02c073271e52a32d0dd195cddf65ba1648376d7badcb7b331343c8cc3305e671

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
01/02/2024, 23:31

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General

Target

2024-02-01_be0a45bc4eb66a157c79d8ca25c6e130_cryptolocker.exe
Size

41KB
MD5

be0a45bc4eb66a157c79d8ca25c6e130
SHA1

6c3196a6f6e2fbc84baddc6917e910538622d5d5
SHA256

02c073271e52a32d0dd195cddf65ba1648376d7badcb7b331343c8cc3305e671
SHA512

9c3e09d5f82b5f0ec79b1f8e81a87b00f29d66c40fe5cfb85b34feea94aa617527b90dc3ccf4c86b10b94257b89512c3ad57a7f8a2efec3a156df30340d58a8f
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMRqyQ:bc/y2lkF0+Bjv

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023108-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-02-01_be0a45bc4eb66a157c79d8ca25c6e130_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4524	rewok.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4496 wrote to memory of 4524	4496	2024-02-01_be0a45bc4eb66a157c79d8ca25c6e130_cryptolocker.exe	84
PID 4496 wrote to memory of 4524	4496	2024-02-01_be0a45bc4eb66a157c79d8ca25c6e130_cryptolocker.exe	84
PID 4496 wrote to memory of 4524	4496	2024-02-01_be0a45bc4eb66a157c79d8ca25c6e130_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-01_be0a45bc4eb66a157c79d8ca25c6e130_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-01_be0a45bc4eb66a157c79d8ca25c6e130_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4496
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  PID:4524

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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
41KB

MD5
6a53207bdb75b1bc1054651db4b68580

SHA1
b1b87e433e3c3f388dcff147bc63d54cc22976f6

SHA256
c2244b8853b997e83a03ec6da099fa7eef3bc7a3686f4d492a6cb7cfeb07304e

SHA512
969fcaf2d33e8eedfa380a4123ce7a9199f2bc5b097cb0a52760f7510fde013b0444c440dd13619d75740e0d9b361f17bbc6c567d7ca8f9b250ae6a186de0aa4

Download Submit
memory/4496-0-0x00000000022D0000-0x00000000022D6000-memory.dmp

Filesize
24KB

Download
memory/4496-1-0x00000000022D0000-0x00000000022D6000-memory.dmp

Filesize
24KB

Download
memory/4496-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4524-20-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download