Malicious PDF — malware analysis report

Static analysis result for SHA-256 a882f5b897fa03dd…

MALICIOUS

PDF

35.9 KB Created: 2021-06-29 10:41:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 6a80795ccbc4923db71870f8b0896e4a SHA-1: 0804a456e9256dd944f88865777987a1969f5241 SHA-256: a882f5b897fa03ddf1cde06408aee48a1a759bc2140bf5bf0ee23413cbcb4cb3
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 generators' or 'game hacks' for popular games. The document body explicitly mentions 'Download Dimond Roblox Hacks' and includes a primary URL pointing to such a download. While no scripts were extracted, the presence of malicious links and the lure content strongly suggest a phishing or malware distribution attempt.

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/download-dimond-roblox-hacks-game-hack In PDF document text
    • http://library.atim.ac.id/repository/minecraft-free-download-windows_GM479516143.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-off-of-roblox_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-chrome-web-store_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/hacks-de-roblox-may-2021_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/best-sites-for-free-robux_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-free-spins-link-facebook-page_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-get-my-hacked-account-back-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-hack-tool-without-verification_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/get-free-robux-using-no-surveys_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/daily-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-free-level-6-and-level-7-injectors_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/pop-slots-free-vegas-casino-slots-machine-game-coin-master_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-gain-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-guess-the-character-cheats_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-exploits-hacks_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/robloxs-download-free_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-do-you-get-free-food-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-get-robux-for-free-without-hacking_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_off00003152.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3152 23152 bytes
SHA-256: 6e9372fab73ba8fe930a304d721f7f67ff11cab379bc5843c718c59fae013fc0
font_01_sfnt_off000065c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65C0 19540 bytes
SHA-256: c76b4234efea465175532a6086c4ba31af5257d14aaf8e0629be80c2570e153d

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