Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd7943b9efd6d8ff…

MALICIOUS

PDF

47.9 KB Created: 2020-08-17 16:20:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4313500c1ac968f09e76bfa6bf647ce7 SHA-1: 790f54e50a40d69f6dbf6bdf45a8334d2ea0270e SHA-256: dd7943b9efd6d8ff9779fc6de1573df47413cac04bd12bb63b6b72286717bf6a
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing indicating it links to a known malicious redirector, specifically 'ttraff.com'. The document body text and embedded URLs reinforce this, with one URL directly pointing to 'ttraff.com' and containing keywords suggesting a lure for an APK download. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious payload. No scripts were extracted, but the primary attack pattern is a redirection to a malicious site.

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=all+in+one+er+latest+version+apk In PDF document text
    • http://dipaxa.abrahamsbox.com/uploads/1/3/0/7/130739829/koboduxono-zojopod-jijasolixiris.pdfIn PDF document text
    • http://files.gammazetadecaturtn.com/uploads/1/3/2/3/132303219/4033c57.pdfIn PDF document text
    • http://files.literacyshedblog.com/uploads/1/3/2/7/132740949/zobawonovozin.pdfIn PDF document text
    • http://files.woodlingsart.com/uploads/1/3/0/7/130774973/746cea78b8.pdfIn PDF document text
    • http://vinavigiw.aeea4u.org/uploads/1/3/0/7/130740517/kidavililolako.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/1/0428/5690/6918/files/the_walking_dead_comic_online_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7058/7029/files/asthma_medication_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/23083433767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8486/3893/files/86389924284.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0923/5355/files/free_drawing_entry_form_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nifafujejugafux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7142/2102/files/datekopadudadivuxazofepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7449/4369/files/96925898372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4603/3818/files/81508310654.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

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_off00006312.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6312 4924 bytes
SHA-256: 8134309d985426abc0c0b8a6eea9b7bccf93b38ff0716ca60662c49025a991d7
font_01_sfnt_off000073e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73E5 13120 bytes
SHA-256: f82560f075d5c13e526d71ccd59bc28c9e6f80f823bc6d647d0cf813b4615e6f
font_02_sfnt_off00009db9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DB9 16092 bytes
SHA-256: e9fe716c2abc985b12a899a49d5539e4e8be1b56d50c083b30290d85a2a7c848

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