Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fe16238d7633de9…

MALICIOUS

PDF

34.2 KB Created: 2021-06-19 22:03:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 42ca83443f59aeb225ca91edc9e00f97 SHA-1: 76d5fb61bff1002a9e190661d7bb76c72acb2d40 SHA-256: 6fe16238d7633de93db20dcd3e06f57217d495b2ee89d6384f2dfd0915a3c821
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free generators, specifically targeting Roblox players. It contains multiple links to known malicious redirectors and further PDF files hosted on suspicious domains. The primary malicious activity observed is the redirection to potentially harmful content, 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.co/app/431946152/roblox-free-download-in-germany-game-hack In PDF document text
    • http://svadba-moda.kg/images/minecraft-download-free-download_GM479516143.pdfIn PDF document text
    • http://svadba-moda.kg/images/speed-hack-roblox-script_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/how-to-hack-in-to-notleah-roblox-acount_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/free-robux-from-watching-ads_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/apps-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/how-to-hack-survoivr-in-roblox-pc_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/roblox-social-link-cheat_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/how-to-get-free-followers-on-tiktok-fast_GM835599320.pdfIn PDF document text
    • http://svadba-moda.kg/images/free-roblox-hack-999999-robux-no-verification-in-pc_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/roblox-cheats_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/minecraft-font-free_GM479516143.pdfIn PDF document text
    • http://svadba-moda.kg/images/hacker-alert-roblox-id_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/free-roblox-accounts-and-passwords-with-100-robux_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/how-ro-get-free-robux-with-pastebin_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/get-free-robux-from-watching-ads_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/cheats-for-big-paintball-roblox_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/free-account-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/how-to-look-like-dio-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/free-robux-just-click_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_off00002e63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E63 22076 bytes
SHA-256: e373aaabae660f0748cb4ca6b8d5d80e97fbe254fe0c00d2330abd67baa27a1f
font_01_sfnt_off00005efa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EFA 19596 bytes
SHA-256: 6ffc829fc29d36fdfc8405146236cc1b3448618a0a7a3abc6d62411abd2d7d97

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