Malicious PDF — malware analysis report

Static analysis result for SHA-256 801006585e511681…

MALICIOUS

PDF

34.6 KB Created: 2020-10-28 11:26:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 87c4d1d78f7454f59e406ebf66d55fef SHA-1: c52c8e0cb8517c6fe4535b6f3b8ed799b032b61d SHA-256: 801006585e51168174cfe17e2a163724676badb885d96ed9234050bbeafcf047
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://ttraff.me/pify?keyword=fluval+fish+tank+vacuum In PDF document text
    • https://cdn-cms.f-static.net/uploads/4408853/normal_5f94c156b395b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387240/normal_5f8fe751c3fba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417992/normal_5f96c990adc7d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387408/normal_5f8f328148d99.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371272/normal_5f8983a29a326.pdfIn PDF document text
    • https://vodexekuteb.weebly.com/uploads/1/3/0/7/130776001/4631034.pdfIn PDF document text
    • https://pavowojavujide.weebly.com/uploads/1/3/1/3/131398322/9015792.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000049e7.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000049e7.bin)
    • https://s3.amazonaws.com/xanebavifamopez/xudiras.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/kinuwekezitifodap.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/dibokopupolasab.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/26080228991.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f5b2963-0bdf-4f0a-8658-8172c73caa58/34475757566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0494/9370/4863/files/mammal_study_merit_badge_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/1535/4543/files/bobo_live_88_tv_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/7175/8232/files/avee_player_pro_apk_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1829/6228/files/55943202668.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 extracted file (font_00_sfnt_off000049e7.bin)

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_off000049e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49E7 5104 bytes
SHA-256: e58092e737e72e60fc12a35baeee11ea5b9d2b60b698edb9f719922681c1aeaf
font_01_sfnt_off00005b1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B1D 10472 bytes
SHA-256: 9731b34d5f30fee3742630f4ce94100fcbba3663ed27a95fd436c5c27c9f30ad

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