8d0f68f90b6d16af2941309acb06b717738043c50c8583f461a422e6cf0c7248

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25/01/2024, 00:49

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General

Target

2024-01-25_7268140635252b0a3d446e75ef403bdd_cryptolocker.exe
Size

27KB
MD5

7268140635252b0a3d446e75ef403bdd
SHA1

19a27087d92294e17488e9ddb8a393524c1d4324
SHA256

8d0f68f90b6d16af2941309acb06b717738043c50c8583f461a422e6cf0c7248
SHA512

05c705fc6a38d3b754c6eb7c35a19f0a961efb3b21413f79a73c86a69c3fe42bdf6808bae92baf31ed8f2d36f1da1953ee4bce3b982fc04d297bf1fb01042b6d
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzo7:b7o/2n1TCraU6GD1a4X8

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001225a-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2712	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2536	2024-01-25_7268140635252b0a3d446e75ef403bdd_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
2536	2024-01-25_7268140635252b0a3d446e75ef403bdd_cryptolocker.exe
2712	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2536 wrote to memory of 2712	2536	2024-01-25_7268140635252b0a3d446e75ef403bdd_cryptolocker.exe	28
PID 2536 wrote to memory of 2712	2536	2024-01-25_7268140635252b0a3d446e75ef403bdd_cryptolocker.exe	28
PID 2536 wrote to memory of 2712	2536	2024-01-25_7268140635252b0a3d446e75ef403bdd_cryptolocker.exe	28
PID 2536 wrote to memory of 2712	2536	2024-01-25_7268140635252b0a3d446e75ef403bdd_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-25_7268140635252b0a3d446e75ef403bdd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_7268140635252b0a3d446e75ef403bdd_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2536
- 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:2712

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
27KB

MD5
f03e1072205b1e781e7e4bdeb3e09b4a

SHA1
a460e042773f92494741720f558495b508306b56

SHA256
7679283f1b4530708d3546e944144ea822d3246ce62932b42b5ca6b17bcf2e4b

SHA512
d0776725a8c75ec2b3912e724498fd11b93dadbbbc86e0e289a404cf48cd114f0161e619e6e9954daaafdb21ae3702198a47df965950662f39144f4cf32ba11a

Download Submit
memory/2536-0-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/2536-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2536-2-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download