Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f865e636a5a0b6a…

MALICIOUS

PDF

31.8 KB Created: 2020-08-20 09:19:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 444cc35dabe5e4e2898eef612fd9ef6c SHA-1: 5bee18b52e247f0c1aa3f9312c261386fbeddee0 SHA-256: 6f865e636a5a0b6a0bf1f60b3fad3305c301487555c850bd2e74669618c772ee
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service. The document body, though heavily obfuscated, contains text related to 'Roblox t shirt template adidas' and a URL that appears to be a lure for free downloads. The ML classifier strongly indicates maliciousness, and the PDF is flagged for linking to known malicious redirector infrastructure.

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=roblox+t+shirt+template+adidas In PDF document text
    • http://jujorefi.selectscotchwhisky.com.au/uploads/1/3/1/3/131383837/buvilozu-lumuna-pazanuzivos.pdfIn PDF document text
    • http://files.holmesroadchurch.org/uploads/1/3/0/7/130738978/vofubuxidulagi_zibuxibi_fapatasozaxefif.pdfIn PDF document text
    • http://files.sptbc.com/uploads/1/3/2/7/132711954/5907764.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/1/0433/5871/6054/files/lakexujugomabuje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9581/8404/files/raxamaxuvuxowewaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1165/3279/files/livro_numerologia_cabalistica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5516/9182/files/10026967959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8956/6627/files/naxurezim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4666/6389/files/modal_verbs_of_obligation_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3547/5624/files/87743453095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/7639/4648/files/10130663724.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5921/6537/files/hematology_analyzer_principle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7992/4893/files/other_words_for_stop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mozesuseb.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 2

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_off0000439a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x439A 5416 bytes
SHA-256: 3c469af332680a5bb3f5d12ceb9784ad4349daac3bb6d3ad2e5fddac302cd1bb
font_01_sfnt_off000055d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55D3 8432 bytes
SHA-256: 4100db9ed89f4f535486c5e9ff9482ca56ca26cbe671f8f77b7ac52638c62592

Open this report in the interactive analyzer, or submit your own file for analysis.