Malicious PDF — malware analysis report

Static analysis result for SHA-256 49b3b1a843122b39…

MALICIOUS

PDF

35.1 KB Created: 2021-06-29 15:48:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 56eb176b4a18bda55d618ad48a5a82b7 SHA-1: b92bc2b257c8f678b845b10bd79779b907e35924 SHA-256: 49b3b1a843122b3914e113bb92baa5cc93374a4cbca3fe698dd8f7d1be9006b6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains multiple links that redirect to malicious infrastructure, disguised as game hacks and generators. The primary lure appears to be related to 'Roblox' and 'Coin Master' cheats. The document body and embedded URLs strongly suggest a phishing or scam attempt to redirect users to potentially harmful content or further malicious downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/roblox-salvage-hack-game-hack In PDF document text
    • http://muslib.unmus.ac.id//repository/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-free-download-ps3_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-free-robux-hack-youtube_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/cpbildco-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/javascript-free-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/coin-master-332-apk-free-download_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/cheats-fro-csgo-in-roblox_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-links-to-free-spins_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/hacks-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-mod-apk-unlimited-robux-2021-download-free_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-get-robux-free-sin-pastebin-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/coin-master-coin-hack_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-cheat-install_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-get-free-wings-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-free-spins-no-human-verification_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-place_GM431946152.pdfIn 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
font_00_sfnt_off00003140.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3140 23016 bytes
SHA-256: e50ae9887258365508e952639a8c97fc60eda06180cf5c94fabd437c00bc8ff4
font_01_sfnt_off000064e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64E9 18768 bytes
SHA-256: c6a4e3ac98a9e012ea23aadc9204395755f479284316de944bb79f7331cc7efb

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