Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    13-12-2021 09:01

General

  • Target

    RequestLetter 11DEC.exe

  • Size

    907KB

  • MD5

    eb62d3d13ff0e6dc6e3daa1b2513676c

  • SHA1

    98a8345372e8b6ff98826c35f55fe594384eb235

  • SHA256

    993e2502c86bc87766ee853a75c89ffe6a635383c685b1aea785364b7c101b59

  • SHA512

    0592c3a025423d1b718a9d05a0619a2939877f420123580e02343d830ede8789df6a661b7745d3a3f046a7c9f33431179188390ed9b8f577138703bd9af92042

Score
10/10

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

ef6c

C2

http://www.fis.photos/ef6c/

Decoy

gicaredocs.com

govusergroup.com

conversationspit.com

brondairy.com

rjtherealest.com

xn--9m1bq8wgkag3rjvb.com

mylori.net

softandcute.store

ahljsm.com

shacksolid.com

weekendmusecollection.com

gaminghallarna.net

pgonline111.online

44mpt.xyz

ambrandt.com

eddytattoo.com

blendeqes.com

upinmyfeels.com

lacucinadesign.com

docomoau.xyz

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • Xloader Payload 3 IoCs
  • Deletes itself 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 24 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1376
    • C:\Users\Admin\AppData\Local\Temp\RequestLetter 11DEC.exe
      "C:\Users\Admin\AppData\Local\Temp\RequestLetter 11DEC.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1892
      • C:\Users\Admin\AppData\Local\Temp\RequestLetter 11DEC.exe
        "C:\Users\Admin\AppData\Local\Temp\RequestLetter 11DEC.exe"
        3⤵
          PID:1428
        • C:\Users\Admin\AppData\Local\Temp\RequestLetter 11DEC.exe
          "C:\Users\Admin\AppData\Local\Temp\RequestLetter 11DEC.exe"
          3⤵
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:1028
      • C:\Windows\SysWOW64\wscript.exe
        "C:\Windows\SysWOW64\wscript.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:836
        • C:\Windows\SysWOW64\cmd.exe
          /c del "C:\Users\Admin\AppData\Local\Temp\RequestLetter 11DEC.exe"
          3⤵
          • Deletes itself
          PID:1076

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/836-68-0x0000000000000000-mapping.dmp
    • memory/836-73-0x0000000001F90000-0x0000000002020000-memory.dmp
      Filesize

      576KB

    • memory/836-71-0x0000000002080000-0x0000000002383000-memory.dmp
      Filesize

      3.0MB

    • memory/836-70-0x0000000000070000-0x0000000000099000-memory.dmp
      Filesize

      164KB

    • memory/836-69-0x00000000002C0000-0x00000000002E6000-memory.dmp
      Filesize

      152KB

    • memory/1028-63-0x000000000041D3D0-mapping.dmp
    • memory/1028-60-0x0000000000400000-0x0000000000429000-memory.dmp
      Filesize

      164KB

    • memory/1028-62-0x0000000000400000-0x0000000000429000-memory.dmp
      Filesize

      164KB

    • memory/1028-61-0x0000000000400000-0x0000000000429000-memory.dmp
      Filesize

      164KB

    • memory/1028-66-0x0000000000280000-0x0000000000291000-memory.dmp
      Filesize

      68KB

    • memory/1028-65-0x00000000009E0000-0x0000000000CE3000-memory.dmp
      Filesize

      3.0MB

    • memory/1076-72-0x0000000000000000-mapping.dmp
    • memory/1376-67-0x0000000007110000-0x00000000072A4000-memory.dmp
      Filesize

      1.6MB

    • memory/1376-74-0x0000000006B90000-0x0000000006CE8000-memory.dmp
      Filesize

      1.3MB

    • memory/1892-54-0x0000000000140000-0x0000000000141000-memory.dmp
      Filesize

      4KB

    • memory/1892-59-0x0000000005570000-0x0000000005686000-memory.dmp
      Filesize

      1.1MB

    • memory/1892-58-0x0000000000690000-0x0000000000697000-memory.dmp
      Filesize

      28KB

    • memory/1892-57-0x0000000004990000-0x0000000004991000-memory.dmp
      Filesize

      4KB

    • memory/1892-56-0x00000000751B1000-0x00000000751B3000-memory.dmp
      Filesize

      8KB