Malicious PDF — malware analysis report

Static analysis result for SHA-256 a207046e3e1a297f…

MALICIOUS

PDF

47.5 KB Created: 2021-06-04 04:27:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: bfc2cf16b84d896963aee0fa194ea5c3 SHA-1: 937b301d2b6992228f3a6c0f606ee9960353fb8f SHA-256: a207046e3e1a297fb31a602f1bd322d907bff9685fabf360ac844491f3212a1a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free generators'. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or redirection attempt to a malicious site, likely to deliver a secondary payload or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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/minecraft-complete-handbook-game-hack In PDF document text
    • http://library.umuslim.ac.id/repository/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/roblox-a_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-daily-free-spins-today_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/minecraft-free-play-now_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-free-spins-link-download-free_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-get-free-faces-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/roblox-robux-generator_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/tiktok-free-view-quest_GM835599320.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/what-tiktok-free-will_GM835599320.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/all-free-items-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/roblox-girl_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005302.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5302 25392 bytes
SHA-256: fde9a658aaef558e6c69a19361e906b2a725a57ea5fd1ea4c0ebf5cb4bbdf7e1
font_01_sfnt_off00008c10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C10 2840 bytes
SHA-256: 30dce2b9c1950da345d7fed8f00c38887adfa2f2ddecc31775af2315e819ac37
font_02_sfnt_off000095c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95C3 18724 bytes
SHA-256: 92d200d6f1a6fdb520fe7b7a4fe4beb50248f688d0ff503977d63a4c72546565

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