Analysis

  • max time kernel
    149s
  • max time network
    155s
  • 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, 15:45

General

  • Target

    tmp.exe

  • Size

    185KB

  • MD5

    e46b46bfc5aa1d925bb65320823fee8b

  • SHA1

    506e325008fe464a5b17971d13aad348cc1e0bf4

  • SHA256

    f5c4d1a411acaf23f8799d9e97d29010bdd0c38915aad1ed556cb26359994b4c

  • SHA512

    f536e8d89b8a404c3b602228900580b858d1918aef0d0ec8e93af287d40092a42de2fe5743721034512133ac9f0f79e7e74c1f16aaa81a23ccf898514823b1a0

  • SSDEEP

    3072:536wm/kM2mHsaCbi3zb0LF4B6aPa9+WBYJRK5K4Gkuj24kkUFZIP6Qkqgh9l:rmeLUzwLWYaPa9+WEKrvtHJjl

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 3 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 60 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 13 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Modifies registry class
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:2564
    • 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:5028
    • C:\Windows\SysWOW64\systray.exe
      "C:\Windows\SysWOW64\systray.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4316
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
        3⤵
          PID:336
    • C:\Windows\system32\rundll32.exe
      "C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
      1⤵
        PID:3484
      • C:\Windows\System32\svchost.exe
        C:\Windows\System32\svchost.exe -k UnistackSvcGroup
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4500

      Network

            MITRE ATT&CK Matrix

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • memory/2564-9-0x0000000008160000-0x0000000008227000-memory.dmp

              Filesize

              796KB

            • memory/2564-15-0x0000000003020000-0x00000000030C5000-memory.dmp

              Filesize

              660KB

            • memory/2564-13-0x0000000003020000-0x00000000030C5000-memory.dmp

              Filesize

              660KB

            • memory/2564-3-0x0000000008160000-0x0000000008227000-memory.dmp

              Filesize

              796KB

            • memory/2564-12-0x0000000003020000-0x00000000030C5000-memory.dmp

              Filesize

              660KB

            • memory/4316-11-0x0000000002770000-0x0000000002803000-memory.dmp

              Filesize

              588KB

            • memory/4316-4-0x00000000007E0000-0x00000000007E6000-memory.dmp

              Filesize

              24KB

            • memory/4316-7-0x0000000002930000-0x0000000002C7A000-memory.dmp

              Filesize

              3.3MB

            • memory/4316-8-0x0000000000A00000-0x0000000000A2F000-memory.dmp

              Filesize

              188KB

            • memory/4316-5-0x00000000007E0000-0x00000000007E6000-memory.dmp

              Filesize

              24KB

            • memory/4316-6-0x0000000000A00000-0x0000000000A2F000-memory.dmp

              Filesize

              188KB

            • memory/4500-43-0x000001A7B8E40000-0x000001A7B8E50000-memory.dmp

              Filesize

              64KB

            • memory/4500-27-0x000001A7B8D40000-0x000001A7B8D50000-memory.dmp

              Filesize

              64KB

            • memory/4500-59-0x000001A7C11B0000-0x000001A7C11B1000-memory.dmp

              Filesize

              4KB

            • memory/4500-61-0x000001A7C11E0000-0x000001A7C11E1000-memory.dmp

              Filesize

              4KB

            • memory/4500-62-0x000001A7C11E0000-0x000001A7C11E1000-memory.dmp

              Filesize

              4KB

            • memory/4500-63-0x000001A7C12F0000-0x000001A7C12F1000-memory.dmp

              Filesize

              4KB

            • memory/5028-2-0x0000000000AD0000-0x0000000000AE4000-memory.dmp

              Filesize

              80KB

            • memory/5028-1-0x0000000000AF0000-0x0000000000B1F000-memory.dmp

              Filesize

              188KB

            • memory/5028-0-0x0000000000F50000-0x000000000129A000-memory.dmp

              Filesize

              3.3MB