Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-12-2022 22:46

General

  • Target

    jetss4321.exe

  • Size

    213KB

  • MD5

    0f558015aea4fab0704f0a81241c95de

  • SHA1

    701d1f39fd047f93543d63fa93b7cdf6ef29d1ee

  • SHA256

    983fe597e0687a206126a3a25d356b3f30431883e692fb1744c7d655b9b6ee59

  • SHA512

    19da1777a225f9d9f59717506758eb448721d1ed534338919a181d1a5471a116560601125e5cda4f75e4720f962dfada522cabcede7a633bf36ea40c8f638425

  • SSDEEP

    6144:qweEpTH0JdteiykaUKT3CR+AVTCkTgp3c2n7Zp:bD0JWkICEk2ki3c41p

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

je14

Decoy

innervisionbuildings.com

theenergysocialite.com

565548.com

panghr.com

onlyonesolutions.com

stjohnzone6.com

cnotes.rest

helfeb.online

xixi-s-inc.club

easilyentered.com

theshopx.store

mrclean-ac.com

miamibeachwateradventures.com

jpearce.co.uk

seseragi-bunkou.com

minimaddie.com

commbank-help-849c3.com

segohandelsonderneming.com

namthanhreal.com

fototerapi.online

Signatures

  • Formbook

    Formbook is a data stealing malware which is capable of stealing data.

  • Formbook payload 3 IoCs
  • Executes dropped EXE 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 60 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:3064
    • C:\Users\Admin\AppData\Local\Temp\jetss4321.exe
      "C:\Users\Admin\AppData\Local\Temp\jetss4321.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4972
      • C:\Users\Admin\AppData\Local\Temp\dddlirbk.exe
        "C:\Users\Admin\AppData\Local\Temp\dddlirbk.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:2100
        • C:\Users\Admin\AppData\Local\Temp\dddlirbk.exe
          "C:\Users\Admin\AppData\Local\Temp\dddlirbk.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:4164
    • C:\Windows\SysWOW64\raserver.exe
      "C:\Windows\SysWOW64\raserver.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4060
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\dddlirbk.exe"
        3⤵
          PID:5020

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\bqinymrhxf.yg
      Filesize

      5KB

      MD5

      1aaeec34da067db10371ba0d65bd2fdf

      SHA1

      ab511719298e745360040a627d96ddba9f5aa9c5

      SHA256

      1f0a4869a22601f432ba6b2630ee4b7b30d2a924cc18df5dda45ff89734c8931

      SHA512

      22f2a8db2a256d919144a299b49c8f59193255a2ac53eed793cff20996e79ffe26fd0266bce143128d95ca2dc4863e835540068a5e51895025bf664272defca9

    • C:\Users\Admin\AppData\Local\Temp\dddlirbk.exe
      Filesize

      6KB

      MD5

      4e60205c6fc0bbcb23c9ca921ec6729a

      SHA1

      a4b6d99ccab3feed7201d12afa33af49fee0375c

      SHA256

      09c8312b73373be5eebddda230dc71540ca14b3ace63e3193410a8cde8e905c4

      SHA512

      688afd27f6f1bef55f4ccb042037015e979e67c4d56a37340f45080ca690a18f9d168a6c4f8653c6e3da253b36e26191b504ee0c7eafd43a43fa2c82f6fa5d8b

    • C:\Users\Admin\AppData\Local\Temp\dddlirbk.exe
      Filesize

      6KB

      MD5

      4e60205c6fc0bbcb23c9ca921ec6729a

      SHA1

      a4b6d99ccab3feed7201d12afa33af49fee0375c

      SHA256

      09c8312b73373be5eebddda230dc71540ca14b3ace63e3193410a8cde8e905c4

      SHA512

      688afd27f6f1bef55f4ccb042037015e979e67c4d56a37340f45080ca690a18f9d168a6c4f8653c6e3da253b36e26191b504ee0c7eafd43a43fa2c82f6fa5d8b

    • C:\Users\Admin\AppData\Local\Temp\dddlirbk.exe
      Filesize

      6KB

      MD5

      4e60205c6fc0bbcb23c9ca921ec6729a

      SHA1

      a4b6d99ccab3feed7201d12afa33af49fee0375c

      SHA256

      09c8312b73373be5eebddda230dc71540ca14b3ace63e3193410a8cde8e905c4

      SHA512

      688afd27f6f1bef55f4ccb042037015e979e67c4d56a37340f45080ca690a18f9d168a6c4f8653c6e3da253b36e26191b504ee0c7eafd43a43fa2c82f6fa5d8b

    • C:\Users\Admin\AppData\Local\Temp\dzotwnqy.hu
      Filesize

      185KB

      MD5

      3bea76e24c8cb495dee7e2a748025d30

      SHA1

      9f10de59f3dfb639e6fbe4236854fa73d6f78991

      SHA256

      765bed83e6d866446fcd3fe7398f97e889c21a57f6bb4c2bd552c48e1b074a32

      SHA512

      0a05cace5349e733526f51e2db95a794695fe71f8bcb645401a955d66dcd3d0b7af486df3572ad2fc9825d173edd243ffeab33e106abcead508c114c03c22592

    • memory/2100-132-0x0000000000000000-mapping.dmp
    • memory/3064-142-0x0000000007AF0000-0x0000000007BCC000-memory.dmp
      Filesize

      880KB

    • memory/3064-151-0x0000000008010000-0x0000000008186000-memory.dmp
      Filesize

      1.5MB

    • memory/3064-149-0x0000000008010000-0x0000000008186000-memory.dmp
      Filesize

      1.5MB

    • memory/4060-147-0x00000000024D0000-0x000000000281A000-memory.dmp
      Filesize

      3.3MB

    • memory/4060-143-0x0000000000000000-mapping.dmp
    • memory/4060-145-0x0000000000400000-0x000000000042F000-memory.dmp
      Filesize

      188KB

    • memory/4060-144-0x0000000000BB0000-0x0000000000BCF000-memory.dmp
      Filesize

      124KB

    • memory/4060-148-0x0000000002210000-0x00000000022A3000-memory.dmp
      Filesize

      588KB

    • memory/4060-150-0x0000000000400000-0x000000000042F000-memory.dmp
      Filesize

      188KB

    • memory/4164-141-0x0000000000E00000-0x0000000000E14000-memory.dmp
      Filesize

      80KB

    • memory/4164-140-0x0000000001290000-0x00000000015DA000-memory.dmp
      Filesize

      3.3MB

    • memory/4164-139-0x0000000000400000-0x000000000042F000-memory.dmp
      Filesize

      188KB

    • memory/4164-137-0x0000000000000000-mapping.dmp
    • memory/5020-146-0x0000000000000000-mapping.dmp