Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a0c55d3fd95502a…

MALICIOUS

PDF

44.0 KB Created: 2021-06-03 08:17:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 87449f5c7182c7d077d0d3af6869b00e SHA-1: d723b3bb849b4911ce83f803e5f05ac30178e725 SHA-256: 2a0c55d3fd95502abcb020e675ea2db3f3d6efba2a55557ecb98feffbf218ff1
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/431946152/robux-today-game-hack In PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/is-roblox-hacked_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/minecraft-pe-016-0-apk-download-free_GM479516143.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/how-to-play-coin-master_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/free-spins-promo-code-for-coin-master_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/free-pokemon-go-accounts-level-30-2021_GM1094591345.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/free-robux-download_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/robux-today_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/free-robux-clothes_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/minecraft-creative-mode-free_GM479516143.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/coin-master-card-hack-2021_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/roblox-hack-com_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/scaffold-minecraft-hack_GM479516143.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/free-robux-today_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/earn-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/roblox-ftw_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/hack-coin-master-link_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/robux-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005109.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5109 24352 bytes
SHA-256: 030871b93b5676f93f128b650753188e3d4ae0515bdc95766eb7823c412ede80
font_01_sfnt_off000088c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88C8 18432 bytes
SHA-256: 959daec5ee9bc3c71d76c0b44e5e7b2fade628e041cf04f050b5917282f814df

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