Malicious PDF — malware analysis report

Static analysis result for SHA-256 61d6f5542327d08f…

MALICIOUS

PDF

35.1 KB Created: 2021-06-29 20:14:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 8ca972dc01c932968f87951e8d50f29b SHA-1: 0aeb2dd0bf3f9ac2213b8fc1e3971a431eb5d446 SHA-256: 61d6f5542327d08f6d975daa5b2b009f20703b6dc6be700e2d4bb70b0de16059
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically targeting users with lures for game hacks and generators. The presence of a 'download button' heuristic further supports the social engineering aspect of this lure. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a phishing or scam attempt designed to lead users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.
  • 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/pagina-de-hack-de-roblox-game-hack In PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-35-2-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/how-to-get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/secret-cheats-for-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-spins-coin-master-without-survey_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/haktuts-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/hack-to-protect-village-on-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/pokemon-go-free-offers_GM1094591345.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/hack-coin-master-apk-31_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-pet-food-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-free-spins-and-chips_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/minecraft-free-download-mac-full-version-2021_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-reward-link-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-get-free-penguin-suit-in-roblox_GM431946152.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_off000032af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32AF 22204 bytes
SHA-256: 010731d081c168effaee5b4b102c8874d2707386ea91ea21bdc731375762ee87
font_01_sfnt_off000063eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63EB 19096 bytes
SHA-256: a0e9c13d58ebc8172f78ec02c2473e8774ca557ce6e8cb7713a83c28ca6fd7cb

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