Malicious PDF — malware analysis report

Static analysis result for SHA-256 364ed55bf63250bf…

MALICIOUS

PDF

48.0 KB Created: 2020-08-11 01:26:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 461a948a308ff2e9759209c1734787a0 SHA-1: 544937922cfa56ccf7fbfaf146aeaf531efcc3fe SHA-256: 364ed55bf63250bf5c73b1342a6f30c91968c2809c001fe7c8bdf74aabd7dc48
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, disguised as a document about agricultural innovation. It also features a large number of links to other PDFs hosted on Shopify, likely as part of a link farm to improve search engine ranking for malicious content. The primary malicious URL is https://ttraff.com/pify?keyword=technological+innovation+in+agriculture+pdf.

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=technological+innovation+in+agriculture+pdf
    • http://files.baldmanandhumans.com/uploads/1/3/1/3/131398323/2623336.pdf
    • http://files.nicolaheatharts.com/uploads/1/3/1/8/131856173/3665497.pdf
    • http://files.fyrishgundogs.com/uploads/1/3/1/6/131637325/fekepopipimagemiz.pdf
    • http://files.madbaglady.com/uploads/1/3/2/6/132695732/xuwaxat.pdf
    • https://cdn.shopify.com/s/files/1/0429/5173/7498/files/bedford_reader_chapter_2.pdf
    • https://cdn.shopify.com/s/files/1/0444/0319/6070/files/clinical_pathophysiology_made_ridiculously_simple.pdf
    • https://cdn.shopify.com/s/files/1/0430/8933/0330/files/calculus_early_transcendentals_6th_edition_larson.pdf
    • https://cdn.shopify.com/s/files/1/0430/8992/0154/files/55668733002.pdf
    • https://cdn.shopify.com/s/files/1/0435/9438/3522/files/tegoputabiguvimumipisozos.pdf
    • https://cdn.shopify.com/s/files/1/0433/0664/7717/files/nasizebap.pdf
    • https://cdn.shopify.com/s/files/1/0436/0673/7053/files/ahmadou_kourouma_les_soleils_des_indpendances.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/3183641906.pdf
    • https://cdn.shopify.com/s/files/1/0430/1714/2433/files/98263494095.pdf
    • https://cdn.shopify.com/s/files/1/0434/7848/3096/files/vuwigijagubanafen.pdf
    • https://cdn.shopify.com/s/files/1/0447/0204/0217/files/34012127542.pdf
    • https://cdn.shopify.com/s/files/1/0432/7912/2587/files/60848114835.pdf
    • https://cdn.shopify.com/s/files/1/0435/0207/6070/files/lexifuwisasoven.pdf
    • https://cdn.shopify.com/s/files/1/0432/2318/7616/files/sodidiviz.pdf
    • https://cdn.shopify.com/s/files/1/0432/8439/8236/files/ubuntu_ipsec_vpn.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/
    • https://cdn.shopify.com/s/files/1/0432/2318/7616/files/sodidiviz

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007b0a.bin
fcae6e7ca728f5c9143444d6aca82411967698e3b51f5323cbbc6e7a183edad5
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B0A 5248 bytes
font_01_sfnt_off00008ce0.bin
31e6d974c5d35ae27fed5ba27a9052f8e2eee0a97c161ae567756a72cf3d6208
pdf-font-stream PDF embedded font (sfnt) at offset 0x8CE0 11520 bytes