e6588e4857927cf12c7be6e2c46938a5de3cdba8cbd72b196b821a530fabfc56

Analysis

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

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
30/04/2024, 06:46

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General

Target

2024-04-30_f48c88b3fdcc5951532c0dd48284b945_cryptolocker.exe
Size

51KB
MD5

f48c88b3fdcc5951532c0dd48284b945
SHA1

7c40c23c656c6725db8a4dcac74121dc25e57d5b
SHA256

e6588e4857927cf12c7be6e2c46938a5de3cdba8cbd72b196b821a530fabfc56
SHA512

5e560e524782bc2385236063a509659bc3f7454b5b2c3a88281f7ff272757309be7e526be722136b842494fa9d30f044ed32128b0d67d22b664b66dd37b36408
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/rJ+Nw8qnTHGf09:79mqyNhQMOtEvwDpjBxe8GGfS

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2700-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b00000001431b-11.dat	CryptoLocker_rule2
behavioral1/memory/2700-13-0x0000000001DD0000-0x0000000001DDF000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2700-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2700-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b00000001431b-11.dat	CryptoLocker_set1
behavioral1/memory/2700-13-0x0000000001DD0000-0x0000000001DDF000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2700-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2544	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2700	2024-04-30_f48c88b3fdcc5951532c0dd48284b945_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 2700 wrote to memory of 2544	2700	2024-04-30_f48c88b3fdcc5951532c0dd48284b945_cryptolocker.exe	28
PID 2700 wrote to memory of 2544	2700	2024-04-30_f48c88b3fdcc5951532c0dd48284b945_cryptolocker.exe	28
PID 2700 wrote to memory of 2544	2700	2024-04-30_f48c88b3fdcc5951532c0dd48284b945_cryptolocker.exe	28
PID 2700 wrote to memory of 2544	2700	2024-04-30_f48c88b3fdcc5951532c0dd48284b945_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-30_f48c88b3fdcc5951532c0dd48284b945_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_f48c88b3fdcc5951532c0dd48284b945_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2700
- 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

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Downloads

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

Filesize
51KB

MD5
658ac972091a8f234e51357a2dac43ad

SHA1
062e50dd47f536774189809ed114293fb33e1dfb

SHA256
0d27dd27b3dc723fa36416b54e6b3c79561a01dfbf332eb3ff46c0721c16aa03

SHA512
2c6a506b74d154febec20626bc900dbdc9a5fe86db7bfcec643fffa2159b214f5288ad820c8cdd6dd067e26d400b992b453a9c96329a2792259d26f8ef58b9c5

Download Submit
memory/2544-18-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2544-25-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2700-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2700-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2700-2-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2700-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2700-13-0x0000000001DD0000-0x0000000001DDF000-memory.dmp

Filesize
60KB

Download
memory/2700-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download