6cd803552c3fccea87f24655af28a08bef2593590c6d418f8e6157c50a4f3938

Analysis

max time kernel
145s
max time network
138s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
16-12-2024 11:37

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General

Target

Server.exe
Size

93KB
MD5

4106c643751ca405526c35082b61e21e
SHA1

a00c03ab8b002b561489b2ef981a23136523949d
SHA256

6cd803552c3fccea87f24655af28a08bef2593590c6d418f8e6157c50a4f3938
SHA512

a780ed987ad64983c21a44a84285f1cd00d5e32449c85bdf1ffc7822424bec3c7bcf4823071268989a5a6f583d01e98a632a999eba0d8b613ffe8fc77419bbdb
SSDEEP

1536:JcwC+xhUa9urgOBPmNvM4jEwzGi1dDUD+gS:JcmUa9urgOkdGi1d6j

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
904	netsh.exe

Drops startup file 6 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe	Server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b441dab2dad78af5af045a19f94e9c80Windows Update.exe	Server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b441dab2dad78af5af045a19f94e9c80Windows Update.exe	Server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe	Server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe	Server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe	Server.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	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1776	Server.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	1776	Server.exe
Token: 33	1776	Server.exe
Token: SeIncBasePriorityPrivilege	1776	Server.exe
Token: 33	1776	Server.exe
Token: SeIncBasePriorityPrivilege	1776	Server.exe
Token: 33	1776	Server.exe
Token: SeIncBasePriorityPrivilege	1776	Server.exe
Token: 33	1776	Server.exe
Token: SeIncBasePriorityPrivilege	1776	Server.exe
Token: 33	1776	Server.exe
Token: SeIncBasePriorityPrivilege	1776	Server.exe
Token: 33	1776	Server.exe
Token: SeIncBasePriorityPrivilege	1776	Server.exe
Token: 33	1776	Server.exe
Token: SeIncBasePriorityPrivilege	1776	Server.exe
Token: 33	1776	Server.exe
Token: SeIncBasePriorityPrivilege	1776	Server.exe
Token: 33	1776	Server.exe
Token: SeIncBasePriorityPrivilege	1776	Server.exe
Token: 33	1776	Server.exe
Token: SeIncBasePriorityPrivilege	1776	Server.exe
Token: 33	1776	Server.exe
Token: SeIncBasePriorityPrivilege	1776	Server.exe
Token: 33	1776	Server.exe
Token: SeIncBasePriorityPrivilege	1776	Server.exe
Token: 33	1776	Server.exe
Token: SeIncBasePriorityPrivilege	1776	Server.exe
Token: 33	1776	Server.exe
Token: SeIncBasePriorityPrivilege	1776	Server.exe
Token: 33	1776	Server.exe
Token: SeIncBasePriorityPrivilege	1776	Server.exe
Token: 33	1776	Server.exe
Token: SeIncBasePriorityPrivilege	1776	Server.exe
Token: 33	1776	Server.exe
Token: SeIncBasePriorityPrivilege	1776	Server.exe
Token: 33	1776	Server.exe
Token: SeIncBasePriorityPrivilege	1776	Server.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1776 wrote to memory of 904	1776	Server.exe	30
PID 1776 wrote to memory of 904	1776	Server.exe	30
PID 1776 wrote to memory of 904	1776	Server.exe	30
PID 1776 wrote to memory of 904	1776	Server.exe	30

C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.exe"
1⤵
- Drops startup file
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1776
- C:\Windows\SysWOW64\netsh.exe
  netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Server.exe" "Server.exe" ENABLE
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:904

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\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe

Filesize
93KB

MD5
4106c643751ca405526c35082b61e21e

SHA1
a00c03ab8b002b561489b2ef981a23136523949d

SHA256
6cd803552c3fccea87f24655af28a08bef2593590c6d418f8e6157c50a4f3938

SHA512
a780ed987ad64983c21a44a84285f1cd00d5e32449c85bdf1ffc7822424bec3c7bcf4823071268989a5a6f583d01e98a632a999eba0d8b613ffe8fc77419bbdb

Download Submit
memory/1776-0-0x0000000074531000-0x0000000074532000-memory.dmp

Filesize
4KB

Download
memory/1776-1-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/1776-2-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/1776-15-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads