kinsing | 4d46d57f5ada99d9fe1d20d83a9d08fe6e3d8bf90770e73eb515a422509eed1f

Analysis

max time kernel
144s
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 15:47

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General

Target

2024-01-25_b7892abc1323601cff2b5c28a62c60a5_cryptolocker.exe
Size

62KB
MD5

b7892abc1323601cff2b5c28a62c60a5
SHA1

6070e974a6ffe48cd5ed402ce284c67d1dd66a2f
SHA256

4d46d57f5ada99d9fe1d20d83a9d08fe6e3d8bf90770e73eb515a422509eed1f
SHA512

9a9057314b85edccc6b1a785428f2b3203658f52925b88469df44f408cab8d38da753a5d2b37127b414173fb87e9ad48da65245fec398ee716190b208ac28030
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGEM+:6j+1NMOtEvwDpjr8ox8UDEz

Score

10^/10

kinsing loader

Malware Config

Signatures

Kinsing
Kinsing is a loader written in Golang.
loader kinsing

Detection of CryptoLocker Variants 5 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2764-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
C:\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_rule2
behavioral2/memory/2764-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4668-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4668-55-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2764-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
C:\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_set1
behavioral2/memory/2764-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/4668-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/4668-55-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2764-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
C:\Users\Admin\AppData\Local\Temp\misid.exe	INDICATOR_EXE_Packed_MPress
behavioral2/memory/2764-18-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4668-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4668-55-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

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_b7892abc1323601cff2b5c28a62c60a5_cryptolocker.exemisid.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	2024-01-25_b7892abc1323601cff2b5c28a62c60a5_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

4668 misid.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4668	misid.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-01-25_b7892abc1323601cff2b5c28a62c60a5_cryptolocker.exe

description	pid	process	target process
PID 2764 wrote to memory of 4668	2764	2024-01-25_b7892abc1323601cff2b5c28a62c60a5_cryptolocker.exe	misid.exe
PID 2764 wrote to memory of 4668	2764	2024-01-25_b7892abc1323601cff2b5c28a62c60a5_cryptolocker.exe	misid.exe
PID 2764 wrote to memory of 4668	2764	2024-01-25_b7892abc1323601cff2b5c28a62c60a5_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-01-25_b7892abc1323601cff2b5c28a62c60a5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_b7892abc1323601cff2b5c28a62c60a5_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2764

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:4668

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
62KB

MD5
f476a961ee7a4c6be7e9dade85b58937

SHA1
ea212fb6b0385647e9565b9d647211d17a09f5e2

SHA256
006c786cceae7b3852b4b1b67488f3a251c0c50d3fd9c26889bc2d22385fe595

SHA512
2a6b6733000619d99ba829c1e8e93a0e0f051eec381d8bb234bc411f7e84b5dd511381b1beb2884e75f1fa0cbcdfc1bf5d85f9f009d1225df5218030e6aae9f0

Download Submit
memory/2764-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2764-2-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/2764-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/2764-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/2764-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4668-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4668-20-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/4668-26-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/4668-55-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download