351c292da1c0fdb5bfb5b00ce5c5d78dc2d9f3895c2297244f96b81f75450cbd

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
02/06/2024, 10:47

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General

Target

2024-06-02_1778326102355ca94846f4a70fcaeec6_cryptolocker.exe
Size

45KB
MD5

1778326102355ca94846f4a70fcaeec6
SHA1

43edadcc70f8d88e9db5a1dbcbb6b032a7d8dba1
SHA256

351c292da1c0fdb5bfb5b00ce5c5d78dc2d9f3895c2297244f96b81f75450cbd
SHA512

da56cc04fb77c6a05c75a1e5c28405faec79c72de4c31cb71152a6378fb136776fdf8a9eb52621fcb175f1c1e7b93a0700a9fd9a1afca9dceb6c3bb4b9b401d3
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9m:X6QFElP6n+gJQMOtEvwDpjBmzDkWDg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012253-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012253-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2952	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2856	2024-06-02_1778326102355ca94846f4a70fcaeec6_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 2856 wrote to memory of 2952	2856	2024-06-02_1778326102355ca94846f4a70fcaeec6_cryptolocker.exe	28
PID 2856 wrote to memory of 2952	2856	2024-06-02_1778326102355ca94846f4a70fcaeec6_cryptolocker.exe	28
PID 2856 wrote to memory of 2952	2856	2024-06-02_1778326102355ca94846f4a70fcaeec6_cryptolocker.exe	28
PID 2856 wrote to memory of 2952	2856	2024-06-02_1778326102355ca94846f4a70fcaeec6_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-02_1778326102355ca94846f4a70fcaeec6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-02_1778326102355ca94846f4a70fcaeec6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2856
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2952

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\asih.exe

Filesize
45KB

MD5
b5ffa91729e3e8c9c0b997dfc931c6b0

SHA1
dd8e508dddcdcb2e8b77c1a76de9a6f140e93ea0

SHA256
b1e024c921c0459c43e6ee7e5894e2ecbd9b855919217d1c02bcda442ae59830

SHA512
c6cadc5490b37ba146572f7a8876ff2bb91d3aa416c0f9f4325203341ca772195eb410d9e5a8c5f3ed2d0f0b619f55bdc9b42688b27dd0db5dc248740e4997d6

Download Submit
memory/2856-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2856-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2856-8-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2952-15-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2952-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download