Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc58dc228f8fda4c…

MALICIOUS

PDF

33.7 KB Created: 2021-07-20 09:50:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 022702dbce3e72dd624b35277ab4df2b SHA-1: d95a1e4b232375a0b944a1d7688c34e28346ac38 SHA-256: cc58dc228f8fda4c2ec1c1466a7b1653ae2545cf2715b6d1468533df4bf7cc0c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to websites that are either known malicious redirectors or host potentially unwanted content, such as game hacks and free currency generators. The document body and embedded links suggest a lure to trick users into visiting these sites, likely as part of a phishing or malware distribution scheme. No scripts were extracted, but the presence of numerous malicious links indicates a high likelihood of a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9946

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 http://netcdn.tw/app/835599320/free-tiktok-likes-without-verification-game-hack In PDF document text
    • http://sportagon.be/images/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://sportagon.be/images/minecraft-build-hacks_GM479516143.pdfIn PDF document text
    • http://sportagon.be/images/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • http://sportagon.be/images/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
    • http://sportagon.be/images/robux-free-online_GM431946152.pdfIn PDF document text
    • http://sportagon.be/images/free-robux-app_GM431946152.pdfIn PDF document text
    • http://sportagon.be/images/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://sportagon.be/images/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://sportagon.be/images/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • http://sportagon.be/images/free-robux-kid-friendly-no-human-verification_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
font_00_sfnt_off00002e8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E8D 22800 bytes
SHA-256: 9062ffd6964b0e9d8220f6f1592cb51e6e5cb8b58df86789cb07bf5be57070c9
font_01_sfnt_off000061c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C4 18324 bytes
SHA-256: 2890867b549cf671f2c98eef92adc8de00a1acce0cbbf08ac1c0ae5a6c34295b