Malicious PDF — malware analysis report

Static analysis result for SHA-256 00045c236c7b6748…

MALICIOUS

PDF

41.4 KB Created: 2020-08-24 20:16:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 81fd010194271d984df8fd89d92a51b3 SHA-1: 7de54df0936298f259eb8aa0685f9a1fc0b8e1dc SHA-256: 00045c236c7b67487983cabbba78c8a43f246dac6616ae073e8d98add64fa88f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link disguised as a 'Brave browser' update, which is a common lure for phishing or malware distribution. The link directs to a known malicious redirector, ttraff.com, and the document itself contains a large number of links to external PDFs, suggesting a link farm or SEO poisoning tactic. No scripts were extracted, but the presence of malicious redirector links and the overall structure strongly indicate a malicious intent.

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.com/pify?keyword=brave+browser+android+4.+0.+4 In PDF document text
    • http://zadorebe.limeandstoves.com/uploads/1/3/1/4/131412290/parorugowa_sivomap_pomokokinir.pdfIn PDF document text
    • http://files.mygirlzen.com/uploads/1/3/1/4/131455722/xosekipijub-wagavoratuwa-wasukotiros-nuvujodugoripu.pdfIn PDF document text
    • http://tanuwi.hinksoncompany.com/uploads/1/3/1/0/131070374/9993cf69113075a.pdfIn PDF document text
    • http://files.tcnighttoshine.com/uploads/1/3/2/6/132695546/wivotusegulo.pdfIn PDF document text
    • http://files.southerntackleworksfl.com/uploads/1/3/1/4/131482991/5042538.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000064dc.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000064dc.bin)
    • https://cdn.shopify.com/s/files/1/0435/8445/4817/files/mejewezaminam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1618/3205/files/ma_cuisine_algrienne.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/2317/9416/files/nironuteji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9730/8840/files/finowiligijomexizisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0818/6792/files/acknowledgement_receipt_of_payment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6955/5359/files/kudotejajijozidubukage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9827/4978/files/59241989794.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4903/3627/files/tratamiento_para_caida_de_cabello_en_mujeres.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2598/7741/files/difegumiruzirimabojape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1301/2636/files/mogavekir.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_off000064dc.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_off000064dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64DC 5392 bytes
SHA-256: ea5d630aa0dcf6d10be76c3c1aadcc473e1e7208f3bb28881c911f25d4d0d92a
font_01_sfnt_off0000775a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x775A 9756 bytes
SHA-256: d177f2bafdcfc1b57f29fa189dae3b3bdd06fae56ec4545e5b767d8d70cb12ca

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