Analysis

  • max time kernel
    96s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/02/2025, 07:15

General

  • Target

    Quote-553780956787535101-UAE-24_pdf.exe

  • Size

    1.1MB

  • MD5

    d7dabe8c3cf0b14d0ee2f761b675f941

  • SHA1

    ecabf3a71f22c5b68a1d173f1725d1fb037af485

  • SHA256

    a2dde989ed71eee2f7038baa6a30cf86abe2d7e2c13985cf4274b6faf102284d

  • SHA512

    a80c1733df4e7ea34be16adcb90cd119b40879b7ef69b66a24c799dce6261b46221e71f243c2c8af6a02d6dea2aa71f2dec3e53029444bbbd0eecfde40a941d4

  • SSDEEP

    24576:3GEzjpoPngDYFsjq5c3SddFDykNTwdQG9ikr:Dz+PnG2l5kSdzDPwZiE

Malware Config

Signatures

  • Guloader family
  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Loads dropped DLL 1 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads user/profile data of web browsers 3 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 42 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Quote-553780956787535101-UAE-24_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Quote-553780956787535101-UAE-24_pdf.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:5064
    • C:\Users\Admin\AppData\Local\Temp\Quote-553780956787535101-UAE-24_pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Quote-553780956787535101-UAE-24_pdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2900

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsn806C.tmp\System.dll

    Filesize

    11KB

    MD5

    ee260c45e97b62a5e42f17460d406068

    SHA1

    df35f6300a03c4d3d3bd69752574426296b78695

    SHA256

    e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27

    SHA512

    a98f350d17c9057f33e5847462a87d59cbf2aaeda7f6299b0d49bb455e484ce4660c12d2eb8c4a0d21df523e729222bbd6c820bf25b081bc7478152515b414b3

  • memory/2900-31-0x00000000016E0000-0x0000000004ABF000-memory.dmp

    Filesize

    51.9MB

  • memory/2900-32-0x0000000077608000-0x0000000077609000-memory.dmp

    Filesize

    4KB

  • memory/2900-33-0x0000000077625000-0x0000000077626000-memory.dmp

    Filesize

    4KB

  • memory/2900-48-0x0000000000480000-0x00000000016D4000-memory.dmp

    Filesize

    18.3MB

  • memory/2900-49-0x0000000077581000-0x00000000776A1000-memory.dmp

    Filesize

    1.1MB

  • memory/2900-51-0x000000007247E000-0x000000007247F000-memory.dmp

    Filesize

    4KB

  • memory/2900-52-0x0000000000480000-0x00000000004E0000-memory.dmp

    Filesize

    384KB

  • memory/2900-54-0x0000000072470000-0x0000000072C20000-memory.dmp

    Filesize

    7.7MB

  • memory/2900-53-0x0000000035480000-0x0000000035516000-memory.dmp

    Filesize

    600KB

  • memory/2900-50-0x00000000016E0000-0x0000000004ABF000-memory.dmp

    Filesize

    51.9MB

  • memory/2900-99-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-104-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-115-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-113-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-111-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-109-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-107-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-105-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-101-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-97-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-93-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-91-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-89-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-87-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-85-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-83-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-81-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-79-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-75-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-73-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-71-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-69-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-67-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-65-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-63-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-61-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-59-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-95-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-77-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-57-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-56-0x0000000035480000-0x0000000035511000-memory.dmp

    Filesize

    580KB

  • memory/2900-2120-0x0000000035540000-0x000000003556C000-memory.dmp

    Filesize

    176KB

  • memory/2900-2121-0x0000000037850000-0x000000003789C000-memory.dmp

    Filesize

    304KB

  • memory/2900-2122-0x0000000037A80000-0x0000000037B60000-memory.dmp

    Filesize

    896KB

  • memory/2900-3533-0x000000007247E000-0x000000007247F000-memory.dmp

    Filesize

    4KB

  • memory/2900-4424-0x0000000072470000-0x0000000072C20000-memory.dmp

    Filesize

    7.7MB

  • memory/2900-5150-0x0000000037C40000-0x0000000037CA6000-memory.dmp

    Filesize

    408KB

  • memory/2900-5151-0x0000000037F90000-0x0000000038534000-memory.dmp

    Filesize

    5.6MB

  • memory/2900-5152-0x0000000037CF0000-0x0000000037D82000-memory.dmp

    Filesize

    584KB

  • memory/2900-5153-0x00000000388B0000-0x00000000388C2000-memory.dmp

    Filesize

    72KB

  • memory/2900-5154-0x0000000038940000-0x0000000038990000-memory.dmp

    Filesize

    320KB

  • memory/2900-5155-0x0000000072470000-0x0000000072C20000-memory.dmp

    Filesize

    7.7MB

  • memory/2900-5159-0x0000000072470000-0x0000000072C20000-memory.dmp

    Filesize

    7.7MB

  • memory/5064-28-0x0000000077581000-0x00000000776A1000-memory.dmp

    Filesize

    1.1MB

  • memory/5064-29-0x0000000077581000-0x00000000776A1000-memory.dmp

    Filesize

    1.1MB

  • memory/5064-30-0x0000000010004000-0x0000000010005000-memory.dmp

    Filesize

    4KB