Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce40e02bf2bfc635…

MALICIOUS

PDF

39.5 KB Created: 2021-05-21 11:31:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 745660d0864a757281b03815f94aab74 SHA-1: a7e795024506b1e42d3bcdfbb9456cb5beea3cbe SHA-256: ce40e02bf2bfc6356f5a86dde88e2f4c4b330462edd65f220f737fb70b1dcaf0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirector infrastructure, specifically promoting 'free generator / game hack' lures. The document body text and embedded URLs reinforce this theme, aiming to trick users into visiting malicious sites. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly indicate a social engineering attack designed to lead users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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/835599320/how-to-get-free-tiktok-followers-no-human-verification-game-hack In PDF document text
    • http://www.tamogatoweb.hu/images/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.tamogatoweb.hu/images/how-to-hack-coin-master-root_GM406889139.pdfIn PDF document text
    • http://www.tamogatoweb.hu/images/coin-master-unlimited-spins_GM406889139.pdfIn PDF document text
    • http://www.tamogatoweb.hu/images/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://www.tamogatoweb.hu/images/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000033c8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33C8 25488 bytes
SHA-256: 14b28dc119b2aa34a6e2225400ac3c743fae3704c890cb59007dbb6e69850a1b
font_01_sfnt_off00006d87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D87 3244 bytes
SHA-256: a35f8d2d428e2f635eeb8def076b28b11e1cf32ebb319f4699558e394e54d3ec
font_02_sfnt_off000078ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78AC 18456 bytes
SHA-256: eee59764dc95beef93cba547837ee4e74c62f94e17e34c9fa30288a37f20bd77