Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba61e81b12ac0da9…

MALICIOUS

PDF

31.2 KB Created: 2020-09-11 22:19:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 00dc92899fc29a6db4bbcb4b5b3de1ad SHA-1: f9e4fe0fd2b0405e93d12fe11269b59763a0c493 SHA-256: ba61e81b12ac0da92e3e786d66a9a84daf4c9466ad5701601de66e2e3efd6590
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The embedded document body text, though heavily corrupted, contains URLs that are also present in the list of extracted URLs. The primary malicious URL is https://ttraff.me/wix?keyword=cut+song+love++tamil, which is likely used to redirect users to further malicious content. The PDF's structure and the sheer volume of links suggest an SEO poisoning or link farm attack.

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.me/wix?keyword=cut+song+love++tamil In PDF document text
    • http://parumab.armonklions.org/uploads/1/3/2/3/132303189/zigex.pdfIn PDF document text
    • http://togaxowej.haapsdatters.com/uploads/1/3/0/7/130776699/5699611.pdfIn PDF document text
    • http://voroj.stevescustomtattoos.com/uploads/1/3/1/8/131856706/84c35b2b8f.pdfIn PDF document text
    • http://desupigu.retroca.com/uploads/1/3/0/7/130739892/7854976.pdfIn PDF document text
    • http://files.juliannawells.com/uploads/1/3/1/6/131637881/9550118.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_523909a8823845b3ac9006a719307e13.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/6c032c_0c96bd01bdff4241b0c89f4192469e61.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/ca9b0a_7c4f5af114534cc79373b0ebd30ef450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4126/8647/files/90070562883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7542/0835/files/loading_screen_simulator_achievement_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/rarejoxanijenoruzomorege.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/2f3ac6_6372feaf8043472492e129225e6e509a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/a107db_95bf3d702fc04a25ba6d3593b2976d77.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 8

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_off00004011.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4011 4872 bytes
SHA-256: fff388e9e57746c502ca7987fbb5f60984e4157bb399101ebb8ecf97537390e8
font_01_sfnt_off00005095.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5095 9328 bytes
SHA-256: 2410ad8fa7ab46aa0445e600c720e3147a5ace863658aba460d704aaa44a5865

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