db7d4ed87e3e04dd75ce8a7671dcd8b26453520bf53bfad64f499dfe10d3fd55

Analysis

max time kernel
133s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
28/09/2024, 07:39

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General

Target

2024-09-28_e5f0d1d295439c5a45e711ecc2b349b0_cryptolocker.exe
Size

61KB
MD5

e5f0d1d295439c5a45e711ecc2b349b0
SHA1

0f2cf6775c4a8792b3ab0deeacc521047baf92b9
SHA256

db7d4ed87e3e04dd75ce8a7671dcd8b26453520bf53bfad64f499dfe10d3fd55
SHA512

0c03734a604c5536d31cf2553da84ddc9ad789d62b73791555207648822c1ea1b75ff062c270d1fb7e4d5793a1e88fa76a4236c94815bd6813ae4ab86f8b805a
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x/9lfL+gniDS1:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7c

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	2024-09-28_e5f0d1d295439c5a45e711ecc2b349b0_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
5076	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	2024-09-28_e5f0d1d295439c5a45e711ecc2b349b0_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 5052 wrote to memory of 5076	5052	2024-09-28_e5f0d1d295439c5a45e711ecc2b349b0_cryptolocker.exe	89
PID 5052 wrote to memory of 5076	5052	2024-09-28_e5f0d1d295439c5a45e711ecc2b349b0_cryptolocker.exe	89
PID 5052 wrote to memory of 5076	5052	2024-09-28_e5f0d1d295439c5a45e711ecc2b349b0_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-09-28_e5f0d1d295439c5a45e711ecc2b349b0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-28_e5f0d1d295439c5a45e711ecc2b349b0_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5052
- 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:5076

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=4408,i,7447299413640964517,4240724842020506306,262144 --variations-seed-version --mojo-platform-channel-handle=4360 /prefetch:8
1⤵
PID:64

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
62KB

MD5
499ffb0da99cde122e378b5f2672f181

SHA1
c57405a44366944db39f9943db5565376f91b1d4

SHA256
c7297f690d1dd3f1b7954071391a64e56b04ffb2c56de1b1e78ac1930e92dd42

SHA512
10d9f332f3cf9f35dbb5f990e33eb612826cd50c3ac97ab62e66914c2cbf1096a954c56a9a48712adfcb0577df60929be9354da337dfd54b0efab7f3022170f0

Download Submit
memory/5052-0-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/5052-1-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/5052-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/5076-19-0x00000000020C0000-0x00000000020C6000-memory.dmp

Filesize
24KB

Download