Overview

overview

10

Static

static

10

501cd09125...e0.exe

windows7-x64

10

501cd09125...e0.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    20/08/2024, 12:16

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General

  • Target
    501cd09125b0d60c8612ee07d41aa6e0.exe
  • Size 134KB
  • Sample240820-pff3ca1djc
  • SHA256 0ff34979bd780fdaabef5d9f97d20499ef8c60aaf7e82200c822894d8ecd8cb5
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
njratsazandiscoveryevasionpersistencetrojan

Malware Config

Extracted

Family

  • njrat

Version

  • <- NjRAT 0.7d Horror Edition ->

Botnet

  • Sazan

C2

  • 84.32.231.176:1610

Mutex

  • 5f1f65bec0cfed61b046be01c3f0b40e

Attributes
  • reg_key

    5f1f65bec0cfed61b046be01c3f0b40e

  • splitter

    Y262SUCZ4UJJ

Signatures

  • UAC bypass 3 TTPs 1 IoCs
    evasiontrojan
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • 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
  • Modifies registry key 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 39 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\501cd09125b0d60c8612ee07d41aa6e0.exe
    "C:\Users\Admin\AppData\Local\Temp\501cd09125b0d60c8612ee07d41aa6e0.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1724
    • C:\Windows\SysWOW64\attrib.exe
      attrib +h "C:\Users\Admin\AppData\Local\Temp\501cd09125b0d60c8612ee07d41aa6e0.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Views/modifies file attributes
      PID:2920
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /delete /tn CleanSweepCheck /f
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1260
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /sc minute /mo 1 /tn CleanSweepCheck /tr C:\Users\Admin\AppData\Local\Temp\501cd09125b0d60c8612ee07d41aa6e0.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1936
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c reg ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1164
      • C:\Windows\SysWOW64\reg.exe
        reg ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
        3⤵
        • UAC bypass
        • System Location Discovery: System Language Discovery
        • Modifies registry key
        PID:2248
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {F2975702-B2E9-4EC0-84CB-ADB92461DBA1} S-1-5-21-2958949473-3205530200-1453100116-1000:WHMFPZKA\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:844
    • C:\Users\Admin\AppData\Local\Temp\501cd09125b0d60c8612ee07d41aa6e0.exe
      C:\Users\Admin\AppData\Local\Temp\501cd09125b0d60c8612ee07d41aa6e0.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2060
    • C:\Users\Admin\AppData\Local\Temp\501cd09125b0d60c8612ee07d41aa6e0.exe
      C:\Users\Admin\AppData\Local\Temp\501cd09125b0d60c8612ee07d41aa6e0.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2080

Network

        MITRE ATT&CK Enterprise v15

        Reconnaissance

        Resource Development

        Initial Access

        Execution

        Scheduled Task/Job

        1
        T1053

        Scheduled Task

        1
        T1053.005

        Persistence

        Boot or Logon Autostart Execution

        1
        T1547

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Scheduled Task/Job

        1
        T1053

        Scheduled Task

        1
        T1053.005

        Privilege Escalation

        Abuse Elevation Control Mechanism

        1
        T1548

        Bypass User Account Control

        1
        T1548.002

        Boot or Logon Autostart Execution

        1
        T1547

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Scheduled Task/Job

        1
        T1053

        Scheduled Task

        1
        T1053.005

        Defense Evasion

        Abuse Elevation Control Mechanism

        1
        T1548

        Bypass User Account Control

        1
        T1548.002

        Hide Artifacts

        1
        T1564

        Hidden Files and Directories

        1
        T1564.001

        Impair Defenses

        1
        T1562

        Disable or Modify Tools

        1
        T1562.001

        Modify Registry

        3
        T1112

        Credential Access

        Discovery

        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

        501cd09125b0d60c8612ee07d41aa6e0.exe
        • Path C:\Users\Admin\AppData\Local\Temp\501cd09125b0d60c8612ee07d41aa6e0.exe
        • Size 134KB
        • SHA256 0ff34979bd780fdaabef5d9f97d20499ef8c60aaf7e82200c822894d8ecd8cb5
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        memory/1724-0-0x0000000074DD1000-0x0000000074DD2000-memory.dmp
        Download

        memory/1724-1-0x0000000074DD0000-0x000000007537B000-memory.dmp
        Download

        memory/1724-2-0x0000000074DD0000-0x000000007537B000-memory.dmp
        Download

        memory/1724-6-0x0000000074DD0000-0x000000007537B000-memory.dmp
        Download

        memory/1724-7-0x0000000074DD0000-0x000000007537B000-memory.dmp
        Download