Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ddec9e43ffafa06…

MALICIOUS

PDF

34.7 KB Created: 2021-07-03 12:48:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: e29e48c932e99a9e42f8414d3b903838 SHA-1: 0581a8e5bdff6cad73292997cd597411d250d02c SHA-256: 2ddec9e43ffafa0601dd9749f5a467a65bf6a3d48a161973dcce119563e2ed82
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious websites, masquerading as game hacks and generators for popular games like Minecraft and Roblox. The primary heuristic firings indicate a malicious redirector infrastructure and a lure for game hacks. The embedded URLs are designed to trick users into visiting potentially harmful sites, likely to deliver further malware or engage in phishing.

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/479516143/xray-mod-minecraft-114-game-hack In PDF document text
    • http://lib3tell.stptrisakti.net/repository/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/roblox-redeem-card-codes-free_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/boku-no-roblox-remastered-buy-hack-sellygg_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/www-cheatsk-com-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/coin-master-hack-account_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/cheat-roblox-gasoil-simulator_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/do-coin-master-hacks-work_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/hack-coin-master-online_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/coin-master-hack-apk-download-2021_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/get-free-robux-info_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/can-you-give-me-robux_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/coin-master-free-spins-link-2021-hack_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/wwwcoin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/roblox-g_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/twitter-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/free-spins-coin-master-links-blogger_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/link-coin-master_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/roblox-free-play-no-download_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/free-robux-pastebin_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_off00002fc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FC1 23260 bytes
SHA-256: b4b741a0a48c40738264ebd066fc00c7bb5a366aaf32e9524e6a2447805ba98b
font_01_sfnt_off0000633a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x633A 18748 bytes
SHA-256: 5b442dcc3f3349fc6fd674a71fa96c6a55f9280713babfbda9777be484e1b5e5

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