1f29bf90d7bb445f3dbe78e852ae4a3179a97784bbce0c3024a34602f88cf7ef

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
14/02/2024, 17:52

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General

Target

2024-02-14_ff08264fcc17b6c6a236a2b3d4665559_cryptolocker.exe
Size

31KB
MD5

ff08264fcc17b6c6a236a2b3d4665559
SHA1

2b9ef3266c3132adc0849eb186c71e5fd405a541
SHA256

1f29bf90d7bb445f3dbe78e852ae4a3179a97784bbce0c3024a34602f88cf7ef
SHA512

baeb144763c6c93c786d922f2da30a9a31082d02c7fd7392132d5979eec105b9d6086aacff01f25ec9f0146f88bea4338cf65e106340d4bde2ac1589f978c5e7
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9R0a2yW:b7o/2n1TCraU6GD1a4Xt9R0a7W

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00090000000155ed-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2388	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2232	2024-02-14_ff08264fcc17b6c6a236a2b3d4665559_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
2232	2024-02-14_ff08264fcc17b6c6a236a2b3d4665559_cryptolocker.exe
2388	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 2388	2232	2024-02-14_ff08264fcc17b6c6a236a2b3d4665559_cryptolocker.exe	28
PID 2232 wrote to memory of 2388	2232	2024-02-14_ff08264fcc17b6c6a236a2b3d4665559_cryptolocker.exe	28
PID 2232 wrote to memory of 2388	2232	2024-02-14_ff08264fcc17b6c6a236a2b3d4665559_cryptolocker.exe	28
PID 2232 wrote to memory of 2388	2232	2024-02-14_ff08264fcc17b6c6a236a2b3d4665559_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-14_ff08264fcc17b6c6a236a2b3d4665559_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_ff08264fcc17b6c6a236a2b3d4665559_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2388

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\rewok.exe

Filesize
31KB

MD5
721b43edb80dd521ce074e6cf3234361

SHA1
66f11a903d927470aa98b8cbf4e36735f1716079

SHA256
97d9e473d5b638279025dd8c8a76b3d46694dd86595d1588a238283ee084684e

SHA512
b786de3043e48bd5085b78f96754dfdfc6b99be0703b9bb847558c8f2c3e53cdbc1a685d9826d846a1d35429a5672127bde0cc5f8f1ac557a7977785754c7e4c

Download Submit
memory/2232-0-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2232-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2232-8-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2388-17-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download