kinsing | 5053133a1ac53aba928001fb45e634da55cea8ba1dcf3a38c21778520a689a67

Analysis

max time kernel
156s
max time network
169s
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 17:42

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General

Target

2024-01-25_1753e8d7da529a859f518fb1d9a28a0c_cryptolocker.exe
Size

59KB
MD5

1753e8d7da529a859f518fb1d9a28a0c
SHA1

587bc420e5859ff3d59f8c4178d912ec2cd45065
SHA256

5053133a1ac53aba928001fb45e634da55cea8ba1dcf3a38c21778520a689a67
SHA512

6653090ac61454dc425d03078a5134e5aaf46b6cac83c64269195774e74b4cad9527a78c7670af6a27e31f58a67aa65210df67b26375954792e4b7c1335d4935
SSDEEP

1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQRKb61vSbgtsM:BbdDmjr+OtEvwDpjM8U

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/1468-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0007000000023205-13.dat	CryptoLocker_rule2
behavioral2/memory/2216-18-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/1468-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/2216-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2216-18-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/memory/1468-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/memory/2216-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 5 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1468-0-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral2/files/0x0007000000023205-13.dat	UPX
behavioral2/memory/2216-18-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral2/memory/1468-17-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral2/memory/2216-27-0x0000000000500000-0x0000000000510000-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

Processes:

2024-01-25_1753e8d7da529a859f518fb1d9a28a0c_cryptolocker.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_1753e8d7da529a859f518fb1d9a28a0c_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid	Process
2216	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

Processes:

2024-01-25_1753e8d7da529a859f518fb1d9a28a0c_cryptolocker.exe

description	pid	Process	procid_target
PID 1468 wrote to memory of 2216	1468	2024-01-25_1753e8d7da529a859f518fb1d9a28a0c_cryptolocker.exe	87
PID 1468 wrote to memory of 2216	1468	2024-01-25_1753e8d7da529a859f518fb1d9a28a0c_cryptolocker.exe	87
PID 1468 wrote to memory of 2216	1468	2024-01-25_1753e8d7da529a859f518fb1d9a28a0c_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-01-25_1753e8d7da529a859f518fb1d9a28a0c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_1753e8d7da529a859f518fb1d9a28a0c_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1468
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2216

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
59KB

MD5
ae19663d508c8f567ca208a433200def

SHA1
3a005aaa0369c3f87188d61320601e1975f698cf

SHA256
6dcd36d4c4a4bcba55f3164feb24960ed9fab34f1465888d8443879276203cf8

SHA512
00e3c67924f23c8f512e5a733f929d14ba76ecd7e1aaed9e70b567468d61ef2fc9a681f00c492edf3529c2bbe1cb2fca0c5ad62210f58efa4fa46b6eb3702377

Download Submit
memory/1468-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1468-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1468-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1468-3-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/1468-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2216-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2216-20-0x0000000002000000-0x0000000002006000-memory.dmp

Filesize
24KB

Download
memory/2216-26-0x0000000001F50000-0x0000000001F56000-memory.dmp

Filesize
24KB

Download
memory/2216-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download