a40626fbe1122175c403f8510e1f6ad41cee213a87ce8252305e32e5071a170a

Analysis

max time kernel
149s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
22/03/2025, 06:15

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General

Target

bcf1af9a5a93ae74ea1c79da9951c5be.exe
Size

29KB
MD5

bcf1af9a5a93ae74ea1c79da9951c5be
SHA1

6b0d2a1cea799118ad12980772242aba94011551
SHA256

9f99c298e78e35b51cb5dc56285be2a26c80b9388f179927d3d5ac90829bbafb
SHA512

7b2df96ccd09c5b3234019f23135a2f44651b89d88b7b6bf107d0710ee79466ceeda0f20f1bd4b1374a50018e2761d42e47b131a22836c990be06a96cedde025
SSDEEP

768:2Y7bXEI+Ge1gFaYqwzLeiBKh0p29SgRw1:l7bXh7RznKhG29jw1

Score

8^/10

defense_evasion discovery persistence privilege_escalation

Malware Config

Signatures

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
5960	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3920955164-3782810283-1225622749-1000\Control Panel\International\Geo\Nation	bcf1af9a5a93ae74ea1c79da9951c5be.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\12ce4e06a81e8d54fd01d9b762f1b1bb.exe	system.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\12ce4e06a81e8d54fd01d9b762f1b1bb.exe	system.exe

Executes dropped EXE 1 IoCs

pid	Process
4936	system.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3920955164-3782810283-1225622749-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\12ce4e06a81e8d54fd01d9b762f1b1bb = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .."	system.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\12ce4e06a81e8d54fd01d9b762f1b1bb = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .."	system.exe

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

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	system.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bcf1af9a5a93ae74ea1c79da9951c5be.exe

Suspicious behavior: EnumeratesProcesses 50 IoCs

pid	Process
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe
4936	system.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4936	system.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4620 wrote to memory of 4936	4620	bcf1af9a5a93ae74ea1c79da9951c5be.exe	87
PID 4620 wrote to memory of 4936	4620	bcf1af9a5a93ae74ea1c79da9951c5be.exe	87
PID 4620 wrote to memory of 4936	4620	bcf1af9a5a93ae74ea1c79da9951c5be.exe	87
PID 4936 wrote to memory of 5960	4936	system.exe	88
PID 4936 wrote to memory of 5960	4936	system.exe	88
PID 4936 wrote to memory of 5960	4936	system.exe	88

C:\Users\Admin\AppData\Local\Temp\bcf1af9a5a93ae74ea1c79da9951c5be.exe
"C:\Users\Admin\AppData\Local\Temp\bcf1af9a5a93ae74ea1c79da9951c5be.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4620
- C:\Users\Admin\AppData\Local\Temp\system.exe
  "C:\Users\Admin\AppData\Local\Temp\system.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4936
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\system.exe" "system.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:5960

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
29KB

MD5
bcf1af9a5a93ae74ea1c79da9951c5be

SHA1
6b0d2a1cea799118ad12980772242aba94011551

SHA256
9f99c298e78e35b51cb5dc56285be2a26c80b9388f179927d3d5ac90829bbafb

SHA512
7b2df96ccd09c5b3234019f23135a2f44651b89d88b7b6bf107d0710ee79466ceeda0f20f1bd4b1374a50018e2761d42e47b131a22836c990be06a96cedde025

Download Submit
memory/4620-0-0x00000000754D2000-0x00000000754D3000-memory.dmp

Filesize
4KB

Download
memory/4620-1-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/4620-2-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/4620-13-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/4936-12-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/4936-15-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/4936-14-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/4936-17-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/4936-18-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/4936-19-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/4936-20-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download