Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220310-en
  • submitted
    15-03-2022 15:41

General

  • Target

    f44d75390275e2f15ea0111de765cdaede7436331101363ba1db17b74f8cd88e.js

  • Size

    864KB

  • MD5

    fe330e62ee592637466d5def2358afa8

  • SHA1

    62bb2ec1f62e38b9c2605ba661b85ac10cddefe0

  • SHA256

    f44d75390275e2f15ea0111de765cdaede7436331101363ba1db17b74f8cd88e

  • SHA512

    ba59ac6e0070aae34b5cc98b6ba041f21fbbb52cd2e4551bc30a0570aa48175abb2c2aef14886bfc54128d080558e5dfd20f8800f572d7286dfa242c7032a9d2

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

qatv

Decoy

sexycurvycool.com

webundefinedstaging.website

gaspeehaze.com

adomnaturals.com

best10canadianreviews.info

nikekogan.com

5537sbishop.info

khonnaisoi.com

cures8t.com

garthoaks.com

belvederepharmagroup.com

chivo.plus

qishanlin.top

ccjon1.com

biz-financeagency.com

bdqimeng88.top

3-little-pigs.com

ord13route.art

webku-trial.xyz

ncgf28.xyz

Signatures

  • Vjw0rm

    Vjw0rm is a remote access trojan written in JavaScript.

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • suricata: ET MALWARE FormBook CnC Checkin (GET)

    suricata: ET MALWARE FormBook CnC Checkin (GET)

  • Xloader Payload 4 IoCs
  • Blocklisted process makes network request 6 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 62 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:1048
    • C:\Windows\system32\wscript.exe
      wscript.exe C:\Users\Admin\AppData\Local\Temp\f44d75390275e2f15ea0111de765cdaede7436331101363ba1db17b74f8cd88e.js
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:2516
      • C:\Windows\System32\wscript.exe
        "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\vFloVdiJJT.js"
        3⤵
        • Blocklisted process makes network request
        • Drops startup file
        • Adds Run key to start application
        PID:4284
      • C:\Users\Admin\AppData\Local\Temp\bin.exe
        "C:\Users\Admin\AppData\Local\Temp\bin.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:4556
    • C:\Windows\SysWOW64\control.exe
      "C:\Windows\SysWOW64\control.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4512
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\bin.exe"
        3⤵
          PID:1612

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\bin.exe
      MD5

      d2bc603d4e0e7011f2b8ba93bcd75293

      SHA1

      9fb2540d65441714cfcf7e4cc2432a96255f1f6d

      SHA256

      c70b39662e04b20fb68d78b0dc45694b6cc9c564c7c0535c286ee37fd1730d4b

      SHA512

      49835fc13efa9406fb7d7b85247013f45eeaa3e3cd9d1ae2a5c867f9231afae08c1051799b3b137f79476065035bedf5953d999da12e43a761dc369dfe90956b

    • C:\Users\Admin\AppData\Local\Temp\bin.exe
      MD5

      d2bc603d4e0e7011f2b8ba93bcd75293

      SHA1

      9fb2540d65441714cfcf7e4cc2432a96255f1f6d

      SHA256

      c70b39662e04b20fb68d78b0dc45694b6cc9c564c7c0535c286ee37fd1730d4b

      SHA512

      49835fc13efa9406fb7d7b85247013f45eeaa3e3cd9d1ae2a5c867f9231afae08c1051799b3b137f79476065035bedf5953d999da12e43a761dc369dfe90956b

    • C:\Users\Admin\AppData\Roaming\vFloVdiJJT.js
      MD5

      039b788c510573fb8d1c19038ad1ec14

      SHA1

      8c8928d097a198ddf6664d56191f74a9ac404804

      SHA256

      28b87f27295a93bedcd9aed6896971a7bc9317194968e6f1f532b2b47d972b2d

      SHA512

      a6755442e1936f61d35a6ce3af5c154fd0288a822029428c7675255aa97186b58185c2e53bdb94580256cc7c62eb6dce03cffff6388fd7942e699a020ecae00e

    • memory/1048-140-0x0000000002F50000-0x000000000302B000-memory.dmp
      Filesize

      876KB

    • memory/1048-145-0x00000000085A0000-0x000000000872F000-memory.dmp
      Filesize

      1.6MB

    • memory/4512-141-0x0000000000030000-0x0000000000057000-memory.dmp
      Filesize

      156KB

    • memory/4512-142-0x0000000000C00000-0x0000000000C29000-memory.dmp
      Filesize

      164KB

    • memory/4512-143-0x0000000002AD0000-0x0000000002E1A000-memory.dmp
      Filesize

      3.3MB

    • memory/4512-144-0x0000000002900000-0x0000000002990000-memory.dmp
      Filesize

      576KB

    • memory/4556-137-0x0000000000DD0000-0x000000000111A000-memory.dmp
      Filesize

      3.3MB

    • memory/4556-138-0x0000000000360000-0x0000000000389000-memory.dmp
      Filesize

      164KB

    • memory/4556-139-0x0000000000910000-0x0000000000921000-memory.dmp
      Filesize

      68KB