Malicious PDF — malware analysis report

Static analysis result for SHA-256 95391488a586158d…

MALICIOUS

PDF

40.2 KB Created: 2020-08-01 06:20:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 99deb5267364d6f5ba2ddad4b1ea33de SHA-1: 829ab444156f86bcc2317adacbd615e07bfbc8a1 SHA-256: 95391488a586158df47471d7881a5354b9b2e1933efc1e84678d1443e09207cf
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure, specifically 'ttraff.cc'. The document body, though heavily obfuscated, contains references to academic material and the malicious URL, suggesting a lure to external content. The presence of numerous PDF links, including those hosted on cdn.shopify.com and other file-sharing domains, indicates a link farm strategy to potentially distribute malware or phish for credentials.

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.cc/pify?keyword=sparknotes+sir+gawain+and+the+green+knight In PDF document text
    • http://files.hugsforhounds2.ca/uploads/1/3/1/6/131636807/loguki_xemikiwugo_jojizog_nidejobugiwo.pdfIn PDF document text
    • http://files.mrhibbert.com/uploads/1/3/0/8/130874679/05489c.pdfIn PDF document text
    • http://files.handyplan.net/uploads/1/3/2/6/132695732/xebefiwaguti_gusadapeja_jatobozilezu_babofefodudov.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/1/0428/0870/5187/files/hollywood_forever_cemetery_sings_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5692/9687/files/dubexufojebamenemugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7073/2950/files/3936941899.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/97897646990.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2266/1278/files/83422119991.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52135332303.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4819/8556/files/88986539123.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1371/7662/files/vuneno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6878/3766/files/zidud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/52733892229.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 7

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fe7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FE7 5448 bytes
SHA-256: 54f4fd5c0a5db1756a22e4b457ff306b8918c4c6a387518290c13d45ddf6b890
font_01_sfnt_off00007279.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7279 9748 bytes
SHA-256: b67cc7d0bc8ddf3e959a3fd26aa3bac1d2fc94b0e952b6b3837030676f1b4070

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