9ecbf28720a944bdd3f3c20cdb3f4da7f40da903b651be520348e01a8efa2504

Analysis

max time kernel
141s
max time network
151s
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/packages/ranks/write.exe
Size

11KB
MD5

b947cca7f485f6c1156f4d02e8c9874f
SHA1

9f184e48f17f104c6a476687e8e760a65a0326b5
SHA256

a70d52eda892edc073932b462cc367cdbfbace3f4196857d8d4fa869a13de792
SHA512

28c6ff32bc94aad8b201e469f854dde32cad9eb2e7a80ed858ac2ff99648312cecca06918bce96e8d905d52d5ebee076bd08d957f7933602c0c79d93ead20ee3
SSDEEP

192:ZV89t7hglDCS8O3GbXdYFWihWxu/sWGOW:ZVM7hceSP3IXioxu/sWGOW

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:

write.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation write.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

wordpad.exe

pid process

4112 wordpad.exe
4112 wordpad.exe
4112 wordpad.exe
4112 wordpad.exe
4112 wordpad.exe
Suspicious use of WriteProcessMemory 2 IoCs

Processes:

write.exe

description pid process target process

PID 4996 wrote to memory of 4112 4996 write.exe wordpad.exe
PID 4996 wrote to memory of 4112 4996 write.exe wordpad.exe

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

pid	process
4112	wordpad.exe
4112	wordpad.exe
4112	wordpad.exe
4112	wordpad.exe
4112	wordpad.exe

description	pid	process	target process
PID 4996 wrote to memory of 4112	4996	write.exe	wordpad.exe
PID 4996 wrote to memory of 4112	4996	write.exe	wordpad.exe

C:\Users\Admin\AppData\Local\Temp\kayflock-beta\packages\ranks\write.exe
"C:\Users\Admin\AppData\Local\Temp\kayflock-beta\packages\ranks\write.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4996

C:\Program Files\Windows NT\Accessories\wordpad.exe
"C:\Program Files\Windows NT\Accessories\wordpad.exe"
2⤵
- Suspicious use of SetWindowsHookEx
PID:4112

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:1952

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=3996 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
1⤵
PID:5524

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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