68cc83fa2cf2a9f7edb864324073b9e8baebb0734cfd384cb1072631161c8937

Analysis

max time kernel
147s
max time network
149s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
09-01-2025 22:32

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General

Target

faas.exe
Size

93KB
MD5

f3d3cdb5f5ba00023ca78a531158fab0
SHA1

455e6b654ccf39ea38863d1e620ccc020aa864ff
SHA256

68cc83fa2cf2a9f7edb864324073b9e8baebb0734cfd384cb1072631161c8937
SHA512

30ae0bd77d0abef23e476f12a00375d34bef6cd1a9fc785f2aadffa7b5dda0d3603c73ba962d7f67b97949eeb6ff9db92e199540b04b23a588e479209d72d59c
SSDEEP

768:UY3dUfnWXxyFcxovUKUJuROprXtWN8eYhYbmXxrjEtCdnl2pi1Rz4Rk3ssGdpngM:BU/WhIUKcuOJhPhBjEwzGi1dDkDngS

Score

8^/10

discovery evasion persistence privilege_escalation

Malware Config

Signatures

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4760	netsh.exe

Drops startup file 2 IoCs

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

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Explorer.exe.exe	faas.exe
File opened for modification	C:\Windows\SysWOW64\Explorer.exe.exe	faas.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Explorer.exe.exe	faas.exe
File opened for modification	C:\Program Files (x86)\Explorer.exe.exe	faas.exe

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 2 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	faas.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4248	faas.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	4248	faas.exe
Token: 33	4248	faas.exe
Token: SeIncBasePriorityPrivilege	4248	faas.exe
Token: 33	4248	faas.exe
Token: SeIncBasePriorityPrivilege	4248	faas.exe
Token: 33	4248	faas.exe
Token: SeIncBasePriorityPrivilege	4248	faas.exe
Token: 33	4248	faas.exe
Token: SeIncBasePriorityPrivilege	4248	faas.exe
Token: 33	4248	faas.exe
Token: SeIncBasePriorityPrivilege	4248	faas.exe
Token: 33	4248	faas.exe
Token: SeIncBasePriorityPrivilege	4248	faas.exe
Token: 33	4248	faas.exe
Token: SeIncBasePriorityPrivilege	4248	faas.exe
Token: 33	4248	faas.exe
Token: SeIncBasePriorityPrivilege	4248	faas.exe
Token: 33	4248	faas.exe
Token: SeIncBasePriorityPrivilege	4248	faas.exe
Token: 33	4248	faas.exe
Token: SeIncBasePriorityPrivilege	4248	faas.exe
Token: 33	4248	faas.exe
Token: SeIncBasePriorityPrivilege	4248	faas.exe
Token: 33	4248	faas.exe
Token: SeIncBasePriorityPrivilege	4248	faas.exe
Token: 33	4248	faas.exe
Token: SeIncBasePriorityPrivilege	4248	faas.exe
Token: 33	4248	faas.exe
Token: SeIncBasePriorityPrivilege	4248	faas.exe
Token: 33	4248	faas.exe
Token: SeIncBasePriorityPrivilege	4248	faas.exe
Token: 33	4248	faas.exe
Token: SeIncBasePriorityPrivilege	4248	faas.exe
Token: 33	4248	faas.exe
Token: SeIncBasePriorityPrivilege	4248	faas.exe
Token: 33	4248	faas.exe
Token: SeIncBasePriorityPrivilege	4248	faas.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4248 wrote to memory of 4760	4248	faas.exe	77
PID 4248 wrote to memory of 4760	4248	faas.exe	77
PID 4248 wrote to memory of 4760	4248	faas.exe	77

C:\Users\Admin\AppData\Local\Temp\faas.exe
"C:\Users\Admin\AppData\Local\Temp\faas.exe"
1⤵
- Drops startup file
- Drops file in System32 directory
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4248
- C:\Windows\SysWOW64\netsh.exe
  netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\faas.exe" "faas.exe" ENABLE
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:4760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

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

Credential Access

Discovery

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\Microsoft\Windows\INetCache\Explorer.exe.exe

Filesize
93KB

MD5
f3d3cdb5f5ba00023ca78a531158fab0

SHA1
455e6b654ccf39ea38863d1e620ccc020aa864ff

SHA256
68cc83fa2cf2a9f7edb864324073b9e8baebb0734cfd384cb1072631161c8937

SHA512
30ae0bd77d0abef23e476f12a00375d34bef6cd1a9fc785f2aadffa7b5dda0d3603c73ba962d7f67b97949eeb6ff9db92e199540b04b23a588e479209d72d59c

Download Submit
memory/4248-0-0x0000000074AF1000-0x0000000074AF2000-memory.dmp

Filesize
4KB

Download
memory/4248-1-0x0000000074AF0000-0x00000000750A1000-memory.dmp

Filesize
5.7MB

Download
memory/4248-2-0x0000000074AF0000-0x00000000750A1000-memory.dmp

Filesize
5.7MB

Download
memory/4248-22-0x0000000074AF0000-0x00000000750A1000-memory.dmp

Filesize
5.7MB

Download
memory/4248-23-0x0000000074AF0000-0x00000000750A1000-memory.dmp

Filesize
5.7MB

Download

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads