e160f4bae8005bb78e9719ab69ce72ba4a9a8d0117498c6e0bafde9963eef460

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
10-12-2024 10:44

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General

Target

Server.exe
Size

93KB
MD5

d43643e01d59c289b551c240242ea5cd
SHA1

aa17e80aac2ca4e14297b0a7cf29c85b116882c6
SHA256

e160f4bae8005bb78e9719ab69ce72ba4a9a8d0117498c6e0bafde9963eef460
SHA512

4143358f507836da62db5f91fccf50d531b79bc5893d7f09d1929f597924a7e2f6b157ea0cec129c9d7c87853e19596714e918204e5ce074a0aa5dec523cbfdd
SSDEEP

768:sY35xByZnDQMMpAZrGSt6udttXymsahkGJiXxrjEtCdnl2pi1Rz4Rk3YRsGdpUgM:NxUZD3rGWNd7DhkhjEwzGi1dD8DUgS

Score

8^/10

discovery evasion persistence privilege_escalation

Malware Config

Signatures

Disables Task Manager via registry modification
evasion

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2668	netsh.exe

Drops startup file 4 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\ac168fa7329a1bbe164c59a113cb4d71Windows Update.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ac168fa7329a1bbe164c59a113cb4d71Windows Update.exe	server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
2356	server.exe

Loads dropped DLL 2 IoCs

pid	Process
2744	Server.exe
2744	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 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 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

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	Server.exe
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
2356	server.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	2356	server.exe
Token: 33	2356	server.exe
Token: SeIncBasePriorityPrivilege	2356	server.exe
Token: 33	2356	server.exe
Token: SeIncBasePriorityPrivilege	2356	server.exe
Token: 33	2356	server.exe
Token: SeIncBasePriorityPrivilege	2356	server.exe
Token: 33	2356	server.exe
Token: SeIncBasePriorityPrivilege	2356	server.exe
Token: 33	2356	server.exe
Token: SeIncBasePriorityPrivilege	2356	server.exe
Token: 33	2356	server.exe
Token: SeIncBasePriorityPrivilege	2356	server.exe
Token: 33	2356	server.exe
Token: SeIncBasePriorityPrivilege	2356	server.exe
Token: 33	2356	server.exe
Token: SeIncBasePriorityPrivilege	2356	server.exe
Token: 33	2356	server.exe
Token: SeIncBasePriorityPrivilege	2356	server.exe
Token: 33	2356	server.exe
Token: SeIncBasePriorityPrivilege	2356	server.exe
Token: 33	2356	server.exe
Token: SeIncBasePriorityPrivilege	2356	server.exe
Token: 33	2356	server.exe
Token: SeIncBasePriorityPrivilege	2356	server.exe
Token: 33	2356	server.exe
Token: SeIncBasePriorityPrivilege	2356	server.exe
Token: 33	2356	server.exe
Token: SeIncBasePriorityPrivilege	2356	server.exe
Token: 33	2356	server.exe
Token: SeIncBasePriorityPrivilege	2356	server.exe
Token: 33	2356	server.exe
Token: SeIncBasePriorityPrivilege	2356	server.exe
Token: 33	2356	server.exe
Token: SeIncBasePriorityPrivilege	2356	server.exe
Token: 33	2356	server.exe
Token: SeIncBasePriorityPrivilege	2356	server.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2356	server.exe
2356	server.exe
2356	server.exe
2356	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2744 wrote to memory of 2356	2744	Server.exe	30
PID 2744 wrote to memory of 2356	2744	Server.exe	30
PID 2744 wrote to memory of 2356	2744	Server.exe	30
PID 2744 wrote to memory of 2356	2744	Server.exe	30
PID 2356 wrote to memory of 2668	2356	server.exe	31
PID 2356 wrote to memory of 2668	2356	server.exe	31
PID 2356 wrote to memory of 2668	2356	server.exe	31
PID 2356 wrote to memory of 2668	2356	server.exe	31

C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2744
- C:\Users\Admin\AppData\Roaming\server.exe
  "C:\Users\Admin\AppData\Roaming\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2356
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2668

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
1⤵
PID:1912

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 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\Roaming\app

Filesize
5B

MD5
a65a8cc18c0fdcac3b78ed8f032e2f98

SHA1
9087f7aaf4edf3b132348b1e5dfa7a678d57d40e

SHA256
ca1c5c735384c64968c987e3e608cb48a3cbd73e870f1bc6d60f2b24f9445e3a

SHA512
8e56c9aa0c90fb30b488fa72a0b9d40e69c357e32d8e6f9d5a299dfbf9df8c896c28684d7163972019ab53dfcfe35dc75e9b305e07c81b9984a410e04b96186d

Download Submit
C:\Users\Admin\AppData\Roaming\server.exe

Filesize
93KB

MD5
d43643e01d59c289b551c240242ea5cd

SHA1
aa17e80aac2ca4e14297b0a7cf29c85b116882c6

SHA256
e160f4bae8005bb78e9719ab69ce72ba4a9a8d0117498c6e0bafde9963eef460

SHA512
4143358f507836da62db5f91fccf50d531b79bc5893d7f09d1929f597924a7e2f6b157ea0cec129c9d7c87853e19596714e918204e5ce074a0aa5dec523cbfdd

Download Submit
memory/2356-16-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/2356-15-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/2356-17-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/2356-23-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/2744-0-0x0000000074331000-0x0000000074332000-memory.dmp

Filesize
4KB

Download
memory/2744-1-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/2744-2-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/2744-14-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads