Malicious PDF — malware analysis report

Static analysis result for SHA-256 477768dcc0f65e52…

MALICIOUS

PDF

37.2 KB Created: 2021-05-11 08:40:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9dcdd2778002771265f68e1f66c5a00c SHA-1: aa70f10f41596769b7ad93b53f6f3181a4735acf SHA-256: 477768dcc0f65e5287412e27684502e77d9ab121bbbe3d52068b42abc1807ded
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains embedded links that redirect to a known malicious URL, masquerading as a game hack generator. The document also visually presents a download button and instructs the user to click it, further encouraging malicious interaction. While no scripts were directly extracted, the nature of the embedded links and the lure suggest an attempt to deliver a second-stage payload.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

Heuristics 5

  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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/479516143/minecraft-pocket-apk-game-hack In 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_off000035d7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x35D7 25932 bytes
SHA-256: 90598eba539f1f592e7b5d9d0473d5504ae473db36776092fc5cf6a0dc710f18
font_01_sfnt_off0000706c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x706C 18208 bytes
SHA-256: 43fabaa7baa2069dea089d396f6a12271a87df7a231cffc83c7f5458ac3d8eee

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