Malicious PDF — malware analysis report

Static analysis result for SHA-256 06a932bb59d504ff…

MALICIOUS

PDF

40.1 KB Created: 2020-10-07 22:52:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: b425625b4dc2579a56d4be0d0f156e02 SHA-1: 69b7a3e6c00b498d652a00e14007a092e9897f0d SHA-256: 06a932bb59d504ff3bce214242701dbc5a64d30452f3d8ff75b80ee6044741c8
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://cctraff.ru/strik?keyword=serta+office+chair+user+manual In PDF document text
    • http://files.anschutznorthamerica.com/uploads/1/3/0/7/130775921/tewupiwexaleloz-tanipexomadisup.pdfIn PDF document text
    • http://durip.fingers4hiretranscription.com/uploads/1/3/1/4/131437130/1899151.pdfIn PDF document text
    • http://pajakiwok.abaofwisconsin.org/uploads/1/3/1/3/131398367/wogirez.pdfIn PDF document text
    • http://files.nlcs-promisetown.com/uploads/1/3/0/7/130775506/7c4c22f3c6124.pdfIn PDF document text
    • https://site-1042671.mozfiles.com/files/1042671/56635651449.pdfIn PDF document text
    • https://site-1037111.mozfiles.com/files/1037111/48312575496.pdfIn PDF document text
    • https://site-1037024.mozfiles.com/files/1037024/97500668171.pdfIn PDF document text
    • https://site-1039878.mozfiles.com/files/1039878/55717872822.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/1/0463/0813/0981/files/lora_leigh_breeds_goodreads.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0365/7887/files/narozizupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/9519/8363/files/poseruwug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0485/3924/files/razer_mamba_tournament_edition_weight.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/828ce05a-fd89-40ba-b868-3f5ef6633ca9/piluwineruza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/038115a2-61dc-4dfb-9e47-fa65998d38a3/barofinametev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1a29099-5f68-416c-b5e9-c210895b484b/lirupufakosares.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52313a1a-ec55-470b-84b1-64b5afc42ef9/sosov.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_off00005f74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F74 5224 bytes
SHA-256: 7a9dce72043986b376916dc7aa323c4a2e492fb54a94aaf1d7c4d865413f453f
font_01_sfnt_off0000710f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x710F 10152 bytes
SHA-256: 5de94eea5b5b9b4eac103ad791e11ca24fcb7289b0e655c5fe2897517d7e977c

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