e160f4bae8005bb78e9719ab69ce72ba4a9a8d0117498c6e0bafde9963eef460

Analysis

max time kernel
148s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10/12/2024, 10:38

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General

Target
Server.exe
Size 93KB
Sample241210-mpf3laylbl
SHA256 e160f4bae8005bb78e9719ab69ce72ba4a9a8d0117498c6e0bafde9963eef460
MD5 d43643e01d59c289b551c240242ea5cd
SHA1 aa17e80aac2ca4e14297b0a7cf29c85b116882c6
SHA512 4143358f507836da62db5f91fccf50d531b79bc5893d7f09d1929f597924a7e2f6b157ea0cec129c9d7c87853e19596714e918204e5ce074a0aa5dec523cbfdd
SSDEEP 768:sY35xByZnDQMMpAZrGSt6udttXymsahkGJiXxrjEtCdnl2pi1Rz4Rk3YRsGdpUgM:NxUZD3rGWNd7DhkhjEwzGi1dD8DUgS
MD5 SHA1 SHA512 SSDEEP

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
2636	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-1-5-21-2437139445-1151884604-3026847218-1000\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\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

Executes dropped EXE 1 IoCs

pid	Process
3372	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 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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3372	server.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	3372	server.exe
Token: 33	3372	server.exe
Token: SeIncBasePriorityPrivilege	3372	server.exe
Token: 33	3372	server.exe
Token: SeIncBasePriorityPrivilege	3372	server.exe
Token: 33	3372	server.exe
Token: SeIncBasePriorityPrivilege	3372	server.exe
Token: 33	3372	server.exe
Token: SeIncBasePriorityPrivilege	3372	server.exe
Token: 33	3372	server.exe
Token: SeIncBasePriorityPrivilege	3372	server.exe
Token: 33	3372	server.exe
Token: SeIncBasePriorityPrivilege	3372	server.exe
Token: 33	3372	server.exe
Token: SeIncBasePriorityPrivilege	3372	server.exe
Token: 33	3372	server.exe
Token: SeIncBasePriorityPrivilege	3372	server.exe
Token: 33	3372	server.exe
Token: SeIncBasePriorityPrivilege	3372	server.exe
Token: 33	3372	server.exe
Token: SeIncBasePriorityPrivilege	3372	server.exe
Token: 33	3372	server.exe
Token: SeIncBasePriorityPrivilege	3372	server.exe
Token: 33	3372	server.exe
Token: SeIncBasePriorityPrivilege	3372	server.exe
Token: 33	3372	server.exe
Token: SeIncBasePriorityPrivilege	3372	server.exe
Token: 33	3372	server.exe
Token: SeIncBasePriorityPrivilege	3372	server.exe
Token: 33	3372	server.exe
Token: SeIncBasePriorityPrivilege	3372	server.exe
Token: 33	3372	server.exe
Token: SeIncBasePriorityPrivilege	3372	server.exe
Token: 33	3372	server.exe
Token: SeIncBasePriorityPrivilege	3372	server.exe
Token: 33	3372	server.exe
Token: SeIncBasePriorityPrivilege	3372	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3204 wrote to memory of 3372	3204	Server.exe	83
PID 3204 wrote to memory of 3372	3204	Server.exe	83
PID 3204 wrote to memory of 3372	3204	Server.exe	83
PID 3372 wrote to memory of 2636	3372	server.exe	84
PID 3372 wrote to memory of 2636	3372	server.exe	84
PID 3372 wrote to memory of 2636	3372	server.exe	84

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:3204
- 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 WriteProcessMemory
  PID:3372
- - 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:2636

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

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

server.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\server.exe.log
Size 408B
SHA256 8f27f95ad7c09f2e05d7960e78ef8cd935c1262e9657883a75d70dcb877592d2
MD5 661cab77d3b907e8057f2e689e995af3
SHA1 5d1a0ee9c5ee7a7a90d56d00c10dc0e679bee01c
SHA512 2523b316bd79fed0e9b3d73f46959f3dfe270cf950f34bd9d49fe4113a2ae46d0cd00224d848bc40c0d8c55449e2dccc4b4278ba4809c0ca9ede1ac75673fc67
MD5 SHA1 SHA512

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app

Path C:\Users\Admin\AppData\Roaming\app
Size 5B
SHA256 ca1c5c735384c64968c987e3e608cb48a3cbd73e870f1bc6d60f2b24f9445e3a
MD5 a65a8cc18c0fdcac3b78ed8f032e2f98
SHA1 9087f7aaf4edf3b132348b1e5dfa7a678d57d40e
SHA512 8e56c9aa0c90fb30b488fa72a0b9d40e69c357e32d8e6f9d5a299dfbf9df8c896c28684d7163972019ab53dfcfe35dc75e9b305e07c81b9984a410e04b96186d
MD5 SHA1 SHA512

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server.exe

Path C:\Users\Admin\AppData\Roaming\server.exe
Size 93KB
SHA256 e160f4bae8005bb78e9719ab69ce72ba4a9a8d0117498c6e0bafde9963eef460
MD5 d43643e01d59c289b551c240242ea5cd
SHA1 aa17e80aac2ca4e14297b0a7cf29c85b116882c6
SHA512 4143358f507836da62db5f91fccf50d531b79bc5893d7f09d1929f597924a7e2f6b157ea0cec129c9d7c87853e19596714e918204e5ce074a0aa5dec523cbfdd
SSDEEP 768:sY35xByZnDQMMpAZrGSt6udttXymsahkGJiXxrjEtCdnl2pi1Rz4Rk3YRsGdpUgM:NxUZD3rGWNd7DhkhjEwzGi1dD8DUgS
MD5 SHA1 SHA512 SSDEEP

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memory/3204-0-0x0000000074C52000-0x0000000074C53000-memory.dmp

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memory/3204-1-0x0000000074C50000-0x0000000075201000-memory.dmp

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memory/3204-2-0x0000000074C50000-0x0000000075201000-memory.dmp

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memory/3204-15-0x0000000074C50000-0x0000000075201000-memory.dmp

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memory/3372-14-0x0000000074C50000-0x0000000075201000-memory.dmp

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memory/3372-17-0x0000000074C50000-0x0000000075201000-memory.dmp

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memory/3372-16-0x0000000074C50000-0x0000000075201000-memory.dmp

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memory/3372-23-0x0000000074C50000-0x0000000075201000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads