9910dbdec1d211cb9da8cf46820c8603e1e02af9c1ba1694c6cc637c84bfd655

Analysis

max time kernel
138s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/04/2024, 02:56

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General

Target

2024-04-25_d917020a3d1a49012badf59da9d8b8a6_cryptolocker.exe
Size

64KB
MD5

d917020a3d1a49012badf59da9d8b8a6
SHA1

1dc8b213adefdf34d76819e79181286c12189156
SHA256

9910dbdec1d211cb9da8cf46820c8603e1e02af9c1ba1694c6cc637c84bfd655
SHA512

d43128195d495b6fcba7262fcd5c812455a86171b9eb1d382d4d269d80495ac86e9eaf5e96e2b8bf8344c4bc94009f5a863eec86c33d2cb9b4704adb45a8768b
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293Ci3:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7V

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001224c-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001224c-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2892	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2768	2024-04-25_d917020a3d1a49012badf59da9d8b8a6_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
2768	2024-04-25_d917020a3d1a49012badf59da9d8b8a6_cryptolocker.exe
2892	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2768 wrote to memory of 2892	2768	2024-04-25_d917020a3d1a49012badf59da9d8b8a6_cryptolocker.exe	28
PID 2768 wrote to memory of 2892	2768	2024-04-25_d917020a3d1a49012badf59da9d8b8a6_cryptolocker.exe	28
PID 2768 wrote to memory of 2892	2768	2024-04-25_d917020a3d1a49012badf59da9d8b8a6_cryptolocker.exe	28
PID 2768 wrote to memory of 2892	2768	2024-04-25_d917020a3d1a49012badf59da9d8b8a6_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-25_d917020a3d1a49012badf59da9d8b8a6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-25_d917020a3d1a49012badf59da9d8b8a6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2768
- 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:2892

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
39dfbdc44ecab5054406baa1e8d380e9

SHA1
1e6b12f606106ace304aadace558d0f08483f09b

SHA256
e268c9ff21283c5dc5164bc4a6a271a2b993083efce9790f919dc2657b284d65

SHA512
ac48f6fa4a4281188831e573fc825694eb93c30bb39d5cbc176cb88c7fc787aa4a6965fa41e828ca0a041d94f1710a8a9983366f6138fb6244a71f4fcb019ec6

Download Submit
memory/2768-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2768-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2768-2-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2892-18-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download