a41e5a35ef6195cf1d73a12490c24ef90c21d637311adfe4e972e447e4acc42c

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
30/05/2024, 03:26

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General

Target

2024-05-30_03e02b5abc0a54627cba3ddb952d3482_cryptolocker.exe
Size

54KB
MD5

03e02b5abc0a54627cba3ddb952d3482
SHA1

13e6a18ee0c1ce4337254bff30b7adfd03409d4d
SHA256

a41e5a35ef6195cf1d73a12490c24ef90c21d637311adfe4e972e447e4acc42c
SHA512

0434c4e5bfa2c2f72e5ce407e7cf5d75fb0c261aa32689ce72ac1f7e1e06825ee7bf117ff2718ccbf5de83e8ccbb663a7caadf58afc121e76dcc2e7cba45ca7a
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIX6Em:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7j

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000e00000001214d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000e00000001214d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3000	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1444	2024-05-30_03e02b5abc0a54627cba3ddb952d3482_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
1444	2024-05-30_03e02b5abc0a54627cba3ddb952d3482_cryptolocker.exe
3000	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1444 wrote to memory of 3000	1444	2024-05-30_03e02b5abc0a54627cba3ddb952d3482_cryptolocker.exe	28
PID 1444 wrote to memory of 3000	1444	2024-05-30_03e02b5abc0a54627cba3ddb952d3482_cryptolocker.exe	28
PID 1444 wrote to memory of 3000	1444	2024-05-30_03e02b5abc0a54627cba3ddb952d3482_cryptolocker.exe	28
PID 1444 wrote to memory of 3000	1444	2024-05-30_03e02b5abc0a54627cba3ddb952d3482_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-30_03e02b5abc0a54627cba3ddb952d3482_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-30_03e02b5abc0a54627cba3ddb952d3482_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1444
- 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:3000

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
55KB

MD5
1525810740602f7e4d3d3258884dfc46

SHA1
c7cee2c38ebfe501569950f69d60a67b0648283e

SHA256
2e5490591a5bee53f197ab30e70b82ddf66e7d3b66ef44d9fdcc75f1fa665ec2

SHA512
1a0f682e11415dceed30138d10d5f8004efd2adbbf7f9f4168fc7925f794b5bf69ecc89b13950cb3f8464d13dd34f9af1185f94edc4f86679c838a6e252410cb

Download Submit
memory/1444-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1444-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1444-8-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/3000-23-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download