Malicious PDF — malware analysis report

Static analysis result for SHA-256 52e7085a3f506025…

MALICIOUS

PDF

245.4 KB Created: 2020-07-27 21:57:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 255a2f084bc3ca52f4500d21cef8392f SHA-1: 7472a2bdf3815676dae5fe90cc49b86e860c2c14 SHA-256: 52e7085a3f506025c01be202e252587b8de685c5cede18c606fb4c37299de963
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. Additionally, another critical heuristic indicates the document is a lure for recovery secrets or private keys. The embedded URL is likely the initial stage of a phishing attack designed to harvest credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=apache+benchmark++mac In PDF document text
    • http://files.weightknowmore.com/uploads/1/3/0/7/130775201/falujolasu.pdfIn PDF document text
    • http://files.euron.co/uploads/1/3/1/3/131398188/d4c6a86.pdfIn PDF document text
    • http://files.artexfurniture.com/uploads/1/3/1/3/131384635/fc92a.pdfIn PDF document text
    • http://files.enactusguelph.ca/uploads/1/3/0/8/130813997/754623131.pdfIn PDF document text
    • http://files.sarahbrothersbot.com/uploads/1/3/1/3/131384555/dukinenugadinov-xukubola-mogigib-mujobutavopoput.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/1/0436/7430/4662/files/kitijajufolav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/72619586694.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9302/4151/files/linekowir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/91498659200.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5398/1589/files/93340217261.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3667/2162/files/26928931888.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5287/6455/files/1248499883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7678/0192/files/vuxuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/89756011586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7292/9435/files/zagifezi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8062/3015/files/86950192128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6807/0824/files/74217845896.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 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_off000386a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x386A9 4704 bytes
SHA-256: 4d29f7e5a490048135ed6c8e1b1d01db9fe34a55959f7cd6044907992c1fa557
font_01_sfnt_off00039654.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39654 16132 bytes
SHA-256: d5768e3f122c9b44594dbf5d17b6aec8c5503458d70abead2248ec325071e959

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