Malicious PDF — malware analysis report

Static analysis result for SHA-256 b460a94056df7b1e…

MALICIOUS

PDF

44.1 KB Created: 2020-07-28 20:41:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e8ccbf72ae4493d551e3a4cba8333546 SHA-1: 4dae9a4e0f992702dc7c4a9423c6e41ee034e987 SHA-256: b460a94056df7b1eccf532cf7969dd34c2ecc0d9d052ffc3d7074a42b506c095
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link to a redirector URL (ttraff.cc) which is flagged as malicious. Additionally, it exhibits characteristics of a link farm, with numerous embedded links to external PDFs, many hosted on Shopify. The document body, though heavily obfuscated, appears to be a lure related to 'cause and effect linking words exercises'. The primary malicious activity observed is the redirection to a potentially harmful site.

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.cc/pify?keyword=cause+and+effect+linking+words+exercises+pdf In PDF document text
    • http://files.basstabernaclecme.com/uploads/1/3/1/3/131380158/vunigutenenemaj_juvuwazesenupes_fenulaxirupida_lexavem.pdfIn PDF document text
    • http://files.modified-mama.com/uploads/1/3/0/7/130775953/5b5c84338.pdfIn PDF document text
    • http://files.francescaeldridgehealth.com/uploads/1/3/0/7/130776562/fb3a3b7bc25ced6.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/1/0432/6971/8182/files/sanadudofemuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6938/2557/files/3777197394.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8049/8841/files/nojupefexowirobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3530/3831/files/42088521368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4539/6386/files/rinagup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5863/4658/files/34454909786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7140/6237/files/wenagukeluwixixefidotik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9348/9832/files/pirefafegov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3056/9382/files/66640187424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7353/5138/files/82985777853.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7328/7830/files/50199483266.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7643/5621/files/94972792026.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_off00006df6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF6 5452 bytes
SHA-256: ac29e40f60ff34f1eeca4bb5e09b9732f5d924c14b067d55b6a9393bde72690e
font_01_sfnt_off000080aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80AA 10072 bytes
SHA-256: dfb09c78ecd067022eb838c4500650647eec33d79c77978288e6ef8a4be48456

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