kinsing | 47ce762a85469542401e2cdede7e409f236cca6d8c2f77337bdc31a31ad9f6c8

General

Target

751d870aa39047bca3a7e6cca0e11303.exe
Size

11.4MB
MD5

751d870aa39047bca3a7e6cca0e11303
SHA1

6220cacde3e1f98a5a1813ae7324ba951bcbe895
SHA256

47ce762a85469542401e2cdede7e409f236cca6d8c2f77337bdc31a31ad9f6c8
SHA512

5e553ba1c774731d30a79f406a9f21a6a7af393ac7a7cdc0598e4e672ebb4b9b88f716a9ecef86252aaa615df256ba37f874bf7f2eb6c2413be9b45a8e54a487
SSDEEP

12288:hTAazcHzcHzcHzcHzcHzcHzcHzcHzcHzcHzcHzcHzcHzcHzcHzcHzcHzcHzcHzcn:9

Score

10^/10

kinsing tofsee evasion loader persistence trojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Signatures

Kinsing
Kinsing is a loader written in Golang.
loader kinsing
Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Creates new service(s) 1 TTPs
persistence

Windows Service
T1543.003

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
3860	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\gosdhqcx\ImagePath = "C:\\Windows\\SysWOW64\\gosdhqcx\\dkwjsfga.exe"	svchost.exe

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-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation	751d870aa39047bca3a7e6cca0e11303.exe

Executes dropped EXE 1 IoCs

pid	Process
2700	dkwjsfga.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2700 set thread context of 804	2700	dkwjsfga.exe	101

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
1976	sc.exe
4332	sc.exe
4856	sc.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
464	2700	WerFault.exe	98

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 2220	2368	751d870aa39047bca3a7e6cca0e11303.exe	88
PID 2368 wrote to memory of 2220	2368	751d870aa39047bca3a7e6cca0e11303.exe	88
PID 2368 wrote to memory of 2220	2368	751d870aa39047bca3a7e6cca0e11303.exe	88
PID 2368 wrote to memory of 1004	2368	751d870aa39047bca3a7e6cca0e11303.exe	90
PID 2368 wrote to memory of 1004	2368	751d870aa39047bca3a7e6cca0e11303.exe	90
PID 2368 wrote to memory of 1004	2368	751d870aa39047bca3a7e6cca0e11303.exe	90
PID 2368 wrote to memory of 4856	2368	751d870aa39047bca3a7e6cca0e11303.exe	92
PID 2368 wrote to memory of 4856	2368	751d870aa39047bca3a7e6cca0e11303.exe	92
PID 2368 wrote to memory of 4856	2368	751d870aa39047bca3a7e6cca0e11303.exe	92
PID 2368 wrote to memory of 1976	2368	751d870aa39047bca3a7e6cca0e11303.exe	94
PID 2368 wrote to memory of 1976	2368	751d870aa39047bca3a7e6cca0e11303.exe	94
PID 2368 wrote to memory of 1976	2368	751d870aa39047bca3a7e6cca0e11303.exe	94
PID 2368 wrote to memory of 4332	2368	751d870aa39047bca3a7e6cca0e11303.exe	96
PID 2368 wrote to memory of 4332	2368	751d870aa39047bca3a7e6cca0e11303.exe	96
PID 2368 wrote to memory of 4332	2368	751d870aa39047bca3a7e6cca0e11303.exe	96
PID 2368 wrote to memory of 3860	2368	751d870aa39047bca3a7e6cca0e11303.exe	99
PID 2368 wrote to memory of 3860	2368	751d870aa39047bca3a7e6cca0e11303.exe	99
PID 2368 wrote to memory of 3860	2368	751d870aa39047bca3a7e6cca0e11303.exe	99
PID 2700 wrote to memory of 804	2700	dkwjsfga.exe	101
PID 2700 wrote to memory of 804	2700	dkwjsfga.exe	101
PID 2700 wrote to memory of 804	2700	dkwjsfga.exe	101
PID 2700 wrote to memory of 804	2700	dkwjsfga.exe	101
PID 2700 wrote to memory of 804	2700	dkwjsfga.exe	101

C:\Users\Admin\AppData\Local\Temp\751d870aa39047bca3a7e6cca0e11303.exe
"C:\Users\Admin\AppData\Local\Temp\751d870aa39047bca3a7e6cca0e11303.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gosdhqcx\
  2⤵
  PID:2220
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dkwjsfga.exe" C:\Windows\SysWOW64\gosdhqcx\
  2⤵
  PID:1004
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gosdhqcx binPath= "C:\Windows\SysWOW64\gosdhqcx\dkwjsfga.exe /d\"C:\Users\Admin\AppData\Local\Temp\751d870aa39047bca3a7e6cca0e11303.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:4856
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gosdhqcx "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:1976
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gosdhqcx
  2⤵
  - Launches sc.exe
  PID:4332
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
  2⤵
  - Modifies Windows Firewall
  PID:3860

C:\Windows\SysWOW64\gosdhqcx\dkwjsfga.exe
C:\Windows\SysWOW64\gosdhqcx\dkwjsfga.exe /d"C:\Users\Admin\AppData\Local\Temp\751d870aa39047bca3a7e6cca0e11303.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2700
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  PID:804
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2700 -s 512
  2⤵
  - Program crash
  PID:464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2700 -ip 2700
1⤵
PID:1040

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
14.4MB

MD5
55e3c778b3dc5a4c68be2c7cca3ff0ba

SHA1
e28af63482d1c2c4651cfe6eb3e8a2275bf751d4

SHA256
b6e7b7fe2e2d32adee83978b7cd5f72a72699254f4c57ea3fc51b43280c5cd6a

SHA512
ee95a9287e9509ec6814364d9829caa68165fa1569be5c064e350ff264085123ae98bb0bd59679afac87f7815478a25c4050b892b9ef8bc4f21c154357c0d994

Download Submit
C:\Windows\SysWOW64\gosdhqcx\dkwjsfga.exe

Filesize
2.1MB

MD5
c5f2395da74ab65b223248d0a22816fb

SHA1
1901b0a66d07dca6bcb6df9fa68309d6ca08c49a

SHA256
95f0a51b623a3db0b4a6c7fdd194c71565e9854dd20c33648a755dfdc1a6ca68

SHA512
763d0554237ad0ca4dc994503b1734c192f97dbd93b5faf989ad61c54293642171ab32ce5b38194ca97aba43e7b4434d0c4e4d9893d2b0b6a07b69b92cce31b2

Download Submit
memory/804-13-0x0000000000FE0000-0x0000000000FF5000-memory.dmp

Filesize
84KB

Download
memory/804-17-0x0000000000FE0000-0x0000000000FF5000-memory.dmp

Filesize
84KB

Download
memory/804-22-0x0000000000FE0000-0x0000000000FF5000-memory.dmp

Filesize
84KB

Download
memory/804-9-0x0000000000FE0000-0x0000000000FF5000-memory.dmp

Filesize
84KB

Download
memory/804-18-0x0000000000FE0000-0x0000000000FF5000-memory.dmp

Filesize
84KB

Download
memory/2368-2-0x0000000001F20000-0x0000000001F33000-memory.dmp

Filesize
76KB

Download
memory/2368-4-0x0000000000400000-0x0000000001D73000-memory.dmp

Filesize
25.4MB

Download
memory/2368-1-0x0000000001F50000-0x0000000002050000-memory.dmp

Filesize
1024KB

Download
memory/2368-19-0x0000000001F50000-0x0000000002050000-memory.dmp

Filesize
1024KB

Download
memory/2368-16-0x0000000000400000-0x0000000001D73000-memory.dmp

Filesize
25.4MB

Download
memory/2700-11-0x0000000000400000-0x0000000001D73000-memory.dmp

Filesize
25.4MB

Download
memory/2700-15-0x0000000002650000-0x0000000002663000-memory.dmp

Filesize
76KB

Download
memory/2700-14-0x0000000000400000-0x0000000001D73000-memory.dmp

Filesize
25.4MB

Download
memory/2700-8-0x0000000001EB0000-0x0000000001FB0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads