448fb9593097d3d1ab45eef3ab987c27ed49cf0817cc41afa2bf2d53b3c9d31c

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
16/05/2024, 07:08

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General

Target

2024-05-16_a7c9e9a90cdcefdffd1bf243659094d3_cryptolocker.exe
Size

76KB
MD5

a7c9e9a90cdcefdffd1bf243659094d3
SHA1

84402129e3f4057dd3102a0271cd73cde85f24a7
SHA256

448fb9593097d3d1ab45eef3ab987c27ed49cf0817cc41afa2bf2d53b3c9d31c
SHA512

041b9b4bf6f310c9ff4bbf9f6187355e812dbaa7379faff06fe730aadc429079afe521296d02dfe6a88398b21b415d42e96f874759168446800aea3e8d11e870
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsoLkN:X6a+SOtEvwDpjBZYvQd2e

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000f00000001227e-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000f00000001227e-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2852	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3016	2024-05-16_a7c9e9a90cdcefdffd1bf243659094d3_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 3016 wrote to memory of 2852	3016	2024-05-16_a7c9e9a90cdcefdffd1bf243659094d3_cryptolocker.exe	28
PID 3016 wrote to memory of 2852	3016	2024-05-16_a7c9e9a90cdcefdffd1bf243659094d3_cryptolocker.exe	28
PID 3016 wrote to memory of 2852	3016	2024-05-16_a7c9e9a90cdcefdffd1bf243659094d3_cryptolocker.exe	28
PID 3016 wrote to memory of 2852	3016	2024-05-16_a7c9e9a90cdcefdffd1bf243659094d3_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-16_a7c9e9a90cdcefdffd1bf243659094d3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-16_a7c9e9a90cdcefdffd1bf243659094d3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2852

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\asih.exe

Filesize
77KB

MD5
285a81aaa74c8ceb4ba12fe4e72791b4

SHA1
0d8d1c02ee823a4e4a8777f2ccf1098672afc1d7

SHA256
8b5b6325081cda66ad66ffb6867df5416047a3bfe5b44926fa79694acac52251

SHA512
b24e41d9264ff700f17374db2191d99332a8b33dbc01726351fc05cef23ab8a5b48e65493551beaea8230d7e265fd9d7f92e71a40729bdedcbd669408f059dfc

Download Submit
memory/2852-15-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2852-22-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3016-0-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/3016-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/3016-8-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download