b12de42f2f70df68d00b022727d943a02eefccfa33cc799d4e456c29fe6c168f

Analysis

max time kernel
133s
max time network
143s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
12/03/2024, 07:26

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General

Target

2024-03-12_5ea5b95eca55da66a90c87458d8630f7_cryptolocker.exe
Size

50KB
MD5

5ea5b95eca55da66a90c87458d8630f7
SHA1

a7636fbd138552f459bccb83257fcf3e06361d25
SHA256

b12de42f2f70df68d00b022727d943a02eefccfa33cc799d4e456c29fe6c168f
SHA512

5406418afb1de36fe56493985b62953826a2af2e1feae639f52b246dde106db7188557eb7544602c8491415c79726a37f0cab933b4e69fbc0cd1e3daae624450
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjeJQ7pojakNT:V6a+pOtEvwDpjs

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012265-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012265-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2256	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
620	2024-03-12_5ea5b95eca55da66a90c87458d8630f7_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 620 wrote to memory of 2256	620	2024-03-12_5ea5b95eca55da66a90c87458d8630f7_cryptolocker.exe	28
PID 620 wrote to memory of 2256	620	2024-03-12_5ea5b95eca55da66a90c87458d8630f7_cryptolocker.exe	28
PID 620 wrote to memory of 2256	620	2024-03-12_5ea5b95eca55da66a90c87458d8630f7_cryptolocker.exe	28
PID 620 wrote to memory of 2256	620	2024-03-12_5ea5b95eca55da66a90c87458d8630f7_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-12_5ea5b95eca55da66a90c87458d8630f7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_5ea5b95eca55da66a90c87458d8630f7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:620
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2256

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
50KB

MD5
f7faa0a0b27c36465dc8ef0507d49009

SHA1
ea35bcaaa70ca15f40909d5b8d7351142f77149a

SHA256
11c15d82cfe2609d1f50400c7a2c328c8de6512d1bf42607daa4dd15fa2bac66

SHA512
c45ca3d0b5cc9f80652b3492e2617f9e6bd27f773928eeac9983b7004bdf8d7b2c320092864827d050b29282dd9b0c6a7b4e2ac7a0035126455c810388cc5906

Download Submit
memory/620-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/620-1-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/620-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2256-15-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2256-17-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download