kinsing | 0bc1b322a4504386c799f00c62d7ce16305bddfabdeb41305e07e0a87ad8a123

Analysis

max time kernel
149s
max time network
154s
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 17:22

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General

Target

2024-01-25_0850ef397d389e4a4cfb80e1d0335180_cryptolocker.exe
Size

62KB
MD5

0850ef397d389e4a4cfb80e1d0335180
SHA1

900e4ca00a2bacffa373c78bdd53335725af6d81
SHA256

0bc1b322a4504386c799f00c62d7ce16305bddfabdeb41305e07e0a87ad8a123
SHA512

ccb13b3e487fee7b4e9e106a6b87912d8cf2d2acd98535c6997430f51d3a2e4c728e23d153a5db938bc16ca9a6fbce3a352fed9df56e8ef85fe62c256cd464d4
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjYibAo8:1nK6a+qdOOtEvwDpju

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

resource	yara_rule
behavioral2/memory/4492-0-0x0000000000500000-0x000000000050F311-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000600000002321f-13.dat	CryptoLocker_rule2
behavioral2/memory/4492-17-0x0000000000500000-0x000000000050F311-memory.dmp	CryptoLocker_rule2
behavioral2/memory/2116-26-0x0000000000500000-0x000000000050F311-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/4492-0-0x0000000000500000-0x000000000050F311-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000600000002321f-13.dat	CryptoLocker_set1
behavioral2/memory/4492-17-0x0000000000500000-0x000000000050F311-memory.dmp	CryptoLocker_set1
behavioral2/memory/2116-26-0x0000000000500000-0x000000000050F311-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/4492-0-0x0000000000500000-0x000000000050F311-memory.dmp	UPX
behavioral2/files/0x000600000002321f-13.dat	UPX
behavioral2/memory/4492-17-0x0000000000500000-0x000000000050F311-memory.dmp	UPX
behavioral2/memory/2116-26-0x0000000000500000-0x000000000050F311-memory.dmp	UPX

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	2024-01-25_0850ef397d389e4a4cfb80e1d0335180_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2116	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4492-0-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/files/0x000600000002321f-13.dat	upx
behavioral2/memory/4492-17-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/memory/2116-26-0x0000000000500000-0x000000000050F311-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

description	pid	Process	procid_target
PID 4492 wrote to memory of 2116	4492	2024-01-25_0850ef397d389e4a4cfb80e1d0335180_cryptolocker.exe	86
PID 4492 wrote to memory of 2116	4492	2024-01-25_0850ef397d389e4a4cfb80e1d0335180_cryptolocker.exe	86
PID 4492 wrote to memory of 2116	4492	2024-01-25_0850ef397d389e4a4cfb80e1d0335180_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-01-25_0850ef397d389e4a4cfb80e1d0335180_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_0850ef397d389e4a4cfb80e1d0335180_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4492
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2116

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
63KB

MD5
5103c25d50f35c76e8fa76201d8b189e

SHA1
ad8c2beb5049c3a37c3ab5ca165ec41ac956fb01

SHA256
5d82129593f1c5ad18bf5c651af743a4da0d81a541252d5f6ab39ffdc47ec9c3

SHA512
b793e2fc563b96ba2d524c524d6703c66d609ce256b2040c249b66b1a98dd16fc94a48896535cbc4f3ad48eb97f2ea01d73893a3b37012549a3161599a9c6c65

Download Submit
memory/2116-20-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/2116-19-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2116-26-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/4492-0-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/4492-1-0x0000000000570000-0x0000000000576000-memory.dmp

Filesize
24KB

Download
memory/4492-2-0x0000000000570000-0x0000000000576000-memory.dmp

Filesize
24KB

Download
memory/4492-3-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/4492-17-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download