644f061fb48692a394ff97fc6fd30296c96e4286cdd19b05d23e1e733231cae1

Analysis

max time kernel
131s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01/10/2024, 03:32

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General

Target

2024-10-01_1e31c4353ad62462065b2c9824d39b05_cryptolocker.exe
Size

70KB
MD5

1e31c4353ad62462065b2c9824d39b05
SHA1

a1e5fe2967901554dfc3a28697298b19f1eb194c
SHA256

644f061fb48692a394ff97fc6fd30296c96e4286cdd19b05d23e1e733231cae1
SHA512

d4da578776ca7824b4f15c51941613f8fb229b298106fe821ee4bb1ea32e865191aa17ca0e0f6a31b24eaafc1c76a630fa802da7d51a88c158ce779fe77a8413
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293vaRLEQ:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7I

Score

7^/10

discovery

Malware Config

Signatures

Checks computer location settings 2 TTPs 2 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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	2024-10-01_1e31c4353ad62462065b2c9824d39b05_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
1536	hurok.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	2024-10-01_1e31c4353ad62462065b2c9824d39b05_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hurok.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3004 wrote to memory of 1536	3004	2024-10-01_1e31c4353ad62462065b2c9824d39b05_cryptolocker.exe	89
PID 3004 wrote to memory of 1536	3004	2024-10-01_1e31c4353ad62462065b2c9824d39b05_cryptolocker.exe	89
PID 3004 wrote to memory of 1536	3004	2024-10-01_1e31c4353ad62462065b2c9824d39b05_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-10-01_1e31c4353ad62462065b2c9824d39b05_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-01_1e31c4353ad62462065b2c9824d39b05_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3004
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1536

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4356,i,16316361669272684588,6171287487746154806,262144 --variations-seed-version --mojo-platform-channel-handle=4328 /prefetch:8
1⤵
PID:3184

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

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\hurok.exe

Filesize
70KB

MD5
b925daf34958e6550b372f876f845dea

SHA1
20e1302845402798e7e80744d14c7e7c23111a7a

SHA256
ef005d0cc1196fccdcf24cd5d0ff08b968e01159fa1bb33e4e27e1f5d8ca0ed1

SHA512
8e37beba4a4a17e5cc1cdb07de991b807207ff57666a0e5e558d1e419f32b5d46f3a22a27c7171dbbb1ebf09a8c9a5c1e8e5fa9c0c9f50c7f1f0654fac6f420b

Download Submit
memory/1536-19-0x0000000000720000-0x0000000000726000-memory.dmp

Filesize
24KB

Download
memory/3004-0-0x0000000002130000-0x0000000002136000-memory.dmp

Filesize
24KB

Download
memory/3004-1-0x0000000002130000-0x0000000002136000-memory.dmp

Filesize
24KB

Download
memory/3004-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download