Malicious PDF — malware analysis report

Static analysis result for SHA-256 bed7f785539634b3…

MALICIOUS

PDF

34.4 KB Created: 2021-07-06 09:46:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: b6e9213a7f9e63fb956d41ebe75bd8bc SHA-1: 70460a2352fd6972135c852bf29c3f950a61c889 SHA-256: bed7f785539634b3f391ff4c496784acefa03ab96dc776f216e77ebdd6739b96
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as game hacks and generators. The document body explicitly mentions 'game hack' and includes a URL that leads to such content. The primary malicious action is redirecting the user to potentially harmful websites, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/479516143/can-you-still-get-minecraft-windows-10-for-free-game-hack In PDF document text
    • https://pustaka.widyakartika.ac.id/repository/roblox-booga-booga-hack-installieren-deutsch_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/what-is-the-best-roblox-hack-youtuber_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/roblox-mobile-hack-tool_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-roblox-no-survey_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-admin-roblox-mega-vip_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-to-get-50-robux-free-2021_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/roblox-free-premium-v3rm_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/pokemon-go-free-account-generator_GM1094591345.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/new-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-to-get-free-hats-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/coin-master-daily-free-spin-and-coin-link-haktuts_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/real-robux-generator_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-to-get-anything-on-roblox-for-free-wikihow_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/roblox-free-draw-script_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/hacks-and-exploits-for-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-to-get-free-robux-easy-way_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-to-get-roblox-credit-for-free_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-online-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-roblox-glasses_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/roblox-getting-hacked_GM431946152.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_off00003135.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3135 21724 bytes
SHA-256: 9eed110eeb94fccd49b6f5ede9adc36576f4c6c32462239ed30055b0f6493176
font_01_sfnt_off000060cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60CC 19188 bytes
SHA-256: 5ae83d3d5d8149000e7841cfc0c736863ea64b7ab57d9f91b64f20a1c75fe470

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