Analysis

  • max time kernel
    151s
  • max time network
    139s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    24-08-2021 08:55

General

  • Target

    966839ee96aef44275cf750220e9f3abbbbbcda2ddb12b98754da0a95e952520.exe

  • Size

    829KB

  • MD5

    8451c2a517986544d0ccdc58c5118a6f

  • SHA1

    821c08b1e2d3a450588ffb734c27e67ceab1f03c

  • SHA256

    966839ee96aef44275cf750220e9f3abbbbbcda2ddb12b98754da0a95e952520

  • SHA512

    ce82fd6e40834e84e149e43e3423eb2b38fbc3472b23a816fa844ece90bf41e8b1ee41fa464f99943f7ccfe9e5d43a03bae5c45c87c5b3a670958a8a6c65fd04

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

n7ak

C2

http://www.kmresults.com/n7ak/

Decoy

modischoolcbse.com

theneverwinter.com

rszkjx-vps-hosting.website

fnihil.com

1pbet.com

nnowzscorrez.com

uaotgvjl.icu

starmapsqatar.com

ekisilani.com

extradeepsheets.com

jam-nins.com

buranly.com

orixentertainment.com

rawtech.energy

myol.guru

utex.club

jiapie.com

wowig.store

wweidlyyl.com

systaskautomation.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
  • Suspicious behavior: EnumeratesProcesses 56 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of UnmapMainImage
    PID:2116
    • C:\Users\Admin\AppData\Local\Temp\966839ee96aef44275cf750220e9f3abbbbbcda2ddb12b98754da0a95e952520.exe
      "C:\Users\Admin\AppData\Local\Temp\966839ee96aef44275cf750220e9f3abbbbbcda2ddb12b98754da0a95e952520.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3200
      • C:\Users\Admin\AppData\Local\Temp\966839ee96aef44275cf750220e9f3abbbbbcda2ddb12b98754da0a95e952520.exe
        C:\Users\Admin\AppData\Local\Temp\966839ee96aef44275cf750220e9f3abbbbbcda2ddb12b98754da0a95e952520.exe
        3⤵
          PID:2636
          • C:\Windows\SysWOW64\dialer.exe
            C:\Windows\System32\dialer.exe
            4⤵
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of AdjustPrivilegeToken
            PID:4316
      • C:\Windows\SysWOW64\wscript.exe
        "C:\Windows\SysWOW64\wscript.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:4348
        • C:\Windows\SysWOW64\cmd.exe
          /c del "C:\Windows\SysWOW64\dialer.exe"
          3⤵
            PID:4380

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2116-136-0x0000000003010000-0x00000000030E2000-memory.dmp
        Filesize

        840KB

      • memory/2116-129-0x00000000057A0000-0x0000000005925000-memory.dmp
        Filesize

        1.5MB

      • memory/2636-116-0x0000000000000000-mapping.dmp
      • memory/2636-121-0x0000000000020000-0x0000000000021000-memory.dmp
        Filesize

        4KB

      • memory/2636-120-0x00000000001C0000-0x00000000001C1000-memory.dmp
        Filesize

        4KB

      • memory/2636-122-0x0000000000620000-0x00000000006CE000-memory.dmp
        Filesize

        696KB

      • memory/2636-123-0x0000000000620000-0x00000000006CE000-memory.dmp
        Filesize

        696KB

      • memory/3200-114-0x0000000000550000-0x0000000000551000-memory.dmp
        Filesize

        4KB

      • memory/3200-117-0x0000000010410000-0x000000001042B000-memory.dmp
        Filesize

        108KB

      • memory/4316-128-0x00000000046E0000-0x00000000046F4000-memory.dmp
        Filesize

        80KB

      • memory/4316-125-0x0000000002870000-0x0000000002871000-memory.dmp
        Filesize

        4KB

      • memory/4316-127-0x0000000004850000-0x0000000004B70000-memory.dmp
        Filesize

        3.1MB

      • memory/4316-126-0x0000000010430000-0x000000001045E000-memory.dmp
        Filesize

        184KB

      • memory/4316-124-0x0000000000000000-mapping.dmp
      • memory/4348-130-0x0000000000000000-mapping.dmp
      • memory/4348-132-0x0000000000A30000-0x0000000000A57000-memory.dmp
        Filesize

        156KB

      • memory/4348-133-0x0000000002D40000-0x0000000002D6E000-memory.dmp
        Filesize

        184KB

      • memory/4348-134-0x0000000004F30000-0x0000000005250000-memory.dmp
        Filesize

        3.1MB

      • memory/4348-135-0x0000000004D90000-0x0000000004E23000-memory.dmp
        Filesize

        588KB

      • memory/4380-131-0x0000000000000000-mapping.dmp