Analysis

  • max time kernel
    150s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    02-04-2024 21:33

General

  • Target

    $PLUGINSDIR/nrxdd.dll

  • Size

    42KB

  • MD5

    5a5c717c752014c115f8cd5269d09230

  • SHA1

    9e98b8f7fc33c2a635b7fafae816e70a991db637

  • SHA256

    bbd19853959f6a7e000b9bd1880416753f9129294efc7b5eba835891b4034459

  • SHA512

    350f82e6eda8687197d911cddd6d84f734e77f63d538062c49298076db297907643f8771544000d4697d5c3f3995b488ef787a5ba132c89f6b2fba6b5be9a361

  • SSDEEP

    768:fAidP+QzDl79yqZw0yAkKjGZbjtY7xgUnNfzyX6ZAunOVfG2WgkhRw:fAMWQzh7kqfkRtY1gQ06ZAumkM

Score
10/10

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

b65i

Decoy

leofighters.com

smartat2.xyz

encontrevariedades.com

jimwilliamstutoring.com

kanpaiecuador.com

accura-inv.com

xtzgjxzz.com

scentstrategies.com

high-clicks2.com

hadishgebray.com

woodlawnbailbonds.com

dmsolutionsco.com

rdvulm21.com

beachyweens.com

ishirmansingh.com

rimmasbracelets.com

kellibrat.com

roselmasm.com

datkamoney.info

fermers.club

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • Xloader payload 5 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 31 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1240
    • C:\Windows\system32\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nrxdd.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2236
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nrxdd.dll,#1
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2100
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nrxdd.dll,#1
          4⤵
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:1656
    • C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\SysWOW64\explorer.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2860
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Windows\SysWOW64\rundll32.exe"
        3⤵
          PID:2388

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1240-7-0x0000000003AF0000-0x0000000003CF0000-memory.dmp

      Filesize

      2.0MB

    • memory/1240-22-0x0000000006FA0000-0x00000000070F6000-memory.dmp

      Filesize

      1.3MB

    • memory/1240-13-0x0000000006FA0000-0x00000000070F6000-memory.dmp

      Filesize

      1.3MB

    • memory/1240-11-0x0000000007280000-0x000000000740A000-memory.dmp

      Filesize

      1.5MB

    • memory/1240-8-0x0000000007280000-0x000000000740A000-memory.dmp

      Filesize

      1.5MB

    • memory/1656-10-0x0000000000400000-0x0000000000429000-memory.dmp

      Filesize

      164KB

    • memory/1656-1-0x0000000000400000-0x0000000000429000-memory.dmp

      Filesize

      164KB

    • memory/1656-5-0x0000000000400000-0x0000000000429000-memory.dmp

      Filesize

      164KB

    • memory/1656-12-0x00000000001E0000-0x00000000001F1000-memory.dmp

      Filesize

      68KB

    • memory/1656-3-0x00000000022D0000-0x00000000025D3000-memory.dmp

      Filesize

      3.0MB

    • memory/1656-6-0x00000000001A0000-0x00000000001B1000-memory.dmp

      Filesize

      68KB

    • memory/2100-0-0x0000000010000000-0x000000001000D000-memory.dmp

      Filesize

      52KB

    • memory/2100-2-0x0000000010000000-0x000000001000D000-memory.dmp

      Filesize

      52KB

    • memory/2860-14-0x0000000000520000-0x00000000007A1000-memory.dmp

      Filesize

      2.5MB

    • memory/2860-16-0x00000000000C0000-0x00000000000E9000-memory.dmp

      Filesize

      164KB

    • memory/2860-17-0x00000000023B0000-0x00000000026B3000-memory.dmp

      Filesize

      3.0MB

    • memory/2860-18-0x00000000000C0000-0x00000000000E9000-memory.dmp

      Filesize

      164KB

    • memory/2860-20-0x0000000002170000-0x0000000002200000-memory.dmp

      Filesize

      576KB

    • memory/2860-15-0x0000000000520000-0x00000000007A1000-memory.dmp

      Filesize

      2.5MB