Malicious PDF — malware analysis report

Static analysis result for SHA-256 002b95dd96562f5d…

MALICIOUS

PDF

33.5 KB Created: 2021-06-18 23:06:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 854fcf7824c5c34477aa0925d547f389 SHA-1: c796591e079b4f9d61d913a8c8d27bde0966d03c SHA-256: 002b95dd96562f5d2f89f3a40b14b8596c9658d296c0a3efdb1f2fe3f5d5fbf3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with game-related cheats and hacks. The primary malicious URL identified is http://netcdn.co/app/431946152/assassin-2-roblox-hack-khnif-game-hack, which is associated with a game hack lure. The document body and embedded URLs suggest a phishing or malware distribution attempt disguised as a generator or hack tool.

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.co/app/431946152/assassin-2-roblox-hack-khnif-game-hack In PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/coin-master-get-free-spins_GM406889139.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/minecraft-cheats-pc-2021_GM479516143.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/pastebin-free-roblox-usernames_GM431946152.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/how-to-hack-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/vasilis-roblox-hack-exe_GM431946152.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/roblox-bot-free_GM431946152.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/roblox-free-clothes-codes_GM431946152.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/how-to-earn-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/roblox-money-hack_GM431946152.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/roblox-heroes-online_GM431946152.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.nelsonssales.com/media/storage/editor/files/free-robux-no-hack-no-survey_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_off00002eb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB0 21592 bytes
SHA-256: 853828d6edcb7d54c42c6f54ce605ba8297bf7070ca790fe5149898183fd84a5
font_01_sfnt_off00005dd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD8 19064 bytes
SHA-256: 9ce56160b886ef381d4b1ba89b9d93236e54a7b52dea5e6e9fc6a7b3cd419b49

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