Analysis

  • max time kernel
    137s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    28-10-2021 17:16

General

  • Target

    PI_.exe

  • Size

    296KB

  • MD5

    3838c43e12f0c22ecf9a9a0c1deb1d30

  • SHA1

    7b9d8e4a093672411f71f1cf6a7fe6803c61773c

  • SHA256

    b980dfcce93e9140d8ce71151f2f385026b8cebc195b71055707e1468ad0131b

  • SHA512

    f0f860a56500b449b29558dc6e8860ce4441cee2612cc22c7cb9aaf5106062e290e3b3313dd0eef55fe1678791992f0502dbda9d0350110b7f7591853445935c

Score
10/10

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

unzn

C2

http://www.davanamays.com/unzn/

Decoy

xiulf.com

highcountrymortar.com

523561.com

marketingagency.tools

ganmovie.net

nationaalcontactpunt.com

sirrbter.com

begizas.xyz

missimi-fashion.com

munixc.info

daas.support

spaceworbc.com

faithtruthresolve.com

gymkub.com

thegrayverse.xyz

artisanmakefurniture.com

029tryy.com

ijuubx.biz

iphone13promax.club

techuniversus.com

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • Xloader Payload 3 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). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    PID:1304
    • C:\Users\Admin\AppData\Local\Temp\PI_.exe
      "C:\Users\Admin\AppData\Local\Temp\PI_.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1656
      • C:\Users\Admin\AppData\Local\Temp\PI_.exe
        "C:\Users\Admin\AppData\Local\Temp\PI_.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:788
        • C:\Windows\SysWOW64\autochk.exe
          "C:\Windows\SysWOW64\autochk.exe"
          4⤵
            PID:328

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \Users\Admin\AppData\Local\Temp\nsyC073.tmp\qdubg.dll
      MD5

      55a776d0472c31ed04059c11c38d7953

      SHA1

      ffaf336496a3f5333eb50347d22f58aa167f6dfe

      SHA256

      19ee07473845faf92de1dc004133078ed730a9ca95a577a0300e9b3a4384a448

      SHA512

      2e221116a744682de53ca10eb9aed09d703ffd19e8140936be98900293eb74fcbb295bc32817b712a7c1ad6d3ea946374b96e0ad758b7c88dbfa15e25a5eb071

    • memory/788-57-0x0000000000400000-0x0000000000429000-memory.dmp
      Filesize

      164KB

    • memory/788-58-0x000000000041D430-mapping.dmp
    • memory/788-61-0x0000000000340000-0x0000000000351000-memory.dmp
      Filesize

      68KB

    • memory/788-60-0x00000000008E0000-0x0000000000BE3000-memory.dmp
      Filesize

      3.0MB

    • memory/788-63-0x0000000000400000-0x0000000000429000-memory.dmp
      Filesize

      164KB

    • memory/788-64-0x0000000000390000-0x00000000003A1000-memory.dmp
      Filesize

      68KB

    • memory/1304-62-0x00000000062F0000-0x00000000063E2000-memory.dmp
      Filesize

      968KB

    • memory/1304-65-0x0000000007570000-0x0000000007711000-memory.dmp
      Filesize

      1.6MB

    • memory/1656-55-0x0000000075B71000-0x0000000075B73000-memory.dmp
      Filesize

      8KB