Malicious PDF — malware analysis report

Static analysis result for SHA-256 1371637b0a047c56…

MALICIOUS

PDF

34.5 KB Created: 2021-06-18 05:01:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 4913e699da1389ee61ddcf0715c1cf88 SHA-1: 6a0f273af247931dfeb07b0f581e42fa04544afe SHA-256: 1371637b0a047c56c9fd0e0124d6546950525ed009eecb8f43b80dca67a0a63a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for game hacks and free currency, directing users to a malicious redirector URL. The document body and heuristics indicate a phishing attempt designed to trick users into visiting potentially harmful sites. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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-hack-exploit-troll-game-hack In PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-link-31-march-2021_GM406889139.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/app-store-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/roblox-free-models_GM431946152.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/coin-master-apk_GM406889139.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/ho-to-get-free-glowing-skirt-on-royale-high-roblox_GM431946152.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/coin-master-link-spin_GM406889139.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/coin-master-gift-hack_GM406889139.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/coin-master-no-download-app-but-play-for-free_GM406889139.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/minecraft-windows-10-edition-hacks_GM479516143.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/coin-master-gold-cards-free-link_GM406889139.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/book-on-how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/how-to-get-free-spins-on-coin-master-iphone_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003075.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3075 22348 bytes
SHA-256: 4cc8cbcfcaf9ea51d3d4be5e4a8faafbe244b233a223d771ba82ad23b0a8ae9a
font_01_sfnt_off00006262.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6262 18872 bytes
SHA-256: 28d95c618eea89c8a2ee358ecd96c23e99610f8b838e761f0c59ee58353ec75b

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