Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed9e42bffe04da8f…

MALICIOUS

PDF

36.3 KB Created: 2021-05-23 01:11:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 196393fa5618e3139ad58c99b6f6253f SHA-1: 590d50c32f1a0c904857af57d83bb5a33d056379 SHA-256: ed9e42bffe04da8f879d0c0c0e9b528013b9981249a53fddc2bdc28bd9f5b04f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as game-related generators. The primary lure appears to be a "Coin Master Free Spins Link" leading to a malicious URL. While no scripts were directly extracted, the PDF structure and embedded links strongly suggest a phishing or scam attempt to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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/406889139/coin-master-free-spins-link-blogspot-game-hack In PDF document text
    • http://um.mankotapalangkaraya.my.id/__statics/gudangsoal/files/how-to-get-free-coins-on-tiktok_GM835599320.pdfIn PDF document text
    • http://um.mankotapalangkaraya.my.id/__statics/gudangsoal/files/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
    • http://um.mankotapalangkaraya.my.id/__statics/gudangsoal/files/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://um.mankotapalangkaraya.my.id/__statics/gudangsoal/files/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://um.mankotapalangkaraya.my.id/__statics/gudangsoal/files/websites-to-get-free-robux_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_002_off00003293.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3293 24692 bytes
SHA-256: 29da12efaac78948241ae26a645e5f7d257df519ba6d2bb47b5eca333f825cff
font_01_sfnt_off00006b74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B74 18632 bytes
SHA-256: bdbf3986ec68ee3b496ae89412d1d0f392e3b826f1ca321ec58289079c9e4546

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