Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d2b167a9dc37e55…

MALICIOUS

PDF

44.1 KB Created: 2020-08-15 08:44:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ac969281e0d3fabde597dfd295e3a400 SHA-1: 10a0bf573fce890fd722cf831dfa9b0d9b65cd60 SHA-256: 6d2b167a9dc37e551a1820646d775b2f5321fcdb09051891f49fd83361ff8088
194 Risk Score

Malware Insights

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

This PDF document contains multiple links, including one to a known malicious redirector at `https://ttraff.com/pify?keyword=jingle+bells+sheet+music`. The document body, though heavily obfuscated, appears to be a lure related to 'jingle bells sheet music', suggesting a phishing or scam attempt. The presence of numerous external PDF links indicates a link farm strategy, likely to improve search engine ranking for malicious content or to distribute further malicious links.

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=jingle+bells+sheet+music In PDF document text
    • http://vovekese.elkhartschoolofmusic.com/uploads/1/3/1/6/131607062/333098b159ed.pdfIn PDF document text
    • http://tajof.lcfanaheim.org/uploads/1/3/1/3/131384429/nojitorowetepomalose.pdfIn PDF document text
    • http://bezoxoteb.thenostalgicmouse.com/uploads/1/3/0/8/130814328/79efb877073.pdfIn PDF document text
    • http://files.littlelotuscafe.com/uploads/1/3/1/0/131070178/lasazuxitemevudi.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/1/0434/5715/1129/files/42876941722.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4130/8320/files/zufutibijizobu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7529/6677/files/obc_caste_certificate_form_rajasthan_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6749/7880/files/lotagugekigezan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6073/1803/files/95458176397.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6676/1120/files/55151447254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0693/3661/files/class_11_biology_chapter_8_notes_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3540/1111/files/one_fish_two_fish_red_fish_blue_fish_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5037/6099/files/gate_2020_me_syllabus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0201/9487/files/rscit_admission_form_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50537202024.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_off00006235.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6235 5036 bytes
SHA-256: 89c6b4f93126bfe966f4b9ec4137e091061c4f962843f1bd6c8b8a1a471d04d1
font_01_sfnt_off0000732c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x732C 14756 bytes
SHA-256: b90bda20304bc2c8e72673d572af8a5c86687422aa108a254060c4a62fba990d

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