Malicious PDF — malware analysis report

Static analysis result for SHA-256 e77a20a087f678cf…

MALICIOUS

PDF

41.4 KB Created: 2020-08-21 19:00:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 020e57b832114937f1eec919f946dab8 SHA-1: 0c007036b1d09897d5f6bc1927e31a28c476595f SHA-256: e77a20a087f678cf02b1e3915d7bc5b48e6493558b1542f16c9e5f4bf528eb66
128 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.ru, which is disguised as a download button. This suggests a phishing or social engineering attack aimed at tricking the user into visiting a malicious site. The PDF also hosts a large number of external links, many pointing to Shopify, which is indicative of a link farm used for SEO manipulation or to obscure the final malicious destination.

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.ru/pify?keyword=mp4+movies+bollywood+2018+free
    • http://lapidaral.reachub.org/uploads/1/3/2/7/132740873/wanejirujuremelajoto.pdf
    • https://cdn.shopify.com/s/files/1/0431/0990/8637/files/64861628532.pdf
    • https://cdn.shopify.com/s/files/1/0434/3971/8552/files/vuwudugenojizofufoke.pdf
    • https://cdn.shopify.com/s/files/1/0432/0657/4238/files/3526375847.pdf
    • https://cdn.shopify.com/s/files/1/0431/6643/3429/files/itinerary_template.pdf
    • https://cdn.shopify.com/s/files/1/0453/8872/6440/files/28587278899.pdf
    • https://cdn.shopify.com/s/files/1/0437/4944/1688/files/1431684736.pdf
    • https://cdn.shopify.com/s/files/1/0427/9074/8316/files/perspectiva_caballera_ejercicios_resueltos_3o_eso.pdf
    • https://cdn.shopify.com/s/files/1/0434/7668/0870/files/sifevabunezomawugagekan.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_off00005f35.bin
de306b35275ad22addb4ba4e938adcaf275882160e56ce46d5ea6b84534d73be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F35 5984 bytes
font_01_sfnt_off000073a1.bin
896e740f2a9d72edb57474f757d62fc958062f95e682726fef70f4268c55bf72		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73A1 10992 bytes

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