Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b4dd68fc903c35f…

MALICIOUS

PDF

45.4 KB Created: 2020-08-12 02:03:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ae113a842732fdb097668cfae805033b SHA-1: 66ca5e00344212f1c8ffa8fac00d1b4213aa2507 SHA-256: 7b4dd68fc903c35f50e4db9d7809e39db2837661ff9f110dcc802e18ee87a6c8
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to redirector services like 'ttraff.ru'. These redirectors are designed to obscure the final destination and are often used to distribute malware or conduct phishing campaigns. The presence of a malicious redirector link and a large number of external PDF links strongly suggests an attempt to lure users to malicious content.

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.ru/pify?keyword=court+of+appeal+rules+2020+nigeria+pdf In PDF document text
    • http://ridurol.carriagesatbriargate.com/uploads/1/3/1/6/131606201/nonezafofizivugel.pdfIn PDF document text
    • http://files.sitemuse.org/uploads/1/3/1/6/131607010/fanedimawopo_wuxudaranu_nakesawapakamot_kilaviwizikuwal.pdfIn PDF document text
    • http://files.beminent.com/uploads/1/3/2/8/132814589/2982178.pdfIn PDF document text
    • http://fujatugut.svfmcoalition.org/uploads/1/3/0/7/130775768/nozazoj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gipal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/8907/3062/files/amar_ujala_newspaper_file_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2308/9307/files/nusijakojodobuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1705/1048/files/headplay_se_v2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2865/9874/files/apostrophe_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/rubakido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0300/9430/files/12259348811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7016/8986/files/bolaxoxumilelunogaxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3653/1095/files/oxy_acetylene_welding_equipment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7567/4012/files/sabamijevoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1275/8426/files/lakowanax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/bikud.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 3

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_off00006568.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6568 5388 bytes
SHA-256: 983e51762403cf2d8eb3d961b6091a113b6f2f379da8808a51227bd1c1d400eb
font_01_sfnt_off000077cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77CF 10240 bytes
SHA-256: ca46b9cd196a12efed81be16a524089644f1b001cfd9e580d0fbe4014330307a
font_02_sfnt_off00009a96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A96 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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