Malicious PDF — malware analysis report

Static analysis result for SHA-256 f687dab9ad1cf891…

MALICIOUS

PDF

59.0 KB Created: 2020-08-09 09:38:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7a29345997fc705e3918f629cdb9fc9c SHA-1: 9ec974400e7d4dee153f9c1c0968c16ef4ba144a SHA-256: f687dab9ad1cf89104c261605f1e49bfdbde78983bdb744e778ff228f784cbfe
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains multiple embedded links, with a critical heuristic identifying a malicious redirector link to 'ttraff.com'. The document body also contains this URL, suggesting an attempt to lure the user to a malicious site. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy, likely for SEO manipulation or to obscure the final malicious destination. No scripts were extracted, and the primary malicious activity appears to be URL redirection.

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=antibioticos+pdf+unam In PDF document text
    • http://files.bignessart.com/uploads/1/3/0/7/130740255/ragezuzo-dunuxidefugaj-dakema.pdfIn PDF document text
    • http://files.premierprescotthomes.com/uploads/1/3/0/7/130739987/8964067.pdfIn PDF document text
    • http://files.bandonsupply.com/uploads/1/3/1/0/131070389/6acf19.pdfIn PDF document text
    • http://files.preferredfuturetherapy.com/uploads/1/3/1/8/131871642/vazigunuvope.pdfIn PDF document text
    • http://files.transformationdash.com.au/uploads/1/3/2/7/132710717/mobomedumuj-noxuvab.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/1/0431/8406/2622/files/mi_mi_mi_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4131/6249/files/xowageriwefazewudepujegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7231/4789/files/pdf_viewer_no_toolbar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2550/6208/files/26690632983.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8779/7160/files/samurai_x_reflection_english_dubbed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1817/4120/files/bruno_latour_nunca_fuimos_modernos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8422/6453/files/duzep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/21208423690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8344/5925/files/7007455475.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0632/8995/files/82011867121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fuwemosuwizukuxitakalav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/91008854136.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 7

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_off0000a4e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA4E0 5304 bytes
SHA-256: 335c3ab39f1588008e93fe8d06173e4727053041f11a4907ce4db358e65259dd
font_01_sfnt_off0000b6db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6DB 12124 bytes
SHA-256: d1d0eed009d6b5afe02be516bc63df79479bd562b5366455d3298ee90ecb85a4

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