Malicious PDF — malware analysis report

Static analysis result for SHA-256 26746d43d1364a3a…

MALICIOUS

PDF

57.6 KB Created: 2020-08-19 09:40:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 728504c0462e1de5af1b4393fa1c8e03 SHA-1: 0098c66bf975c64bd13829d8037f065fcd3e6f11 SHA-256: 26746d43d1364a3a3c6cee8062b56c7732513e6eb2321485ced3adbb248b52b7
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, a technique often used to inflate search engine rankings or to distribute malicious content. One of the embedded URLs, 'https://ttraff.ru/pify?keyword=blockbuster+video+song+hd+free', is flagged as a known malicious redirector. This suggests the document's primary purpose is to lure users to a malicious website through a chain of redirects.

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/pify?keyword=blockbuster+video+song+hd+free
    • http://zutedov.hickmanfootball.com/uploads/1/3/1/4/131438577/dapubitegisaveb.pdf
    • http://files.joelvendittiarts.com/uploads/1/3/1/8/131857213/kuzoziluvaweliliw.pdf
    • http://files.knaoknits.co.uk/uploads/1/3/2/6/132695734/risoduzusud.pdf
    • http://files.forresterflooring.net/uploads/1/3/1/4/131453221/3127876.pdf
    • https://cdn.shopify.com/s/files/1/0431/3494/3388/files/famanodewitivi.pdf
    • https://cdn.shopify.com/s/files/1/0435/1534/7103/files/glistering_melon_slice.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fenajowogotuxukat.pdf
    • https://cdn.shopify.com/s/files/1/0429/2637/5071/files/dapulinijivebo.pdf
    • https://cdn.shopify.com/s/files/1/0447/4395/0490/files/bsf_constable_tradesman_admit_card.pdf
    • https://cdn.shopify.com/s/files/1/0433/0160/1444/files/92019758246.pdf
    • https://cdn.shopify.com/s/files/1/0431/2452/3169/files/hitchhiker_s_guide_to_the_galaxy_series.pdf
    • https://cdn.shopify.com/s/files/1/0440/4648/3606/files/dewoxujusixes.pdf
    • https://cdn.shopify.com/s/files/1/0430/0252/7895/files/pm_awas_yojana_application_form.pdf
    • https://cdn.shopify.com/s/files/1/0430/6544/2455/files/zivuv.pdf
    • https://cdn.shopify.com/s/files/1/0428/0687/0183/files/45738402622.pdf
    • https://cdn.shopify.com/s/files/1/0430/6485/2634/files/nosumulanorudife.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_off0000a22f.bin
aa5775b94a4884e1fdc1ce5857242d8f7807080d1cfc2e61fb460e1cdd4af8cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA22F 5384 bytes
font_01_sfnt_off0000b477.bin
320d16d6685704e324489786a83a773271fe8f33da86b0637da342b330cdeaa8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB477 10824 bytes

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