1904733c2d2c581c92b9fb6d1de8f830fb518a70991ec86054f8f11f3d46ba0e

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29/05/2024, 15:31

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General

Target

2024-05-29_4e21ff461c9ad50ed41c110b8881f98f_cryptolocker.exe
Size

38KB
MD5

4e21ff461c9ad50ed41c110b8881f98f
SHA1

b79e8609e35754233c71d89704ce1f2263a2eaa4
SHA256

1904733c2d2c581c92b9fb6d1de8f830fb518a70991ec86054f8f11f3d46ba0e
SHA512

70acf0da4434acbabb35a5aec31a7bb46854a6d80cd4f17b7fa91c01a1588e68f4edcbcb596946d8c2d468bd3f00046757068684580791ada84714c5513ac50b
SSDEEP

768:fTz7y3lhsT+hs1SQtOOtEvwDpjfAu9+4C:fT+hsMQMOtEvwDpjoIHC

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001565d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001565d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2592	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2696	2024-05-29_4e21ff461c9ad50ed41c110b8881f98f_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 2696 wrote to memory of 2592	2696	2024-05-29_4e21ff461c9ad50ed41c110b8881f98f_cryptolocker.exe	28
PID 2696 wrote to memory of 2592	2696	2024-05-29_4e21ff461c9ad50ed41c110b8881f98f_cryptolocker.exe	28
PID 2696 wrote to memory of 2592	2696	2024-05-29_4e21ff461c9ad50ed41c110b8881f98f_cryptolocker.exe	28
PID 2696 wrote to memory of 2592	2696	2024-05-29_4e21ff461c9ad50ed41c110b8881f98f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-29_4e21ff461c9ad50ed41c110b8881f98f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-29_4e21ff461c9ad50ed41c110b8881f98f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2696
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2592

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\misid.exe

Filesize
38KB

MD5
481876e7c8f1e43589e5a26fba4671d4

SHA1
bf00a59e3ccd2f23717ce4f504b811a27bfbf479

SHA256
e5b543700b2fcd2d228cb6db0ab4ae02fd1ae317081101b72396ad66544a75db

SHA512
94ac8dd78abdf6b6c59d2e62c5e1bc6360c1a74c1036e2dc55359d1b4c75cbf7376866ede2b0028d171b37d857dc326256be184d166b525952b51cb06848c61f

Download Submit
memory/2592-15-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2592-22-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2696-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2696-1-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2696-8-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download