Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e36725330ab517f…

MALICIOUS

PDF

50.8 KB Created: 2020-07-15 13:36:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b4e33e511ffcf75154165184ae5817e6 SHA-1: 9e25f0a6d7a757f1ae3a2a9df7405a0920041210 SHA-256: 6e36725330ab517fdd4a31d9e4357d1b6aeec7e2e22787eb304d4ed29e35ecff
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links to external resources, many of which are identified as malicious redirectors or part of a link farm designed to host further malicious content. The presence of a link to 'ttraff.com', a known malicious redirector, strongly suggests a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains metadata related to 'wkhtmltopdf', indicating it might be a generated document used as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=realismo+juridico+escandinavo+pdf In PDF document text
    • http://files.shopboutik.com/uploads/1/3/1/6/131636890/garetuxip_wedeposorabajok.pdfIn PDF document text
    • http://files.denisepaula.com/uploads/1/3/0/8/130873903/rejegewiwasi-pewegaxafe.pdfIn PDF document text
    • http://files.sustainablesynergy.com/uploads/1/3/2/7/132710756/zedikikojofade_fefagivejide_perifofoji.pdfIn PDF document text
    • http://files.napavalleybasketballdevelopment.org/uploads/1/3/1/3/131397946/zulerorojaxisadev.pdfIn PDF document text
    • http://files.finblooming.com/uploads/1/3/1/4/131407263/2453151.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/1/0427/9946/4611/files/1889521433.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tunamowari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3685/9813/files/69291192757.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/92588710477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2861/9168/files/84486294179.pdfIn PDF document text
    • https://pimiwefenafi.files.wordpress.com/2020/07/fosalobakit.pdfIn PDF document text
    • https://voluniw.files.wordpress.com/2020/07/xeselibibob.pdfIn PDF document text
    • https://laradef419624067.files.wordpress.com/2020/06/fuwunetovevarubagoludi.pdfIn PDF document text
    • https://gedapaf.files.wordpress.com/2020/07/sabexiluxafudujixitoli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vunazazaxukatokezidabu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53741046047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2753/files/92343971599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/takuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8851/9080/files/rapukixixozar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mefopevepal.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_off0000864b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x864B 5244 bytes
SHA-256: c28900e0e549495fa32ed1b06cd2d3f1977866cc4cb945cf66e4ea9e11ed597c
font_01_sfnt_off0000980a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x980A 11008 bytes
SHA-256: cb2a3cd982a24fc76b54ea97e51d962911fcd4755263c536f0f7090fd82a9620