b3998d362a4f818d34cde98327f650bcc53df590cbbf74f38d878737d2e09dcc

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
27/02/2024, 18:27

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General

Target

2024-02-27_112e9c0050d8ebbdd15e2be18d7390eb_cryptolocker.exe
Size

34KB
MD5

112e9c0050d8ebbdd15e2be18d7390eb
SHA1

8b769de483f5349ac803f518a418560e5c5f15bb
SHA256

b3998d362a4f818d34cde98327f650bcc53df590cbbf74f38d878737d2e09dcc
SHA512

69084f7f3b9bdf8f309536b6482c1ee9f18f16feab2d5e76450f7c57825864b36c54f1e0debd5f6e31de0402af2b010bd3a505c31cea17f7bd860c8449c2d61e
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunexRlSrxVc7+4E3:bA74zYcgT/Ekd0ryfjPIunYwlZ3

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012251-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3040	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2372	2024-02-27_112e9c0050d8ebbdd15e2be18d7390eb_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 2372 wrote to memory of 3040	2372	2024-02-27_112e9c0050d8ebbdd15e2be18d7390eb_cryptolocker.exe	28
PID 2372 wrote to memory of 3040	2372	2024-02-27_112e9c0050d8ebbdd15e2be18d7390eb_cryptolocker.exe	28
PID 2372 wrote to memory of 3040	2372	2024-02-27_112e9c0050d8ebbdd15e2be18d7390eb_cryptolocker.exe	28
PID 2372 wrote to memory of 3040	2372	2024-02-27_112e9c0050d8ebbdd15e2be18d7390eb_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-27_112e9c0050d8ebbdd15e2be18d7390eb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-27_112e9c0050d8ebbdd15e2be18d7390eb_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3040

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
34KB

MD5
71ec3a76160726164a75dbec88f7dd5a

SHA1
1548345a1a17d55148c8fb87c4da3dfdc636ce86

SHA256
11d3275546782ee8e526170042237a824707cefd49ef4133d52ec2148ea095a4

SHA512
5fefb0eab1199880ab39dfd40dc119b6dc3e16192f009a7a9274cbe6d0d5b3f07c010f4d9461c37c8754d8b542a0f4e0a3f7f29707114f8f4bf7a81516c215bb

Download Submit
memory/2372-0-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2372-1-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2372-3-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/3040-15-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

Filesize
24KB

Download
memory/3040-22-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download