Malicious PDF — malware analysis report

Static analysis result for SHA-256 2474fc611e7bf9d8…

MALICIOUS

PDF

35.3 KB Created: 2021-07-05 05:26:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: b745e0a40197751bf5acd75f3208e220 SHA-1: 4785e74c340ed17b8a146ed417fcbce2f196d1af SHA-256: 2474fc611e7bf9d84507cc9d812ee5cabe6bffb319e263cf328a39053b1b163b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and infrastructure, disguised as "free generator" or "game hack" lures. The document body and embedded links suggest a scam or phishing attempt to trick users into visiting potentially harmful websites. While no scripts were explicitly extracted, the PDF structure itself facilitates the redirection, aligning with T1059.007 if JavaScript were involved in the redirection chain, and T1566.001 as a likely initial access vector.

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.tw/app/406889139/hack-master-coin-game-hack In PDF document text
    • http://library.stieyapan.ac.id//repository/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/google-how-do-you-get-robux_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/roblox-redeem-card-codes-hack_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-spins-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/daily-coin-master-free-spin-link-facebook_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-hack-xyz-download-free_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/minecraft-that-you-can-play-for-free_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/roblox-robux-and-tix-hack-game_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/easy-way-to-get-robux_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-spin-hack-link_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-free-spins-and-coins-link-haktuts_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-in-app-purchase-hack_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/robux-robux_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/minecraft-net-free_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/free-op-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/minecraft-pe-apk-download-free-015-0_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/hack-coin-master-pc_GM406889139.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_off000032c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32C3 23556 bytes
SHA-256: fb03a4ce483193a0ed8faf523737447f14dd9b1e70ffe2c96a077a699a81c67c
font_01_sfnt_off00006814.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6814 18004 bytes
SHA-256: 342799f1f161efcabb4839124c54276811296689a2d4fdf7237b47f529afd2b8

Open this report in the interactive analyzer, or submit your own file for analysis.