kinsing | 4d43da5733c7fab938d1d95a8fcfaab37da6c9206a92d8c57cdb9a402e02ae91

Analysis

max time kernel
148s
max time network
150s
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 15:55

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General

Target

2024-01-25_ea55caa34f65fb5d32d43d2aa742b049_cryptolocker.exe
Size

97KB
MD5

ea55caa34f65fb5d32d43d2aa742b049
SHA1

49f9716f772dc07b6107f61d7bd293f97ba736fe
SHA256

4d43da5733c7fab938d1d95a8fcfaab37da6c9206a92d8c57cdb9a402e02ae91
SHA512

cc62b2d3c24f839832111de42c50fc9a9f7d99caf2eafdbbad8cea4d0caae8cb07b9b7c592bc42c48671b390cf8d5847c3273598214a15a2ff13b17090260939
SSDEEP

1536:26QFElP6n+gBQMOtEvwDpjQGYQbN/PKwNCJz:26a+2OtEvwDpjtzi

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_ea55caa34f65fb5d32d43d2aa742b049_cryptolocker.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_ea55caa34f65fb5d32d43d2aa742b049_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

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

System Information Discovery
T1082

pid	process
352	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-01-25_ea55caa34f65fb5d32d43d2aa742b049_cryptolocker.exe

description	pid	process	target process
PID 2096 wrote to memory of 352	2096	2024-01-25_ea55caa34f65fb5d32d43d2aa742b049_cryptolocker.exe	asih.exe
PID 2096 wrote to memory of 352	2096	2024-01-25_ea55caa34f65fb5d32d43d2aa742b049_cryptolocker.exe	asih.exe
PID 2096 wrote to memory of 352	2096	2024-01-25_ea55caa34f65fb5d32d43d2aa742b049_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-01-25_ea55caa34f65fb5d32d43d2aa742b049_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_ea55caa34f65fb5d32d43d2aa742b049_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2096

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:352

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
97KB

MD5
d0cb2c4567e1dfb213ab1c262483d639

SHA1
bdeea85c81eabdbf66d7913e551b901af7c4fc52

SHA256
31aa8fc507ea3ac1129e90295d9c9e252ec4b67184b3ec9d3e6ad724497f560b

SHA512
6790225bf8d306e7f2fe457cbdb4629c302c1c4105191056819ca5280f4a10d72e26b1655bbd6aff9e4fb9d4ae7d01ca28494167661038723085bb258eb70e35

Download Submit
memory/352-18-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/352-17-0x0000000000640000-0x0000000000646000-memory.dmp

Filesize
24KB

Download
memory/2096-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2096-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2096-2-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download