Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    06-12-2021 07:24

General

  • Target

    KBH-209294916.js

  • Size

    317KB

  • MD5

    7af00552a9b9ae64342d289f60c43627

  • SHA1

    dae12e7429417f66e4419bfc6cb1b0f1e820c7c9

  • SHA256

    4dd51675717f0f703ecbfa8e39c69a3038d2a3a42927a1cb5ab0271d3bfebbb4

  • SHA512

    dbde91eaf3dff80b491e96336d90992f8ce3251e4ce3dd4f510135fedd7ef3b8810daaa4171eb64805780500e2ff5a44b1501ae0467eeba2b5d29254059e3f07

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

pzi0

C2

http://www.buffstaff.com/pzi0/

Decoy

laylmodest.com

woruke.club

metaverseslots.net

syscogent.net

aluxxenterprise.com

lm-solar.com

lightempirestore.com

witcheboutique.com

hometech-bosch.xyz

expert-netcad.com

poteconomist.com

mycousinsfriend.biz

shineveranda.com

collegedictionary.cloud

zqlidexx.com

businessesopportunity.com

2utalahs4.com

participatetn.info

dare2ownit.com

varser.com

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 3 IoCs
  • Blocklisted process makes network request 19 IoCs
  • Executes dropped EXE 3 IoCs
  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 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 52 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:2416
    • C:\Windows\system32\wscript.exe
      wscript.exe C:\Users\Admin\AppData\Local\Temp\KBH-209294916.js
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2020
      • C:\Windows\System32\wscript.exe
        "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\pYpNUJIEMR.js"
        3⤵
        • Blocklisted process makes network request
        • Drops startup file
        • Adds Run key to start application
        PID:3920
      • C:\Users\Admin\AppData\Local\Temp\business1.exe
        "C:\Users\Admin\AppData\Local\Temp\business1.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4196
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection www.yahoo.com
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:632
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection www.bing.com
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3496
        • C:\Users\Admin\AppData\Local\Temp\business1.exe
          C:\Users\Admin\AppData\Local\Temp\business1.exe
          4⤵
          • Executes dropped EXE
          PID:1444
        • C:\Users\Admin\AppData\Local\Temp\business1.exe
          C:\Users\Admin\AppData\Local\Temp\business1.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          PID:408
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\SysWOW64\netsh.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1312
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\business1.exe"
        3⤵
          PID:1228

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

      MD5

      a4022a7d2b113226b000be0705680813

      SHA1

      599e22d03201704127a045ca53ffb78f9ea3b6c3

      SHA256

      2557a14e476d55330043af2858dbf1377e24dba3fa9aedc369d5feefefb7f9a7

      SHA512

      40ef88632a4ad38a7d21c640a7f0c8cd7c76b8451f55dd758c15baa5a90f4f0938de409426570c4405362fd2d90fadd96d23d190e09692b5fbe2c87ebc8d3c60

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      MD5

      087f71eb3a7a2c772ebf112babfdade8

      SHA1

      8adcd795c7b9bf46bf7d3a7b8e4cda611f8c0f4f

      SHA256

      62a00b06b7ab1b5ac4b28314a66fc4c18a9188fa96c16283b6ecdff003ad3dc6

      SHA512

      9a89cd483bc3af9af3ecb053bef104cbfaaf7caed9a624d0b757cc2aee5c3797698b7b168bb2d663d1fdcf016e78d655457a5708d446d4df26a4d43d59f83b00

    • C:\Users\Admin\AppData\Local\Temp\business1.exe

      MD5

      02210ee8684c318e39358bdb0e4f4956

      SHA1

      6e8f72016e4977b587ddb5369bfbb9b79dc09104

      SHA256

      ff6941f913740a953c2878ab6bf852e5dfe92f5464f3ca41e86fbe6b6b3a1ef7

      SHA512

      31de499132a35378320037c0c1a7598b3379919ce5cc42a73fe3e8afe84265f7733c94f5342d35041558092983840670c1a637ce0daceca5bedf91de0514bf96

    • C:\Users\Admin\AppData\Local\Temp\business1.exe

      MD5

      02210ee8684c318e39358bdb0e4f4956

      SHA1

      6e8f72016e4977b587ddb5369bfbb9b79dc09104

      SHA256

      ff6941f913740a953c2878ab6bf852e5dfe92f5464f3ca41e86fbe6b6b3a1ef7

      SHA512

      31de499132a35378320037c0c1a7598b3379919ce5cc42a73fe3e8afe84265f7733c94f5342d35041558092983840670c1a637ce0daceca5bedf91de0514bf96

    • C:\Users\Admin\AppData\Local\Temp\business1.exe

      MD5

      02210ee8684c318e39358bdb0e4f4956

      SHA1

      6e8f72016e4977b587ddb5369bfbb9b79dc09104

      SHA256

      ff6941f913740a953c2878ab6bf852e5dfe92f5464f3ca41e86fbe6b6b3a1ef7

      SHA512

      31de499132a35378320037c0c1a7598b3379919ce5cc42a73fe3e8afe84265f7733c94f5342d35041558092983840670c1a637ce0daceca5bedf91de0514bf96

    • C:\Users\Admin\AppData\Local\Temp\business1.exe

      MD5

      02210ee8684c318e39358bdb0e4f4956

      SHA1

      6e8f72016e4977b587ddb5369bfbb9b79dc09104

      SHA256

      ff6941f913740a953c2878ab6bf852e5dfe92f5464f3ca41e86fbe6b6b3a1ef7

      SHA512

      31de499132a35378320037c0c1a7598b3379919ce5cc42a73fe3e8afe84265f7733c94f5342d35041558092983840670c1a637ce0daceca5bedf91de0514bf96

    • C:\Users\Admin\AppData\Roaming\pYpNUJIEMR.js

      MD5

      56394f31c4ebe4c2569a078dc11f8b59

      SHA1

      72746e1bf2ab9def45d0bb3ecb09fbe42a132271

      SHA256

      1e5307933ab0b9a516b099fd4ffbcd0a80cb057076fd932fe3d70b257191226a

      SHA512

      b06d914c1c658d67414be6332c8855e462c3b4e59dfeb3b8cac6dca882795448f6ea664cfa9e83c30b0a7354a959c521c892dd4e4aad390b001f304abb716ca1

    • memory/408-331-0x0000000001330000-0x0000000001341000-memory.dmp

      Filesize

      68KB

    • memory/408-329-0x0000000001450000-0x0000000001770000-memory.dmp

      Filesize

      3.1MB

    • memory/408-328-0x0000000000400000-0x0000000000429000-memory.dmp

      Filesize

      164KB

    • memory/408-326-0x000000000041D480-mapping.dmp

    • memory/632-132-0x00000000074E0000-0x00000000074E1000-memory.dmp

      Filesize

      4KB

    • memory/632-143-0x0000000003610000-0x0000000003611000-memory.dmp

      Filesize

      4KB

    • memory/632-128-0x0000000000000000-mapping.dmp

    • memory/632-133-0x0000000005070000-0x0000000005071000-memory.dmp

      Filesize

      4KB

    • memory/632-134-0x0000000007B20000-0x0000000007B21000-memory.dmp

      Filesize

      4KB

    • memory/632-135-0x0000000008150000-0x0000000008151000-memory.dmp

      Filesize

      4KB

    • memory/632-136-0x0000000008430000-0x0000000008431000-memory.dmp

      Filesize

      4KB

    • memory/632-137-0x00000000084A0000-0x00000000084A1000-memory.dmp

      Filesize

      4KB

    • memory/632-138-0x0000000008510000-0x0000000008511000-memory.dmp

      Filesize

      4KB

    • memory/632-139-0x0000000008860000-0x0000000008861000-memory.dmp

      Filesize

      4KB

    • memory/632-141-0x00000000074E2000-0x00000000074E3000-memory.dmp

      Filesize

      4KB

    • memory/632-140-0x0000000008890000-0x0000000008891000-memory.dmp

      Filesize

      4KB

    • memory/632-142-0x0000000008B00000-0x0000000008B01000-memory.dmp

      Filesize

      4KB

    • memory/632-129-0x0000000003610000-0x0000000003611000-memory.dmp

      Filesize

      4KB

    • memory/632-147-0x0000000009BA0000-0x0000000009BA1000-memory.dmp

      Filesize

      4KB

    • memory/632-148-0x0000000008E20000-0x0000000008E21000-memory.dmp

      Filesize

      4KB

    • memory/632-149-0x00000000098C0000-0x00000000098C1000-memory.dmp

      Filesize

      4KB

    • memory/632-157-0x000000000ACC0000-0x000000000ACC1000-memory.dmp

      Filesize

      4KB

    • memory/632-174-0x00000000074E3000-0x00000000074E4000-memory.dmp

      Filesize

      4KB

    • memory/632-130-0x0000000003610000-0x0000000003611000-memory.dmp

      Filesize

      4KB

    • memory/1228-334-0x0000000000000000-mapping.dmp

    • memory/1312-338-0x0000000000B60000-0x0000000000BF0000-memory.dmp

      Filesize

      576KB

    • memory/1312-337-0x0000000003030000-0x0000000003350000-memory.dmp

      Filesize

      3.1MB

    • memory/1312-335-0x0000000001010000-0x000000000102E000-memory.dmp

      Filesize

      120KB

    • memory/1312-336-0x00000000001A0000-0x00000000001C9000-memory.dmp

      Filesize

      164KB

    • memory/1312-333-0x0000000000000000-mapping.dmp

    • memory/2416-332-0x0000000004F80000-0x000000000509F000-memory.dmp

      Filesize

      1.1MB

    • memory/2416-339-0x0000000002440000-0x0000000002522000-memory.dmp

      Filesize

      904KB

    • memory/3496-224-0x0000000000000000-mapping.dmp

    • memory/3496-255-0x0000000004CC3000-0x0000000004CC4000-memory.dmp

      Filesize

      4KB

    • memory/3496-239-0x0000000004CC2000-0x0000000004CC3000-memory.dmp

      Filesize

      4KB

    • memory/3496-238-0x0000000004CC0000-0x0000000004CC1000-memory.dmp

      Filesize

      4KB

    • memory/3920-118-0x0000000000000000-mapping.dmp

    • memory/4196-123-0x0000000000860000-0x0000000000861000-memory.dmp

      Filesize

      4KB

    • memory/4196-120-0x0000000000000000-mapping.dmp

    • memory/4196-125-0x0000000005760000-0x0000000005761000-memory.dmp

      Filesize

      4KB

    • memory/4196-126-0x0000000005300000-0x0000000005301000-memory.dmp

      Filesize

      4KB

    • memory/4196-127-0x0000000005200000-0x0000000005201000-memory.dmp

      Filesize

      4KB

    • memory/4196-131-0x00000000051C0000-0x00000000051C1000-memory.dmp

      Filesize

      4KB