kinsing | 23e7e67d8b187e9ff6655784b0adb1af5a43ee629ff962c3ab32b270af690f09

Analysis

max time kernel
149s
max time network
154s
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 17:35

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General

Target

2024-01-25_b16c8a918fca6c8fed9d088a882caa03_cryptolocker.exe
Size

36KB
MD5

b16c8a918fca6c8fed9d088a882caa03
SHA1

a07a976bd7428755098059ee03c90b879d9d5fe5
SHA256

23e7e67d8b187e9ff6655784b0adb1af5a43ee629ff962c3ab32b270af690f09
SHA512

c1b9801dee94f49b20d4a12db632904249a925d39f93a7d3599eccbe5c19d7d72b942d457e78d398b5a601699497bca029024818c0ad47fe90d802d8cfc9a2a3
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEkLv:YGzl5wjRQBBOsP1QMOtEvwDpjgarrkLv

Score

10^/10

kinsing loader

Malware Config

Signatures

Kinsing
Kinsing is a loader written in Golang.
loader kinsing

Detection of CryptoLocker Variants 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1872-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0007000000023228-13.dat	CryptoLocker_rule2
behavioral2/memory/1872-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1872-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x0007000000023228-13.dat	CryptoLocker_set1
behavioral2/memory/1872-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

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:

2024-01-25_b16c8a918fca6c8fed9d088a882caa03_cryptolocker.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Control Panel\International\Geo\Nation	2024-01-25_b16c8a918fca6c8fed9d088a882caa03_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid	Process
4120	asih.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-01-25_b16c8a918fca6c8fed9d088a882caa03_cryptolocker.exe

description	pid	Process	procid_target
PID 1872 wrote to memory of 4120	1872	2024-01-25_b16c8a918fca6c8fed9d088a882caa03_cryptolocker.exe	88
PID 1872 wrote to memory of 4120	1872	2024-01-25_b16c8a918fca6c8fed9d088a882caa03_cryptolocker.exe	88
PID 1872 wrote to memory of 4120	1872	2024-01-25_b16c8a918fca6c8fed9d088a882caa03_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-25_b16c8a918fca6c8fed9d088a882caa03_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_b16c8a918fca6c8fed9d088a882caa03_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1872
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4120

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\asih.exe

Filesize
36KB

MD5
807de70980278fc41e27e178d258553b

SHA1
0872d173fa3edd938b5352180fe1f722f4cb8b90

SHA256
ba80b5bb3ad1c57ad907d207b4625c1fea90f8c0cc3cb06c2b6088380539606f

SHA512
66330fc76322656dfacb990f2f270437608b599b27c9d26b5bb6681c1e9f7dd6df6ceaea0c6d71ba0d4d360784abcea1e8667cc33ec1a498e47bdc2ea6486cfe

Download Submit
memory/1872-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1872-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1872-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1872-3-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/1872-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/4120-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4120-21-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download