c3238583dd57e9966962dcee11098e4e1cf4677e498213cd5c28a357d79c0e66

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
13/03/2024, 04:50

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General

Target

2024-03-13_a1453dfbb69b60e20286711630c93cec_cryptolocker.exe
Size

34KB
MD5

a1453dfbb69b60e20286711630c93cec
SHA1

f83c18bb41b939af9075347496c082b0dbd9b827
SHA256

c3238583dd57e9966962dcee11098e4e1cf4677e498213cd5c28a357d79c0e66
SHA512

d6629a3da666955286ee32868007b750983a51814c539fe8813edf1d871eb7b8ee878434eb992061205a790aecf9ec959a77c6eb28fa23f1115d8c3d2dc74e9e
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunexRlSrxVfdsHYwr:bA74zYcgT/Ekd0ryfjPIunYw16Nr

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012251-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2560	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2916	2024-03-13_a1453dfbb69b60e20286711630c93cec_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 2916 wrote to memory of 2560	2916	2024-03-13_a1453dfbb69b60e20286711630c93cec_cryptolocker.exe	28
PID 2916 wrote to memory of 2560	2916	2024-03-13_a1453dfbb69b60e20286711630c93cec_cryptolocker.exe	28
PID 2916 wrote to memory of 2560	2916	2024-03-13_a1453dfbb69b60e20286711630c93cec_cryptolocker.exe	28
PID 2916 wrote to memory of 2560	2916	2024-03-13_a1453dfbb69b60e20286711630c93cec_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-13_a1453dfbb69b60e20286711630c93cec_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-13_a1453dfbb69b60e20286711630c93cec_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2916
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2560

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\hasfj.exe

Filesize
35KB

MD5
af953a07e4ac9f819e413802b2e0c3d9

SHA1
9b36749a6322f4ebb4400bab723866ceed28029e

SHA256
73e03cc6c04e1f0d6341d040831cdc1836b2ea7a74c555c411647320b3a1f8a4

SHA512
0d7c52501d5679dafb2d94cc17ff081f30c7eee7ccdbf5a00b8f594c515f8bd5fa078d7886f98f60cb12c4f49b9d3f1ed0ae64754594af9faa62c7e253d6bfc2

Download Submit
memory/2560-15-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2560-18-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/2916-1-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

Filesize
24KB

Download
memory/2916-3-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download
memory/2916-0-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download