Malicious PDF — malware analysis report

Static analysis result for SHA-256 06ddc57418a3cc65…

MALICIOUS

PDF

48.1 KB Created: 2020-10-17 09:36:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25
MD5: eb7c5b651209ccb9f533d7e7678530a5 SHA-1: 830ba79be1e11f15145c1cca0cee7acfd26c3e67 SHA-256: 06ddc57418a3cc65cd8d4a8eba1775a3a4c5c72e0a1162f8bb5d78e4fbd35a6d
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://gettraff.ru/strik?keyword=alien+periodic+table+activity In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368478/normal_5f879e8f5af84.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366402/normal_5f8872aba5464.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366652/normal_5f87269ad4f45.pdfIn PDF document text
    • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/zuvekazabuz-topofelo-gupolekodojavo-ponabiloxe.pdfIn PDF document text
    • https://sibakixode.weebly.com/uploads/1/3/2/8/132814768/ee9fec6a8fe.pdfIn PDF document text
    • https://tekegalesi.weebly.com/uploads/1/3/0/7/130740489/0b3f32.pdfIn PDF document text
    • https://megadezatesaram.weebly.com/uploads/1/3/0/7/130776649/jidimut.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365601/normal_5f89aca6e97de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366031/normal_5f8715288cf99.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365653/normal_5f87058fb05d1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367283/normal_5f8a7fb8628bc.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/1/0432/9016/5403/files/razor_go_kart_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/5759/7595/files/fekesubarodavelaki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/0309/5457/files/22113114953.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f9c1ae9-98c2-4454-ac95-e102bd438976/24252449644.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe070516-92a9-4a75-abb9-43182591bfe7/jovagufevuzakuvikagorokop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe66f307-0c9a-4705-85a0-15c649717308/silkroad_rogue_cleric_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1048ac4b-24f1-4f54-b44e-d3d97568de29/rajaviku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/7990/8504/files/53571877976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/9893/8778/files/najexosumorixoxafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1825/5516/files/61889023554.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/1983/1960/files/add_objective_c_bridging_header_manually.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/8646/2106/files/75381924339.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_off00007e3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E3A 5180 bytes
SHA-256: cbe4bc3fa91b427bc6b974d6e3a0b0ad1e1a7365d1b4804aa46906a3fb1b60a7
font_01_sfnt_off00008fe1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FE1 10060 bytes
SHA-256: 07fc775cd6d1a5eb50571449fb9edc47d9f69b618964a512d3716e5a83305e98

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