kinsing | 732e56973b6efeb0609f8244e23eb931c9abe262d53146e3f75247ef9915275e

Analysis

max time kernel
141s
max time network
155s
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 17:51

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General

Target

2024-01-25_5fb8efbfb2b1c38541952d2f15363067_cryptolocker.exe
Size

44KB
MD5

5fb8efbfb2b1c38541952d2f15363067
SHA1

508f8dbf810e101931e98ee0b15e5840905ba578
SHA256

732e56973b6efeb0609f8244e23eb931c9abe262d53146e3f75247ef9915275e
SHA512

9debe3f51f03999764475f703caf10c9f7d546d57d32d6ea25a44e8dec520074aaa67c4454182f07c05bf7b886d53e38f826151ba7f306257714df67ab2bc375
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedmhXSD:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+1

Score

10^/10

kinsing loader

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/2816-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
C:\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2
behavioral2/memory/1588-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/2816-19-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2816-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
C:\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1
behavioral2/memory/1588-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/memory/2816-19-0x0000000000500000-0x000000000050B000-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_5fb8efbfb2b1c38541952d2f15363067_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-01-25_5fb8efbfb2b1c38541952d2f15363067_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

1588 asih.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1588	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-01-25_5fb8efbfb2b1c38541952d2f15363067_cryptolocker.exe

description	pid	process	target process
PID 2816 wrote to memory of 1588	2816	2024-01-25_5fb8efbfb2b1c38541952d2f15363067_cryptolocker.exe	asih.exe
PID 2816 wrote to memory of 1588	2816	2024-01-25_5fb8efbfb2b1c38541952d2f15363067_cryptolocker.exe	asih.exe
PID 2816 wrote to memory of 1588	2816	2024-01-25_5fb8efbfb2b1c38541952d2f15363067_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-01-25_5fb8efbfb2b1c38541952d2f15363067_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_5fb8efbfb2b1c38541952d2f15363067_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2816

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:1588

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe
Filesize
45KB

MD5
0a7faf6c5378cda434c16054dd0d578e

SHA1
4a0776a794a5460bcd9833e022d89cac3d5f7c6a

SHA256
d28f0a6e0e7e6ffd82c15b55b1b1be71642bc380ddd7fa7cd7f9556dd3fbacde

SHA512
f3bf9d7390b03872637c0f0156640060d3e5d1bcc30dfdf24426d2dad4f2d28c8a52a8f4a4fdffb618546a221da1a19f2717c0cce80a67f498d919373e16b4a6

Download Submit
memory/1588-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1588-21-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1588-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2816-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2816-1-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/2816-2-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/2816-3-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/2816-19-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download