Malicious PDF — malware analysis report

Static analysis result for SHA-256 5584b28e3b6cab7b…

MALICIOUS

PDF

43.6 KB Created: 2020-07-24 23:07:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9884b067a8b0effecbef888054bdcf44 SHA-1: 90958effd086d05a31cb5a00514ddf73ac993dfa SHA-256: 5584b28e3b6cab7be4c3a13e1b2df4cae7f33e6898e23e8b033b38d662c880cc
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 hosted on Shopify. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf and includes a keyword related to dictionaries, which serves as a lure. The primary attack vector appears to be directing users to malicious infrastructure via the 'ttraff.com' URL.

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=english+to+spanish+dictionary+with+pronunciation+pdf In PDF document text
    • http://files.sisterspiritwomensharingspirituality.org/uploads/1/3/2/8/132815154/58853863.pdfIn PDF document text
    • http://files.boonieandco.com.au/uploads/1/3/1/4/131409017/bosuxuzoxe_zafezosuse_rulezowoduta.pdfIn PDF document text
    • http://files.lakelurelabradoodles.com/uploads/1/3/1/3/131378999/fexod_fuvemiselabaze.pdfIn PDF document text
    • http://files.flatspokecycles.com/uploads/1/3/1/4/131408529/6549756.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/1/0430/3293/6605/files/10258671201.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7954/1671/files/73327209757.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3494/3388/files/tuxosofokaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85450973079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1302/1607/files/mivofagudagiparulaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3485/4051/files/kapulaloje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/baputomir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2559/4530/files/1286890224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3799/0813/files/31307520022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2485/0842/files/vokevetupek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3714/7811/files/zukidakaworixixawevas.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E02 5332 bytes
SHA-256: e9521524a87ff30583cb0295e9f732aad608b6f23c585791a195944bf5a8a0df
font_01_sfnt_off00008028.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8028 9680 bytes
SHA-256: 0f8a4ed32cf290a7368e7126713b79cbbd6818f4f55d351e1466fb405ce792cf

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