6ab241aeb3f216618447f249c1fd34d1c7a45a46f73430910d90f3e890201181

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29/02/2024, 00:55

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General

Target

2024-02-29_e3da0baac823c11cf8f988bbbfdadd73_cryptolocker.exe
Size

63KB
MD5

e3da0baac823c11cf8f988bbbfdadd73
SHA1

0f6ed76a36c74ea119245e3cab26068340713c69
SHA256

6ab241aeb3f216618447f249c1fd34d1c7a45a46f73430910d90f3e890201181
SHA512

0f0299705e480075065896340d828c0032c31affcb0feafc67f169ecb67515b5b99782c0307b7deab96534c2036062d1d8d6498c7b702705ada1ef66ecf89967
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF299d9:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224f-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224f-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2544	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1976	2024-02-29_e3da0baac823c11cf8f988bbbfdadd73_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
1976	2024-02-29_e3da0baac823c11cf8f988bbbfdadd73_cryptolocker.exe
2544	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1976 wrote to memory of 2544	1976	2024-02-29_e3da0baac823c11cf8f988bbbfdadd73_cryptolocker.exe	28
PID 1976 wrote to memory of 2544	1976	2024-02-29_e3da0baac823c11cf8f988bbbfdadd73_cryptolocker.exe	28
PID 1976 wrote to memory of 2544	1976	2024-02-29_e3da0baac823c11cf8f988bbbfdadd73_cryptolocker.exe	28
PID 1976 wrote to memory of 2544	1976	2024-02-29_e3da0baac823c11cf8f988bbbfdadd73_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-29_e3da0baac823c11cf8f988bbbfdadd73_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-29_e3da0baac823c11cf8f988bbbfdadd73_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1976
- 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:2544

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
64KB

MD5
07a489d64e05c5ac52321ca02ea37eb9

SHA1
8343cf149c7c309896f00c28ad047de8a15a9951

SHA256
e758e13ce780f7b775754fca0def6a9ef85f8216cf9dca879c74094059c637b9

SHA512
3790609df246f2f63bbb1e02a9a67301e69217d771493849ece6a1ea5205432a2af5f1345d100b1a7af0ec455d61b01077804d15b41eeba387e0f96b3ab1a506

Download Submit
memory/1976-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1976-2-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1976-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2544-17-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download