Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd7088ba0a13fc1c…

MALICIOUS

PDF

42.8 KB Created: 2020-08-07 12:48:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 596539727adc95d51a2756cb8fde13e9 SHA-1: b8db1747ff8d01aad037f88dd19aefa7f298eb43 SHA-256: dd7088ba0a13fc1ccc612189016d4cc0fbcb015e4551e690ecddf4bd3f4e6645
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=rna+mediated+epigenetic+regulation+of+gene+expression+pdf. This suggests the document is part of an SEO poisoning or phishing campaign designed to lure users to malicious infrastructure. No scripts were extracted from this sample.

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/pify?keyword=rna+mediated+epigenetic+regulation+of+gene+expression+pdf In PDF document text
    • http://files.1817.co.uk/uploads/1/3/2/6/132681317/e457965e8c4.pdfIn PDF document text
    • http://files.erinlands.com/uploads/1/3/1/4/131455158/4554022.pdfIn PDF document text
    • http://files.tidetoadream.com/uploads/1/3/1/6/131637553/botil_xugafez_jidebi.pdfIn PDF document text
    • http://files.tualatindar.org/uploads/1/3/1/3/131379590/monusixiw_gabon.pdfIn PDF document text
    • http://files.thedinopark.com/uploads/1/3/2/7/132740415/6535022.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/1/0437/9102/4277/files/wigijinuvekaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1778/1927/files/western_snow_plow_trouble_shooting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6650/7942/files/49321169088.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/5419/7910/files/automobile_spare_parts_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5603/7017/files/hierarchical_clustering_algorithm_in_data_mining.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/43561311815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8534/8510/files/canon_powershot_sx520_hs_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/batch_file_if_statement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vunazazaxukatokezidabu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8657/7828/files/14437216228.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1272/6677/files/3245607253.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wonazonuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3733/5464/files/74840521493.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_off000068e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68E0 5548 bytes
SHA-256: fe81e7cd0f6a84816d44d4f601293f4cbac2dc17808768f300f29c0108df217e
font_01_sfnt_off00007bb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BB7 9980 bytes
SHA-256: 264375bce30411bc97046721b3d344b154be84a087dec84f0f47c1d333b29d3c

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