20190f0c6e7b7cb54185916d337cd1600850b6af0d24129c68301a735b2e3e70

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20250502-en
resource tags

arch:x64arch:x86image:win10v2004-20250502-enlocale:en-usos:windows10-2004-x64system
submitted
10/05/2025, 06:27

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General

Target

2025-05-10_2b12148289512d53bda7cb3e3ad88e5c_cryptolocker_elex.exe
Size

53KB
MD5

2b12148289512d53bda7cb3e3ad88e5c
SHA1

111bea6ee0e3fddb5bccd1a981edf31d7499e32b
SHA256

20190f0c6e7b7cb54185916d337cd1600850b6af0d24129c68301a735b2e3e70
SHA512

696a5358446fe29e5b8c8eb8320323df8bee26b4333c3822efceeabc53d48e9cb8b10c1237a2b92a655f6e05a59e18d28f7e0af4fabaf92d4e0ce5a6a2cc9d44
SSDEEP

768:b7o/2n1TCraU6GD1oVzX0WcO+wMVm+slAMvcWsUavRwz8l7lLFY:bc/y2ikF0+B2qK8Pq

Score

7^/10

discovery

Malware Config

Signatures

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-1-5-21-3690492401-2005096563-3427069815-1000\Control Panel\International\Geo\Nation	2025-05-10_2b12148289512d53bda7cb3e3ad88e5c_cryptolocker_elex.exe

Executes dropped EXE 1 IoCs

pid	Process
3880	rewok.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rewok.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-05-10_2b12148289512d53bda7cb3e3ad88e5c_cryptolocker_elex.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4456 wrote to memory of 3880	4456	2025-05-10_2b12148289512d53bda7cb3e3ad88e5c_cryptolocker_elex.exe	86
PID 4456 wrote to memory of 3880	4456	2025-05-10_2b12148289512d53bda7cb3e3ad88e5c_cryptolocker_elex.exe	86
PID 4456 wrote to memory of 3880	4456	2025-05-10_2b12148289512d53bda7cb3e3ad88e5c_cryptolocker_elex.exe	86

C:\Users\Admin\AppData\Local\Temp\2025-05-10_2b12148289512d53bda7cb3e3ad88e5c_cryptolocker_elex.exe
"C:\Users\Admin\AppData\Local\Temp\2025-05-10_2b12148289512d53bda7cb3e3ad88e5c_cryptolocker_elex.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4456
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3880

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
53KB

MD5
32e6aea5b46f46a458ab1b49035e57d7

SHA1
75b5c2a4a437d107d898490e87e0c573d26172ad

SHA256
f13e84a1df11c32b50da441809c90fab230a279be694f26b3297d5bc607c5c88

SHA512
56093b54ab5c1984d1d75a6753bc165aef9737e411d541b52aaefbc09ad66b38c980f735820f92b46d5586f9f5d755f050440db77d6bfe7fe77ae8e46f9b1c4a

Download Submit
memory/3880-25-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/4456-0-0x0000000002E90000-0x0000000002E96000-memory.dmp

Filesize
24KB

Download
memory/4456-1-0x0000000002E90000-0x0000000002E96000-memory.dmp

Filesize
24KB

Download
memory/4456-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download