Malicious PDF — malware analysis report

Static analysis result for SHA-256 07e2604590f0ad43…

MALICIOUS

PDF

43.1 KB Created: 2020-10-05 09:16:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: e1b49cce2e9496a7c71781db089b705e SHA-1: 3a1cbe59ff72939713c00166513ccc254c89d07e SHA-256: 07e2604590f0ad4360a7fabe937d1274b33e7010b6be5b07d572a94292461877
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=watch+twilight+online+free In PDF document text
    • http://files.wilsonbaseballcamp.com/uploads/1/3/1/4/131437865/1701796.pdfIn PDF document text
    • http://files.balloontwistersdcvamd.com/uploads/1/3/0/9/130969375/gipagazovupibiz_tolokaduwimola.pdfIn PDF document text
    • http://files.goldkeel.com/uploads/1/3/2/6/132681910/rikurunisex.pdfIn PDF document text
    • http://tereruv.mascotsworld.com/uploads/1/3/0/9/130969352/72477ab699f.pdfIn PDF document text
    • http://files.taupakikarate.co.nz/uploads/1/3/1/3/131384602/saxixodofovapu.pdfIn PDF document text
    • http://files.flagstaffhypnotherapy.com/uploads/1/3/1/4/131437889/d99c817a7f6c3f.pdfIn PDF document text
    • http://dofuzis.wandalaclaire.ca/uploads/1/3/1/4/131407514/jukuxo.pdfIn PDF document text
    • http://files.crockettyouthsoccer.org/uploads/1/3/0/7/130775640/1385138.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/1/0429/4639/6326/files/dell_inspiron_7559_charger.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/5262/1728/files/42516369014.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5769/2315/files/ingenuity_trio_3-in-1_high_chair_moreland.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/0303/9903/files/touchstone_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/4116/5990/files/77799201003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/3133/5590/files/9443043028.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2247/5687/files/zadegagidomemibawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/8597/4689/files/95484027380.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006942.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6942 5072 bytes
SHA-256: f03b9056c69626ea4ccf7cc5cffefce464cbb072244681c01d0ee0b7c61c159b
font_01_sfnt_off00007a98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A98 10924 bytes
SHA-256: 293b6e96f9729f4fcfd7f6b4f1a25f935f003ef29baf9e69326d039d89a10d2e

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