Malicious PDF — malware analysis report

Static analysis result for SHA-256 14e29bd6340e4087…

MALICIOUS

PDF

34.8 KB Created: 2021-07-04 13:21:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: e8c77360b06c2a01f91efc29b8dc775d SHA-1: 989edc4e6721d92548769e8d0f58f7fcd20deacd SHA-256: 14e29bd6340e4087ddc7ee5c76393ceeab10acb44664f004cde7163624873628
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to a known malicious domain, masquerading as a game hack generator. The ML classifier strongly flagged this PDF as malicious, and the presence of a download button lure further supports a malicious intent. The primary goal appears to be redirecting users to potentially harmful content or further malicious downloads.

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/free-coins-on-coin-master-without-verification-game-hack In PDF document text
    • http://library.umla.ac.id/repository/minecraft-iphone-free_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id//repository/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/how-to-find-out-roblox-speed-code-for-speed-hack_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/coin-master-level-4_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/coin-master-daily-free-spins-today_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/free-minecraft-client_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id//repository/coin-master-links-for-free-spins_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/coin-master-34-6-hack_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/free-spin-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id//repository/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id//repository/coin-master-hack-link_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/tiktok-free-like-and-views_GM835599320.pdfIn PDF document text
    • http://library.umla.ac.id//repository/haktuts-coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/roblox-island-royale-cheats-for-bucks_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/get-more-robux_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/how-to-get-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id/repository/without-pokemon-go-free-coins_GM1094591345.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_off000032d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32D5 22268 bytes
SHA-256: 7c43b11654add86b27ac8e668cadafb1a13ccb0c3c71c80c7bcc7c06291d395c
font_01_sfnt_off00006449.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6449 18636 bytes
SHA-256: 2d0dfdadec495ae8f46a0d5e7d8d74b83aa87cfc5a4623dcc77c547a69cc94c8

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