Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4cc353cb22b8490…

MALICIOUS

PDF

36.2 KB Created: 2021-05-21 17:33:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 363a4ea3326584028be9440f7a30af53 SHA-1: fb744bfc3badd81f6cedb02ff9ed11e338f8abef SHA-256: d4cc353cb22b8490dba85d8de59d88ff1b3ea0abb4673303f114e3b284dc243f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures related to game hacks and free spins, directing users to a known malicious redirector. The document body explicitly contains the URL 'https://netcdn.xyz/app/406889139/free-daily-spins-coin-master-2021-game-hack' and multiple other suspicious URLs, indicating a phishing or redirection attempt. The ML classifier also flagged this PDF as malicious.

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/free-daily-spins-coin-master-2021-game-hack In PDF document text
    • http://xn----ttbgfkcjc5fd.xn--p1ai/images/free-games-like-coin-master_GM406889139.pdfIn PDF document text
    • http://xn----ttbgfkcjc5fd.xn--p1ai/images/cm-free-spins_GM406889139.pdfIn PDF document text
    • http://xn----ttbgfkcjc5fd.xn--p1ai/images/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • http://xn----ttbgfkcjc5fd.xn--p1ai/images/coin-master-hacks-xyz_GM406889139.pdfIn PDF document text
    • http://xn----ttbgfkcjc5fd.xn--p1ai/images/minecraft-pe-apk-free-download_GM479516143.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_002_off00003153.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3153 24780 bytes
SHA-256: bbd13d57cea2d8820e170b0e4080b04e0e569c41d7a5de5440c84cc5e0b20b11
font_01_sfnt_off00006ac6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AC6 18708 bytes
SHA-256: c65851a3c2ccf8ba249fbb480ab00bab2dc65c52c70fe6f18183c59a9b34b022

Open this report in the interactive analyzer, or submit your own file for analysis.