Malicious PDF — malware analysis report

Static analysis result for SHA-256 113f0fd2f79e7bef…

MALICIOUS

PDF

51.6 KB Created: 2020-08-11 08:05:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ef3a8d474085e2a9d128d6489844c3ca SHA-1: e2591173be7c2d5013a03db12c0c029abb8191ab SHA-256: 113f0fd2f79e7bef3b6358ac60627ea9e7bce5a0dbe248bd2c63d76751b19982
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, masquerading as a cybersecurity strategy document. The primary link, 'https://ttraff.com/wb?keyword=iran%20cyber%20security%20strategy%20pdf', is identified as a malicious redirector, indicating a phishing or malware distribution attempt. The ML classifier strongly supports the malicious verdict.

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/wb?keyword=iran%20cyber%20security%20strategy%20pdf In PDF document text
    • http://files.tylershipmanmemorialcarshow.com/uploads/1/3/1/3/131397973/529ce78.pdfIn PDF document text
    • http://files.compasswellnesscoaching.com/uploads/1/3/0/8/130874543/1997618.pdfIn PDF document text
    • http://marofuje.meagangipson.com/uploads/1/3/0/7/130776418/cfafcc2815d135.pdfIn PDF document text
    • http://files.yenbai.life/uploads/1/3/0/7/130739340/depuxewodirekabamir.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/1/0433/0687/7080/files/85213016947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6356/6755/files/viluvoketetipofunonelemi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12035000993.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3849/8206/files/nulimevegulafajoga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5358/8390/files/patupimamevenuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sakemiribukewud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2344/0792/files/95657822730.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8765/8141/files/jupukisepexasatekipip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3688/4642/files/mukuxezolumixigurevanog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3328/8088/files/mowuzateta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6453/9798/files/44519632586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0086/3643/files/calidad_total_y_productividad_segunda_edicion.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0000a420.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xA420 18676 bytes
SHA-256: 8a6174901ba5057ec46441f3570e24d006e178234556581f6e5928422e308d6a
font_00_sfnt_off00006e35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E35 5472 bytes
SHA-256: ba067b8cd6bb1ef84ce8f3d66c73ec3437904a531fa112da5e923cafe4b72e9e
font_01_sfnt_off000080da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80DA 10288 bytes
SHA-256: 2ae7b822e8e010ba702d29d9a7956e2397b4d52e032000d71059d981643fe035