Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce36463b0ce37d8d…

MALICIOUS

PDF

42.9 KB Created: 2020-08-11 04:56:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46ef5a09467991307da4b53166435e61 SHA-1: 308b5feb186f06b0ee05d7ee2346a9b8699e2350 SHA-256: ce36463b0ce37d8de8b772f0126b585d3dff000b98d20791b930b4566f129685
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to lure users to malicious content. The document body, though heavily obfuscated, contains the same URL and appears to be a lure related to chemistry to encourage clicks. The presence of numerous other links to Shopify-hosted PDFs suggests a link farm or SEO poisoning tactic to increase visibility and click-through rates.

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.cc/pify?keyword=semin%25C3%25A1rn%25C3%25AD+cvi%25C4%258Den%25C3%25AD+z+obecn%25C3%25A9+a+anorganick%25C3%25A9+chemie+pdf
    • http://files.in2scotland.com/uploads/1/3/0/7/130739590/netuxenexow-vijuwunapite-mukizus-ruliposobu.pdf
    • http://xulitore.corridordemoday.com/uploads/1/3/0/8/130814328/naxelubidibara_nosuluf_tesoja_pawunuwifaxonak.pdf
    • http://files.chichestercroquet.org/uploads/1/3/0/7/130776888/tasuzikibuk-nilenime.pdf
    • http://files.romanodacosta.com/uploads/1/3/1/4/131454696/c239b1a507.pdf
    • http://files.carolinewatson.org/uploads/1/3/1/6/131606677/gajebebawerono.pdf
    • https://cdn.shopify.com/s/files/1/0431/1298/8821/files/mutuxajixuveti.pdf
    • https://cdn.shopify.com/s/files/1/0433/6972/6110/files/29593221832.pdf
    • https://cdn.shopify.com/s/files/1/0430/9336/0801/files/becoming_a_supple_leopard_2nd_edition_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/desemitevageso.pdf
    • https://cdn.shopify.com/s/files/1/0433/0638/5573/files/visuxozasamixeduwovirare.pdf
    • https://cdn.shopify.com/s/files/1/0431/5434/2042/files/webmail_rci_rutgers_edu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1564/3042/files/an_inspector_calls_book.pdf
    • https://cdn.shopify.com/s/files/1/0433/4069/3662/files/47451941146.pdf
    • https://cdn.shopify.com/s/files/1/0428/1673/3340/files/9224011879.pdf
    • https://cdn.shopify.com/s/files/1/0433/4426/5366/files/the_reasoned_schemer.pdf
    • https://cdn.shopify.com/s/files/1/0430/7084/9181/files/25495138248.pdf
    • https://cdn.shopify.com/s/files/1/0427/4041/6678/files/bebuva.pdf
    • https://cdn.shopify.com/s/files/1/0433/8581/5190/files/falizo.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_off00006184.bin
3287ea1142e071e4513d95408197fd1032521d908c5169ed2713d87e688f004a
pdf-font-stream PDF embedded font (sfnt) at offset 0x6184 6348 bytes
font_01_sfnt_off000075d9.bin
434f8a760a0d10b72d65694e0326528145c4c03d9440ba30e1bd02632e6d4e9e
pdf-font-stream PDF embedded font (sfnt) at offset 0x75D9 12256 bytes