Malicious PDF — malware analysis report

Static analysis result for SHA-256 89a2f38550b8310f…

MALICIOUS

PDF

40.1 KB Created: 2020-08-15 10:43:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2a246c0f56d6190c5e76594d520c658f SHA-1: 4e7990984dc65714a42cc4688e3d1296250fef5e SHA-256: 89a2f38550b8310f8407626b85e92fc4770cf74eb127db060ccb6a3150f0deb4
130 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link and a mass of external PDF links, masquerading as a "create book mockup template" lure. The presence of a visual download button further supports the social engineering aspect. The primary malicious IOC is the redirector URL, which likely leads to further malicious content.

Heuristics 4

  • 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.
  • 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://ttraff.cc/pify?keyword=create+book+mockup+template
    • http://kukug.bellcreek.net/uploads/1/3/2/8/132814930/8697597.pdf
    • http://files.journeyinvestments.co/uploads/1/3/1/4/131453969/7618256.pdf
    • http://gesijido.chloejmkim.com/uploads/1/3/0/7/130740146/841681.pdf
    • http://pofidixa.horleycricketclub.co.uk/uploads/1/3/0/7/130775918/469642.pdf
    • https://cdn.shopify.com/s/files/1/0432/9088/6312/files/bible_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37872338034.pdf
    • https://cdn.shopify.com/s/files/1/0432/6971/8172/files/ciencia_ficcion_libros_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87074842841.pdf
    • https://cdn.shopify.com/s/files/1/0432/2541/5843/files/64824143439.pdf
    • https://cdn.shopify.com/s/files/1/0430/7664/9127/files/vapapiju.pdf
    • https://cdn.shopify.com/s/files/1/0429/7749/3146/files/xuzapab.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/online_movies_maza.pdf
    • https://cdn.shopify.com/s/files/1/0434/6816/1176/files/17023572948.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000061ad.bin
ac11f4369b25130ebb12c67b2901275dfa994329a2542020f2e278b199853c85		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61AD 5008 bytes
font_01_sfnt_off00007299.bin
0f7122da3438bb5e088d569c159bd1cc79e3a617a73b4a9c6559023355d5cc37		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7299 9832 bytes

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