Overview

overview

10

Static

static

10

Server.exe

windows7-x64

10

Server.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-12-2024 06:20

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General

  • Target

    Server.exe

  • Size

    23KB

  • MD5

    cb5828ff44cabf7101a23e21c11b972b

  • SHA1

    80f5fe5f16d85c8bcf6ad004c79bb8de2504273c

  • SHA256

    68ea9901913dcf4a5e41d1c25f98ad33032d3649d4496b71df6bf0935d9ac5e7

  • SHA512

    594226a3db27fae1c87ca8fd123975f0be280da5351d86945c923b9fdc8e3362beafb7c801e02212bdbd5ca30948da9edc0e625c9d1c4b1c1a834b6a78f4b460

  • SSDEEP

    384:boWSkWHa55BgDVRGipkItzY6FZg36Eh7FpmRvR6JZlbw8hqIusZzZAy:0Juk9ptRpcnuQ

Score
10/10
njratdiscoveryevasionpersistenceprivilege_escalationtrojan

Malware Config

Signatures

  • Njrat family
    njrat
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Modifies Windows Firewall 2 TTPs 1 IoCs
    evasion
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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.

    persistenceprivilege_escalation
  • 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
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • 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:3532
    • C:\Users\Admin\server.exe
      "C:\Users\Admin\server.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1164
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:2352

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

    319B

    MD5

    91046f2e147049d3e53cd9bf9d4d95ed

    SHA1

    228e347d062840b2edcbd16904475aacad414c62

    SHA256

    ea92f8291b86440b98162409b1f9f04470455c22be01a1480ea5ebc37eb168dc

    SHA512

    071a9c6e17760a726c3a4519cf8006f36f17f50946af0129e0e1f3e480f6b7fcc804a7614b044247f2420a8b2b46bec5b8493e4869bb918bc7c0f6aa1346c3e0

    Download Submit

  • C:\Users\Admin\server.exe
    Filesize

    23KB

    MD5

    cb5828ff44cabf7101a23e21c11b972b

    SHA1

    80f5fe5f16d85c8bcf6ad004c79bb8de2504273c

    SHA256

    68ea9901913dcf4a5e41d1c25f98ad33032d3649d4496b71df6bf0935d9ac5e7

    SHA512

    594226a3db27fae1c87ca8fd123975f0be280da5351d86945c923b9fdc8e3362beafb7c801e02212bdbd5ca30948da9edc0e625c9d1c4b1c1a834b6a78f4b460

    Download Submit

  • memory/1164-22-0x0000000074CD0000-0x0000000075281000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1164-24-0x0000000074CD0000-0x0000000075281000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1164-26-0x0000000074CD0000-0x0000000075281000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1164-27-0x0000000074CD0000-0x0000000075281000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/3532-0-0x0000000074CD2000-0x0000000074CD3000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3532-1-0x0000000074CD0000-0x0000000075281000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/3532-2-0x0000000074CD0000-0x0000000075281000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/3532-23-0x0000000074CD0000-0x0000000075281000-memory.dmp

    Filesize

    5.7MB

    Download