Analysis

  • max time kernel
    148s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/07/2024, 08:48

General

  • Target
    Payment Slip.pdf.exe
  • Size 286KB
  • Sample240729-kqmwesvbpg
  • SHA256 985fb6bd28653c5012113b096e61bebb49fe5aeeb53c7a128d323803637cf6cd
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • formbook

Version
  • 4.1

Campaign
  • tnk

Decoy
  • lafioletto.com

  • mgiuj.com

  • wolllafvixzies.win

  • wwwsbvip123.com

  • nadyaasnae.com

  • noticesinvoice2017.com

  • intercapati.com

  • tg8895.com

  • 9245654874.com

  • lytsxc.info

  • rffuf3-liquidwebsites.com

  • verguet.com

  • peinturefleursetfemmes.com

  • xttmrama.com

  • cryptoinvestmentideas.com

  • kikumasacarparts.win

  • freeapk1.com

  • tasteofimagination.com

  • gxzyoa.com

  • cq-mingwei.com

Signatures

  • Formbook

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

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Formbook payload 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Program Files directory 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 46 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3580
    • C:\Users\Admin\AppData\Local\Temp\Payment Slip.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Payment Slip.pdf.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1404
      • C:\Users\Admin\AppData\Local\Temp\Payment Slip.pdf.exe
        "{path}"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:2268
    • C:\Windows\SysWOW64\cmstp.exe
      "C:\Windows\SysWOW64\cmstp.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4924
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\Payment Slip.pdf.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3844
      • C:\Windows\SysWOW64\cmd.exe
        /c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3980
      • C:\Program Files\Mozilla Firefox\Firefox.exe
        "C:\Program Files\Mozilla Firefox\Firefox.exe"
        3⤵
          PID:5076

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          DB1

          • Path C:\Users\Admin\AppData\Local\Temp\DB1
          • Size 40KB
          • SHA256 42aad7886965428a941508b776a666a4450eb658cb90e80fae1e7457fc71f914
          • MD5 SHA1 SHA512 SSDEEP

          -1Llogim.jpeg

          • Path C:\Users\Admin\AppData\Roaming\-1L2OPP-\-1Llogim.jpeg
          • Size 80KB
          • SHA256 eac7a106569b4c255f20e4ab45e76260632709ae005f20dc1d95fb18960deccc
          • MD5 SHA1 SHA512 SSDEEP

          -1Llogrf.ini

          • Path C:\Users\Admin\AppData\Roaming\-1L2OPP-\-1Llogrf.ini
          • Size 40B
          • SHA256 1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361
          • MD5 SHA1 SHA512

          -1Llogrg.ini

          • Path C:\Users\Admin\AppData\Roaming\-1L2OPP-\-1Llogrg.ini
          • Size 38B
          • SHA256 75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56
          • MD5 SHA1 SHA512

          -1Llogri.ini

          • Path C:\Users\Admin\AppData\Roaming\-1L2OPP-\-1Llogri.ini
          • Size 40B
          • SHA256 eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae
          • MD5 SHA1 SHA512

          -1Llogrv.ini

          • Path C:\Users\Admin\AppData\Roaming\-1L2OPP-\-1Llogrv.ini
          • Size 872B
          • SHA256 ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb
          • MD5 SHA1 SHA512

          memory/1404-1-0x0000000075320000-0x00000000758D1000-memory.dmp

          memory/1404-2-0x0000000075320000-0x00000000758D1000-memory.dmp

          memory/1404-3-0x0000000075322000-0x0000000075323000-memory.dmp

          memory/1404-4-0x0000000075320000-0x00000000758D1000-memory.dmp

          memory/1404-7-0x0000000075320000-0x00000000758D1000-memory.dmp

          memory/1404-0-0x0000000075322000-0x0000000075323000-memory.dmp

          memory/2268-10-0x0000000000400000-0x000000000042D000-memory.dmp

          memory/2268-11-0x0000000001550000-0x0000000001564000-memory.dmp

          memory/2268-8-0x0000000001600000-0x000000000194A000-memory.dmp

          memory/2268-5-0x0000000000400000-0x000000000042D000-memory.dmp

          memory/3580-16-0x0000000008240000-0x000000000832C000-memory.dmp

          memory/3580-19-0x0000000008330000-0x00000000083F2000-memory.dmp

          memory/3580-20-0x0000000008330000-0x00000000083F2000-memory.dmp

          memory/3580-23-0x0000000008330000-0x00000000083F2000-memory.dmp

          memory/3580-12-0x0000000008240000-0x000000000832C000-memory.dmp

          memory/4924-13-0x00000000004E0000-0x00000000004F6000-memory.dmp

          memory/4924-14-0x00000000004E0000-0x00000000004F6000-memory.dmp