2d44a8ebc5e70f68e6d348d39e88e63330f9918321f79caa16aeb37deeca991c

Analysis

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

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29/02/2024, 00:32

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General

Target

2024-02-29_413b08ff5e09491c505d6ef00532696d_cryptolocker.exe
Size

49KB
MD5

413b08ff5e09491c505d6ef00532696d
SHA1

0dc4f10a13bac6d5bba659829d7220adf1b76bfb
SHA256

2d44a8ebc5e70f68e6d348d39e88e63330f9918321f79caa16aeb37deeca991c
SHA512

2889ff5b765cfde21dc550fd03fb4166dc0fa30295d20f78fc381e357baaf34392874b36cba271bf203231e26db6bd4491bb3f9f1c0e2e265a81151a1c4a8398
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIKu:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7w

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224f-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224f-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2788	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2020	2024-02-29_413b08ff5e09491c505d6ef00532696d_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
2020	2024-02-29_413b08ff5e09491c505d6ef00532696d_cryptolocker.exe
2788	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2020 wrote to memory of 2788	2020	2024-02-29_413b08ff5e09491c505d6ef00532696d_cryptolocker.exe	28
PID 2020 wrote to memory of 2788	2020	2024-02-29_413b08ff5e09491c505d6ef00532696d_cryptolocker.exe	28
PID 2020 wrote to memory of 2788	2020	2024-02-29_413b08ff5e09491c505d6ef00532696d_cryptolocker.exe	28
PID 2020 wrote to memory of 2788	2020	2024-02-29_413b08ff5e09491c505d6ef00532696d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-29_413b08ff5e09491c505d6ef00532696d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-29_413b08ff5e09491c505d6ef00532696d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2020
- 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:2788

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
50KB

MD5
2f1e2abbba869896ac7ec1cb9e97a8ce

SHA1
886a61f2afe335741c3de082a381a9edb0cb9b91

SHA256
ac06c97e4940272315697c8ff1e936b955a9296d7c881785704873830a265d1b

SHA512
7132f36a2bc44523650eb3f82cbfdca45af5cf1a6213086dbd39652d22d8bb67e6fc5f5f79641d72a5f914758136b82ec7a1c2181a83e2aaa5c444f08320209e

Download Submit
memory/2020-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2020-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2020-8-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download