Malicious PDF — malware analysis report

Static analysis result for SHA-256 5af24a5bc9e5e1cb…

MALICIOUS

PDF

56.2 KB Created: 2020-08-17 18:17:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bb9d3dc7a8102570248ff41e980bde91 SHA-1: f1ea2156cc808549c4f1ed4ba44583ef1b19850a SHA-256: 5af24a5bc9e5e1cb3c3bec4ddca13bec0207ebadbd0169e90a9cdcdabc1152b2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, also contains URLs that appear to be part of a link farm designed to lure users to external sites. The primary redirector URL is https://ttraff.com/pify?keyword=information+asymmetry+real+life+examples, which is flagged as malicious.

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=information+asymmetry+real+life+examples In PDF document text
    • http://files.deneiseself.com/uploads/1/3/2/7/132741433/legalejat.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/1/0436/9124/5733/files/c_read_text_file_line_by_line.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4627/9080/files/ninufilomekojifawuduvap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1960/7965/files/38107714274.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8125/3535/files/luzubugixomefatutabudaza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8731/4585/files/24670768848.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5257/1555/files/jadajowawikuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/metegemekipezafekude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9811/2167/files/57154559278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8091/7926/files/sakemofafojupijepujotiwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mubexuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3305/1814/files/86397107387.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6426/2818/files/87375624120.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0008/6180/files/gomujuvokafaxadototixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4462/3768/files/veduvaxafupemufidu.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 1

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_off0000988e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x988E 5152 bytes
SHA-256: ad21a3208c09567a4c0e8b72e7a3c194ab9faec7117e9c37579da6b093660790
font_01_sfnt_off0000aa08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA08 12976 bytes
SHA-256: 1b3139104121d9f6c0b1e4f7b17688c8ffa5251134e1579b4feed73b35218e3f

Open this report in the interactive analyzer, or submit your own file for analysis.