Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed84833ff330a7b7…

MALICIOUS

PDF

40.8 KB Created: 2020-08-10 02:14:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9ee4591ec473b982ad1515cee5c3f207 SHA-1: 9a6d85133ac6156b6011727476fa74056a785623 SHA-256: ed84833ff330a7b7e3c3d6872e409e327c6f14e954aca607101f424f3e878948
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is https://ttraff.cc/pify?keyword=ambush+paragraph+book+pdf. The document body, though heavily obfuscated, contains references to this URL and other PDF files hosted on Shopify, suggesting a link farm or redirection scheme. 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.cc/pify?keyword=ambush+paragraph+book+pdf In PDF document text
    • http://jadibejuz.dallingranch.com/uploads/1/3/1/0/131069934/posedudatig_fononur_totitibudo_danujik.pdfIn PDF document text
    • http://files.mollymillerstories.com/uploads/1/3/2/7/132710776/gusolubojivad.pdfIn PDF document text
    • http://files.editiononegallery.com/uploads/1/3/2/7/132741029/e6e467d0fb7.pdfIn PDF document text
    • http://files.trianglewaterpartnership.org/uploads/1/3/2/6/132696263/1902638.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/1/0430/4899/2930/files/34734920016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7215/0947/files/git_branch_name_rules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1357/0709/files/zuxedorujixuwufekuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0392/8991/files/shaun_t_workout.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5496/4637/files/87220145578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7495/3120/files/kawurivugivegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0462/4021/files/ponedomiveza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6217/3602/files/wexonewabefiwine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9536/7585/files/bewobiratifupunubasusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5337/4874/files/38794602088.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 7

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_off00005fda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FDA 5616 bytes
SHA-256: 3dee75ab027f3bf6b2ed1980aeceef6d5b38b1f0815d6b4529af6badf1c1e7f0
font_01_sfnt_off000072c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72C2 10572 bytes
SHA-256: e9ab892274c15540233636e161ba702adde336a33ff085fe5b6479dabfa8d2cb

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