kinsing | a073fb995b995e8ebc9a1756c2e28b14d6042b45e9bfabccd4f0f9ed37616580

Analysis

max time kernel
142s
max time network
150s
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 17:54

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General

Target

2024-01-25_7521e3e9f6ad6fa66906b4d0d50b96a1_cryptolocker.exe
Size

121KB
MD5

7521e3e9f6ad6fa66906b4d0d50b96a1
SHA1

54ce844fc1252235bdb036c40883c27d2b34b4c0
SHA256

a073fb995b995e8ebc9a1756c2e28b14d6042b45e9bfabccd4f0f9ed37616580
SHA512

19fc1057a16bc7ceceda9eebdbfb4fdb339e7a3012fc9c7c6722c1baa5b9c8c4b223f22be78bfd6bb7d0b0004d6ade7a610996036d9091dddefd6f8782580a54
SSDEEP

768:gUQz7yVEhs9+4T/1bytOOtEvwDpjNbZ7uyA36S7MpxRIIXVe3mU9TYwlOBTK0:gUj+AIMOtEvwDpjNbwQEIPlemUhYa0

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\misid.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\misid.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_7521e3e9f6ad6fa66906b4d0d50b96a1_cryptolocker.exemisid.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\International\Geo\Nation	2024-01-25_7521e3e9f6ad6fa66906b4d0d50b96a1_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

4332 misid.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4332	misid.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-01-25_7521e3e9f6ad6fa66906b4d0d50b96a1_cryptolocker.exe

description	pid	process	target process
PID 5004 wrote to memory of 4332	5004	2024-01-25_7521e3e9f6ad6fa66906b4d0d50b96a1_cryptolocker.exe	misid.exe
PID 5004 wrote to memory of 4332	5004	2024-01-25_7521e3e9f6ad6fa66906b4d0d50b96a1_cryptolocker.exe	misid.exe
PID 5004 wrote to memory of 4332	5004	2024-01-25_7521e3e9f6ad6fa66906b4d0d50b96a1_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-01-25_7521e3e9f6ad6fa66906b4d0d50b96a1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_7521e3e9f6ad6fa66906b4d0d50b96a1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5004

C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
2⤵
- Checks computer location settings
- Executes dropped EXE
PID:4332

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\misid.exe

Filesize
121KB

MD5
df24eee5830432ff83638d6af46f23e0

SHA1
e3249dd7ad9fa934dde5d23c5926c4dd8fb9dfd1

SHA256
7ac7fc45d0c4ca8eb1dca7b9a754bf630e825a9dec7113244ed29efdec715513

SHA512
444b0aff58d1cf2369bd743f019953b62b48408aeb3913155d8621b454c77f543242d58e365a926581ba98e2721b8fd840ad42373046e5836f3433b5dd679f30

Download Submit
memory/4332-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4332-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/5004-0-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/5004-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/5004-2-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download