07335c16cb72a4ffdc105453328e98c4c51f0f25e30e0170788edb6a5f727274

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
03/06/2024, 21:32

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-06-03_70111f94a0196e890e49e87989d6d37d_cryptolocker.exe
Size

45KB
MD5

70111f94a0196e890e49e87989d6d37d
SHA1

cf8e018f724535606106c81e879eb61fcef6db1e
SHA256

07335c16cb72a4ffdc105453328e98c4c51f0f25e30e0170788edb6a5f727274
SHA512

e09d068d9bc699d54fe65ebeb856ec18d622f5ccdac760cd2d3b64269e01bc48aa3fcff728d0b7c3de0ceceae83253e07525fc4d4d7de5600fec891ca7728a04
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9H7Zhwo:X6QFElP6n+gJQMOtEvwDpjBmzDkWDt7P

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000149f5-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000149f5-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2336	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
824	2024-06-03_70111f94a0196e890e49e87989d6d37d_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 824 wrote to memory of 2336	824	2024-06-03_70111f94a0196e890e49e87989d6d37d_cryptolocker.exe	28
PID 824 wrote to memory of 2336	824	2024-06-03_70111f94a0196e890e49e87989d6d37d_cryptolocker.exe	28
PID 824 wrote to memory of 2336	824	2024-06-03_70111f94a0196e890e49e87989d6d37d_cryptolocker.exe	28
PID 824 wrote to memory of 2336	824	2024-06-03_70111f94a0196e890e49e87989d6d37d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-03_70111f94a0196e890e49e87989d6d37d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-03_70111f94a0196e890e49e87989d6d37d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:824
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.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

Loading Replay Monitor...

Downloads

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

Filesize
45KB

MD5
8826241e108b005c5da57250274eb890

SHA1
6eb4351b3941dcdb9d0d025d1e53e4afceb5600f

SHA256
c81704e45da2834012d36bf22870ab3796f81eded9cb502861728fff1341faba

SHA512
86eabe69766e032dd69e77360082f8409ddd7bea4bb000a098b1f1274eb0c038a76d61218453f91fd7b0bc7f35d75f262410984eb3398c59f253717982a3510a

Download Submit
memory/824-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/824-1-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/824-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2336-15-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download