02d26d4363b01e453f50a35a73a10e87604c86e5db8d4464331c22085c7066f5

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
11-03-2024 15:26

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General

Target

2024-03-11_06ae2773e15f67c09c6f31c9077a885e_cryptolocker.exe
Size

46KB
MD5

06ae2773e15f67c09c6f31c9077a885e
SHA1

bf1e08333560942535f5d447d7233e69d49b9db5
SHA256

02d26d4363b01e453f50a35a73a10e87604c86e5db8d4464331c22085c7066f5
SHA512

1967c308fc8785d0c1c5d29bcb9cf2489faa163e2461fdc45a5cb2c4777224c00a952f226d740b34854c83aa6b2ab37c7ba408ecbfbb466e371425036e542464
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGpebVIYLHA3KxZ:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xo

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012251-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012251-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2588	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2932	2024-03-11_06ae2773e15f67c09c6f31c9077a885e_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2932	2024-03-11_06ae2773e15f67c09c6f31c9077a885e_cryptolocker.exe
2588	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2932 wrote to memory of 2588	2932	2024-03-11_06ae2773e15f67c09c6f31c9077a885e_cryptolocker.exe	28
PID 2932 wrote to memory of 2588	2932	2024-03-11_06ae2773e15f67c09c6f31c9077a885e_cryptolocker.exe	28
PID 2932 wrote to memory of 2588	2932	2024-03-11_06ae2773e15f67c09c6f31c9077a885e_cryptolocker.exe	28
PID 2932 wrote to memory of 2588	2932	2024-03-11_06ae2773e15f67c09c6f31c9077a885e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-11_06ae2773e15f67c09c6f31c9077a885e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-11_06ae2773e15f67c09c6f31c9077a885e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2588

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\hurok.exe

Filesize
46KB

MD5
17780878e1241c86131a3e4452bbc150

SHA1
0e2a57848b553d26390e8ad9e376565d0d9cbbeb

SHA256
b48cadff1be6e285d6daeb94f806f8536cb37c958f05d698261f84469047562c

SHA512
bd00dd6d5c8b697a648ef7510e3f78668e2532c4f5b2a8c164e6ae5fa5fbb3273593851b486e448b6b0359e63049c453d9cecd99344fe0237f652664c361bdbe

Download Submit
memory/2932-0-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2932-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2932-8-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download