1070b4766e0979a8e15ddbd3d0ba27a9d05272027b3a20eaaf9c9fd854f2def7

Analysis

max time kernel
30s
max time network
35s
platform
windows10-2004_x64
resource
win10v2004-20230621-en
resource tags

arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
submitted
23-06-2023 22:56

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General

Target

Netflix Tools PACK/Netflix Tools PACK/GoldFlix GC Netflix Checker/core/gfsys.exe
Size

419KB
MD5

19f1e1913d37b8698e4fc1bb350d754a
SHA1

922909897e1e2aa431bbe7974bb99849d1c18ad3
SHA256

9d9c257a3f669babda5bbbb3d143a7575f17bee0425f90f80f2ef7bd807bfbc5
SHA512

d178276ac46efd2614d94e2e1dd91b01aae7b565326b1dd831b47cebdbe292bf9df3cbca7bffbb34a826a138b681f2d4bf5f76dc54f9cca4b74f40f8a0dbbec1
SSDEEP

3072:D32GhNvn8PQ7Z21lSaR+OV9aE1+qil0lLh:z2GhN/8227EOioAlq

Score

8^/10

evasion persistence

Malware Config

Signatures

Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1648 netsh.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

Processes:

gfsys.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\Control Panel\International\Geo\Nation gfsys.exe

pid	process
1648	netsh.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\Control Panel\International\Geo\Nation	gfsys.exe

Drops startup file 2 IoCs

Processes:

winconfig.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\460557edf4b4cbfb08eadcebcbd28364.exe	winconfig.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\460557edf4b4cbfb08eadcebcbd28364.exe	winconfig.exe

Executes dropped EXE 1 IoCs

Processes:

winconfig.exe

pid process

1396 winconfig.exe

pid	process
1396	winconfig.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

winconfig.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\460557edf4b4cbfb08eadcebcbd28364 = "\"C:\\Windows\\winconfig.exe\" .."	winconfig.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\460557edf4b4cbfb08eadcebcbd28364 = "\"C:\\Windows\\winconfig.exe\" .."	winconfig.exe

Drops file in Windows directory 1 IoCs

Processes:

gfsys.exe

description ioc process

File created C:\Windows\winconfig.exe gfsys.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

winconfig.exe

description pid process

Token: SeDebugPrivilege 1396 winconfig.exe
Token: 33 1396 winconfig.exe
Token: SeIncBasePriorityPrivilege 1396 winconfig.exe

description	ioc	process
File created	C:\Windows\winconfig.exe	gfsys.exe

description	pid	process
Token: SeDebugPrivilege	1396	winconfig.exe
Token: 33	1396	winconfig.exe
Token: SeIncBasePriorityPrivilege	1396	winconfig.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

gfsys.exewinconfig.exe

description	pid	process	target process
PID 648 wrote to memory of 1396	648	gfsys.exe	winconfig.exe
PID 648 wrote to memory of 1396	648	gfsys.exe	winconfig.exe
PID 648 wrote to memory of 1396	648	gfsys.exe	winconfig.exe
PID 1396 wrote to memory of 1648	1396	winconfig.exe	netsh.exe
PID 1396 wrote to memory of 1648	1396	winconfig.exe	netsh.exe
PID 1396 wrote to memory of 1648	1396	winconfig.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\Netflix Tools PACK\Netflix Tools PACK\GoldFlix GC Netflix Checker\core\gfsys.exe
"C:\Users\Admin\AppData\Local\Temp\Netflix Tools PACK\Netflix Tools PACK\GoldFlix GC Netflix Checker\core\gfsys.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:648
- C:\Windows\winconfig.exe
  "C:\Windows\winconfig.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1396
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Windows\winconfig.exe" "winconfig.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:1648

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

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:\Windows\winconfig.exe

Filesize
419KB

MD5
19f1e1913d37b8698e4fc1bb350d754a

SHA1
922909897e1e2aa431bbe7974bb99849d1c18ad3

SHA256
9d9c257a3f669babda5bbbb3d143a7575f17bee0425f90f80f2ef7bd807bfbc5

SHA512
d178276ac46efd2614d94e2e1dd91b01aae7b565326b1dd831b47cebdbe292bf9df3cbca7bffbb34a826a138b681f2d4bf5f76dc54f9cca4b74f40f8a0dbbec1

Download Submit
C:\Windows\winconfig.exe

Filesize
419KB

MD5
19f1e1913d37b8698e4fc1bb350d754a

SHA1
922909897e1e2aa431bbe7974bb99849d1c18ad3

SHA256
9d9c257a3f669babda5bbbb3d143a7575f17bee0425f90f80f2ef7bd807bfbc5

SHA512
d178276ac46efd2614d94e2e1dd91b01aae7b565326b1dd831b47cebdbe292bf9df3cbca7bffbb34a826a138b681f2d4bf5f76dc54f9cca4b74f40f8a0dbbec1

Download Submit
C:\Windows\winconfig.exe

Filesize
419KB

MD5
19f1e1913d37b8698e4fc1bb350d754a

SHA1
922909897e1e2aa431bbe7974bb99849d1c18ad3

SHA256
9d9c257a3f669babda5bbbb3d143a7575f17bee0425f90f80f2ef7bd807bfbc5

SHA512
d178276ac46efd2614d94e2e1dd91b01aae7b565326b1dd831b47cebdbe292bf9df3cbca7bffbb34a826a138b681f2d4bf5f76dc54f9cca4b74f40f8a0dbbec1

Download Submit
memory/648-136-0x00000000051A0000-0x0000000005232000-memory.dmp

Filesize
584KB

Download
memory/648-137-0x0000000005110000-0x000000000511A000-memory.dmp

Filesize
40KB

Download
memory/648-138-0x0000000005330000-0x0000000005386000-memory.dmp

Filesize
344KB

Download
memory/648-139-0x00000000053B0000-0x00000000053C0000-memory.dmp

Filesize
64KB

Download
memory/648-140-0x00000000053B0000-0x00000000053C0000-memory.dmp

Filesize
64KB

Download
memory/648-133-0x0000000000650000-0x00000000006C0000-memory.dmp

Filesize
448KB

Download
memory/648-135-0x00000000056B0000-0x0000000005C54000-memory.dmp

Filesize
5.6MB

Download
memory/648-134-0x0000000005060000-0x00000000050FC000-memory.dmp

Filesize
624KB

Download
memory/1396-153-0x00000000052E0000-0x00000000052F0000-memory.dmp

Filesize
64KB

Download
memory/1396-154-0x00000000052E0000-0x00000000052F0000-memory.dmp

Filesize
64KB

Download
memory/1396-156-0x00000000052E0000-0x00000000052F0000-memory.dmp

Filesize
64KB

Download
memory/1396-157-0x00000000052E0000-0x00000000052F0000-memory.dmp

Filesize
64KB

Download