kinsing | 93ea3f58e4abcf2eb8602092916b4120537fa9b8038a6072d383665ea29b201b

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 17:04

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General

Target

2024-01-25_e3e57e10e3fe7e1f13980595c9e23566_cryptolocker.exe
Size

89KB
MD5

e3e57e10e3fe7e1f13980595c9e23566
SHA1

18ce572b59ee492e8b95b4f9f07877a9e2d22422
SHA256

93ea3f58e4abcf2eb8602092916b4120537fa9b8038a6072d383665ea29b201b
SHA512

f8732eabea7e43388c66c99db6baebddf5892e0d2635de7b1b12c3f56bbb76b1d69539a121346bc33fd09486112ad7b709af28bda344b77c576ae4a0298eb0cd
SSDEEP

1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRMy87UI:zCsanOtEvwDpjh

Score

10^/10

kinsing loader upx

Malware Config

Signatures

Kinsing
Kinsing is a loader written in Golang.
loader kinsing

Detection of CryptoLocker Variants 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2160-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
C:\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_rule2
behavioral2/memory/2160-19-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4072-54-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2160-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
C:\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_set1
behavioral2/memory/2160-19-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/memory/4072-54-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2160-0-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
C:\Users\Admin\AppData\Local\Temp\misid.exe	UPX
behavioral2/memory/2160-19-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral2/memory/4072-54-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

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_e3e57e10e3fe7e1f13980595c9e23566_cryptolocker.exemisid.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\Control Panel\International\Geo\Nation	2024-01-25_e3e57e10e3fe7e1f13980595c9e23566_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

4072 misid.exe

pid	process
4072	misid.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/2160-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
C:\Users\Admin\AppData\Local\Temp\misid.exe	upx
behavioral2/memory/2160-19-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/4072-54-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-01-25_e3e57e10e3fe7e1f13980595c9e23566_cryptolocker.exe

description	pid	process	target process
PID 2160 wrote to memory of 4072	2160	2024-01-25_e3e57e10e3fe7e1f13980595c9e23566_cryptolocker.exe	misid.exe
PID 2160 wrote to memory of 4072	2160	2024-01-25_e3e57e10e3fe7e1f13980595c9e23566_cryptolocker.exe	misid.exe
PID 2160 wrote to memory of 4072	2160	2024-01-25_e3e57e10e3fe7e1f13980595c9e23566_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-01-25_e3e57e10e3fe7e1f13980595c9e23566_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_e3e57e10e3fe7e1f13980595c9e23566_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2160

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: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\misid.exe
Filesize
89KB

MD5
37ab944344d7b5913bf67ef1c415e0e2

SHA1
dea326f6d68ecc85132542cffd17a6e564a07089

SHA256
c55b12547ba5527d058dcb98bafdf3209631be816cd31ae1c0cdf6001cd4bb7a

SHA512
754b6b6f56c1945983325dbbdfda858c21a8294b01138a8db812664c4dc5b93d01acb3316438d050d58c74ef67e25c21fb328c3bc4ca5a816d33c420adff8b5c

Download Submit
memory/2160-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2160-1-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/2160-2-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/2160-3-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download
memory/2160-19-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4072-21-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4072-18-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/4072-54-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download