Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bae387fda9ccfb2…

MALICIOUS

PDF

45.0 KB Created: 2021-06-04 03:20:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: ff94f007c1131a7825fa81ff734f5d94 SHA-1: c8980fbe27c4e5818653d39cc8937e5deec6605d SHA-256: 7bae387fda9ccfb2bb41591b0d3e3275064a2082b7a8f03796cd93dc820db54c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks and free downloads. The primary lure URL is https://netcdn.online/app/479516143/minecraft-education-edition-free-download-game-hack, which is flagged as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to trick users into downloading further malicious content, likely through a drive-by download or a phishing lure.

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
    • https://library.fdk.ac.id/repository/free-robux-live_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-coin-master-spins-and-coins-for-daily_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/minecraft-realms-free-trial_GM479516143.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-download_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-hack-quora_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-spin-hack-link_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-find-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-likes-on-tiktok_GM835599320.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-spin-and-daily-news-coin-master_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-coin-master-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-hack_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-give-robux-on-mobile_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-free-spins-only_GM406889139.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_off0000509a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x509A 27552 bytes
SHA-256: 75145dc9b5589d51671919b53522f4be280293f3f764676567f1d44471e7a06b
font_01_sfnt_off00008d18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D18 18428 bytes
SHA-256: 3a678da037c633a6a13339b3c5a4bd8322cea022da4d3ccfe017faaa6041de20

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