f11ccb535657b25fc559bcf11c2651656715176528478f1a0eca0f2053fca469

Analysis

max time kernel
149s
max time network
156s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15/03/2024, 13:41

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General

Target

2024-03-15_5dde0a380d252e4e51272f8754a983e1_cryptolocker.exe
Size

37KB
MD5

5dde0a380d252e4e51272f8754a983e1
SHA1

dae1b1c82a1c2d7ca421d1c5ba3879f2f35dc275
SHA256

f11ccb535657b25fc559bcf11c2651656715176528478f1a0eca0f2053fca469
SHA512

ac029ea5a14cfc9adb816ace9959d85c91ec521e7d90af8d702c545b5962660221202305d4e656e23c2e1c115cd15d05991041d87bbb1f16ad4f2fecbf068a66
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunIVpeNs23mAA6luXIy:bA74zYcgT/Ekd0ryfjPIunqpeNswmNXJ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001225b-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2932	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2156	2024-03-15_5dde0a380d252e4e51272f8754a983e1_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 2156 wrote to memory of 2932	2156	2024-03-15_5dde0a380d252e4e51272f8754a983e1_cryptolocker.exe	28
PID 2156 wrote to memory of 2932	2156	2024-03-15_5dde0a380d252e4e51272f8754a983e1_cryptolocker.exe	28
PID 2156 wrote to memory of 2932	2156	2024-03-15_5dde0a380d252e4e51272f8754a983e1_cryptolocker.exe	28
PID 2156 wrote to memory of 2932	2156	2024-03-15_5dde0a380d252e4e51272f8754a983e1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-15_5dde0a380d252e4e51272f8754a983e1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_5dde0a380d252e4e51272f8754a983e1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2156
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2932

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
37KB

MD5
d9cd407afa65af131dd71bf0bab20f5c

SHA1
85b8f502e2efb24e303530c9387d65f54cc3b115

SHA256
bbc0f1e2107bd1e15f111fe456cf5a7a4a53d53063f19859dc08545d5141a728

SHA512
a22249ac5c5a19d656bd66e301a48d95628e8e1841ff345821082db9293b4821ecdc170a5cf712b7dd8a79e7be7a72f53f77abd0ce493b2e89e3071685178e65

Download Submit
memory/2156-0-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2156-1-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2156-3-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2932-15-0x0000000001B80000-0x0000000001B86000-memory.dmp

Filesize
24KB

Download
memory/2932-22-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download