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Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/12/2022, 08:39

General

  • Target

    Official Purchase Order 121322.exe

  • Size

    1019KB

  • MD5

    9e40b98924b94ea375faf0bccf2609ee

  • SHA1

    bbb2330799adfffd534505aac9ac112e16f7fc8e

  • SHA256

    4b4faaccc4842d408c3caad47e364f69dad51765ab242e4dc8c97de0cd190ddc

  • SHA512

    c2a3f6653962664b1d830edee1c84ac9a62e1d908b647c6f88f1b21837c3316177c445ea2af17c0326e79d9bf3b5d4b266fbbb3a87b2eb12ffa1cc972a23b9db

  • SSDEEP

    24576:wGTgVIYba1JXh+Q/Fkq1SW0vQ2lBS4G3r5/oOi3bJhxVsWy:wGT6Iz3RJtkqh0vQ2

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.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Suspicious use of SetThreadContext 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 46 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 7 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:704
    • C:\Users\Admin\AppData\Local\Temp\Official Purchase Order 121322.exe
      "C:\Users\Admin\AppData\Local\Temp\Official Purchase Order 121322.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:4928
      • C:\Users\Admin\AppData\Local\Temp\Official Purchase Order 121322.exe
        "C:\Users\Admin\AppData\Local\Temp\Official Purchase Order 121322.exe"
        3⤵
        • Checks computer location settings
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:4364
    • C:\Windows\SysWOW64\wscript.exe
      "C:\Windows\SysWOW64\wscript.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:1212
      • C:\Program Files\Mozilla Firefox\Firefox.exe
        "C:\Program Files\Mozilla Firefox\Firefox.exe"
        3⤵
          PID:2852

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/704-146-0x0000000008350000-0x00000000084C0000-memory.dmp

      Filesize

      1.4MB

    • memory/704-156-0x0000000007860000-0x0000000007990000-memory.dmp

      Filesize

      1.2MB

    • memory/704-154-0x0000000007860000-0x0000000007990000-memory.dmp

      Filesize

      1.2MB

    • memory/1212-155-0x0000000000770000-0x000000000079D000-memory.dmp

      Filesize

      180KB

    • memory/1212-153-0x00000000027A0000-0x000000000282F000-memory.dmp

      Filesize

      572KB

    • memory/1212-152-0x0000000002860000-0x0000000002BAA000-memory.dmp

      Filesize

      3.3MB

    • memory/1212-151-0x0000000000770000-0x000000000079D000-memory.dmp

      Filesize

      180KB

    • memory/1212-150-0x0000000000D00000-0x0000000000D27000-memory.dmp

      Filesize

      156KB

    • memory/4364-149-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/4364-145-0x0000000001660000-0x0000000001670000-memory.dmp

      Filesize

      64KB

    • memory/4364-143-0x0000000001AD0000-0x0000000001E1A000-memory.dmp

      Filesize

      3.3MB

    • memory/4364-141-0x0000000000401000-0x000000000042E000-memory.dmp

      Filesize

      180KB

    • memory/4364-148-0x0000000000401000-0x000000000042E000-memory.dmp

      Filesize

      180KB

    • memory/4364-140-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/4364-144-0x0000000000422000-0x0000000000424000-memory.dmp

      Filesize

      8KB

    • memory/4364-138-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/4928-132-0x0000000000650000-0x0000000000756000-memory.dmp

      Filesize

      1.0MB

    • memory/4928-136-0x0000000008EB0000-0x0000000008F4C000-memory.dmp

      Filesize

      624KB

    • memory/4928-135-0x00000000050F0000-0x00000000050FA000-memory.dmp

      Filesize

      40KB

    • memory/4928-134-0x0000000005100000-0x0000000005192000-memory.dmp

      Filesize

      584KB

    • memory/4928-133-0x0000000005780000-0x0000000005D24000-memory.dmp

      Filesize

      5.6MB