Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e749b417fe95029…

MALICIOUS

PDF

48.5 KB Created: 2021-06-03 07:05:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 3d67ba360dc5a0df47fa9588df7064e3 SHA-1: fda7a38af5c60a73bb8870e1057928301021dbff SHA-256: 2e749b417fe9502972b2251697c515f002b3c01f2ce37a8a719ff5d874a0e1cf
220 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to external websites, including a primary redirector disguised as a game hacking tool. The document body and heuristics indicate a lure for users interested in game cheats, which then redirects to malicious infrastructure. The presence of numerous SEO-optimized PDF links suggests a link farm designed to drive traffic to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.online/app/431946152/how-to-hack-games-like-roblox-game-hack In PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/hack-coin-master-343-apk_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/hack-to-protect-village-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/coin-master-hack-ios-download-2021_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/roblox-free-bundles_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/coin-master-free-download-for-pc_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/free-robux-codes-not-used_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/coin-master-free-spins-link-no-verification-code_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/coin-master-code-hack_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/minecraft-xbox-one-free_GM479516143.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/coin-master-coin-hack_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/can-you-still-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000525e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x525E 25560 bytes
SHA-256: 534d520b8d4ea7a6804e7597367f422724f83815f319e1192040653a86d72b92
font_01_sfnt_off00008c7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C7B 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off0000998d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x998D 18724 bytes
SHA-256: fa24e9774d1bf7779305a2a3bd481a5db599e17c67c46f88cc14971b2afd365d

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