67f47c66eb6b9996621450311c55a1d8a478831d87f3691919d3da30983b5d55

Analysis

max time kernel
150s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15/04/2024, 10:00

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General

Target

2024-04-15_999e52cdab682ca05c2ad35d26e46d71_cryptolocker.exe
Size

389KB
MD5

999e52cdab682ca05c2ad35d26e46d71
SHA1

58ebcb00578dab32e938126aeffefa5a278d83b0
SHA256

67f47c66eb6b9996621450311c55a1d8a478831d87f3691919d3da30983b5d55
SHA512

6be4d00729ecc7c2a1b7561847d81a9338c96c8f2e1ee3371ecdb2e5a8e328e72f4b8b0b10a4b7cb3122d1b06fc82951bb2a1c393cdf87d95114d2c9f5cb7589
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXd:nnOflT/ZFIjBz3xjTxynGUOUhXd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001234b-13.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2968	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1956	2024-04-15_999e52cdab682ca05c2ad35d26e46d71_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 1956 wrote to memory of 2968	1956	2024-04-15_999e52cdab682ca05c2ad35d26e46d71_cryptolocker.exe	28
PID 1956 wrote to memory of 2968	1956	2024-04-15_999e52cdab682ca05c2ad35d26e46d71_cryptolocker.exe	28
PID 1956 wrote to memory of 2968	1956	2024-04-15_999e52cdab682ca05c2ad35d26e46d71_cryptolocker.exe	28
PID 1956 wrote to memory of 2968	1956	2024-04-15_999e52cdab682ca05c2ad35d26e46d71_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-15_999e52cdab682ca05c2ad35d26e46d71_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-15_999e52cdab682ca05c2ad35d26e46d71_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2968

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

C:\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
389KB

MD5
a34af336785b6b66d649cf88b2e4b959

SHA1
b236a5cde8937b63681f773fd70e5be2a0cbc196

SHA256
b5a82c626022540b242ae60e5cbd51033ccbb6df845d3393074126bba97a38bc

SHA512
11304a0a2e5c46a450f377cc043a5b4c3e37c7c816b794270a8014fd19a018b19163db4ba849c3f835d1e2f4261341f4c405a3ae4b8e9d8bd3fa3c79287d9ef4

Download Submit
memory/1956-0-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/1956-1-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

Filesize
24KB

Download
memory/1956-8-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/2968-15-0x0000000000580000-0x0000000000586000-memory.dmp

Filesize
24KB

Download
memory/2968-17-0x0000000000570000-0x0000000000576000-memory.dmp

Filesize
24KB

Download