192e966ed9a7ee75a0c907bdb226d78436516d9768eed631ee2f15a51372255e

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
23/05/2024, 21:26

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General

Target

2024-05-23_1ead185e1c0b1e9a65cbeb09d095851e_cryptolocker.exe
Size

33KB
MD5

1ead185e1c0b1e9a65cbeb09d095851e
SHA1

bc3173c2af14c7269b40999b904536dd9ef36612
SHA256

192e966ed9a7ee75a0c907bdb226d78436516d9768eed631ee2f15a51372255e
SHA512

3a4c675eecd938fd73c2e0defc0de60a87cd41cee7e0ef71bfc56f56a22e236d002b6f6e74ac708600fdf7f0f58ba884e82da51283ee2438c9671b6ab664dd33
SSDEEP

384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGXvxwM:bG74zYcgT/Ekd0ryfjkmM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

resource	yara_rule
behavioral1/memory/2716-0-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d00000001226b-11.dat	CryptoLocker_rule2
behavioral1/memory/2716-13-0x0000000001DB0000-0x0000000001DBA000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2716-16-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2136-17-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2136-27-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2136	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2716	2024-05-23_1ead185e1c0b1e9a65cbeb09d095851e_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 2716 wrote to memory of 2136	2716	2024-05-23_1ead185e1c0b1e9a65cbeb09d095851e_cryptolocker.exe	28
PID 2716 wrote to memory of 2136	2716	2024-05-23_1ead185e1c0b1e9a65cbeb09d095851e_cryptolocker.exe	28
PID 2716 wrote to memory of 2136	2716	2024-05-23_1ead185e1c0b1e9a65cbeb09d095851e_cryptolocker.exe	28
PID 2716 wrote to memory of 2136	2716	2024-05-23_1ead185e1c0b1e9a65cbeb09d095851e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-23_1ead185e1c0b1e9a65cbeb09d095851e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_1ead185e1c0b1e9a65cbeb09d095851e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2716
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2136

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
33KB

MD5
9616019c13c6cd64bf2538c5dc03f6ef

SHA1
8173b26fb7f559bccaaa2bc971c20ce85b2c6cc5

SHA256
fc05936b1ff6a249c573d8223e9619769b6f8765457f2b57e35347624e68ef4b

SHA512
4430e79c33646bf747bd03a10bc7b96d4641a3c46e8a5496f6f2ef71c64d69fce768e265f848c14ff07e45baac003c9647cac4c8de58dcd64541aadc6d2aeb1c

Download Submit
memory/2136-17-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2136-19-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/2136-26-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/2136-27-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2716-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2716-1-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/2716-9-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/2716-2-0x0000000001CF0000-0x0000000001CF6000-memory.dmp

Filesize
24KB

Download
memory/2716-13-0x0000000001DB0000-0x0000000001DBA000-memory.dmp

Filesize
40KB

Download
memory/2716-16-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download