Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5fb625c63cffefa…

MALICIOUS

PDF

36.5 KB Created: 2021-07-02 07:23:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: b473ce7b29485ceba3bdf4859f4ae5d7 SHA-1: 5b1f267b7475d1529e008a540355054b259776b8 SHA-256: b5fb625c63cffefabe70ff70e8b32b615eb74de547a678fc356d6fed523e400d
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a document body that promotes free Robux and game hacks, indicating a lure for potentially unwanted software or scams. The heuristic 'PDF_SEO_LINK_FARM' suggests a large number of external links, likely for SEO manipulation or to distribute further malicious content. While no scripts were directly extracted, the presence of embedded URLs and the nature of the content strongly suggest a phishing or scamming attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/how-to-get-free-robux-by-joining-groups-game-hack PDF link annotation
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/coin-master-hack-download-android_GM406889139.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/free-roblox-generator-for-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/roblox-ben-10-universal-showdown-cheats_GM431946152.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-youthnow_GM406889139.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/free-attacks-on-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/roblox-free-vip-server-mad-city_GM431946152.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/free-dovlovot-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/roblox-cheat-buddy-aimbot-script_GM431946152.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-fast-on-computer-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/coin-master-link-daily-get-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/youtube-how-to-get-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/roblox-card-free-codes-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/hack-coin-master-net_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003644.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3644 22356 bytes
SHA-256: 76dd87417e77b60ff43f950ee62f8624370d87b152df18a4d734f99d289a824a
font_01_sfnt_off000067e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67E9 19628 bytes
SHA-256: d30e36bc4af071734cc72ec75024ec2e6c6b5ba1de2bdafdee2fd60b770ad1af

Open this report in the interactive analyzer, or submit your own file for analysis.