Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb95b892b25a2daf…

MALICIOUS

PDF

45.5 KB Created: 2020-08-15 03:39:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 592e86944e86d17f0e62ab89df094566 SHA-1: 5b0032b392a501774f7ed220f3131bad4fdc657f SHA-256: bb95b892b25a2daf3fd4602b4a3d60dcc95578c9af0a0c25fd17f45b1fabb4de
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass external PDF link farm, suggesting a tactic to manipulate search engine results or distribute malicious content. The presence of the 'ttraff.cc' redirector URL further supports the malicious intent.

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=orbulus+for+cardboard+vr+apk In PDF document text
    • http://dorodokob.theyintercept.com.au/uploads/1/3/1/3/131379179/divibobabo_fupiro_nikofowaw_sidasakexi.pdfIn PDF document text
    • http://tivoseto.apexmedicalgas.com/uploads/1/3/1/1/131164250/fikepika-tigifenugab-luzaroku.pdfIn PDF document text
    • http://ketag.michaelschunke.com/uploads/1/3/2/8/132814930/gogusotolejemem_tuxovisabeluli_nenosewesus.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/1/0431/2157/4049/files/google_chrome_latest_version_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0591/0935/files/13455593604.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1411/1903/files/89700531934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6734/1981/files/65062877343.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7754/9726/files/mizibixasilikenuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1240/7967/files/29842613405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0521/2832/files/81222487421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5412/1635/files/96216713538.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 3

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_off00007446.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7446 5440 bytes
SHA-256: 291edf42dff3cc535217664945a27a372d040cb3464514912c0c577a208788dc
font_01_sfnt_off000086d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86D2 10088 bytes
SHA-256: 69f2e0ad1d175ed917e55ed6b09ac7d055e7699472c28ebd7da9b9e33f7d0cbc

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