fa4d24768bd4a4214787de88601860db6cd42b6e441501a477e7652fc869550c

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
01-05-2024 05:18

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General

Target

2024-05-01_dabc52fb6464e1e4f111ee6da9d3505f_cryptolocker.exe
Size

51KB
MD5

dabc52fb6464e1e4f111ee6da9d3505f
SHA1

fa903348edad4c3d10636017cde9ebdd4e56c98e
SHA256

fa4d24768bd4a4214787de88601860db6cd42b6e441501a477e7652fc869550c
SHA512

06ac7a2d440f91b2a4fcfda8b5e5f681cca77cb07a070b607c80c35579e774c903c4bde7442ebda07293038e92c14df462879b897a6cbe6d575b1e3002b20982
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAI49E:aq7tdgI2MyzNORQtOflIwoHNV2XBFV72

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000016c90-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000016c90-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2812	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1556	2024-05-01_dabc52fb6464e1e4f111ee6da9d3505f_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
1556	2024-05-01_dabc52fb6464e1e4f111ee6da9d3505f_cryptolocker.exe
2812	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1556 wrote to memory of 2812	1556	2024-05-01_dabc52fb6464e1e4f111ee6da9d3505f_cryptolocker.exe	28
PID 1556 wrote to memory of 2812	1556	2024-05-01_dabc52fb6464e1e4f111ee6da9d3505f_cryptolocker.exe	28
PID 1556 wrote to memory of 2812	1556	2024-05-01_dabc52fb6464e1e4f111ee6da9d3505f_cryptolocker.exe	28
PID 1556 wrote to memory of 2812	1556	2024-05-01_dabc52fb6464e1e4f111ee6da9d3505f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-01_dabc52fb6464e1e4f111ee6da9d3505f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-01_dabc52fb6464e1e4f111ee6da9d3505f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1556
- 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:2812

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
52KB

MD5
486f875ac94ef7a59ae33ab7afd38997

SHA1
7bac9a00318cc37ca4fd6ac0a25158211ed4779a

SHA256
473e1224f03fcc0821c7947759f2a80363d7f82abd7124d4dd810028dd68ece0

SHA512
fa3eb57aac214aad9a7a2515c463ab70ef591002ac03688b0691ab0dafe02a6a291a1d950e7b4b3132ba8c2f96115e001e08e95b18ff9a95c620365df41f13ec

Download Submit
memory/1556-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1556-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1556-8-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2812-23-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download