Analysis

  • max time kernel
    148s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-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
  • Suspicious use of SetThreadContext 3 IoCs
  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Suspicious behavior: EnumeratesProcesses 44 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1972
    • 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 behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      PID:4384
  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3184
    • C:\Windows\SysWOW64\ipconfig.exe
      "C:\Windows\SysWOW64\ipconfig.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Gathers network information
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3360
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
        3⤵
          PID:4316

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/1972-8-0x0000000074430000-0x0000000074BE0000-memory.dmp

            Filesize

            7.7MB

          • memory/1972-10-0x0000000005F90000-0x0000000005F9C000-memory.dmp

            Filesize

            48KB

          • memory/1972-2-0x0000000005FB0000-0x0000000006554000-memory.dmp

            Filesize

            5.6MB

          • memory/1972-3-0x0000000005940000-0x00000000059D2000-memory.dmp

            Filesize

            584KB

          • memory/1972-4-0x0000000005910000-0x0000000005920000-memory.dmp

            Filesize

            64KB

          • memory/1972-5-0x0000000005B10000-0x0000000005B1A000-memory.dmp

            Filesize

            40KB

          • memory/1972-6-0x0000000005BF0000-0x0000000005C8C000-memory.dmp

            Filesize

            624KB

          • memory/1972-7-0x0000000005F80000-0x0000000005F90000-memory.dmp

            Filesize

            64KB

          • memory/1972-0-0x0000000074430000-0x0000000074BE0000-memory.dmp

            Filesize

            7.7MB

          • memory/1972-1-0x0000000000EC0000-0x0000000000F62000-memory.dmp

            Filesize

            648KB

          • memory/1972-9-0x0000000005910000-0x0000000005920000-memory.dmp

            Filesize

            64KB

          • memory/1972-11-0x0000000007D40000-0x0000000007DAE000-memory.dmp

            Filesize

            440KB

          • memory/1972-14-0x0000000074430000-0x0000000074BE0000-memory.dmp

            Filesize

            7.7MB

          • memory/3184-31-0x0000000002F70000-0x0000000003051000-memory.dmp

            Filesize

            900KB

          • memory/3184-29-0x0000000002F70000-0x0000000003051000-memory.dmp

            Filesize

            900KB

          • memory/3184-28-0x0000000002F70000-0x0000000003051000-memory.dmp

            Filesize

            900KB

          • memory/3184-24-0x0000000008E10000-0x0000000008FA5000-memory.dmp

            Filesize

            1.6MB

          • memory/3184-19-0x0000000008E10000-0x0000000008FA5000-memory.dmp

            Filesize

            1.6MB

          • memory/3360-23-0x0000000001980000-0x0000000001CCA000-memory.dmp

            Filesize

            3.3MB

          • memory/3360-21-0x0000000000240000-0x000000000024B000-memory.dmp

            Filesize

            44KB

          • memory/3360-22-0x00000000010D0000-0x00000000010FF000-memory.dmp

            Filesize

            188KB

          • memory/3360-20-0x0000000000240000-0x000000000024B000-memory.dmp

            Filesize

            44KB

          • memory/3360-25-0x00000000010D0000-0x00000000010FF000-memory.dmp

            Filesize

            188KB

          • memory/3360-27-0x0000000001770000-0x0000000001803000-memory.dmp

            Filesize

            588KB

          • memory/4384-17-0x0000000000400000-0x000000000042F000-memory.dmp

            Filesize

            188KB

          • memory/4384-18-0x00000000019D0000-0x00000000019E4000-memory.dmp

            Filesize

            80KB

          • memory/4384-15-0x00000000014E0000-0x000000000182A000-memory.dmp

            Filesize

            3.3MB

          • memory/4384-12-0x0000000000400000-0x000000000042F000-memory.dmp

            Filesize

            188KB