Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7fc9c7d7d3c476d…

MALICIOUS

PDF

530.1 KB Created: 2020-08-20 12:10:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2b668736e6217d976e3258d8cc0706cb SHA-1: 9928d4876548db8cc779f34624a260760d2be08a SHA-256: d7fc9c7d7d3c476d7f447815950657074530f687d01bb36ff9640cdf2b4b2541
142 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is a malicious redirector and uses lures related to advance-fee scams and invoices. The embedded URL, https://ttraff.com/pify?keyword=klockner+pentaplast+annual+report+2018, is flagged as malicious. The document body, though heavily obfuscated, appears to contain the report title and the malicious URL, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9823

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.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=klockner+pentaplast+annual+report+2018 In PDF document text
    • http://files.sbcopywriting.com/uploads/1/3/1/4/131438167/4118520.pdfIn PDF document text
    • http://files.schoolofallrelations.com/uploads/1/3/1/6/131637881/xadujofo-temezasorik-zenom.pdfIn PDF document text
    • http://dezom.helpinghandsquiltguild.com/uploads/1/3/0/7/130775111/519061.pdfIn PDF document text
    • http://files.silvaweb.net/uploads/1/3/1/3/131380021/7795ffa7b2fd.pdfIn PDF document text
    • http://pebowo.kellyeharnett.com/uploads/1/3/0/9/130969744/jugifavisadanawo.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/1/0432/3485/3021/files/fosabakedofoxekana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0008/5160/files/61051369446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8158/1223/files/delta_sigma_theta_pyramid_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5083/5876/files/xotode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7916/4314/files/65576371098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0635/9713/files/bejene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7112/7206/files/maboro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5877/3662/files/4165611657.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
🗂 Part of campaign: silvaweb.net 3 samples

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0007d936.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D936 5480 bytes
SHA-256: ec6048f48eb5f592f3479969d73af4d44426fdf6e5376ceef2451b29a1134476
font_01_sfnt_off0007ebdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EBDC 17920 bytes
SHA-256: e89ddf4f7a409b8e56b205aa1db986561f17e08728798b2d54b70f2bf1e90537
font_02_sfnt_off00082298.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82298 16208 bytes
SHA-256: 19f3ceb5f1bf2bc9e530cab6b332774e770dde9cbab7c24c961dedb1b1dcc185

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