Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    21-10-2021 13:39

General

  • Target

    REQUEST FOR QUOTATION.exe

  • Size

    254KB

  • MD5

    cc19c69f756ab25010c68a64b03f2eee

  • SHA1

    48e28f2fcb7a13efa879b99b14ba52571b6e5224

  • SHA256

    ac4a0328d512526f20122f0399d557b1334f3b2ac264d9e749d6d2788e956b2e

  • SHA512

    6a0caa9934e2c4366e312be5b6ce60e0d3ffb715ee6d97eaf13dc4cd485d305e2972868624e4460b5076ff0eec1a94ba20199f2502ab290a584b0705ff12d762

Score
10/10

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

epz2

C2

http://www.pofungrealty.com/epz2/

Decoy

moslemco.com

besrbee.com

in-teh.com

fofomej.xyz

partner2form.com

codigocentro.com

thgn29.xyz

behindwp.com

oliviatevents.com

jammineugene.com

colobohieran.quest

freidenfelt.com

ribbitathleticwear.com

dreamlylife.com

hotelcxn.com

preciosaglass.com

lawaves.net

thatsnotmydriveway.com

northportbusinesscenter.com

dayinamman.com

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • Xloader Payload 3 IoCs
  • Blocklisted process makes network request 1 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 60 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:3024
    • C:\Users\Admin\AppData\Local\Temp\REQUEST FOR QUOTATION.exe
      "C:\Users\Admin\AppData\Local\Temp\REQUEST FOR QUOTATION.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:316
      • C:\Users\Admin\AppData\Local\Temp\REQUEST FOR QUOTATION.exe
        "C:\Users\Admin\AppData\Local\Temp\REQUEST FOR QUOTATION.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:3232
    • C:\Windows\SysWOW64\cscript.exe
      "C:\Windows\SysWOW64\cscript.exe"
      2⤵
      • Blocklisted process makes network request
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:436
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\REQUEST FOR QUOTATION.exe"
        3⤵
          PID:364

    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\nsbC814.tmp\skjesair.dll
      MD5

      f9099ad46c16a20b52f173f5806426bf

      SHA1

      b7543e7af6930e16520f41bc0c3e5fdd5f1ce45d

      SHA256

      e80f972bce5004dfe27ca8a8063f354be8b0b618119db1e706242d28217e02ca

      SHA512

      6d6c2aec061cdc3e34b7774e1a16971f246b79da659bc8140d0965130a54bf81f57ad50d56314b5b5f551eb1d24e15d2d6131e041665dc3ecb921af3a426cdc1

    • memory/364-125-0x0000000000000000-mapping.dmp
    • memory/436-122-0x0000000000000000-mapping.dmp
    • memory/436-123-0x0000000000A50000-0x0000000000A77000-memory.dmp
      Filesize

      156KB

    • memory/436-124-0x00000000007B0000-0x00000000007D9000-memory.dmp
      Filesize

      164KB

    • memory/436-126-0x0000000004B20000-0x0000000004E40000-memory.dmp
      Filesize

      3.1MB

    • memory/436-127-0x0000000004980000-0x0000000004A10000-memory.dmp
      Filesize

      576KB

    • memory/3024-121-0x0000000002F70000-0x000000000305A000-memory.dmp
      Filesize

      936KB

    • memory/3024-128-0x0000000006490000-0x00000000065C5000-memory.dmp
      Filesize

      1.2MB

    • memory/3232-120-0x00000000006D0000-0x00000000006E1000-memory.dmp
      Filesize

      68KB

    • memory/3232-119-0x0000000000B40000-0x0000000000E60000-memory.dmp
      Filesize

      3.1MB

    • memory/3232-117-0x000000000041D450-mapping.dmp
    • memory/3232-116-0x0000000000400000-0x0000000000429000-memory.dmp
      Filesize

      164KB