Malicious PDF — malware analysis report

Static analysis result for SHA-256 292d7d18576b38ce…

MALICIOUS

PDF

44.5 KB Created: 2021-06-03 13:54:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: f36de708225b7948bf05fd74af17b74f SHA-1: 8fdd1ddfdd5a465d4ac64b53efd5882750cf1326 SHA-256: 292d7d18576b38ce9a8e6a57be9b11ad8fbffbd13f60b28c54ae77224996c600
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains multiple links to websites offering game hacks and downloads, identified as malicious redirectors. The document body and embedded URLs strongly suggest a lure for users interested in obtaining in-game advantages, which is a common social engineering tactic. The ML classifier also flagged this PDF with high confidence, indicating malicious intent.

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/406889139/coin-master-hack-2021-app-download-game-hack In PDF document text
    • http://elibrary.perludem.org/repository/hack-download_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/www-coin-master-hack-tk_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/free-star-codes-roblox_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/earn-robux-today_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/i-cant-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/how-to-earn-robux_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/2021-roblox_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/coin-master-34-6-hack_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-use-redstone_GM479516143.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/gold-cards-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/android-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/coin-master-free-spins-deutsch-download-2021-link_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/is-minecraft-earth-free_GM479516143.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/coin-master-free-spins-generator_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/rbxcity-free-robux_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-coin-master-spins-no-verification_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/coin-master-free-coins-spins_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_off00004e72.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E72 25828 bytes
SHA-256: 23bdd4b84865bb2c7b48b5e77c2a183475d861e8c6e44c9a1fdd83fb18105407
font_01_sfnt_off00008956.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8956 18876 bytes
SHA-256: d7d40464d831938cfa9caec420339d0a09463e275fb7b32e55518fa26c88094b

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