Malicious PDF — malware analysis report

Static analysis result for SHA-256 078dc04e25205028…

MALICIOUS

PDF

34.9 KB Created: 2021-07-05 12:18:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 63804f015e6acd72c6677df4cf43f06c SHA-1: c9fcde06f499a8d2f7aaac3c38fb9e72ebe97ee7 SHA-256: 078dc04e252050285a3089d7b5763cde43b4d250b4982f149d0d202b518a8a47
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to known malicious infrastructure, specifically promoting 'game hacks' and free currency generators. The ML classifier also flagged this PDF as malicious. The embedded URLs and the heuristic firings strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites.

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.tw/app/406889139/coin-master-free-coins-link-march-2021-game-hack In PDF document text
    • http://digilib.stie-yppi.ac.id/repository/coinmaster-hack_GM406889139.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/roblox-robort-free-mega-vip_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/free-wing-roblox-2021_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/free-tiktok-coins_GM835599320.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/free-minecraft-website_GM479516143.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/roblox-font-free_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/roblox-free-models_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/create-free-account-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/roblox-digimon-aurity-hack-fast-fire_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/free-draw-2-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/pokemon-go-free-friend-codes_GM1094591345.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/how-to-hack-strucid-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/games-like-minecraft-but-free_GM479516143.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/coin-master-free-link_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_off00003235.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3235 22508 bytes
SHA-256: 73c1f5e732c98bdfe046bf18a29b520c336055af848031730f1b52c45f873ace
font_01_sfnt_off00006453.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6453 18736 bytes
SHA-256: 1810aa1194408988f889930d2b316369f9abc71c28062134bfa3042e826aa82e

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