Analysis

  • max time kernel
    147s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    24-05-2024 10:26

General

  • Target

    acb58cf1f819372ca5f461636f47ef790ec5d2748a5eaa3676104e46cdca1b19.msi

  • Size

    480KB

  • MD5

    6d7ada8915023eb188f47444a77d169d

  • SHA1

    f87023a7c0de6b0ff4b0b2b799e58f41b938c332

  • SHA256

    acb58cf1f819372ca5f461636f47ef790ec5d2748a5eaa3676104e46cdca1b19

  • SHA512

    d37cf81df8f8dc64c5d5f0d68a2ad428b7d7d31658dd6980bc27db0d3dbc3ef44776012ea72feafc1c3348b0c9cd3599ce89168aa7edd992769dca26a98cc084

  • SSDEEP

    12288:TEqy7sSW7kNUhBiTL1wuG2YVkp455oaomdIbTbq:TE5wzAQUTO/2SkpWon

Malware Config

Extracted

Family

formbook

Version

3.9

Campaign

ai

Decoy

theapschool.com

riseupfloridakeys.com

xn--mgbb2awa9dm20i.com

apnee-coach.com

christianmarketinggifts.com

eurothereum.biz

solutionfull.com

equifaxqsecurity2017.com

roboeye-tech.com

living-isar.immo

cable-online-zone.sale

parfumirza.com

civilizationsprice.com

zealasia.com

billet-bateau-tanger.com

andrewkurtsummers.net

darylandkaitlyn.com

ddaak.com

seattlepetadventures.com

iopuern.online

Signatures

  • Formbook

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

  • Formbook payload 1 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Windows directory 10 IoCs
  • Executes dropped EXE 2 IoCs
  • Modifies data under HKEY_USERS 43 IoCs
  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1372
    • C:\Windows\system32\msiexec.exe
      msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\acb58cf1f819372ca5f461636f47ef790ec5d2748a5eaa3676104e46cdca1b19.msi
      2⤵
      • Enumerates connected drives
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:2364
    • C:\Windows\SysWOW64\cmstp.exe
      "C:\Windows\SysWOW64\cmstp.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1104
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Windows\Installer\MSI2F5C.tmp"
        3⤵
          PID:784
    • C:\Windows\system32\msiexec.exe
      C:\Windows\system32\msiexec.exe /V
      1⤵
      • Enumerates connected drives
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1964
      • C:\Windows\Installer\MSI2F5C.tmp
        "C:\Windows\Installer\MSI2F5C.tmp"
        2⤵
        • Suspicious use of SetThreadContext
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1608
        • C:\Windows\Installer\MSI2F5C.tmp
          "C:\Windows\Installer\MSI2F5C.tmp"
          3⤵
          • Suspicious use of SetThreadContext
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:1556
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2536
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 2536 -s 548
        2⤵
          PID:2608
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2484
      • C:\Windows\system32\DrvInst.exe
        DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000005B8" "00000000000005A0"
        1⤵
        • Drops file in Windows directory
        • Modifies data under HKEY_USERS
        • Suspicious use of AdjustPrivilegeToken
        PID:2572

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Config.Msi\f76174c.rbs

        Filesize

        681B

        MD5

        db0dc89584d4f57c8fc3e5834ba421fc

        SHA1

        f16489a26fcecf4c9afcb4e8878e2916415529b9

        SHA256

        6677a6c3855a2e3fb351547d57dd9d9c561c189827c2ad2addbad93a5c2de30d

        SHA512

        d0da17f50cad5b49f27dfd251982e7ef7c814cd35f16b81124fefc652d6408932eec6d54c5b9aaec1865ba1cf67c3eb9082a1d1e4a6451c089739662fb9d198c

      • C:\Windows\Installer\MSI2F5C.tmp

        Filesize

        453KB

        MD5

        fb6874156f7530ccaac5c0c8b4ab22ba

        SHA1

        8e70fa2fb16735594c961db602ccd965f7634122

        SHA256

        6e7119cc172059cedc3933aa66cfbe816196859a1bb87604ac8253ddebf85f8b

        SHA512

        56f131092278769526e5d8b784be32781d7c36cbdf14e535919ab654b5a5c9ae7d7734c6549e92bad18b3b5289f9b86a820daed2bdc18fc78392455dfefa1f90

      • \??\PIPE\samr

        MD5

        d41d8cd98f00b204e9800998ecf8427e

        SHA1

        da39a3ee5e6b4b0d3255bfef95601890afd80709

        SHA256

        e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

        SHA512

        cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

      • memory/1104-30-0x00000000004B0000-0x00000000004C8000-memory.dmp

        Filesize

        96KB

      • memory/1372-42-0x0000000007030000-0x00000000071B5000-memory.dmp

        Filesize

        1.5MB

      • memory/1556-17-0x0000000000400000-0x000000000042A000-memory.dmp

        Filesize

        168KB

      • memory/1608-13-0x00000000009A0000-0x0000000000A1A000-memory.dmp

        Filesize

        488KB

      • memory/1608-14-0x00000000004C0000-0x00000000004F0000-memory.dmp

        Filesize

        192KB

      • memory/1608-15-0x0000000000460000-0x000000000047E000-memory.dmp

        Filesize

        120KB