Malicious PDF — malware analysis report

Static analysis result for SHA-256 8bf29b1b60c5dd37…

MALICIOUS

PDF

59.7 KB Created: 2020-08-29 03:37:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 481debd29f8b612f80ada270c3ab6d2a SHA-1: 788483d1080b5d84add3e7f1f3f41220c3f4e6ae SHA-256: 8bf29b1b60c5dd374daab6cb342623447638e6ab20d185070acfe523d00180f2
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged for containing a large number of external links, a common tactic for SEO poisoning or link farms. One of these links, 'https://ttraff.ru/wix?keyword=mr+do+snes', is identified as a known malicious redirector. This suggests the document's primary purpose is to lure users to malicious infrastructure, likely for phishing or malware delivery.

Heuristics 3

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ttraff.ru/wix?keyword=mr+do+snes
    • https://static.usrfiles.com/ugd/b8c837_f869c9e6f1204f20bb41cb2ded25ac0e.pdf
    • https://static.usrfiles.com/ugd/b8c837_287d2d8c63264107ba528b87198bb9c4.pdf
    • https://static.usrfiles.com/ugd/b8c837_4bb78c9e5d064837b2103118abe422fc.pdf
    • https://cdn.shopify.com/s/files/1/0434/4555/1271/files/jiluvolilubigezatiwat.pdf
    • https://cdn.shopify.com/s/files/1/0461/9400/0023/files/aake_teri_bahon_mein_dj_song.pdf
    • https://cdn.shopify.com/s/files/1/0430/8385/8074/files/55331113876.pdf
    • https://cdn.shopify.com/s/files/1/0428/6673/7311/files/kawisisabowokufelowi.pdf
    • https://cdn.shopify.com/s/files/1/0433/4403/5993/files/zibogowumewoge.pdf
    • https://cdn.shopify.com/s/files/1/0434/2556/2791/files/87821715598.pdf
    • https://cdn.shopify.com/s/files/1/0430/5007/4269/files/86735112355.pdf
    • https://cdn.shopify.com/s/files/1/0430/2897/1674/files/kowarubekeviwaku.pdf
    • https://cdn.shopify.com/s/files/1/0434/3254/2369/files/wolomenudenefimi.pdf
    • https://cdn.shopify.com/s/files/1/0431/2072/2080/files/berid.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gekisemegudifusoledo.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • https://cdn.shopify.com/s/files/1/0430

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ab9.bin
61c85a8fab1f6aa3bbbbc075c3584902983aea6b84386b34d16be54ad21c84df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AB9 21364 bytes
font_01_sfnt_off0000ae4e.bin
ce95fc183289802d12b89d9595bd32be165f71e81f0d7ab3f60465bdd68fde27		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAE4E 4580 bytes
font_02_sfnt_off0000bdf8.bin
465cad22ded89b43b4b3d5374d51b83489cc657d43fc672a24cdfe7a361fb7bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBDF8 10424 bytes

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