Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7f61038b1c8a4bb…

MALICIOUS

PDF

52.6 KB Created: 2020-08-02 04:56:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c7c6d4d04196bb7530ff0ffc750926c6 SHA-1: 89e12610eb15216a73211d395fe3572773975f50 SHA-256: c7f61038b1c8a4bb51c1ed72c0c5094e735ff7c584dd2d3a1abc9b0ba0d9c24e
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external links, suggesting an SEO poisoning or phishing attempt. The ML classifier also strongly indicated maliciousness. The document body contains a URL that leads to a redirector, which in turn links to a PDF hosted on Shopify. The presence of numerous links, including those to potentially malicious redirectors, indicates a campaign to drive traffic to external resources.

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.ru/pify?keyword=minecraft+shield+enchantments In PDF document text
    • http://files.megastone100.com/uploads/1/3/1/3/131398253/kalunezodinive.pdfIn PDF document text
    • http://files.mikehateseverything.net/uploads/1/3/1/8/131871633/ferofuvo.pdfIn PDF document text
    • http://files.blomquistscience.com/uploads/1/3/1/3/131380001/76f33fd12855.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/1/0440/4881/0149/files/28349067756.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1567/5815/files/renewing_drivers_license_alabama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0164/2135/files/maine_state_abbreviation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3059/3192/files/mercury_90hp_2_stroke_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5180/9957/files/39776224507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9870/9918/files/schroeder_thermal_physics_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9258/2293/files/56619226405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1311/8872/files/61871666411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/97428896976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8577/4502/files/72501489274.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6718/7108/files/58795599889.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9915/9718/files/sigidozavus.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_off00008ef9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EF9 5264 bytes
SHA-256: 4e6a4a7b3e051c0b56295f7dc20d2dfa7ed61e25db281bd2a5e5b162d8845f12
font_01_sfnt_off0000a0c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0C0 10376 bytes
SHA-256: 8f69a7379800fce968014d92a60bdffb0d92c1c35720565de73c4984c35846a3

Open this report in the interactive analyzer, or submit your own file for analysis.