Analysis

  • max time kernel
    169s
  • max time network
    171s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 14:39

General

  • Target

    jetsjest4321.exe

  • Size

    221KB

  • MD5

    a818ccc5ba40d21ffd7976450afdffd8

  • SHA1

    169c5175d227ecb5f5ca1b7f94a950252510d280

  • SHA256

    f096f1b61ce802816976386c76224c9174aacdbb5516b37128c90849deb3addc

  • SHA512

    9b1c7fd187ed76692611280ca18903c924e9eac0e0b1fc50122242872ba68e4b82e88f304de4751ed6d880dc72937c191a0242a89b7c6d39cb292b98ca3cf221

  • SSDEEP

    3072:WfJSq+ytGIon9KcSM49DB5TqFRhzmuhcrhVqefleb+8OOvQDni8OFlGmytV+4VEO:MEa0N4j5mw8crf9IoDhzn+b5e5ETOhv

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 2 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 58 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 7 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:780
    • C:\Users\Admin\AppData\Local\Temp\jetsjest4321.exe
      "C:\Users\Admin\AppData\Local\Temp\jetsjest4321.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1416
      • C:\Users\Admin\AppData\Local\Temp\ltylx.exe
        "C:\Users\Admin\AppData\Local\Temp\ltylx.exe" C:\Users\Admin\AppData\Local\Temp\ibagsul.bfa
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:2108
        • C:\Users\Admin\AppData\Local\Temp\ltylx.exe
          "C:\Users\Admin\AppData\Local\Temp\ltylx.exe" C:\Users\Admin\AppData\Local\Temp\ibagsul.bfa
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:1736
    • C:\Windows\SysWOW64\help.exe
      "C:\Windows\SysWOW64\help.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2196
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\ltylx.exe"
        3⤵
          PID:3168

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\bnibs.ud

      Filesize

      185KB

      MD5

      451cc2d8a58d6f16a12b1540e5508e90

      SHA1

      94f862e0146f07956109f13b2fdada5f42134107

      SHA256

      c2f9553e56b24aa643be907333fef74e754c85abfd1ce9575d9eea82675e6004

      SHA512

      1a19cc6223b59e3dbaf47b1ca205febf45cfb437806c0688992e690409f86678eb0715d797eca0ee6a82280787171eb70f964b685fcb58b7ab3813b58d5269b9

    • C:\Users\Admin\AppData\Local\Temp\ibagsul.bfa

      Filesize

      5KB

      MD5

      b9506fcf0615bfdcdcc9a59fa6fc738d

      SHA1

      07f7c933403dae801b95aceb5644b340bf54f28a

      SHA256

      dd6a5fd5e3e7cc978caf25ea67a14e3509ceb80ebef78671c3433227ed2bf834

      SHA512

      139026f6e1ae0c64093a303035f82bca28890421496a8820730dfc47a4f3d3492188be2200c726bfa53a0f94ea98070774e022f4c6080abf78511a6f3fd2b176

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

      Filesize

      7KB

      MD5

      b18c813bcde330f38bb21fd66ca2cccc

      SHA1

      ed2f3d0bab90a9bf52652cdfccf11a676b7b8f69

      SHA256

      4de10b78e4908438e444e50d0cebaba065b79ebe606951cae0c83120f2b2e2fc

      SHA512

      179965d27db4bd406ce7fc81cee6f2574be34650dc43450c8f3e5beb5262594793de2da6e994166db7619f1dcfc1c7b23ca5b21838837e4579ab1eac4b32abab

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

      Filesize

      7KB

      MD5

      b18c813bcde330f38bb21fd66ca2cccc

      SHA1

      ed2f3d0bab90a9bf52652cdfccf11a676b7b8f69

      SHA256

      4de10b78e4908438e444e50d0cebaba065b79ebe606951cae0c83120f2b2e2fc

      SHA512

      179965d27db4bd406ce7fc81cee6f2574be34650dc43450c8f3e5beb5262594793de2da6e994166db7619f1dcfc1c7b23ca5b21838837e4579ab1eac4b32abab

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

      Filesize

      7KB

      MD5

      b18c813bcde330f38bb21fd66ca2cccc

      SHA1

      ed2f3d0bab90a9bf52652cdfccf11a676b7b8f69

      SHA256

      4de10b78e4908438e444e50d0cebaba065b79ebe606951cae0c83120f2b2e2fc

      SHA512

      179965d27db4bd406ce7fc81cee6f2574be34650dc43450c8f3e5beb5262594793de2da6e994166db7619f1dcfc1c7b23ca5b21838837e4579ab1eac4b32abab

    • memory/780-150-0x0000000007E70000-0x0000000007FE1000-memory.dmp

      Filesize

      1.4MB

    • memory/780-149-0x0000000007E70000-0x0000000007FE1000-memory.dmp

      Filesize

      1.4MB

    • memory/780-141-0x00000000078C0000-0x00000000079AE000-memory.dmp

      Filesize

      952KB

    • memory/1736-140-0x0000000000650000-0x0000000000664000-memory.dmp

      Filesize

      80KB

    • memory/1736-139-0x0000000000C30000-0x0000000000F7A000-memory.dmp

      Filesize

      3.3MB

    • memory/1736-137-0x0000000000000000-mapping.dmp

    • memory/2108-132-0x0000000000000000-mapping.dmp

    • memory/2196-142-0x0000000000000000-mapping.dmp

    • memory/2196-144-0x0000000000E00000-0x0000000000E07000-memory.dmp

      Filesize

      28KB

    • memory/2196-145-0x0000000000FC0000-0x000000000130A000-memory.dmp

      Filesize

      3.3MB

    • memory/2196-146-0x0000000000860000-0x000000000088F000-memory.dmp

      Filesize

      188KB

    • memory/2196-148-0x0000000000E10000-0x0000000000EA3000-memory.dmp

      Filesize

      588KB

    • memory/2196-147-0x0000000000860000-0x000000000088F000-memory.dmp

      Filesize

      188KB

    • memory/3168-143-0x0000000000000000-mapping.dmp