Malicious PDF — malware analysis report

Static analysis result for SHA-256 0711b73a3fa45ae2…

MALICIOUS

PDF

41.9 KB Created: 2020-09-14 11:40:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 493e73816671bf402024fe2935e13806 SHA-1: aad7f1e5c16eb2f390bc5cbc1acf576747384832 SHA-256: 0711b73a3fa45ae2c334669e1fd7e6a1809ab02adb33beacb3fa1b88cc063eab
194 Risk Score

Malware Insights

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

The PDF contains embedded links that point to known malicious redirector infrastructure, specifically `https://ttraff.club/wix?keyword=wii+operations+manual+disk+cannot+be+read`. The document body, though obfuscated, also contains this URL and numerous other PDF links, suggesting a link farm designed to trick users into downloading further malicious content or visiting phishing sites. The ML classifier 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.club/wix?keyword=wii+operations+manual+disk+cannot+be+read In PDF document text
    • http://zugagip.cambridgenurseryschool.org/uploads/1/3/0/7/130776769/wusafew.pdfIn PDF document text
    • http://files.franciscreekranch.com/uploads/1/3/0/7/130775432/loritazix_wabebesirababo.pdfIn PDF document text
    • http://files.kyler-leroux-coaching-portfolio.com/uploads/1/3/1/4/131482828/bokivimero.pdfIn PDF document text
    • http://files.morlinaevents.com/uploads/1/3/0/8/130873918/9780613.pdfIn PDF document text
    • http://buxitukom.cocokaboo.com/uploads/1/3/1/6/131637240/didozu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/d55797_6ba041419ea44ea38ca0da1b65feb74a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/5f4192_f0689560609d4398b205b3bee6a35b69.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/aa14a9_c44a84aa157c46b988ec4b44a67eaca6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5638/1597/files/jspdf_autotable_add_footer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8421/0583/files/44163799703.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6405/7238/files/jolidegerivejedazutonam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4836/8288/files/70390076760.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6875/0998/files/28119997700.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/9ef1ea_b2a2322b828c493c9b8596aef577e395.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/debdc1_d902089abd1c47c98bb1756adc24b86c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/35c6e2_ee49cec454bd4bbf98d991c10149d5b5.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/6fd45c_aa3a0300aa9543f7bb068e401b6f95e5.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 5

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_off0000653b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x653B 5436 bytes
SHA-256: eb98d543e2d29568b8b0a70f027fe5714fb9aaf0798e8229cc837e9347cc31ae
font_01_sfnt_off000077a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77A7 10148 bytes
SHA-256: 251f2af4b350738fc2451d337bbbb89d271792702fc045add36001d5a13221b9

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