Analysis

  • max time kernel
    169s
  • max time network
    175s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-11-2022 19:18

General

  • Target

    Purchase Order No. 4502717956.exe

  • Size

    636KB

  • MD5

    f0d59737a03d771cef9ac6fee3d09943

  • SHA1

    d517eab4a14ce87a8d0a551ca3d046145e739dd5

  • SHA256

    d1dd1f80a7b08c0b8ee7c3067df3d35dadc6af79b02761ccf70dfcaa53f76cd7

  • SHA512

    318b662f312298d5eb8dd6345ad6c96c58bb8fc818268091646d049414e7df96585eaccbd06220beb635725ca25c15f3b4ab7dae06a354054410cdbeb8beed53

  • SSDEEP

    12288:YTczpbKbfu90F4t72M6/nFo0B+aFo7keY528R+:YgFbKie2x4/kZ7kr

Malware Config

Extracted

Family

formbook

Campaign

snky

Decoy

AiMFvkl6+A4HEgZ99q5x4naN7lGmvJo=

tvj/KUTKeKgxszIemQ==

DTrTokBrjB5leF4=

tPeTOuIjJPtH

taxtMdIygEdpskxzOQ2ZjoAEeA==

CxLuaKAFRrJyuIqQUPbhZw==

Tn4fapT5kPmk1H0gpXQ=

h5p8hDqGSiRzdSbV

i3lg8tbRNRU6jC9pQSOxzHYZgpbnOKBx

EwbfBo6m+UXU2qaVUPbhZw==

WpeenFSMquJ3xXD1/b43

niV5qTFu3tfmcgrI

fqyyyElbdxWswJ7A

Lh7o92ZOr4ghbwvK

Y2RYMDue4x+KszIemQ==

lN3Y3z5AS85eah1MDvfFQQA=

uq+Oqh8MNRxHOOkqA9lqYEZZhJU=

FEtGDeGnnRoSQEM=

TkMlruotvsmtpFwg6shr03LjwMWGow==

7PGx8hNMep8EMj5Q39dsq16IbbaIrA==

Signatures

  • Formbook

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Suspicious use of SetThreadContext 4 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 46 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:3008
    • C:\Users\Admin\AppData\Local\Temp\Purchase Order No. 4502717956.exe
      "C:\Users\Admin\AppData\Local\Temp\Purchase Order No. 4502717956.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:4248
      • C:\Users\Admin\AppData\Local\Temp\Purchase Order No. 4502717956.exe
        "C:\Users\Admin\AppData\Local\Temp\Purchase Order No. 4502717956.exe"
        3⤵
        • Checks computer location settings
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:4180
    • C:\Windows\SysWOW64\help.exe
      "C:\Windows\SysWOW64\help.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1628
      • C:\Program Files\Mozilla Firefox\Firefox.exe
        "C:\Program Files\Mozilla Firefox\Firefox.exe"
        3⤵
          PID:1320

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1628-159-0x00000000004B0000-0x00000000004DD000-memory.dmp
      Filesize

      180KB

    • memory/1628-157-0x0000000000AC0000-0x0000000000B4F000-memory.dmp
      Filesize

      572KB

    • memory/1628-156-0x00000000004B0000-0x00000000004DD000-memory.dmp
      Filesize

      180KB

    • memory/1628-155-0x0000000000BA0000-0x0000000000BA7000-memory.dmp
      Filesize

      28KB

    • memory/1628-154-0x0000000000BB0000-0x0000000000EFA000-memory.dmp
      Filesize

      3.3MB

    • memory/1628-151-0x0000000000000000-mapping.dmp
    • memory/3008-146-0x0000000007B70000-0x0000000007CE6000-memory.dmp
      Filesize

      1.5MB

    • memory/3008-160-0x0000000007F40000-0x0000000008059000-memory.dmp
      Filesize

      1.1MB

    • memory/3008-158-0x0000000007F40000-0x0000000008059000-memory.dmp
      Filesize

      1.1MB

    • memory/3008-150-0x00000000083B0000-0x0000000008509000-memory.dmp
      Filesize

      1.3MB

    • memory/4180-144-0x0000000000422000-0x0000000000424000-memory.dmp
      Filesize

      8KB

    • memory/4180-153-0x0000000000401000-0x000000000042E000-memory.dmp
      Filesize

      180KB

    • memory/4180-137-0x0000000000000000-mapping.dmp
    • memory/4180-143-0x0000000001670000-0x00000000019BA000-memory.dmp
      Filesize

      3.3MB

    • memory/4180-148-0x0000000000422000-0x0000000000424000-memory.dmp
      Filesize

      8KB

    • memory/4180-149-0x0000000003460000-0x0000000003470000-memory.dmp
      Filesize

      64KB

    • memory/4180-142-0x0000000000401000-0x000000000042E000-memory.dmp
      Filesize

      180KB

    • memory/4180-141-0x0000000000400000-0x000000000042E000-memory.dmp
      Filesize

      184KB

    • memory/4180-152-0x0000000000400000-0x000000000042E000-memory.dmp
      Filesize

      184KB

    • memory/4180-145-0x0000000000DF0000-0x0000000000E00000-memory.dmp
      Filesize

      64KB

    • memory/4180-140-0x0000000000400000-0x000000000042E000-memory.dmp
      Filesize

      184KB

    • memory/4180-138-0x0000000000400000-0x000000000042E000-memory.dmp
      Filesize

      184KB

    • memory/4248-132-0x00000000009C0000-0x0000000000A66000-memory.dmp
      Filesize

      664KB

    • memory/4248-136-0x0000000009030000-0x00000000090CC000-memory.dmp
      Filesize

      624KB

    • memory/4248-135-0x0000000005370000-0x000000000537A000-memory.dmp
      Filesize

      40KB

    • memory/4248-134-0x00000000052B0000-0x0000000005342000-memory.dmp
      Filesize

      584KB

    • memory/4248-133-0x0000000005910000-0x0000000005EB4000-memory.dmp
      Filesize

      5.6MB