Analysis

  • max time kernel
    151s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-03-2024 15:54

General

  • Target

    Unpaid invoice.exe

  • Size

    450KB

  • MD5

    98d2d5ac3bd493d77f0a7300a43d045b

  • SHA1

    7fdd3b9b76f2c40df10def7ec3aa25c4fb192ec7

  • SHA256

    1bbc8a34b7590c1593c5a79a8d0f93b17a162f44893c37aa11e4cb9e0e2d96bf

  • SHA512

    32b7aa0518d6b41864d0f6f90d397cd377244b8f6af07178252aeb5b7ecf57e347c2aa2a3a4d94327d799bfcf8fe87b5c8164b0102c64258fd55a4c024ad0ef3

  • SSDEEP

    12288:g4fXqKkoo4mdIaFOyzsfUvCqqTb+3e3DcGv2:9PbkoodWaEXU6P/2

Score
10/10

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

b2c0

Decoy

bjyxszd520.xyz

hsvfingerprinting.com

elliotpioneer.com

bf396.com

chinaopedia.com

6233v.com

shopeuphoricapparel.com

loccssol.store

truefictionpictures.com

playstarexch.com

peruviancoffee.store

shobhajoshi.com

philme.net

avito-rules.com

independencehomecenters.com

atp-cayenne.com

invetorsbank.com

sasanos.com

scentfreebnb.com

catfuid.com

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • Xloader payload 4 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 62 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3380
    • C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe
      "C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:4280
      • C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe
        "C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:1096
    • C:\Windows\SysWOW64\cmstp.exe
      "C:\Windows\SysWOW64\cmstp.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4340
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe"
        3⤵
          PID:1016

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\nsu77D1.tmp\gyalquzbu.dll

      Filesize

      33KB

      MD5

      a8caa6d267951ad22e835233b5e50c46

      SHA1

      45c722c5958d99727a95d30eaa3032203d1f4ab2

      SHA256

      db7b70b0734285b8d9a1f3617e55603b0cb649d9bf0b7fbf8988c44e684f4e76

      SHA512

      9ee74bf576554210f8923dda8aa28f6dc7f3c5aa52da7b48a94beaf56cb4e27f1c3d0387cc9116e467631bc13c0e743341129bffa84b9db16ace1248a53b4cd7

    • memory/1096-8-0x0000000000400000-0x0000000000429000-memory.dmp

      Filesize

      164KB

    • memory/1096-9-0x0000000000B00000-0x0000000000E4A000-memory.dmp

      Filesize

      3.3MB

    • memory/1096-11-0x0000000000400000-0x0000000000429000-memory.dmp

      Filesize

      164KB

    • memory/1096-12-0x0000000000600000-0x0000000000611000-memory.dmp

      Filesize

      68KB

    • memory/3380-23-0x00000000091B0000-0x0000000009329000-memory.dmp

      Filesize

      1.5MB

    • memory/3380-13-0x00000000091B0000-0x0000000009329000-memory.dmp

      Filesize

      1.5MB

    • memory/3380-26-0x0000000003430000-0x0000000003513000-memory.dmp

      Filesize

      908KB

    • memory/3380-27-0x0000000003430000-0x0000000003513000-memory.dmp

      Filesize

      908KB

    • memory/3380-30-0x0000000003430000-0x0000000003513000-memory.dmp

      Filesize

      908KB

    • memory/4340-16-0x0000000000680000-0x0000000000696000-memory.dmp

      Filesize

      88KB

    • memory/4340-17-0x0000000000680000-0x0000000000696000-memory.dmp

      Filesize

      88KB

    • memory/4340-18-0x00000000004E0000-0x0000000000509000-memory.dmp

      Filesize

      164KB

    • memory/4340-19-0x00000000023F0000-0x000000000273A000-memory.dmp

      Filesize

      3.3MB

    • memory/4340-20-0x00000000004E0000-0x0000000000509000-memory.dmp

      Filesize

      164KB

    • memory/4340-22-0x0000000002290000-0x0000000002320000-memory.dmp

      Filesize

      576KB