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Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22/12/2024, 06:36 UTC

General

  • Target

    0535aac19775700bc13586181c92a0f4ad31d4b9f2a8a9488e025a55aa09cf1e.exe

  • Size

    652KB

  • MD5

    661cdc0eabc36a6513bdcbfab2229d91

  • SHA1

    68dfc27daa2275ec7174fecd05a445f80edf033d

  • SHA256

    0535aac19775700bc13586181c92a0f4ad31d4b9f2a8a9488e025a55aa09cf1e

  • SHA512

    01e203bf11614e41eb97c7a6cd9ad2343f02b4178b2cd0df979b1731de334ec013007fcda3effd5aa205641a9b3f4cd5e3338d24aca4d1999d8935a4d3a2f942

  • SSDEEP

    12288:fGnjjX/mAWN1qJFTPUQIHu3kJF8jxYNZ8v9dNIE/Sc:faLa1qkJFf69LIX

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

hs3h

Decoy

slairt.com

teresasellsflorida.com

resouthcarolina.com

npccfbf.com

hutshed.com

westatesmarking.com

rustmonkeys.com

kagawa-rentacar.com

easyvoip-system.com

admorinsulation.com

ericaleighjensen.com

zhonghaojiaju.net

apple-iphone.xyz

b0t.info

torgetmc.xyz

lawrencemargarse.com

6123655.com

macdonalds-delivery.com

cvpfl.com

ayudaparaturent.com

Signatures

  • Formbook

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

  • Formbook family
  • Formbook payload 1 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0535aac19775700bc13586181c92a0f4ad31d4b9f2a8a9488e025a55aa09cf1e.exe
    "C:\Users\Admin\AppData\Local\Temp\0535aac19775700bc13586181c92a0f4ad31d4b9f2a8a9488e025a55aa09cf1e.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2700
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\edBmCdRmFidR" /XML "C:\Users\Admin\AppData\Local\Temp\tmp58CA.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2648
    • C:\Users\Admin\AppData\Local\Temp\0535aac19775700bc13586181c92a0f4ad31d4b9f2a8a9488e025a55aa09cf1e.exe
      "{path}"
      2⤵
        PID:2404
      • C:\Users\Admin\AppData\Local\Temp\0535aac19775700bc13586181c92a0f4ad31d4b9f2a8a9488e025a55aa09cf1e.exe
        "{path}"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1868
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1868 -s 36
          3⤵
          • Program crash
          PID:1384

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp58CA.tmp

      Filesize

      1KB

      MD5

      ff19114411bcd6f5cd59405a93bffe78

      SHA1

      d6c6eacada3a7d8c5d9aaaeeb9b33c58038e7c57

      SHA256

      106407a314804dccaa2a3a685e60b0ba4b4de73b1b27099fcc75cd14d298ad05

      SHA512

      c20c5344b4073c5c32eedecefa3ba2aaf4fe65292b10c47784414f94929a4be90df348a344d3a51ead469a86dd67cf308f3b009e1825c29a9ed25006f575b4b2

    • memory/1868-11-0x0000000000400000-0x000000000042F000-memory.dmp

      Filesize

      188KB

    • memory/1868-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/1868-16-0x0000000000400000-0x000000000042F000-memory.dmp

      Filesize

      188KB

    • memory/1868-13-0x0000000000400000-0x000000000042F000-memory.dmp

      Filesize

      188KB

    • memory/2700-3-0x00000000749C0000-0x00000000750AE000-memory.dmp

      Filesize

      6.9MB

    • memory/2700-6-0x0000000004E80000-0x0000000004F08000-memory.dmp

      Filesize

      544KB

    • memory/2700-7-0x0000000002090000-0x00000000020C4000-memory.dmp

      Filesize

      208KB

    • memory/2700-5-0x00000000749C0000-0x00000000750AE000-memory.dmp

      Filesize

      6.9MB

    • memory/2700-4-0x00000000749CE000-0x00000000749CF000-memory.dmp

      Filesize

      4KB

    • memory/2700-0-0x00000000749CE000-0x00000000749CF000-memory.dmp

      Filesize

      4KB

    • memory/2700-2-0x00000000005B0000-0x00000000005C4000-memory.dmp

      Filesize

      80KB

    • memory/2700-1-0x00000000001A0000-0x000000000024A000-memory.dmp

      Filesize

      680KB

    • memory/2700-17-0x00000000749C0000-0x00000000750AE000-memory.dmp

      Filesize

      6.9MB

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