Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5cfd2992f9e0879…

MALICIOUS

PDF

42.1 KB Created: 2020-08-21 15:50:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 80f54face1f6a95db9266c2dbe75c6b1 SHA-1: c478744cae618e6c8d9a158c7d95d3ef1780bffd SHA-256: e5cfd2992f9e0879de197f574ab99550121b19c0006a4eec355758a6031512f9
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains this URL and appears to be a lure related to 'assistive devices program mobility manual'. The PDF also exhibits characteristics of a link farm, embedding numerous external links, many of which are hosted on Shopify but point to potentially malicious content. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=assistive+devices+program+mobility+manual In PDF document text
    • http://files.monicaburtonyoga.com/uploads/1/3/0/8/130874102/puxejizir-deruko-vipelomajas-wasuzetit.pdfIn PDF document text
    • http://nakililof.nicbrijendanconsulting.com/uploads/1/3/0/8/130813988/retidakisiluzol_papizefaluno_nixewiwo.pdfIn PDF document text
    • http://durow.riveflowyoga.com/uploads/1/3/1/4/131454950/buzifusalatapos-zeliwirabejepe-fepemaletotedet-gupozitoxuwep.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7056/3239/files/pathala_bhairavi_old_tamil_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9613/6098/files/42343761309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6141/9927/files/electrician_work_experience_certificate_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3861/2378/files/kobaxujadopaximo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0693/4688/files/nubonafatojojavexuman.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/3137/4493/files/binary_tree_algorithms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nezaneseku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0948/1624/files/duxubivoso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3652/2149/files/76143653114.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0591/0933/files/wasawumalizokapitomubar.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006278.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6278 5684 bytes
SHA-256: 0f7fa008bfe9a3d4b11e4bb5a0456ce3dd58cba0990763c16e419cbf70e9d0da
font_01_sfnt_off000075bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75BC 10636 bytes
SHA-256: 5427e8e14fbac14987284e8ab8f7865329cf5872310bc5ee15804cbc952c53f8

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