Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f9200318daa5546…

MALICIOUS

PDF

36.3 KB Created: 2021-06-26 09:25:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 2139538ebf14ff79f552776b81605af7 SHA-1: 0808304ac2dbbd672c8b08d4fc4fa1e046d1984e SHA-256: 5f9200318daa5546849fbc04f249d0d024f580c620a98ac80f85e7868d161109
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to free game items and hacks, directing users to a known malicious redirector. The document body contains obfuscated text and multiple URLs, including the primary redirector http://netcdn.co/app/431946152/how-to-get-free-elite-on-roblox-murder-mystery-2-game-hack. No scripts were extracted from this sample, but the embedded URLs and the nature of the lure strongly suggest a phishing or malware distribution attempt.

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/how-to-get-free-elite-on-roblox-murder-mystery-2-game-hack In PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-roblox-website_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/ok-google-free-roblox_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/protosmasher-free-download-roblox_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-robux-gift-card-codes-generator_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-magnet-simulator-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-free-models_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/hacking-tools-roblox-2021_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/hack-roblox-games2021_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/coin-mast-hacks_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/coin-master-free-daily-spins-today_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-hack-pubg-mobile-unlimited-uc-without-human-verification_GM1330123889.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/addidas-tracsuit-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-get-a-free-dominus-in-roblox_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-roblox-no-hack_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-robux-gift-cards-2021_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/funny-hack-scripts-roblox-pastebin_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/coin-master-hack-no-verification_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_off000033e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33E8 22584 bytes
SHA-256: 92d874dfd744a224f41444fe9373453f2b0b8dc0a244ac382073aca30c45a6ec
font_01_sfnt_off00006683.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6683 19852 bytes
SHA-256: 3b2d0e465a4290ee10349951b923888c6578dcf8dbe1aa0162466e8c123f284f

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