Malicious PDF — malware analysis report

Static analysis result for SHA-256 1870b9ed30bb2929…

MALICIOUS

PDF

44.5 KB Created: 2021-05-15 07:14:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3ebe557138fa12ce52bc413453291552 SHA-1: 200cf5bd6ce47fc7c06607390d53cecd80e0309d SHA-256: 1870b9ed30bb29292b8052c6d54254076c8331e7810b39bb6708296427cba838
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector infrastructure, masquerading as game cheats or generators to entice users to click. The primary lure URL is https://netcdn.xyz/app/479516143/minecraft-cheats-pc-2021-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a malicious redirector designed to lead users to potentially harmful content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/minecraft-cheats-pc-2021-game-hack In PDF document text
    • http://zarinnameh.ir/images/coin-master-play-online-free_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/robux-free-2021_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/mine-minecraft-games-for-free_GM479516143.pdfIn PDF document text
    • http://zarinnameh.ir/images/coin-spin_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/coin-master-hack-version-ios_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/minecraft-free-download-windows_GM479516143.pdfIn PDF document text
    • http://zarinnameh.ir/images/earn-free-robux_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/free-robux-today_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/coin-master-game-hack-version-download_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/cheating-hacks-for-coin-master_GM406889139.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A85 24320 bytes
SHA-256: ce9603d6413200e4c22047220939f33d35c4427f85d4a735d6169152a6093ac2
font_01_sfnt_off00008121.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8121 2980 bytes
SHA-256: dabe26669366bf19ed3b4c56ef103522034f0dd800fa7e89b53a00a6a510367a
font_02_sfnt_off00008b6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B6C 18292 bytes
SHA-256: 2d037195ba652ec1c948f4cf72bc757aedb522eec45588ee568a5b79e45c6912

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