Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d30cd09958a2e1a…

MALICIOUS

PDF

43.0 KB Created: 2020-08-11 18:54:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 787b58613af3db4ab096f3f99ba6f2b2 SHA-1: d60f2d0f4133bc3bcd0bfa67b48d24387567fa25 SHA-256: 5d30cd09958a2e1a19c750a0a8f336e724205f0e79145a3fba083ae693e3af27
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to a malicious URL, disguised as a manual download. This is further supported by heuristics indicating a malicious redirector and a link farm, suggesting a phishing or scam attempt. The ML classifier also strongly flagged this PDF as malicious.

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=digital+multimeter+dt830d+manual+pdf In PDF document text
    • http://mekodazum.virtualhrpros.com/uploads/1/3/0/7/130738720/mipojorowonasoles.pdfIn PDF document text
    • http://xenak.electropathi.com/uploads/1/3/2/7/132712323/rutefutizutixeperi.pdfIn PDF document text
    • http://patoxubiw.penelopewylde.com/uploads/1/3/1/4/131406390/dagidaren.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/1/0431/3035/5866/files/17305146540.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0617/3077/files/diferencia_entre_amortizacion_y_depreciacion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zijuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6204/2532/files/rorugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ximulomonarosaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/42431409094.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3264/0664/files/nanenoradufun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7019/2802/files/mibutuserudadodudiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7870/4536/files/bill_mollison_permaculture.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7816/3363/files/ramizatuvokobexiviza.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 1

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_off00005b51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B51 5680 bytes
SHA-256: 37e82a7742571499299697556a7ee2925da6f65093af63ee198a8f2a77b35bf7
font_01_sfnt_off00006e9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E9A 15820 bytes
SHA-256: 659945f314a47aefc50c324cd7063c61e1e13722298d6a4ab750d5bcb00523a1

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