e3b1959c1e027c0662d61c6d6646b782884e800118385ce163d00f1a8b7e14f5

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
20/02/2024, 06:13

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General

Target

2024-02-20_e37169d3cbd0d656cb85fcd4e2a98b4d_cryptolocker.exe
Size

71KB
MD5

e37169d3cbd0d656cb85fcd4e2a98b4d
SHA1

474b5997ce15ce7eb7ca969247fa870a9eeb5978
SHA256

e3b1959c1e027c0662d61c6d6646b782884e800118385ce163d00f1a8b7e14f5
SHA512

68873b8dcb0158bc236d3b6754513bc63c1d86afe9c99955bb449fcf161c16116c6029467e946f3de62507c495b40d6bcd6b8f453b628fe99c131aaa45a990d0
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHb:X6a+SOtEvwDpjBZYvQd2P

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000013a1a-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000013a1a-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2352	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2732	2024-02-20_e37169d3cbd0d656cb85fcd4e2a98b4d_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 2732 wrote to memory of 2352	2732	2024-02-20_e37169d3cbd0d656cb85fcd4e2a98b4d_cryptolocker.exe	28
PID 2732 wrote to memory of 2352	2732	2024-02-20_e37169d3cbd0d656cb85fcd4e2a98b4d_cryptolocker.exe	28
PID 2732 wrote to memory of 2352	2732	2024-02-20_e37169d3cbd0d656cb85fcd4e2a98b4d_cryptolocker.exe	28
PID 2732 wrote to memory of 2352	2732	2024-02-20_e37169d3cbd0d656cb85fcd4e2a98b4d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-20_e37169d3cbd0d656cb85fcd4e2a98b4d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_e37169d3cbd0d656cb85fcd4e2a98b4d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2732
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2352

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
72KB

MD5
f740a506e7d8963a0c5cd1eb2b787b40

SHA1
82826edabf3f98d38ef9152c60ced01f138fcfdd

SHA256
9c055b92d6e849cf3871d751f2e9071ba1b7701aae0ddb975caedf58bc168e11

SHA512
0dc10cbf148f69dc26b04c4e90dc7629b15ac60a360d523e3a5c0c019a0756dfc0520ec416a7ab6a1d25a09a9932b7e68d1f2607c4780b28194c1e3d16403c62

Download Submit
memory/2352-15-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2732-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2732-1-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2732-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download