Malicious PDF — malware analysis report

Static analysis result for SHA-256 2609c008f0f21a26…

MALICIOUS

PDF

41.8 KB Created: 2021-05-14 09:29:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 54c1f2867ac075f1b36b46641544d7a3 SHA-1: 89b9acc7f1d9d412ed2428cf6e52034ed68ea510 SHA-256: 2609c008f0f21a26f85ff8c5442d32c1bfe609a40741b3eab29934a2c53dbc01
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and websites offering 'free game hacks' or generators, indicating a lure for users to visit potentially harmful sites. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a malicious intent to redirect users to further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/479516143/free-minecraft-hosting-24-7-game-hack In PDF document text
    • http://italymania.ru/images/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • http://italymania.ru/images/static-moonactive-net-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/coin-master-mod_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/minecraft-online-free-download_GM479516143.pdfIn PDF document text
    • http://italymania.ru/images/facebook-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/coin-master-game-hacking_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/best-free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/cool-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://italymania.ru/images/easy-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • http://italymania.ru/images/minecraft-for-free-games_GM479516143.pdfIn PDF document text
    • http://italymania.ru/images/coin-master-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/rbxdemon_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/coin-master-code-hack_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_off00004963.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4963 24756 bytes
SHA-256: 11b0f15c002f432ceab26317a7bf0f5d72b67ff4af829b29696d4736744d7b42
font_01_sfnt_off000080fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80FA 18240 bytes
SHA-256: a1d0dda2a20c23c2f6b5d38f821eb00881ee16adc5cb924d70fa236c90a36e37

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