5d3afdc066382c7f03a9a3218985ac6db4d5fce9acb50440f1409e004552e485

Analysis

max time kernel
0s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06/06/2024, 23:25

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General

Target

2024-06-06_44f70acf5192f4184e1e958a4d6f79a0_cryptolocker.exe
Size

39KB
MD5

44f70acf5192f4184e1e958a4d6f79a0
SHA1

d16cd86e9087c07b4264182d91bfbbfe8a5f5d94
SHA256

5d3afdc066382c7f03a9a3218985ac6db4d5fce9acb50440f1409e004552e485
SHA512

ce923aa2c36b8a7f9673d90528142f93cd23a3cadc296c4b3df09a9991c3ef215b2cde3b4b307c810b0181eed129acd3f2b5e466ea135c1fce1c004bd2c48c56
SSDEEP

768:b7o/2n1TCraU6GD1a4Xt9bRU6zA6o36mr:bc/y2lLRU6zA6qr

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014230-22.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2380	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2676	2024-06-06_44f70acf5192f4184e1e958a4d6f79a0_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
2676	2024-06-06_44f70acf5192f4184e1e958a4d6f79a0_cryptolocker.exe
2380	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2676 wrote to memory of 2380	2676	2024-06-06_44f70acf5192f4184e1e958a4d6f79a0_cryptolocker.exe	28
PID 2676 wrote to memory of 2380	2676	2024-06-06_44f70acf5192f4184e1e958a4d6f79a0_cryptolocker.exe	28
PID 2676 wrote to memory of 2380	2676	2024-06-06_44f70acf5192f4184e1e958a4d6f79a0_cryptolocker.exe	28
PID 2676 wrote to memory of 2380	2676	2024-06-06_44f70acf5192f4184e1e958a4d6f79a0_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-06_44f70acf5192f4184e1e958a4d6f79a0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-06_44f70acf5192f4184e1e958a4d6f79a0_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2676
- 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:2380

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

C:\Users\Admin\AppData\Local\Temp\rewok.exe

Filesize
39KB

MD5
d020adf55016dc24d840746895bb76c5

SHA1
7a113a115e39bad7461de05e06079ace743227b0

SHA256
fbfcce28ddfbf6e011588711f5dbfec4203ca3154654de8eac6572397dbff1db

SHA512
f040ffaf7292b991fa3122ea47255da73073c7aa68271e034cfef941f0351e6d9eb37a01efc6c57a09023535c1b80fd34eb4ec3b6553de08b775de607095e5aa

Download Submit
memory/2380-23-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2676-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2676-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2676-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download