Malicious PDF — malware analysis report

Static analysis result for SHA-256 b29b24efc258fa9b…

MALICIOUS

PDF

33.0 KB Created: 2021-06-28 08:11:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: a2a3c9eef8d5dc153bb19e7e5666e8e3 SHA-1: 894d3c6955432b3d787ebd56de26a894e79f0602 SHA-256: b29b24efc258fa9bc08427b4c23d7d149fd363a96466c528f49b5048161265d0
220 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, including a known malicious redirector at http://netcdn.co/app/431946152/fly-hack-roblox-pastebin-game-hack. The document body and heuristics indicate a lure related to game hacks and generators, suggesting the primary goal is to drive traffic to these malicious sites. The presence of a visual download button further supports a malicious workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/fly-hack-roblox-pastebin-game-hack In PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-hack-apk-online_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-roblox-card-codes-december-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/get-coin-master-cards-free_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-games-for-free-no-sign-up_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-coin-master-androd-cheats-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-5x-coins-anime-cross-hack_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/how-to-hack-into-a-roblox-private-game_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/ho9w-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/simplysarc_GM479516143.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-robux-hack-download-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/how-to-use-hack-in-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-robux-clibait_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/is-there-an-actual-hack-that-work-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/www-roblox-com-cheat-in_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-skins-boy-free_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-hack-android-2021_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_off00002abd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ABD 22072 bytes
SHA-256: c5c717299a24c8f237a7a6291398aee5ea6a4c76172f3948a59b3448881ae401
font_01_sfnt_off00005b7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B7F 19376 bytes
SHA-256: 1423b8fc11bb28fd0e945fdeaa8c84217c340070d96519e07fc563bcad2af814

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