Malicious PDF — malware analysis report

Static analysis result for SHA-256 795909e2d3ecc7d3…

MALICIOUS

PDF

34.4 KB Created: 2021-06-28 07:46:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 5634a6719a821278fb7700c18daeb51b SHA-1: 06ce0ef80c9d14e98c94ee56707d83d9b46dfa4d SHA-256: 795909e2d3ecc7d3beb10dfc8bb8684b4911f5324a9779a8cc13c868e7c620a7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to external websites that are advertised as "free generators" or "hacks" for popular games. One of the primary links, http://netcdn.co/app/431946152/roblox-admin-commands-hack-download-2021-game-hack, is flagged as a malicious redirector. The document's content and the presence of these links strongly suggest a social engineering tactic to trick users into visiting malicious sites, likely to download malware or engage in other fraudulent activities.

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-admin-commands-hack-download-2021-game-hack In PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/como-ser-hacker-en-roblox-en-movil_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-gifts-coin-master_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/coin-master-cracked-apk-free-download_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/hack-mod-coin-master_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/robloxcom-without-download-free-game_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/all-free-roblox-emotes_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/coin-master-hack-mod-apk-unlimited-spins_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-thanos-shirt-roblox_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/roblox-retail-tycoon-116-ifinite-money-hack_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/anyway-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/copy-and-paste-for-free-robux_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/coin-master-tips_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/pase-bin-roblox-hack_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_off00003088.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3088 21156 bytes
SHA-256: 2b2ddada8a279f326ffeccb003cfdf473f5c48e7e02e09744526d3e9480e33a5
font_01_sfnt_off00005eb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB6 19944 bytes
SHA-256: fe66caf1b846427d199d7d55c34ea70ffc9bc0dffbbd54fe6d915a0128009562

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