kinsing | 068142d968cc188ce41162d9c1520a5aaf1e9d27842ba214df7978d56d53a2df

Analysis

max time kernel
148s
max time network
149s
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 17:41

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General

Target

2024-01-25_f82526b696aa6a73b22c9000cec74071_cryptolocker.exe
Size

69KB
MD5

f82526b696aa6a73b22c9000cec74071
SHA1

dcaeab4289ef0b106aeb871a4f8e7c6bd59c99b5
SHA256

068142d968cc188ce41162d9c1520a5aaf1e9d27842ba214df7978d56d53a2df
SHA512

8553e6a325a77cd72f6d7d105ba0a5af1370558c23841f96d469b78527b926113ea6338e17ddd3557b56384032e1ec71a0ff01d78f26a49a3747d93ccbdc6e53
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUtbgz:DW60sllyWOtEvwDpjwF85a

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/3292-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
C:\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2
behavioral2/memory/3292-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3292-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
C:\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1
behavioral2/memory/3292-17-0x0000000000500000-0x000000000050B000-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_f82526b696aa6a73b22c9000cec74071_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	2024-01-25_f82526b696aa6a73b22c9000cec74071_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

4072 asih.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4072	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-01-25_f82526b696aa6a73b22c9000cec74071_cryptolocker.exe

description	pid	process	target process
PID 3292 wrote to memory of 4072	3292	2024-01-25_f82526b696aa6a73b22c9000cec74071_cryptolocker.exe	asih.exe
PID 3292 wrote to memory of 4072	3292	2024-01-25_f82526b696aa6a73b22c9000cec74071_cryptolocker.exe	asih.exe
PID 3292 wrote to memory of 4072	3292	2024-01-25_f82526b696aa6a73b22c9000cec74071_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-01-25_f82526b696aa6a73b22c9000cec74071_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_f82526b696aa6a73b22c9000cec74071_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3292

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:4072

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
69KB

MD5
ff757d1c6350a10100f85b84f75a809a

SHA1
013c867d11fddf50e9ae39c8424363b6e84c4eb4

SHA256
bc3ef569f1687fd0fb42e1645f07df027057619f2759e4017ff4a4fc7e0fa8cb

SHA512
1a0d92da7a62693e1effeec683089bd28848668bd72374aa617d2e16d7dc5e5b19a8eabf05350fae043409daf4b7a3d2ee96656395b038db313b6f091dc340f9

Download Submit
memory/3292-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3292-1-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download
memory/3292-2-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download
memory/3292-3-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/3292-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/4072-19-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/4072-21-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download