kinsing | 30a0be7e3e1e085ec075576119192555b8d8cf91d041474fcaa52e339b28c1ec

Analysis

max time kernel
88s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
25-01-2024 15:44

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General

Target

2024-01-25_9816dc8431e27f0c5de41c175df76993_cryptolocker.exe
Size

62KB
MD5

9816dc8431e27f0c5de41c175df76993
SHA1

d91c0727710d9d2531aee2c8b3547390d0169f43
SHA256

30a0be7e3e1e085ec075576119192555b8d8cf91d041474fcaa52e339b28c1ec
SHA512

f9a278e5cc83ddc87910427066f65e55adbd990ed96eb6b42c3fe6a2f456748731fec7e031f429f38f431c0e5121173389c53e5671697fc5a6045696fb1b25d2
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF299Q:aq7tdgI2MyzNORQtOflIwoHNV2XBFV74

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_9816dc8431e27f0c5de41c175df76993_cryptolocker.exehurok.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-01-25_9816dc8431e27f0c5de41c175df76993_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

Processes:

hurok.exe

pid process

4960 hurok.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4960	hurok.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-01-25_9816dc8431e27f0c5de41c175df76993_cryptolocker.exe

description	pid	process	target process
PID 3032 wrote to memory of 4960	3032	2024-01-25_9816dc8431e27f0c5de41c175df76993_cryptolocker.exe	hurok.exe
PID 3032 wrote to memory of 4960	3032	2024-01-25_9816dc8431e27f0c5de41c175df76993_cryptolocker.exe	hurok.exe
PID 3032 wrote to memory of 4960	3032	2024-01-25_9816dc8431e27f0c5de41c175df76993_cryptolocker.exe	hurok.exe

C:\Users\Admin\AppData\Local\Temp\2024-01-25_9816dc8431e27f0c5de41c175df76993_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_9816dc8431e27f0c5de41c175df76993_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3032

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:4960

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

C:\Users\Admin\AppData\Local\Temp\hurok.exe
Filesize
62KB

MD5
8c00cefbde14e300e47b8b37fea5e404

SHA1
452e06ad0ad2caf4763f05331987da187bc20c20

SHA256
826acae144fe1346900df317abb1c38e631989c1f3ae3209b03c88eaeea18e91

SHA512
b652f737beaacb78010380719a469eb62b61dee6baaf86afaf91bf40d992769815ae5b46031a74154efe4374d7701d4c853a6e051616b751341ba444382488b4

Download Submit
memory/3032-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3032-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3032-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4960-24-0x0000000001FC0000-0x0000000001FC6000-memory.dmp

Filesize
24KB

Download