Malicious PDF — malware analysis report

Static analysis result for SHA-256 4eeccabf60c67530…

MALICIOUS

PDF

40.2 KB Created: 2020-09-18 06:48:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3fc2c652d0e739fee2975e3e8df52609 SHA-1: cb69a639b61a9fc1b56cca5a790a7c90dc30ef20 SHA-256: 4eeccabf60c67530addd882d8843cc259ebfd4ec29f0d7105a02349fcdaa50d0
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded links suggest a lure for free ringtones, which is a common social engineering tactic. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, likely for SEO manipulation or to distribute further 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.club/wix?keyword=free+ringtones+sent+to+phone+by+text+message In PDF document text
    • http://naxobe.watergardenclubst.org/uploads/1/3/2/6/132681352/rutexorifavu_pelusima.pdfIn PDF document text
    • http://files.tactmealcenter.org/uploads/1/3/0/7/130775536/8af36c9fb2.pdfIn PDF document text
    • http://files.whitstablemusicsociety.org.uk/uploads/1/3/1/1/131163969/731439d5.pdfIn PDF document text
    • http://files.besttoysbyage.com/uploads/1/3/0/8/130814157/1709724.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/1/0428/5127/0823/files/45556692358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3260/0985/files/rpp_bagian_bagian_bunga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/3644/2524/files/kobolds_and_catacombs_rogue_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2736/5031/files/java_basic_interview_questions_for_freshers_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7205/2634/files/mesubafadojiwamiga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0692/4712/files/palufebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28821374719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0302/7361/files/m-audio_keystation_61_ii_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6819/4965/files/pover.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 6

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_off00005edb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EDB 5468 bytes
SHA-256: 52af132fff431de46b5b422d98b055d6952dd3ed6e25f954b34df59ef0c1ee84
font_01_sfnt_off00007159.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7159 10184 bytes
SHA-256: 1902ec749ea6f842c91315d7ba50842f46c873e6adad5882678553bb683da29a

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