Analysis

  • max time kernel
    152s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-11-2022 09:51

General

  • Target

    img1100020222911pdf.exe

  • Size

    228KB

  • MD5

    d74737867056221a34fb0f606f46b695

  • SHA1

    26605c664c9b4b3bd1f007fa1068abb0bbfaf265

  • SHA256

    8dec08c523bc61d2d8da23da4d82ff33e89f69c7478578af3623f9411e1a38d0

  • SHA512

    5451a474a6cc55f220b43bfe0b65fe9ed2b7c66dfef0ab33b22e9b8fce26929235073ecd820681087100035b6091acf7106f927a98ca801696aa5e89c89901f4

  • SSDEEP

    6144:QBn1GdcqsCyQBYm/Zyo49qd/XvU1jO6IJO:gONsCyQBPsvmyjO6yO

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

mi08

Decoy

mytimebabes.com

ycpxb.com

abdkaplani.com

cloudingersoftech.com

fthfire.xyz

christyna.work

3d-add-on.com

knowyourtechdeals.com

kcl24.com

sepatubiker.com

sunnyboy.live

zrbsq.com

rinpari.com

lesac-berra.com

yes820.com

cnnorman.com

mystichousedv.com

sbobet888auto.com

gawiul.xyz

luispenas.com

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.

  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Suspicious behavior: EnumeratesProcesses 56 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:2576
    • C:\Users\Admin\AppData\Local\Temp\img1100020222911pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\img1100020222911pdf.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:808
      • C:\Users\Admin\AppData\Local\Temp\eshbtmyh.exe
        "C:\Users\Admin\AppData\Local\Temp\eshbtmyh.exe" C:\Users\Admin\AppData\Local\Temp\artrnvmjmeh.uz
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:5016
        • C:\Users\Admin\AppData\Local\Temp\eshbtmyh.exe
          "C:\Users\Admin\AppData\Local\Temp\eshbtmyh.exe" C:\Users\Admin\AppData\Local\Temp\artrnvmjmeh.uz
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:4952
    • C:\Windows\SysWOW64\NETSTAT.EXE
      "C:\Windows\SysWOW64\NETSTAT.EXE"
      2⤵
      • Suspicious use of SetThreadContext
      • Gathers network information
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4920
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\eshbtmyh.exe"
        3⤵
          PID:2732

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\artrnvmjmeh.uz

      Filesize

      5KB

      MD5

      bf08797130b2716c878ce43694b70a00

      SHA1

      47cb8c4548094999b211f9c33dd5228cb069189d

      SHA256

      bf771c640f25137bc6d7f6a4d5ec4efa9b6ee66e7c6515dfcbaa7a9fcb52aa38

      SHA512

      e07763b41c1570b7dbc9ddd6921cd02b0494b7e4bd67e751ec3de990f780ccad1aa15a4f61f3bd498ae0bf3a663a819b9e7fb6b6ce48de95912a4b5d8206a7ab

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

      Filesize

      59KB

      MD5

      c23565b815af9468d59e97b63aadce26

      SHA1

      51fe24f24c98738ce936d9f9a66d759297018729

      SHA256

      511646182f1e77634cb75442ff180bf9fd490addf15a7b943a20fce6a347c5d6

      SHA512

      9553be9b57add87a08b0cdc1f9290e30f7cc4d3d92e425da6b6c4ba80acad11bf8b2643a62c4d6d48de6dc97a3b15c007021045bcc9d15a86d13ad074e9694c6

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

      Filesize

      59KB

      MD5

      c23565b815af9468d59e97b63aadce26

      SHA1

      51fe24f24c98738ce936d9f9a66d759297018729

      SHA256

      511646182f1e77634cb75442ff180bf9fd490addf15a7b943a20fce6a347c5d6

      SHA512

      9553be9b57add87a08b0cdc1f9290e30f7cc4d3d92e425da6b6c4ba80acad11bf8b2643a62c4d6d48de6dc97a3b15c007021045bcc9d15a86d13ad074e9694c6

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

      Filesize

      59KB

      MD5

      c23565b815af9468d59e97b63aadce26

      SHA1

      51fe24f24c98738ce936d9f9a66d759297018729

      SHA256

      511646182f1e77634cb75442ff180bf9fd490addf15a7b943a20fce6a347c5d6

      SHA512

      9553be9b57add87a08b0cdc1f9290e30f7cc4d3d92e425da6b6c4ba80acad11bf8b2643a62c4d6d48de6dc97a3b15c007021045bcc9d15a86d13ad074e9694c6

    • C:\Users\Admin\AppData\Local\Temp\mulqlcwybp.emj

      Filesize

      185KB

      MD5

      732eb533f6228a0f63b83dc52a820b45

      SHA1

      7994ca7bc8f02de4793a4de85c20dc55e18b2018

      SHA256

      4635d82c00779c583704bb744fe7d8d242d1d3e3aaf26bd0ed452885e4de7af0

      SHA512

      1b583f852f992e6656ad578749ed9d9e54bd9b262d98860afbd03332a3cd5cf11d9d566a23462283ac9c03e89f0473f0f9812e01c37cf62a3444fd970c7fdd61

    • memory/2576-142-0x00000000077D0000-0x00000000078D3000-memory.dmp

      Filesize

      1.0MB

    • memory/2576-152-0x00000000087E0000-0x000000000894C000-memory.dmp

      Filesize

      1.4MB

    • memory/2576-151-0x00000000087E0000-0x000000000894C000-memory.dmp

      Filesize

      1.4MB

    • memory/2576-148-0x00000000077D0000-0x00000000078D3000-memory.dmp

      Filesize

      1.0MB

    • memory/2732-144-0x0000000000000000-mapping.dmp

    • memory/4920-146-0x0000000000D20000-0x0000000000D4F000-memory.dmp

      Filesize

      188KB

    • memory/4920-143-0x0000000000000000-mapping.dmp

    • memory/4920-145-0x00000000003E0000-0x00000000003EB000-memory.dmp

      Filesize

      44KB

    • memory/4920-147-0x0000000001710000-0x0000000001A5A000-memory.dmp

      Filesize

      3.3MB

    • memory/4920-149-0x0000000000D20000-0x0000000000D4F000-memory.dmp

      Filesize

      188KB

    • memory/4920-150-0x00000000014B0000-0x0000000001544000-memory.dmp

      Filesize

      592KB

    • memory/4952-141-0x00000000009E0000-0x00000000009F5000-memory.dmp

      Filesize

      84KB

    • memory/4952-140-0x0000000000A40000-0x0000000000D8A000-memory.dmp

      Filesize

      3.3MB

    • memory/4952-139-0x0000000000400000-0x000000000042F000-memory.dmp

      Filesize

      188KB

    • memory/4952-137-0x0000000000000000-mapping.dmp

    • memory/5016-132-0x0000000000000000-mapping.dmp