Malicious PDF — malware analysis report

Static analysis result for SHA-256 e92ee06c4f561eca…

MALICIOUS

PDF

43.7 KB Created: 2021-06-13 21:12:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 107a51413c8271a1d2720a459c358c2b SHA-1: 4a73213b1473bbab0615ade80fcda9a5434aecc2 SHA-256: e92ee06c4f561ecaa9b47c484a283c801cc4d8354c6213c012ada86a7b467854
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs designed to lure users into downloading potentially unwanted or malicious software, disguised as game hacks or generators. The primary malicious URL, http://netcdn.co/app/431946152/roblox-download-pc-windows-10-free-game-hack, is identified as a known malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an intent to redirect users to malicious sites, likely for malware distribution or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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-download-pc-windows-10-free-game-hack In PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/wwwcoin-master-free-spincom_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/is-minecraft-free-on-computer_GM479516143.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/description-roblox-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-coin-master-links_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-robux-scam_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/coin-master-free-spins-for-iphone_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/roblox-gang-rape_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/roblox-devil_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/download-coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/coin-master-free-spins-2021-ios_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-10-dollar-roblox-card-codes_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/no-human-verification_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-robux-com-real_GM431946152.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
stream_003_off00004ac4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AC4 25376 bytes
SHA-256: cf1d5c6b3609dec2643ef84ff3dd769fe593617345abf78e56385fa9ce0d632d
font_01_sfnt_off000084f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84F8 19432 bytes
SHA-256: eb693d40819e970e04bdef4f03d4342e711ce4b1828ccb2f1f33824affa7a68f

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