Analysis

  • max time kernel
    141s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/07/2023, 06:55

General

  • Target
    9494431449041366a97d15e2f88cc8aa.exe
  • Size 745KB
  • Sample230712-hpsn6sdc71
  • SHA256 4baa8f661ea6d1777e87005c1a5c2a73aae516037084f6318d3a13528f3a812a
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • formbook

Version
  • 4.1

Campaign
  • 4hc5

Decoy
  • amandaastburyillustration.com

  • 7141999.com

  • showshoe.info

  • sagemarlin.com

  • lithuaniandreamtime.com

  • therenixgroupllc.com

  • avalialooks.shop

  • vurporn.com

  • lemmy.systems

  • 2816goldfinch.com

  • pacersun.com

  • checktrace.com

  • loadtransfer.site

  • matsuri-jujutsukaisen.com

  • iontrapper.science

  • 5108010.com

  • beidixi.com

  • 21305599.com

  • peakvitality.fitness

  • osisfeelingfee.com

Signatures

  • Formbook

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

  • Formbook payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

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

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9494431449041366a97d15e2f88cc8aa.exe
    "C:\Users\Admin\AppData\Local\Temp\9494431449041366a97d15e2f88cc8aa.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3888
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\9494431449041366a97d15e2f88cc8aa.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2064
    • C:\Users\Admin\AppData\Local\Temp\9494431449041366a97d15e2f88cc8aa.exe
      "C:\Users\Admin\AppData\Local\Temp\9494431449041366a97d15e2f88cc8aa.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:3724

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        __PSScriptPolicyTest_bnrvokzw.53z.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bnrvokzw.53z.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        memory/2064-172-0x0000000006B80000-0x0000000006B9E000-memory.dmp

        memory/2064-162-0x0000000070930000-0x000000007097C000-memory.dmp

        memory/2064-180-0x0000000007C00000-0x0000000007C08000-memory.dmp

        memory/2064-179-0x0000000007C10000-0x0000000007C2A000-memory.dmp

        memory/2064-178-0x0000000007B10000-0x0000000007B1E000-memory.dmp

        memory/2064-177-0x0000000007B50000-0x0000000007BE6000-memory.dmp

        memory/2064-176-0x0000000007940000-0x000000000794A000-memory.dmp

        memory/2064-142-0x0000000002CD0000-0x0000000002D06000-memory.dmp

        memory/2064-143-0x00000000058F0000-0x0000000005F18000-memory.dmp

        memory/2064-144-0x0000000005700000-0x0000000005722000-memory.dmp

        memory/2064-145-0x0000000005820000-0x0000000005886000-memory.dmp

        memory/2064-175-0x000000007F360000-0x000000007F370000-memory.dmp

        memory/2064-151-0x0000000005F90000-0x0000000005FF6000-memory.dmp

        memory/2064-155-0x0000000002C30000-0x0000000002C40000-memory.dmp

        memory/2064-174-0x00000000078D0000-0x00000000078EA000-memory.dmp

        memory/2064-159-0x00000000065D0000-0x00000000065EE000-memory.dmp

        memory/2064-173-0x0000000007F10000-0x000000000858A000-memory.dmp

        memory/2064-160-0x0000000002C30000-0x0000000002C40000-memory.dmp

        memory/2064-161-0x0000000006BC0000-0x0000000006BF2000-memory.dmp

        memory/2064-152-0x0000000002C30000-0x0000000002C40000-memory.dmp

        memory/3724-154-0x00000000017E0000-0x0000000001B2A000-memory.dmp

        memory/3724-140-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/3888-133-0x0000000000AB0000-0x0000000000B70000-memory.dmp

        memory/3888-135-0x0000000005570000-0x0000000005602000-memory.dmp

        memory/3888-134-0x0000000005B20000-0x00000000060C4000-memory.dmp

        memory/3888-139-0x0000000005510000-0x0000000005520000-memory.dmp

        memory/3888-137-0x0000000005510000-0x0000000005520000-memory.dmp

        memory/3888-138-0x00000000057C0000-0x000000000585C000-memory.dmp

        memory/3888-136-0x0000000005530000-0x000000000553A000-memory.dmp