Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-10-2023 10:00

General

  • Target

    Yglwulsvxiiswr.exe

  • Size

    1.1MB

  • MD5

    7f11fbaa2959fa9da839e42e2e52619a

  • SHA1

    06b5a1c77c5965950b2b2cccfad6bad9b7579d53

  • SHA256

    ac00251b8ba5b7bd219bb23bb5134a11f1215d19aaa0915e5a00d7906906b19a

  • SHA512

    92f67ba06e05949870c7aa5f4144125a466d8ea604b116729133a18b287c3d44e584b0091543e04bc8f0fc399754f4a723d08522484390bf2a626cab275421b1

  • SSDEEP

    24576:1RxK0h0gJ+HYS9XsILx0P83H5M8OG31WYm3:1RN+Hm3

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

fadc

Decoy

protechdream.com

faireco.life

bakrinhome.com

bustygirl.xyz

kbif.info

ningo.bond

hollywoodcircleevents.site

eapv-uabjo.com

852bets.com

nooption.online

global-strategy.pro

cartaonline.online

sacredbones2023.com

barsandbands.fun

liftchairs-info-mx.today

delamar.one

shuntianyuan.net

americanworldsolutions.com

julitv.net

criativax.com

Signatures

  • Formbook

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

  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

  • Formbook payload 4 IoCs
  • ModiLoader Second Stage 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Modifies registry class 2 IoCs
  • Script User-Agent 2 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 56 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Modifies registry class
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of UnmapMainImage
    PID:3148
    • C:\Users\Admin\AppData\Local\Temp\Yglwulsvxiiswr.exe
      "C:\Users\Admin\AppData\Local\Temp\Yglwulsvxiiswr.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3296
      • C:\Windows\SysWOW64\colorcpl.exe
        C:\Windows\System32\colorcpl.exe
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:2164
    • C:\Windows\SysWOW64\cmstp.exe
      "C:\Windows\SysWOW64\cmstp.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      PID:2676
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Windows\SysWOW64\colorcpl.exe"
        3⤵
          PID:4388

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2164-7-0x0000000004F60000-0x0000000005F60000-memory.dmp

      Filesize

      16.0MB

    • memory/2164-12-0x00000000110F0000-0x0000000011104000-memory.dmp

      Filesize

      80KB

    • memory/2164-11-0x0000000004F60000-0x0000000005F60000-memory.dmp

      Filesize

      16.0MB

    • memory/2164-10-0x00000000111D0000-0x000000001151A000-memory.dmp

      Filesize

      3.3MB

    • memory/2676-18-0x00000000022F0000-0x000000000263A000-memory.dmp

      Filesize

      3.3MB

    • memory/2676-21-0x0000000002130000-0x00000000021C3000-memory.dmp

      Filesize

      588KB

    • memory/2676-19-0x0000000000190000-0x00000000001BF000-memory.dmp

      Filesize

      188KB

    • memory/2676-17-0x0000000000190000-0x00000000001BF000-memory.dmp

      Filesize

      188KB

    • memory/2676-14-0x0000000000D00000-0x0000000000D16000-memory.dmp

      Filesize

      88KB

    • memory/2676-16-0x0000000000D00000-0x0000000000D16000-memory.dmp

      Filesize

      88KB

    • memory/3148-13-0x0000000008B20000-0x0000000008C43000-memory.dmp

      Filesize

      1.1MB

    • memory/3148-22-0x0000000008D40000-0x0000000008EBD000-memory.dmp

      Filesize

      1.5MB

    • memory/3148-23-0x0000000008D40000-0x0000000008EBD000-memory.dmp

      Filesize

      1.5MB

    • memory/3148-25-0x0000000008D40000-0x0000000008EBD000-memory.dmp

      Filesize

      1.5MB

    • memory/3296-1-0x0000000002960000-0x0000000003960000-memory.dmp

      Filesize

      16.0MB

    • memory/3296-0-0x0000000000810000-0x0000000000811000-memory.dmp

      Filesize

      4KB

    • memory/3296-3-0x0000000000400000-0x000000000052E000-memory.dmp

      Filesize

      1.2MB

    • memory/3296-4-0x0000000000810000-0x0000000000811000-memory.dmp

      Filesize

      4KB