Malicious PDF — malware analysis report

Static analysis result for SHA-256 d30838fd4ca465b4…

MALICIOUS

PDF

40.7 KB Created: 2020-08-11 21:16:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8bcbb9a26a470f094d833c3dc983c270 SHA-1: 727fe5702bf1a362d20902ca280e7b8c50b19c9a SHA-256: d30838fd4ca465b4700d1be901ec1dd2efd09f9519ec7e65301f82c6e6afbbfc
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.com. This suggests a phishing or scam attempt where the user is intended to click through to malicious infrastructure. No scripts were extracted, limiting the analysis of direct payload delivery mechanisms.

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/wb?keyword=electroconvulsive%20therapy%20book%20pdf In PDF document text
    • http://files.clippercurse.com/uploads/1/3/1/8/131872238/25c96.pdfIn PDF document text
    • http://files.petethepermie.com.au/uploads/1/3/2/6/132696030/2ec056070849.pdfIn PDF document text
    • http://files.luluandmischka.com/uploads/1/3/1/4/131453045/pexonameniso.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/1/0431/7921/2959/files/71761616904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8858/0512/files/afterburn_sylvia_day_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3014/3395/files/nokujum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3485/4051/files/raxaviguni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5107/4214/files/kekimaxifovedidal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7309/1222/files/44214913887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2571/0756/files/galugixanodegapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/no_pity_for_a_coward_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8471/7979/files/4121605706.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8059/5094/files/tuxisadosaboribapimul.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 3

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_off000060eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60EB 5564 bytes
SHA-256: aae533964ef795fa582b0c3e46ecb770c525b02979bc20061b57a9b4bf5e59c9
font_01_sfnt_off000073d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73D8 10108 bytes
SHA-256: dff5ea080cbccb30d25b4345e1f938aac818b5c41a970d612106404664cf5488

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