Malicious PDF — malware analysis report

Static analysis result for SHA-256 86f67e93903e736e…

MALICIOUS

PDF

37.3 KB Created: 2020-08-19 06:49:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e57fc9bf4d35eb68291c000d73f56b75 SHA-1: 0a24228f38cd008c1cb344b064bea9a835d97a4b SHA-256: 86f67e93903e736ef2eedd4a561d287d658cbfa1b0bcd3736aa884c2dda14a42
234 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a payment redirection lure. The document body, though partially corrupted, contains text related to 'Paypal account number format' and a URL pointing to a redirector. This suggests a phishing attempt to harvest PayPal credentials or redirect users to fraudulent payment sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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.cc/pify?keyword=paypal+account+number+format In PDF document text
    • http://files.darcythomasdo.com/uploads/1/3/2/6/132681783/nurekesubepelodaza.pdfIn PDF document text
    • http://files.arbutuspta.org/uploads/1/3/1/6/131636843/gejowezonifivoxe.pdfIn PDF document text
    • http://files.angipetersonpottery.com/uploads/1/3/0/7/130738507/6567443.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/1/0429/8833/9361/files/vijizunewuxurimugarikuma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7122/5494/files/gutukudulitetomosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2553/8973/files/vovotufixik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7665/7051/files/64705103124.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3495/9259/files/zekeferogimipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9380/2662/files/amitav_ghosh_the_hungry_tide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8559/8615/files/88516880103.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6393/5129/files/the_ants_go_marching_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5013/8784/files/kalista_combo_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9334/3902/files/powershell_5._0_cheat_sheet.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 5

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_off0000540d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x540D 5224 bytes
SHA-256: 49e2fd1ca3c90ba8f6cad86b71e656af779d1339ffe0aaf3117ee23eeb2e7daa
font_01_sfnt_off000065bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65BF 10212 bytes
SHA-256: c86f1052a5ac3d73f5c99e3a100912e2fdf35af5cd23ef7ff5aba93f633b94a8

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