9147c7836fe827450e7f0d66e8337fbd07928a0ea19f428db38657fbdffd2075

Analysis

max time kernel
95s
max time network
130s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
13-09-2024 19:48

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General

Target

Server.exe
Size

93KB
MD5

deb54ef342e3a0ec27127a3e7d652d26
SHA1

e06df21ee97e502b70dc7bde782eb74207903eda
SHA256

9147c7836fe827450e7f0d66e8337fbd07928a0ea19f428db38657fbdffd2075
SHA512

a0a3b05849e2601c35f41f5bd6a281c012e16dc496bb6f6037cfa539dc4dc2e3d1d5bd8fdcf782a800096682cd8969316913ebd226d07a8eb66025980ca48a3f
SSDEEP

1536:z9PTr1IDavlZhbSKl9YdjEwzGi1dDUDSgS:z9PSDavlZIQmqi1da3

Score

8^/10

discovery evasion persistence privilege_escalation

Malware Config

Signatures

Disables Task Manager via registry modification
evasion

Modifies Windows Firewall 2 TTPs 4 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4052	netsh.exe
3748	netsh.exe
2084	netsh.exe
3936	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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	Server.exe

Drops startup file 4 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
2720	server.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Explower.exe	server.exe
File opened for modification	C:\Windows\SysWOW64\Explower.exe	server.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Explower.exe	server.exe
File created	C:\Program Files (x86)\Explower.exe	server.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 12 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
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
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
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 8 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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1776	cmd.exe
4772	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4772	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe
2720	server.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2720	server.exe

Suspicious use of AdjustPrivilegeToken 13 IoCs

description	pid	Process
Token: SeDebugPrivilege	2720	server.exe
Token: 33	2720	server.exe
Token: SeIncBasePriorityPrivilege	2720	server.exe
Token: 33	2720	server.exe
Token: SeIncBasePriorityPrivilege	2720	server.exe
Token: 33	2720	server.exe
Token: SeIncBasePriorityPrivilege	2720	server.exe
Token: 33	2720	server.exe
Token: SeIncBasePriorityPrivilege	2720	server.exe
Token: 33	2720	server.exe
Token: SeIncBasePriorityPrivilege	2720	server.exe
Token: 33	2720	server.exe
Token: SeIncBasePriorityPrivilege	2720	server.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3312 wrote to memory of 2720	3312	Server.exe	86
PID 3312 wrote to memory of 2720	3312	Server.exe	86
PID 3312 wrote to memory of 2720	3312	Server.exe	86
PID 2720 wrote to memory of 4052	2720	server.exe	89
PID 2720 wrote to memory of 4052	2720	server.exe	89
PID 2720 wrote to memory of 4052	2720	server.exe	89
PID 2720 wrote to memory of 3748	2720	server.exe	94
PID 2720 wrote to memory of 3748	2720	server.exe	94
PID 2720 wrote to memory of 3748	2720	server.exe	94
PID 2720 wrote to memory of 2084	2720	server.exe	95
PID 2720 wrote to memory of 2084	2720	server.exe	95
PID 2720 wrote to memory of 2084	2720	server.exe	95
PID 2720 wrote to memory of 3936	2720	server.exe	102
PID 2720 wrote to memory of 3936	2720	server.exe	102
PID 2720 wrote to memory of 3936	2720	server.exe	102
PID 2720 wrote to memory of 1776	2720	server.exe	103
PID 2720 wrote to memory of 1776	2720	server.exe	103
PID 2720 wrote to memory of 1776	2720	server.exe	103
PID 1776 wrote to memory of 4772	1776	cmd.exe	106
PID 1776 wrote to memory of 4772	1776	cmd.exe	106
PID 1776 wrote to memory of 4772	1776	cmd.exe	106

C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3312
- C:\ProgramData\server.exe
  "C:\ProgramData\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Drops file in System32 directory
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2720
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\ProgramData\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:4052
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall delete allowedprogram "C:\ProgramData\server.exe"
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:3748
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\ProgramData\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2084
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall delete allowedprogram "C:\ProgramData\server.exe"
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:3936
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c ping 0 -n 2 & del "C:\ProgramData\server.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:1776
  - - C:\Windows\SysWOW64\PING.EXE
      ping 0 -n 2
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:4772

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

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\server.exe

Filesize
93KB

MD5
deb54ef342e3a0ec27127a3e7d652d26

SHA1
e06df21ee97e502b70dc7bde782eb74207903eda

SHA256
9147c7836fe827450e7f0d66e8337fbd07928a0ea19f428db38657fbdffd2075

SHA512
a0a3b05849e2601c35f41f5bd6a281c012e16dc496bb6f6037cfa539dc4dc2e3d1d5bd8fdcf782a800096682cd8969316913ebd226d07a8eb66025980ca48a3f

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\server.exe.log

Filesize
408B

MD5
661cab77d3b907e8057f2e689e995af3

SHA1
5d1a0ee9c5ee7a7a90d56d00c10dc0e679bee01c

SHA256
8f27f95ad7c09f2e05d7960e78ef8cd935c1262e9657883a75d70dcb877592d2

SHA512
2523b316bd79fed0e9b3d73f46959f3dfe270cf950f34bd9d49fe4113a2ae46d0cd00224d848bc40c0d8c55449e2dccc4b4278ba4809c0ca9ede1ac75673fc67

Download Submit
C:\Users\Admin\AppData\Roaming\app

Filesize
5B

MD5
bbcd2be775370c1e106e66d077a93f3b

SHA1
a44b6a98f30e3275fc304bc3b29e0eab8ae47f20

SHA256
a7aa76f137ba550c381cfb8e5195a01963ae49db167e1cd1e0a8b902ed81eda1

SHA512
bb6e0d1f24253a9525fd538debf8ca68eb7078cb8539140c184331a854ecdea192fbcc314c4154a0a474c9aec41a79efeb8150922454c3c9e71eeb5297ae2f72

Download Submit
memory/2720-13-0x0000000074FB0000-0x0000000075561000-memory.dmp

Filesize
5.7MB

Download
memory/2720-15-0x0000000074FB0000-0x0000000075561000-memory.dmp

Filesize
5.7MB

Download
memory/2720-38-0x0000000074FB0000-0x0000000075561000-memory.dmp

Filesize
5.7MB

Download
memory/2720-41-0x0000000074FB0000-0x0000000075561000-memory.dmp

Filesize
5.7MB

Download
memory/3312-0-0x0000000074FB2000-0x0000000074FB3000-memory.dmp

Filesize
4KB

Download
memory/3312-1-0x0000000074FB0000-0x0000000075561000-memory.dmp

Filesize
5.7MB

Download
memory/3312-2-0x0000000074FB0000-0x0000000075561000-memory.dmp

Filesize
5.7MB

Download
memory/3312-14-0x0000000074FB0000-0x0000000075561000-memory.dmp

Filesize
5.7MB

Download