Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ed132a8e08bf345…

MALICIOUS

PDF

39.2 KB Created: 2020-08-13 03:00:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cf64845626ea162561be3a327a0fab56 SHA-1: 06944fe82409c80e2f2de37ade73b33ee50c26a1 SHA-256: 6ed132a8e08bf3450c3222f8af801a180738be84c171efecbe608a7d4b321dea
202 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, many of which point to redirector infrastructure designed to obscure the final malicious destination. The primary redirector URL, 'https://ttraff.cc/wb?keyword=applied%20hydraulics%20and%20pneumatics%20book%20pdf', is flagged as malicious. This indicates a phishing attempt, likely to trick users into downloading malware or visiting a compromised site under the guise of a free book download.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.cc/wb?keyword=applied%20hydraulics%20and%20pneumatics%20book%20pdf In PDF document text
    • http://fejopit.heswallsquash.com/uploads/1/3/0/9/130969536/gedoneditoxadabot.pdfIn PDF document text
    • http://files.maylingmartinez.com/uploads/1/3/0/7/130776327/a00ee0781.pdfIn PDF document text
    • http://files.pdixonphotography.com/uploads/1/3/1/4/131453982/2909883.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/1/0430/5059/8562/files/bevuzizefixosogewudaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9622/0572/files/wezese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9806/9410/files/atls_9th_edition_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1613/4562/files/zoruzaperovuzamobeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2862/6080/files/kijajesuzav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1449/6161/files/java_ee_6_tutorial_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5864/1573/files/tukumuvom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5492/3925/files/zifuguxezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4287/3249/files/migibagituviredire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7173/1880/files/gilokolawiweza.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 4

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_off0000590f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x590F 5688 bytes
SHA-256: 3b80df157d2097a6832476f5cb8c3756d2ee0986962309227a0d14910325cc2a
font_01_sfnt_off00006c2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C2F 10512 bytes
SHA-256: 5675c1121c03b5c154d45de7288c9bb51ff854f1f1f6e746671d740f9400233f

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