8018de196e243074ea445ca252f8123f35b89887f930bb0c1e6adcc21a989071

Analysis

max time kernel
149s
max time network
140s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
28/01/2024, 15:26

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General

Target

2024-01-28_5d6ddab725e9f4a8667f3f78db7ab7fb_cryptolocker.exe
Size

42KB
MD5

5d6ddab725e9f4a8667f3f78db7ab7fb
SHA1

a41c99d08f313914c76d6c4b1fb51adb0c23a17b
SHA256

8018de196e243074ea445ca252f8123f35b89887f930bb0c1e6adcc21a989071
SHA512

046e020ed88e659cf4173506a513d63839d3e3b2a8d2288cffa98167cf1aeca52d0689fb37d370af0f33bd3dd91cdf83c83cf5a25df441dac5cf78b58e8ad247
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMphei:bc/y2lkF0+Bej

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000122d5-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2492	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2528	2024-01-28_5d6ddab725e9f4a8667f3f78db7ab7fb_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
2528	2024-01-28_5d6ddab725e9f4a8667f3f78db7ab7fb_cryptolocker.exe
2492	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 2492	2528	2024-01-28_5d6ddab725e9f4a8667f3f78db7ab7fb_cryptolocker.exe	28
PID 2528 wrote to memory of 2492	2528	2024-01-28_5d6ddab725e9f4a8667f3f78db7ab7fb_cryptolocker.exe	28
PID 2528 wrote to memory of 2492	2528	2024-01-28_5d6ddab725e9f4a8667f3f78db7ab7fb_cryptolocker.exe	28
PID 2528 wrote to memory of 2492	2528	2024-01-28_5d6ddab725e9f4a8667f3f78db7ab7fb_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-28_5d6ddab725e9f4a8667f3f78db7ab7fb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-28_5d6ddab725e9f4a8667f3f78db7ab7fb_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2528
- 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:2492

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
43KB

MD5
95d8f7b03541230dbb344a547a21eacc

SHA1
550f3386803e5e80aff0005a94fe2bf036d344f0

SHA256
0233d2e414be6fff933013f48a3a3ed97f153310ccfe2265282867a11a0001be

SHA512
4ddabdd9de751b1219ae458f703a9d4d0255ec1f0caa27da363a2642caacd50f199f84b17f264992f7cda41548b835c99be675af4092f33ab9d450c9d721409b

Download Submit
memory/2492-18-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/2528-0-0x00000000001F0000-0x00000000001F6000-memory.dmp

Filesize
24KB

Download
memory/2528-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2528-8-0x00000000001F0000-0x00000000001F6000-memory.dmp

Filesize
24KB

Download