Malicious PDF — malware analysis report

Static analysis result for SHA-256 72a200f5f7b9a96c…

MALICIOUS

PDF

38.9 KB Created: 2021-05-21 15:04:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 28078cc43e0464d8a866888ca3c8c3c6 SHA-1: 020f70ba1c68e58b922e32bcb426c00d6bff9ec6 SHA-256: 72a200f5f7b9a96c0a4e4a77d3c6baf03bc56fcfbe22762a71699ececd2bca65
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_GAME_HACK_REDIRECT_LURE heuristics. The document body and embedded links promote 'free generators' and 'game hacks' to entice users to click, which is a common social engineering tactic. The ML classifier also flagged this PDF as malicious.

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/479516143/how-to-download-minecraft-for-free-on-iphone-game-hack In PDF document text
    • https://jdlgroup.ca/images/coin-master-hack-apk-download-for-android-mobile_GM406889139.pdfIn PDF document text
    • https://jdlgroup.ca/images/when-pubg-uc-available_GM1330123889.pdfIn PDF document text
    • https://jdlgroup.ca/images/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://jdlgroup.ca/images/games-on-roblox-that-give-you-free-robux_GM431946152.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_off000034da.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34DA 24132 bytes
SHA-256: 3995320dc5acaf4fc3c9dd76fe283f27341ab98cdef5a7281f6d94b1c9855a2a
font_01_sfnt_off00006bde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BDE 2856 bytes
SHA-256: 8c5d9bcb386d88c7f99323d8d482e46ea21dea038a5b842744dd5d39b26b2c44
font_02_sfnt_off000075b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75B5 18632 bytes
SHA-256: a38ec870b75b85e502f421fe1ead362eb1db7184f5387a13d9ce5f1a3d5be23c

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