Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6deaa0fd96a6850…

MALICIOUS

PDF

46.0 KB Created: 2020-08-10 00:48:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9020cdeb73dcbbb7b457f587057bd82a SHA-1: bf9e68ba55c7a942b066091a72a2a17922e92b81 SHA-256: d6deaa0fd96a6850ae1850ddf1dc0b34a596026a38d3b6a315a199627d0fbe26
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.com/pify?keyword=anthropological+foundation+of+physical+education+pdf'. Another critical heuristic identified a PDF link farm, with the first URL being 'https://cdn.shopify.com/s/files/1/0431/6394/3067/files/58482733653.pdf'. The document body, though heavily corrupted, contains text related to physical education and the wkhtmltopdf application, suggesting a lure document.

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.com/pify?keyword=anthropological+foundation+of+physical+education+pdf
    • http://files.smallflute.com/uploads/1/3/2/8/132814030/vupepanodexivaz_xovutixos_xesozaj.pdf
    • http://fomimuxif.rachelburn.com/uploads/1/3/2/6/132682883/9525183.pdf
    • http://files.majormedicalproducts.com/uploads/1/3/1/8/131856995/wejifopaji.pdf
    • http://files.hgcoffeeshop.com/uploads/1/3/0/7/130775712/85376d12599c.pdf
    • http://xetise.sarexplorer.com/uploads/1/3/2/3/132303382/nubotewot_runomu_bizoxu_jonule.pdf
    • https://cdn.shopify.com/s/files/1/0431/6394/3067/files/58482733653.pdf
    • https://cdn.shopify.com/s/files/1/0430/3978/5111/files/simizej.pdf
    • https://cdn.shopify.com/s/files/1/0429/0543/6326/files/jemajijofevepofunanegajij.pdf
    • https://cdn.shopify.com/s/files/1/0433/9915/1768/files/19655268340.pdf
    • https://cdn.shopify.com/s/files/1/0432/0182/2875/files/telecharger_atlas_anatomie_humaine.pdf
    • https://cdn.shopify.com/s/files/1/0432/0601/7186/files/xofonix.pdf
    • https://cdn.shopify.com/s/files/1/0431/2681/6932/files/29121673151.pdf
    • https://cdn.shopify.com/s/files/1/0432/0909/7376/files/67860450978.pdf
    • https://cdn.shopify.com/s/files/1/0435/5378/3957/files/wufimupuminogimafi.pdf
    • https://cdn.shopify.com/s/files/1/0438/5092/4182/files/bond_university_application_form.pdf
    • https://cdn.shopify.com/s/files/1/0429/7146/3831/files/93416195115.pdf
    • https://cdn.shopify.com/s/files/1/0438/5252/9829/files/99156511142.pdf
    • https://cdn.shopify.com/s/files/1/0433/1254/5950/files/meningoencephalitis_tuberculosis.pdf
    • https://cdn.shopify.com/s/files/1/0438/0708/0610/files/niwozokogikaxukifakuto.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_off00007319.bin
1b445a38b4e8d4315df6bf8f8c4cf8e91932b5213b434c9c2e6e1cad94b00a6b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7319 5508 bytes
font_01_sfnt_off000085de.bin
63f6048f6e480ef10f2cf39e497f2a9b1dd15351867e21e2ac18d139a6cfff0a
pdf-font-stream PDF embedded font (sfnt) at offset 0x85DE 10712 bytes