Malicious PDF — malware analysis report

Static analysis result for SHA-256 aece0e06603e7d4e…

MALICIOUS

PDF

44.4 KB Created: 2020-10-02 05:07:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 2d6dfcd249de71ec6da1580d000a99c7 SHA-1: 66920cd32a8be5e350d45bccb365729a198d2836 SHA-256: aece0e06603e7d4e84043d118befb020b2db15f0d7c86e38bf673524ea8a0b2c
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=kiss+the+rain+guitar+sheet+music+pdf In PDF document text
    • https://site-1036830.mozfiles.com/files/1036830/nonopisivowawis.pdfIn PDF document text
    • https://site-1036696.mozfiles.com/files/1036696/56441061693.pdfIn PDF document text
    • https://site-1037906.mozfiles.com/files/1037906/9371750155.pdfIn PDF document text
    • http://riziga.lovelocalnashville.com/uploads/1/3/0/9/130969018/3365685.pdfIn PDF document text
    • http://files.communitylifecompetence.org/uploads/1/3/0/8/130874489/3366850.pdfIn PDF document text
    • http://files.karinas-boutique.com/uploads/1/3/2/6/132682204/norovekivedaji.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/1/0431/6237/0210/files/contabilidad_de_costos_que_es.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2529/9606/files/89001343037.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/8034/7548/files/biomedical_scientist_salary_in_texas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/7643/9198/files/persona_3_tv_tropes_fanfic_recs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6620/3029/files/pirate_kings_mod_apk_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7503/4524/files/lego_batman_beyond_gotham_apk_1.10.4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9902/1717/files/deromofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9782/6207/files/14061149655.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/0562/6536/files/49308589581.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_off00006fd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD7 5508 bytes
SHA-256: d726b45f931c848d402693a1273f5d5979236a593e6599d9fb411279f459ef0a
font_01_sfnt_off0000826e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x826E 10060 bytes
SHA-256: 477d062dfc111d2e8e15cd7ec41569c3223891908ea77f0b8ccd46986af4df39

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