Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bd45b7f87ae0cb9…

MALICIOUS

PDF

45.8 KB Created: 2020-08-11 23:30:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a36fa7a00bc15b146c30c1357ee5575c SHA-1: 59256742d8f44ec7280370b2dda7513576af1e3f SHA-256: 7bd45b7f87ae0cb9d06990c639e06edac2c4e8025aefb654c9325fce60d9ad38
194 Risk Score

Malware Insights

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

This PDF document contains embedded links designed to redirect users to malicious infrastructure, masquerading as 'Job interview tips pdf'. The primary redirector URL is https://ttraff.cc/pify?keyword=job+interview+tips+pdf. The document also hosts a large number of links to other PDFs, likely for SEO manipulation or to obscure the malicious redirector. No scripts were extracted, but the PDF structure and embedded links strongly indicate a phishing or scam attempt.

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=job+interview+tips+pdf In PDF document text
    • http://files.key2evolve.com/uploads/1/3/0/8/130874318/zasabuxemer_xawapikiguromik_balasoge.pdfIn PDF document text
    • http://files.cooliecollection.com/uploads/1/3/2/6/132695432/3722858.pdfIn PDF document text
    • http://files.oswegoeasthighschoolbands.com/uploads/1/3/1/4/131438418/6551688.pdfIn PDF document text
    • http://files.mountainspiritswellness.com/uploads/1/3/1/0/131069906/sozakukowux-kinotowikik.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/1/0431/0899/1125/files/31886530001.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9651/4461/files/45821373545.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9676/8673/files/bizoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5000/0796/files/69238837126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1629/8393/files/wezegusinizuxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8721/6293/files/441986331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4964/7261/files/48833252569.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7243/8947/files/3779855100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5945/3845/files/9mm_reloading_data_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1816/5144/files/jeguniroporuxaguseta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9067/3813/files/dunesizonevejekij.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000076c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76C8 5076 bytes
SHA-256: e34dc5527b7b4600b61e11ef6cb51f8283362ee2efa8402f7c6e847653ada3aa
font_01_sfnt_off00008824.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8824 9964 bytes
SHA-256: b191c09a9ccf55ed7753896967e17d8cf1252bb4711fbe7b3225a3cdabed535a