kinsing | 0461694be35b2a3664b31ec31c0e6c0337bc68bf28c45c1b1f1c0a5267675d36

Analysis

max time kernel
148s
max time network
156s
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 15:49

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General

Target

2024-01-25_c810e8e336fd24aab17d3da71445db41_cryptolocker.exe
Size

67KB
MD5

c810e8e336fd24aab17d3da71445db41
SHA1

8511fd6e5e8c84ccadc6c171b3aab600198cbdb3
SHA256

0461694be35b2a3664b31ec31c0e6c0337bc68bf28c45c1b1f1c0a5267675d36
SHA512

70e773ba0689fe5abae54119609a2436dca84c0103fa11f15203c04d9b3584d3543ba585aeaac468c498e16c742d5d61be3adbf619f4f3d52aeb82a74bb632c3
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUe:DW60sllyWOtEvwDpjwF85c

Score

10^/10

kinsing loader

Malware Config

Signatures

Kinsing
Kinsing is a loader written in Golang.
loader kinsing

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral2/memory/2408-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000700000002321f-13.dat	CryptoLocker_rule2
behavioral2/memory/2408-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral2/memory/2408-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000700000002321f-13.dat	CryptoLocker_set1
behavioral2/memory/2408-17-0x0000000000500000-0x000000000050B000-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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	2024-01-25_c810e8e336fd24aab17d3da71445db41_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
180	asih.exe

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 2408 wrote to memory of 180	2408	2024-01-25_c810e8e336fd24aab17d3da71445db41_cryptolocker.exe	89
PID 2408 wrote to memory of 180	2408	2024-01-25_c810e8e336fd24aab17d3da71445db41_cryptolocker.exe	89
PID 2408 wrote to memory of 180	2408	2024-01-25_c810e8e336fd24aab17d3da71445db41_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-01-25_c810e8e336fd24aab17d3da71445db41_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_c810e8e336fd24aab17d3da71445db41_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2408
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:180

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
67KB

MD5
ba00bbec9451adf0454c93fc18556974

SHA1
637fa71b4674cd00c8b0c833a2f2d95494086801

SHA256
eecba227c8e73771ab08aa74ba8840075ac5a98f6d70e324af6ab5f736468236

SHA512
f142bffb7b38471e119aa5b66bde8acc40d41bcebad3d9c9815c1f72ff06ca162402dc994d1cc9f864e299c2a4b04d6e2a58bb72daeb1394ad69749300b395fd

Download Submit
memory/180-19-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/180-21-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/2408-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2408-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2408-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2408-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2408-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download