9cdb795d8fcc874c772e1ac4d1de912c7a9013cc7f47090e65944f1687ff4422

Analysis

max time kernel
133s
max time network
145s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08/03/2024, 06:42

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-03-08_cb701e33e12552b1f4eefdcf13067bfa_cryptolocker.exe
Size

41KB
MD5

cb701e33e12552b1f4eefdcf13067bfa
SHA1

bdfcfd919bf15566ad46f65302c2bd6d2aca3c5e
SHA256

9cdb795d8fcc874c772e1ac4d1de912c7a9013cc7f47090e65944f1687ff4422
SHA512

c4f7580133f0cdb5c0b050bc2bd89ab453ca846347b7baf9402195bf9a902ab120ebfa0ee6c5d58d511e728cbfda0d5be6e5023d72385129002299de7bbf5178
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedqs:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+x

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2956-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d0000000133a4-11.dat	CryptoLocker_rule2
behavioral1/memory/2956-14-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2188-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2956-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d0000000133a4-11.dat	CryptoLocker_set1
behavioral1/memory/2956-14-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2188-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2188	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2956	2024-03-08_cb701e33e12552b1f4eefdcf13067bfa_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 2956 wrote to memory of 2188	2956	2024-03-08_cb701e33e12552b1f4eefdcf13067bfa_cryptolocker.exe	28
PID 2956 wrote to memory of 2188	2956	2024-03-08_cb701e33e12552b1f4eefdcf13067bfa_cryptolocker.exe	28
PID 2956 wrote to memory of 2188	2956	2024-03-08_cb701e33e12552b1f4eefdcf13067bfa_cryptolocker.exe	28
PID 2956 wrote to memory of 2188	2956	2024-03-08_cb701e33e12552b1f4eefdcf13067bfa_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-08_cb701e33e12552b1f4eefdcf13067bfa_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_cb701e33e12552b1f4eefdcf13067bfa_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2956
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2188

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
41KB

MD5
4f4f002686c336dde305f4612a806acb

SHA1
46b9874c8a30103e0cbadc7a947591f956935255

SHA256
9855ddf3bd92a0ab1788113b7d1de7f9710fd2aade353b59f90f4bd2a08a8d8a

SHA512
a3d356923825531b18702580db3d7b901e0bf5d3a055a3e208586b47f05ebc86065f7ab9add443be5c30201b8bb6ea9cc28bf879c1063378218bcf2893b08a58

Download Submit
memory/2188-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2188-19-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2188-18-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2956-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2956-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2956-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2956-5-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2956-14-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download