Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0219942e06303bb…

MALICIOUS

PDF

44.4 KB Created: 2021-06-03 05:46:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 442aefe5ec9462559a0f676d473918b4 SHA-1: edb07c0d10eb52b45c9fda8a278a935b43a75e12 SHA-256: e0219942e06303bb837516683a21d9687b24d6687bc348ba6d728894d1cc113f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as "free generator" or "game hack" lures. The primary link directs to a site offering "free minecoins in Minecraft". While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or malware distribution attempt, likely initiated via spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/479516143/how-to-get-free-minecoins-in-minecraft-game-hack In PDF document text
    • http://digilib.uim.ac.id/repository/free-robux-website_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/easiest-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/how-to-use-tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/minecraft-maps-pe-free-download_GM479516143.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/pubg-uc-telegram_GM1330123889.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/how-to-get-free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/coin-master-free-spin-and-coin-link-2021-today_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-roblox-generator_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/60-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-roblox-generator-online_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/how-to-make-my-own-coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/coin-master-free-spin-link-list_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
stream_004_off0000524e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x524E 25520 bytes
SHA-256: 5319cc59961ac256ad642d6a6ae60dcbdb64701d85cc33fa4ab8a42589386cf8
font_01_sfnt_off00008c29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C29 17872 bytes
SHA-256: 81b1d154aec9bd98ecdb2ab8ecc7cbe93e1e8bf82edf60babb6ca5717914fb66

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