kinsing | d20f1fb84fc4293866e27461f65cbbe085e03bede03df5c633c0b43b13266848

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 15:34

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General

Target

2024-01-25_5b96ff759a2ffefb0926e2abca1997ad_cryptolocker.exe
Size

61KB
MD5

5b96ff759a2ffefb0926e2abca1997ad
SHA1

833e537d8d1747d8e18ac3ea56a4999eba891359
SHA256

d20f1fb84fc4293866e27461f65cbbe085e03bede03df5c633c0b43b13266848
SHA512

a0b1afbddc3e5a4e63359f036a3a2512d8fe1106d1c90e6bc73cbc1126eb7c85163da654e65bc71cb1b92711f19869e5f82f9b7cfc1d17bd030def59e0b0fe9a
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVCbmhk1:V6a+pOtEvwDpjvk

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\asih.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\asih.exe	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_5b96ff759a2ffefb0926e2abca1997ad_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	2024-01-25_5b96ff759a2ffefb0926e2abca1997ad_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

3952 asih.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3952	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-01-25_5b96ff759a2ffefb0926e2abca1997ad_cryptolocker.exe

description	pid	process	target process
PID 1276 wrote to memory of 3952	1276	2024-01-25_5b96ff759a2ffefb0926e2abca1997ad_cryptolocker.exe	asih.exe
PID 1276 wrote to memory of 3952	1276	2024-01-25_5b96ff759a2ffefb0926e2abca1997ad_cryptolocker.exe	asih.exe
PID 1276 wrote to memory of 3952	1276	2024-01-25_5b96ff759a2ffefb0926e2abca1997ad_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-01-25_5b96ff759a2ffefb0926e2abca1997ad_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_5b96ff759a2ffefb0926e2abca1997ad_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1276

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:3952

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
61KB

MD5
ec6eb6671b702719e56e2ff4525d53fc

SHA1
d6ab9640f46f5786ebb2b09bda7fd44f8a3edf32

SHA256
52dd2abf7787bc48fa4bbbfa31e603ba0de6eee2e6e7fcb5a40fbe22a48e417d

SHA512
c9a5102b0e2803abf3d2ebe9c1079c292db322d44d424a8a191ff8b94a22983e6cdd381c115a6901955fbd552b400263a0f04426428a5f93afb871eea919695f

Download Submit
memory/1276-0-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/1276-1-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/1276-2-0x0000000000820000-0x0000000000826000-memory.dmp

Filesize
24KB

Download
memory/3952-17-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/3952-19-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download