Malicious PDF — malware analysis report

Static analysis result for SHA-256 d557c6ca16e3d130…

MALICIOUS

PDF

41.2 KB Created: 2020-08-17 06:38:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ff36c2fa4318140651b04da83d0da3c6 SHA-1: 958a4b0fa8c912c04a4fd20cbdb9403f4e0e1392 SHA-256: d557c6ca16e3d130ddea3689c48b0d899bd78208104afed0ec24b8c41cf53570
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 pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many of which are hosted on Shopify but point to potentially malicious PDF files. The document body, though heavily obfuscated, contains the same malicious URL. The primary attack pattern involves luring the user to a malicious site via a deceptive link.

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.com/pify?keyword=study+bible+macarthur+pdf In PDF document text
    • http://files.dalesdesignsonzazzle.com/uploads/1/3/0/7/130738562/f3c5b7d79b.pdfIn PDF document text
    • http://gidana.jessicagoodman.co.uk/uploads/1/3/1/6/131606758/pitobogibik.pdfIn PDF document text
    • http://files.newlifetempleretreats.org/uploads/1/3/2/7/132740296/544ea31e.pdfIn PDF document text
    • http://files.seanhuttonmusic.com/uploads/1/3/1/4/131453255/soxitajudonut.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6772/7269/files/business_information_systems_bocij_5th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6284/5859/files/38645063706.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5144/9504/files/download_bachon_ki_kahaniyan_in_urdu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4361/8965/files/xokaxibitulepisen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5322/5883/files/banogatatafive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0841/6168/files/fevovobujunefedi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0649/8728/files/fuvudanikagubagujarowux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1087/3750/files/chattanooga_choo_choo_piano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8561/0654/files/zukirodagotivasabawiwoxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/telisupuf.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 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000561a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x561A 5228 bytes
SHA-256: b65b6cca89e1bb323d94bec965a8002f41f3cc61e7883bd9713096d2d30e9bb7
font_01_sfnt_off000067de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67DE 9824 bytes
SHA-256: 37dd5fa4ef2c1aab32dbef00d3b727299dd3ba03b27356f6c7f4bea2b36b7ac7
font_02_sfnt_off00008998.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8998 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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