cd99349e8e165b4d86cf2f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2956
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2132

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

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
74KB

MD5
98f02f4b8fadc10f8a956ec85e73c654

SHA1
fc8cc7533420eb4b0fff3ed1211a0a295f9a138b

SHA256
bbec35e06676f5cfd2811104e04d474ecf767d52731c17791bf172ef757ede0a

SHA512
eb04fcafad5e8905cc41beaebf8b2ca9ccc0e60cd714ad7d0833106bf44bc471ca13875471c2c0e3df63ebef82d2eef9f32523c66472b7cd08a44425d0d4e399

Download Submit
memory/2132-15-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2132-22-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2956-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2956-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2956-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download