Malicious PDF — malware analysis report

Static analysis result for SHA-256 58a16e0db2b3ba12…

MALICIOUS

PDF

49.9 KB Created: 2021-05-12 09:30:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4e9de3dfe049b80b0a7e5996cca80840 SHA-1: 219d4ef4b0f46cacdfa79eb043da262b9c9455cb SHA-256: 58a16e0db2b3ba12681eda07ebc000f2240bbf1a43414481fcac6296b3448e52
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, disguised as game hacks or generators. The ML classifier also flagged this PDF as malicious. The embedded links likely serve to download further malicious content or redirect users to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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.xyz/app/431946152/free-robux-no-survey-game-hack In PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/legit-coin-master-hack-site-zyngaplayerforumscom_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/mathep_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-coin-master-free-spins-in-email_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/hack-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-free-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-make-a-roblox-group-for-free_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/minecraft-java-free-account_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-rare-cards-for-coin-master-christmas_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/hack-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-coins-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-roblox-com_GM431946152.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_003_off00004c40.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C40 38704 bytes
SHA-256: 60a2ba12f072f9db97af7d4a922c6b5b3f1ea6e2273502230a5987d7a4657e8b
font_01_sfnt_off0000a151.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA151 18308 bytes
SHA-256: d3a10f634c5ecc3d7353c949fdf4d39280fe41fff4e373acd575ae0d5bea3c9d

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