678b08eb4921938d29a7bf0c0311c1d39d752160f1dd42e5eeb6f2a8fafdfb1e

Analysis

max time kernel
147s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
01/06/2024, 17:07

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-06-01_f1231fd8db93f4773df93ade3d3049a1_cryptolocker.exe
Size

48KB
MD5

f1231fd8db93f4773df93ade3d3049a1
SHA1

9cd58ab9c6295663a4bb97bbfd03e95e28dbf54e
SHA256

678b08eb4921938d29a7bf0c0311c1d39d752160f1dd42e5eeb6f2a8fafdfb1e
SHA512

9d7b0bf29e4a522aca640b9450a5df5ec676e920468ec8c95dd6a8bb4fca2965909cf9057f01f5a78b9730e1a9794347787ffda71b6968942d5f9fca73b3afe5
SSDEEP

384:e/4wODQkzonAYsju5N/surDQtOOtEvwDpjqIGROqS/WccJVJwi2B5oCCM8CLW2VO:79inqyNR/QtOOtEvwDpjBKccJVODvy3j

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral1/memory/2876-8-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000015cff-11.dat	CryptoLocker_rule2
behavioral1/memory/2544-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/2876-8-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000015cff-11.dat	CryptoLocker_set1
behavioral1/memory/2544-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2544	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2876	2024-06-01_f1231fd8db93f4773df93ade3d3049a1_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 2876 wrote to memory of 2544	2876	2024-06-01_f1231fd8db93f4773df93ade3d3049a1_cryptolocker.exe	28
PID 2876 wrote to memory of 2544	2876	2024-06-01_f1231fd8db93f4773df93ade3d3049a1_cryptolocker.exe	28
PID 2876 wrote to memory of 2544	2876	2024-06-01_f1231fd8db93f4773df93ade3d3049a1_cryptolocker.exe	28
PID 2876 wrote to memory of 2544	2876	2024-06-01_f1231fd8db93f4773df93ade3d3049a1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-01_f1231fd8db93f4773df93ade3d3049a1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-01_f1231fd8db93f4773df93ade3d3049a1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2876
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2544

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
48KB

MD5
d848168d89ecb58af8b00c916a976d2e

SHA1
c291dd2979889969ec8848ffa626e8d952c338da

SHA256
a985c700b672e8cd82a92e1452359cd433a3e2842ca3bff8257ad10e217d704c

SHA512
ff48914a58977421ff3e4f68fb9a58d780f195e702c14947b601f56c7e99eb34ac610c6d3b359abae3e022455c7ca1e7be90049ec451a7c9639792c100e1be9e

Download Submit
memory/2544-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2544-17-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2544-24-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2876-0-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2876-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2876-9-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2876-8-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download