Malicious PDF — malware analysis report

Static analysis result for SHA-256 d89eeaac87f4d468…

MALICIOUS

PDF

55.8 KB Created: 2020-08-05 14:01:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 657729276e52ab126034a7f696525eca SHA-1: 0e733af47da7adc06d14c136a2e57bd6f96364a4 SHA-256: d89eeaac87f4d468a063ec7edd0d6ed0081cdfa78a6567f3842abe1ffabc975d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, a technique known as a link farm, designed to artificially inflate search engine rankings or to redirect users to malicious sites. One of the primary links points to a known malicious redirector, ttraff.cc, which is likely used to obscure the final destination of the attack. The document body contains garbled text and metadata indicating it was generated by wkhtmltopdf, suggesting it's not a legitimate document.

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.cc/pify?keyword=cazadores+de+sombras+renacimiento+3+pdf In PDF document text
    • http://files.bridgetotransformation.com/uploads/1/3/1/3/131398517/f2b34536a388be3.pdfIn PDF document text
    • http://files.crengtech.com/uploads/1/3/0/7/130776055/suwalitamisot_ferunodos_fowixolag_warapimolazu.pdfIn PDF document text
    • http://files.amandaasofsky.com/uploads/1/3/0/9/130969403/zezugubusopom.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jeravutudab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2401/5783/files/95086971923.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3137/8592/files/24149804502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3795/7023/files/analytic_geometry_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0213/3653/files/camera_scanner_to_kndigen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7974/6201/files/rovinepene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6866/1670/files/wufexupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4754/2175/files/43725787356.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7055/3238/files/21772910935.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7767/1843/files/gizosatuzitosabal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7218/3703/files/82072419959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65939759823.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000807d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x807D 5432 bytes
SHA-256: c6c5eb5785d1e9624928b5f5bab2f411ae12e6c56347e98b64236a415f59eba3
font_01_sfnt_off000092e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92E3 15212 bytes
SHA-256: 3b822546015aa4872fea04a51c9f051a3c25b75b78b939298734c40b9261ca6b
font_02_sfnt_off0000c210.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC210 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34