kinsing | 3d34edd71fd050fcb6b9b108c09db6e10276e3343e5567e5a73ae9f9da2cd5eb

Analysis

max time kernel
88s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25-01-2024 17:54

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General

Target

2024-01-25_764acf9f4b4ebd60ca8c2444ed1ee2b0_cryptolocker.exe
Size

60KB
MD5

764acf9f4b4ebd60ca8c2444ed1ee2b0
SHA1

2278b07d4a17498ecaea4a379348d357243cd1b6
SHA256

3d34edd71fd050fcb6b9b108c09db6e10276e3343e5567e5a73ae9f9da2cd5eb
SHA512

cf0ee89d514dc1ded5ccf4ab611f9926eb3de9259b455475be536e90227698bd690462c324b7f5c8564be18cdb830d39f5677a6eb3aca5fc71a287d4ab1dd0e3
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x/9lfL+gniDS4:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7p

Score

10^/10

kinsing loader

Malware Config

Signatures

Kinsing
Kinsing is a loader written in Golang.
loader kinsing

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\hurok.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\hurok.exe	CryptoLocker_set1

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

Processes:

2024-01-25_764acf9f4b4ebd60ca8c2444ed1ee2b0_cryptolocker.exehurok.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	2024-01-25_764acf9f4b4ebd60ca8c2444ed1ee2b0_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

Processes:

hurok.exe

pid process

4972 hurok.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4972	hurok.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-01-25_764acf9f4b4ebd60ca8c2444ed1ee2b0_cryptolocker.exe

description	pid	process	target process
PID 4864 wrote to memory of 4972	4864	2024-01-25_764acf9f4b4ebd60ca8c2444ed1ee2b0_cryptolocker.exe	hurok.exe
PID 4864 wrote to memory of 4972	4864	2024-01-25_764acf9f4b4ebd60ca8c2444ed1ee2b0_cryptolocker.exe	hurok.exe
PID 4864 wrote to memory of 4972	4864	2024-01-25_764acf9f4b4ebd60ca8c2444ed1ee2b0_cryptolocker.exe	hurok.exe

C:\Users\Admin\AppData\Local\Temp\2024-01-25_764acf9f4b4ebd60ca8c2444ed1ee2b0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_764acf9f4b4ebd60ca8c2444ed1ee2b0_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4864
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4972

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

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Downloads

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

Filesize
61KB

MD5
629b9077e03d3493b711ba37999fc548

SHA1
03fa0907c1dddab23e1f9804c3c3d85574735cff

SHA256
c48e389f08749b33df7b7d88cc8995e07e77209bbde84355b5439e2a41606ddf

SHA512
817dc3966342868d6b20239a13d42756d1ab91547ddfc0e430fa1bb8510754004a999c4c4936c1cfa7c3508ad1a4fae48aba323413a755226cab3087740a3172

Download Submit
memory/4864-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4864-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4864-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4972-22-0x00000000020C0000-0x00000000020C6000-memory.dmp

Filesize
24KB

Download