Malicious PDF — malware analysis report

Static analysis result for SHA-256 386473461528f4f2…

MALICIOUS

PDF

44.7 KB Created: 2021-06-03 12:19:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 0a2807eb34b3d1498fa10ce83e82f253 SHA-1: 8ad1062fed9f91eefd303fa1752f13f6daecb1d2 SHA-256: 386473461528f4f299ad99eeeb5dc7aad8f25d2e876d2a9ec09a41806fc20721
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links, including one identified as a malicious redirector, which is designed to lure users to potentially harmful websites. The document body and heuristics suggest a scam related to game hacks or free downloads, a common social engineering tactic. Although no scripts were directly extracted, the presence of embedded URLs and the nature of the lure indicate a high likelihood of leading the user to a malicious payload or phishing site.

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/minecraft-education-edition-free-download-game-hack In PDF document text
    • http://library.yamasi.ac.id//repository/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/redeem-roblox-card-free_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/hack-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-mod-version-free-download-v344_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/universal-minecraft-converter-free_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/can-tiktok-free-view-bot_GM835599320.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/como-hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-free-snacks-link_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/how-do-you-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-premium-free_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/tiktok-free-mockup_GM835599320.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/minecraft-windows-10-free-code_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/tryrbx-site-free-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/minecraft-redeem-code-free_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/minecraft-iphone-free_GM479516143.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000052e4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52E4 24848 bytes
SHA-256: cd382925037a22ea088436b6ea17c29c95c9c232ef969d38ea6456cce487e0a9
font_01_sfnt_off00008bba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BBA 18428 bytes
SHA-256: 3a678da037c633a6a13339b3c5a4bd8322cea022da4d3ccfe017faaa6041de20

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