e042ade734923d7d0e316b87bedea44c05cf0bdca350e335a26b68e8d040fc55

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28/05/2024, 15:33

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General

Target

2024-05-28_6bc46e60e63267c364c5b6cdbd3da61f_cryptolocker.exe
Size

38KB
MD5

6bc46e60e63267c364c5b6cdbd3da61f
SHA1

bb04f872ffa54227d379b9fb1abcd7ee63bbb42b
SHA256

e042ade734923d7d0e316b87bedea44c05cf0bdca350e335a26b68e8d040fc55
SHA512

8de3dd1bd5e6a00d03ed7e0e636d183180db9eaf34b32987f91415c4cde39eb40d6c285aec9a01b5764863c1385512923d23783cf2bb50a1cdf80b45d3f8f74d
SSDEEP

768:b7o/2n1TCraU6GD1a4Xt9bRU6zA6o36mrq:bc/y2lLRU6zA6qu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001232e-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2760	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2924	2024-05-28_6bc46e60e63267c364c5b6cdbd3da61f_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
2924	2024-05-28_6bc46e60e63267c364c5b6cdbd3da61f_cryptolocker.exe
2760	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2924 wrote to memory of 2760	2924	2024-05-28_6bc46e60e63267c364c5b6cdbd3da61f_cryptolocker.exe	28
PID 2924 wrote to memory of 2760	2924	2024-05-28_6bc46e60e63267c364c5b6cdbd3da61f_cryptolocker.exe	28
PID 2924 wrote to memory of 2760	2924	2024-05-28_6bc46e60e63267c364c5b6cdbd3da61f_cryptolocker.exe	28
PID 2924 wrote to memory of 2760	2924	2024-05-28_6bc46e60e63267c364c5b6cdbd3da61f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-28_6bc46e60e63267c364c5b6cdbd3da61f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-28_6bc46e60e63267c364c5b6cdbd3da61f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2924
- 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:2760

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
38KB

MD5
6812946fc78d8f7313ad8089325acf88

SHA1
d586c9172f32f7e3d06877504a3c09d7ed4e5592

SHA256
4e71d4e93a3774748bf535f29331b674b6f91bd2e2e181c888d5b7d39722da51

SHA512
16422c7cd0e62ede48d316a07f1929a145a521545f625965b79aa16070dd3f727b310ee176c6211f240fa80b4aecca103a20aba30a0bff3c87da056c8c7d92d6

Download Submit
memory/2760-23-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2924-8-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/2924-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2924-0-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download