Analysis

  • max time kernel
    149s
  • max time network
    146s
  • 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 07:30

General

  • Target

    lSQSMS1aatHclJP.exe

  • Size

    734KB

  • MD5

    b5ecdb2b4c89d8b2111fef5112b3d59c

  • SHA1

    c7e446bbdd1a23d47e860f3bf029ab8fea3621af

  • SHA256

    033d52b01807172f9946d2c20c009df5c1a6a65ea153d75cc6e670d2151f79cc

  • SHA512

    0e102a230c2e3757e1e5f6e44af8bf14d6f866768d7054dd1f21793374ab6d8090d112558700fab87a31f5e2197fbb6cb215cad72b511a94526a1fcfe3015866

  • SSDEEP

    12288:8kMCVc1FDEC8oAc08NZ8OwESaDj3xvvn+EcVt8gnx2cHss/S+PHc42xtAq:pMGc1r8ooiYCj3xvv+9Yux2cHs6Sq84c

Malware Config

Extracted

Family

formbook

Campaign

fqwu

Decoy

N6XHavFRXQTRmNUkF9dn

EoaWTgFMmLFmUJ7CJNkTiGoj5A==

Dm+WNJDwSQa5cML3Q7EBiGoj5A==

nixR8ZCkOWjqrASBuic=

yvWQNApkdf4QYIih4+xUDY0=

RtmBQtDYDb50g8btXA==

8SU541y9Ec12NYK8PSOfA8OPpaphimY=

/yEvxvlAkquuY3W1QQ==

AlHZgYW4BiI9V+M=

YsHIUsAOO15j+9TnWA==

JJu1S7QIIMij0xUqlUtv

CmWBLrD98YnyUCCFvy0=

uPwhAVEvtu1rTuY=

PI6bR88GVGXmRlpxpKjtBpo=

GnL7qs9HVQAiF6ckF9dn

2zVeBFKZgO1rTuY=

2VI1VpOg7boCAFxvrWN3ys9rovE=

L1lO62zA2o1QEEZRQtgh7g==

brhF5dY1e3zmSyCFvy0=

U6m2TsEidTTdsA5kX8wh7g==

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 3 IoCs
  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 48 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:2640
    • C:\Users\Admin\AppData\Local\Temp\lSQSMS1aatHclJP.exe
      "C:\Users\Admin\AppData\Local\Temp\lSQSMS1aatHclJP.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1208
      • C:\Users\Admin\AppData\Local\Temp\lSQSMS1aatHclJP.exe
        "C:\Users\Admin\AppData\Local\Temp\lSQSMS1aatHclJP.exe"
        3⤵
        • Checks computer location settings
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:4544
    • C:\Windows\SysWOW64\ipconfig.exe
      "C:\Windows\SysWOW64\ipconfig.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Gathers network information
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3912
      • C:\Program Files\Mozilla Firefox\Firefox.exe
        "C:\Program Files\Mozilla Firefox\Firefox.exe"
        3⤵
          PID:740

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Command-Line Interface

    1
    T1059

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1208-132-0x00000000001E0000-0x000000000029E000-memory.dmp
      Filesize

      760KB

    • memory/1208-133-0x00000000051A0000-0x0000000005744000-memory.dmp
      Filesize

      5.6MB

    • memory/1208-134-0x0000000004C90000-0x0000000004D22000-memory.dmp
      Filesize

      584KB

    • memory/1208-135-0x0000000004C40000-0x0000000004C4A000-memory.dmp
      Filesize

      40KB

    • memory/1208-136-0x0000000008970000-0x0000000008A0C000-memory.dmp
      Filesize

      624KB

    • memory/2640-155-0x0000000007BF0000-0x0000000007D21000-memory.dmp
      Filesize

      1.2MB

    • memory/2640-153-0x0000000007BF0000-0x0000000007D21000-memory.dmp
      Filesize

      1.2MB

    • memory/2640-145-0x0000000002D70000-0x0000000002E28000-memory.dmp
      Filesize

      736KB

    • memory/3912-150-0x00000000003D0000-0x00000000003FD000-memory.dmp
      Filesize

      180KB

    • memory/3912-154-0x00000000003D0000-0x00000000003FD000-memory.dmp
      Filesize

      180KB

    • memory/3912-152-0x0000000000C60000-0x0000000000CEF000-memory.dmp
      Filesize

      572KB

    • memory/3912-151-0x0000000000D60000-0x00000000010AA000-memory.dmp
      Filesize

      3.3MB

    • memory/3912-146-0x0000000000000000-mapping.dmp
    • memory/3912-149-0x00000000002E0000-0x00000000002EB000-memory.dmp
      Filesize

      44KB

    • memory/4544-137-0x0000000000000000-mapping.dmp
    • memory/4544-148-0x0000000000401000-0x000000000042F000-memory.dmp
      Filesize

      184KB

    • memory/4544-147-0x0000000000400000-0x000000000042F000-memory.dmp
      Filesize

      188KB

    • memory/4544-144-0x0000000000EC0000-0x0000000000ED0000-memory.dmp
      Filesize

      64KB

    • memory/4544-142-0x00000000011C0000-0x000000000150A000-memory.dmp
      Filesize

      3.3MB

    • memory/4544-141-0x0000000000401000-0x000000000042F000-memory.dmp
      Filesize

      184KB

    • memory/4544-140-0x0000000000400000-0x000000000042F000-memory.dmp
      Filesize

      188KB

    • memory/4544-138-0x0000000000400000-0x000000000042F000-memory.dmp
      Filesize

      188KB