1e513980e45d1719bb7878346e77b4116fe02c21ab6adacdee4e86d21147e881

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19/02/2024, 17:26

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General

Target

2024-02-19_3038bdc777ae52d8db37e1496a949fcf_cryptolocker.exe
Size

30KB
MD5

3038bdc777ae52d8db37e1496a949fcf
SHA1

14d71fb98af168ccd3974c9c75aa3d7e6edc3609
SHA256

1e513980e45d1719bb7878346e77b4116fe02c21ab6adacdee4e86d21147e881
SHA512

a1a6ed1dc26dce050b97e8884ff7dabc8b031274801a0ac3e8fc99ccfd7dec93bf06ae60c82c2ee3f1d4c5d0d3c541ff5679882959f2c2a61d2b307bec5f2966
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9h:b7o/2n1TCraU6GD1a4Xt9h

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023217-12.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-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	2024-02-19_3038bdc777ae52d8db37e1496a949fcf_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4688	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 1644 wrote to memory of 4688	1644	2024-02-19_3038bdc777ae52d8db37e1496a949fcf_cryptolocker.exe	84
PID 1644 wrote to memory of 4688	1644	2024-02-19_3038bdc777ae52d8db37e1496a949fcf_cryptolocker.exe	84
PID 1644 wrote to memory of 4688	1644	2024-02-19_3038bdc777ae52d8db37e1496a949fcf_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-19_3038bdc777ae52d8db37e1496a949fcf_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_3038bdc777ae52d8db37e1496a949fcf_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1644
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  PID:4688

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
31KB

MD5
ca4a9ba9e46cee72382a95ad35117031

SHA1
db796a8dc5b3c6e8246b63f7d744365d28bb0fa6

SHA256
5d21ff1789dfffd5351ff0cd974f90ed758c7a227f16ff979516a4a7484fb500

SHA512
8c6771c9d0eaf12cab285f32bb5b77002244487910771947361b808e810c0fdfbc66d2f725f55e6dc3de1a01bdcc3eab19e99d3e3ecc2f16225967ed52087388

Download Submit
memory/1644-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/1644-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/1644-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4688-25-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download