Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    11/10/2023, 14:55

General

  • Target

    tmp.exe

  • Size

    626KB

  • MD5

    b1635f0a98ef8519984bb3f9ef1979f8

  • SHA1

    ef247f07d841bc68214c37597cc4557ce8b09ca2

  • SHA256

    be8032937b016362c56bd7da1fce8a127af3f1a13839b11a96480a53f0d548f6

  • SHA512

    e8127ee5acd14d85048ffadd764e81b3761db25f77778e2013bce358f499d896770fc82b37f8e3d280018c91c06cd3300c35fbd473ff3c7d1c8c9b746fb24e92

  • SSDEEP

    12288:JVj3hLQvfdxOo7gpXtrrF725O3CyIKvykzST2YXMq2bI3cjhyZSbR565SRE5uPPC:ZMCjIKzzwXzTayMbq5X5APE1

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ro12

Decoy

start399.com

decyfincoin.com

binguozhijiaok.com

one45.vip

55dy5s.top

regmt.pro

2ahxgaafifl.com

xn--6rtp2flvfc2h.com

justinmburns.com

los3.online

fleshaaikensdivinegiven7llc.com

servicedelv.services

apexcaryhomesforsale.com

shuraop.xyz

sagetotal.com

gratitude-et-compagnie.com

riderarea.com

digitalserviceact.online

contentbyc.com

agenda-digital-planner.com

Signatures

  • Formbook

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

  • Formbook payload 4 IoCs
  • Deletes itself 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 28 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:1268
    • C:\Users\Admin\AppData\Local\Temp\tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2808
      • C:\Users\Admin\AppData\Local\Temp\tmp.exe
        "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:2564
    • C:\Windows\SysWOW64\chkdsk.exe
      "C:\Windows\SysWOW64\chkdsk.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2516
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
        3⤵
        • Deletes itself
        PID:2476

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1268-21-0x0000000006A50000-0x0000000006B9F000-memory.dmp

          Filesize

          1.3MB

        • memory/1268-34-0x0000000006FB0000-0x00000000070D8000-memory.dmp

          Filesize

          1.2MB

        • memory/1268-32-0x0000000006FB0000-0x00000000070D8000-memory.dmp

          Filesize

          1.2MB

        • memory/1268-31-0x0000000006FB0000-0x00000000070D8000-memory.dmp

          Filesize

          1.2MB

        • memory/1268-30-0x0000000002D10000-0x0000000002E10000-memory.dmp

          Filesize

          1024KB

        • memory/1268-27-0x0000000006A50000-0x0000000006B9F000-memory.dmp

          Filesize

          1.3MB

        • memory/2516-29-0x00000000022E0000-0x0000000002373000-memory.dmp

          Filesize

          588KB

        • memory/2516-26-0x0000000000080000-0x00000000000AF000-memory.dmp

          Filesize

          188KB

        • memory/2516-25-0x0000000001FD0000-0x00000000022D3000-memory.dmp

          Filesize

          3.0MB

        • memory/2516-24-0x0000000000080000-0x00000000000AF000-memory.dmp

          Filesize

          188KB

        • memory/2516-23-0x00000000003F0000-0x00000000003F7000-memory.dmp

          Filesize

          28KB

        • memory/2516-22-0x00000000003F0000-0x00000000003F7000-memory.dmp

          Filesize

          28KB

        • memory/2564-18-0x0000000000400000-0x000000000042F000-memory.dmp

          Filesize

          188KB

        • memory/2564-10-0x0000000000400000-0x000000000042F000-memory.dmp

          Filesize

          188KB

        • memory/2564-8-0x0000000000400000-0x000000000042F000-memory.dmp

          Filesize

          188KB

        • memory/2564-16-0x0000000000A00000-0x0000000000D03000-memory.dmp

          Filesize

          3.0MB

        • memory/2564-20-0x0000000000180000-0x0000000000194000-memory.dmp

          Filesize

          80KB

        • memory/2564-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2564-14-0x0000000000400000-0x000000000042F000-memory.dmp

          Filesize

          188KB

        • memory/2808-15-0x0000000074760000-0x0000000074E4E000-memory.dmp

          Filesize

          6.9MB

        • memory/2808-0-0x00000000011A0000-0x0000000001242000-memory.dmp

          Filesize

          648KB

        • memory/2808-7-0x0000000005080000-0x00000000050EE000-memory.dmp

          Filesize

          440KB

        • memory/2808-6-0x0000000000540000-0x000000000054C000-memory.dmp

          Filesize

          48KB

        • memory/2808-5-0x0000000004950000-0x0000000004990000-memory.dmp

          Filesize

          256KB

        • memory/2808-4-0x0000000074760000-0x0000000074E4E000-memory.dmp

          Filesize

          6.9MB

        • memory/2808-3-0x0000000000510000-0x0000000000520000-memory.dmp

          Filesize

          64KB

        • memory/2808-2-0x0000000004950000-0x0000000004990000-memory.dmp

          Filesize

          256KB

        • memory/2808-1-0x0000000074760000-0x0000000074E4E000-memory.dmp

          Filesize

          6.9MB