Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7bf65707a380454…

MALICIOUS

PDF

42.5 KB Created: 2021-05-10 18:32:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 35db875cbe315d2e3193e9b9461937b4 SHA-1: a9edefa3523a4eb2d49c44c204109f31fc1cd05e SHA-256: e7bf65707a380454d01b6e40d2f1510ff48ecf50e32970bd9859d1292bab474a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that lead to a known malicious redirector, promising free game generators and hacks. The primary lure is for 'Coin Master Free Spins Hack'. The document body and heuristics indicate a social engineering tactic to drive users to potentially malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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-hack-without-human-verification-game-hack In PDF document text
    • http://britishcomics.com/images/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • http://britishcomics.com/images/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • http://britishcomics.com/images/coin-master-free-spins-2021-today_GM406889139.pdfIn PDF document text
    • http://britishcomics.com/images/minecraft-net-download-free_GM479516143.pdfIn PDF document text
    • http://britishcomics.com/images/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://britishcomics.com/images/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
    • http://britishcomics.com/images/how-to-make-your-own-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://britishcomics.com/images/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://britishcomics.com/images/generator-robux_GM431946152.pdfIn PDF document text
    • http://britishcomics.com/images/hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • http://britishcomics.com/images/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • http://britishcomics.com/images/coin-master-hack-version-2021-download_GM406889139.pdfIn PDF document text
    • http://britishcomics.com/images/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://britishcomics.com/images/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://britishcomics.com/images/free-stuff-on-roblox-2021_GM431946152.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_003_off000047c7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47C7 25956 bytes
SHA-256: 7d7e2dd6620fd8984b6fd8aa2dd8709420229895a3046fcef4cc1a613454cb29
font_01_sfnt_off00008245.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8245 18952 bytes
SHA-256: bbe995309b6761320a89de429a491d1b27525b5c8b766f3497e3cab7bbe78ffa

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