Malicious PDF — malware analysis report

Static analysis result for SHA-256 93ec5a662e001cfd…

MALICIOUS

PDF

44.3 KB Created: 2020-10-16 08:15:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 45fbebffb0f8dadd22b40ac44777dc27 SHA-1: 54b70ed653c52b316578e675371a65a745883378 SHA-256: 93ec5a662e001cfd2f29e25ce3606a5234390fcf6a2fc662607f0d0153b52416
194 Risk Score

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://ggtraff.ru/123?keyword=neck+designs+book+pdf+free+download In PDF document text
    • https://vuzevarezevarot.weebly.com/uploads/1/3/0/7/130740461/pisimogateku.pdfIn PDF document text
    • https://rabugotekinevod.weebly.com/uploads/1/3/1/8/131871666/698664331d800.pdfIn PDF document text
    • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/7373486.pdfIn PDF document text
    • https://fagisidide.weebly.com/uploads/1/3/2/6/132682833/c756a.pdfIn PDF document text
    • https://pumowurunumig.weebly.com/uploads/1/3/2/7/132740285/ad9d4.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/3532345.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368772/normal_5f889f925c0de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367959/normal_5f875f1dc5258.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/1/0495/6238/6584/files/electrical_distribution_system_by_sivanagaraju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2117/1879/files/42007806677.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5025/3992/files/apoorva_raagangal_serial_actress_real_name.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1805/8901/files/blackfathom_deeps_quests_tbc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/6698/1059/files/adenovirus_canino_tipo_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/7264/2972/files/how_is_turbidity_measured.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3636/0351/files/sutefes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5398/9534/files/extradition_ap_gov.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/edd4b490-f520-4f69-a2a7-cb85cc17949a/loroximepijotaka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a15e8d30-1122-477b-bb03-492d669fce3b/77233298261.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9dd402b6-dd1e-454e-81c4-54b35104d12a/tuvosusibamipesube.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00109cdb-4308-4162-8e77-bfdb5745d580/68868878464.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_off00006e38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E38 5588 bytes
SHA-256: 185b15b08da7103694612c09e921788b57204906217e59c76a0d5f861dd6fb43
font_01_sfnt_off0000815d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x815D 10060 bytes
SHA-256: 17aa10fceee039dbbfe8f9ad269dd69e6745ce7085917dd55e9457ba63bef4fc

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