9ecbf28720a944bdd3f3c20cdb3f4da7f40da903b651be520348e01a8efa2504

Analysis

max time kernel
141s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
13-04-2024 17:42

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General

Target

kayflock-beta/kayflock.exe
Size

253KB
MD5

2ea6211ab19482dddf2b32fdeddfe409
SHA1

bfb9ab42d59ec933d1ebb8674bc697faaa99a52e
SHA256

7a25def99b85f8486606ec7eb4d52395308afcc930e7b2df23897022b1d6baf1
SHA512

e54d8b6db035ab9274c3f3a00474cf19d1543eb19f1c8eb89e11e33ddc6d675648201a70f495e6ddc0da4d71f17f01e3f6d77d5264effe1f0c46877379933bae
SSDEEP

3072:yczkitvo4BpYN/6mBPry8TXROLdW5m4mURh9OOGm0kqxidvA8qY:yA4NCmBPry/N2VOOPwxU1q

Score

7^/10

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

Processes:

kayflock.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	kayflock.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

kayflock.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	kayflock.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	kayflock.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemVersion	kayflock.exe

C:\Users\Admin\AppData\Local\Temp\kayflock-beta\kayflock.exe
"C:\Users\Admin\AppData\Local\Temp\kayflock-beta\kayflock.exe"
1⤵
- Checks computer location settings
- Enumerates system info in registry
PID:4296

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 --no-appcompat-clear --mojo-platform-channel-handle=1316 --field-trial-handle=2280,i,11703952675008463361,17436195144517971517,262144 --variations-seed-version /prefetch:8
1⤵
PID:3740

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

memory/4296-0-0x00007FFE6E460000-0x00007FFE6E95E000-memory.dmp

Filesize
5.0MB

Download
memory/4296-1-0x00007FFE6E460000-0x00007FFE6E95E000-memory.dmp

Filesize
5.0MB

Download