Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a93ba789a35cb7b…

MALICIOUS

PDF

40.8 KB Created: 2020-08-30 13:28:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d4941e246141d0251cc92f5cdb835866 SHA-1: 9eea4c214df6c609259e6828a4acf6afd3431b6f SHA-256: 6a93ba789a35cb7b80413576cc6f769472b397a1cc6882a63a731e5e20d400bd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links and a document body that attempts to disguise itself as a 'solve proportion worksheet'. It directs users to a malicious redirector URL, ttraff.com, which is flagged as malicious. The presence of numerous external PDF links, many pointing to Shopify, suggests a link farm or SEO manipulation tactic to obscure the malicious intent. The ML classifier also strongly indicated maliciousness.

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/wix?keyword=solve+proportion+worksheet In 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/1/0434/7900/7384/files/gamades.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/3139/1396/files/atresia_duodenal_congenita.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2479/3245/files/car_wash_business_plan_philippines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2249/0528/files/santoral_catolico_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5663/5816/files/22094642129.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_4a1294d9ed1a4a2b9e138cccafa0e55e.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_50d717412911452c9e850a5bb5fc6dc9.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/c7ef1a_de755a7b4e6e49b29826ade85c126bfc.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e3ff21_97fac7fe3b9c4f698a4d8ea6745238af.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_c7a857dc0c504b479524203800e8996a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/d3758e_361a73ed878b4fc6b878782989d3a52b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/7f46b5_34076d7a67054e31acaf17a2ce4edd89.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_38d88a5e05be4ae1b94398722fe55f31.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/856cea_1df2a1b8a7414b209183a51489e94128.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_2df26a97b4c64eae930d8ae76ac9163c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5783/0298/files/bangla_film_gana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0767/1453/files/wipomikoturirun.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
🗂 Part of campaign: joyfulalwaysdesigns.com 5 samples

Related samples 1

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

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Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000620f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x620F 5016 bytes
SHA-256: 8ff035260be12ae83551f5a0919446f1411146547d52a8b0b5b75d91a7b92ed0
font_01_sfnt_off00007333.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7333 10360 bytes
SHA-256: c9d17e47188abc2cded922c48d13c04fb5dab0e40b94e8cf1e807646682c488b

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