Malicious PDF — malware analysis report

Static analysis result for SHA-256 09ea9fb8ad20c624…

MALICIOUS

PDF

74.9 KB Created: 2020-08-06 14:59:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9736259ef5a7b7d2589edbef7d4cea92 SHA-1: d765539ab613ce5163244127fa29ef838dbc6637 SHA-256: 09ea9fb8ad20c6240f32b6d00636b4dd881d6b13f8af2da620e531ff6da28489
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.ru) that is known to host malicious content. The document body, though heavily obfuscated, contains a reference to the same redirector URL. This suggests the primary purpose is to redirect users to malicious infrastructure, likely for phishing or malware distribution.

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.ru/pify?keyword=algebra+definition+and+examples+pdf In PDF document text
    • http://files.joeyessmaracing.com/uploads/1/3/2/7/132741029/10833.pdfIn PDF document text
    • http://files.sharkassault.com/uploads/1/3/0/9/130968950/zubizoziza_vivovap_mafudis.pdfIn PDF document text
    • http://files.oliveleafhomes.com/uploads/1/3/2/6/132682232/jarazusaza.pdfIn PDF document text
    • http://files.justinmikos.com/uploads/1/3/1/4/131437977/jadepizarilolikogeru.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/1/0429/8312/9251/files/49018808270.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2584/8727/files/76204948790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4396/1494/files/zigibuziseme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0706/5757/files/37856572565.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3495/9256/files/biology_notes_class_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2642/1672/files/74898937939.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0613/0337/files/suxosojuvigopimekaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1358/5566/files/lopubomejifaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7175/6698/files/de_2501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4152/9754/files/duxekebafakotenurajasotub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5157/3657/files/kowemub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7243/7910/files/39262630553.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7346/9597/files/47445292419.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ca6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA6A 5556 bytes
SHA-256: 94c6dda38bc8839dad6afcd5715155879327a4f37a87cc0039e4523ca7d06904
font_01_sfnt_off0000dd3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD3F 11752 bytes
SHA-256: 23480bb80b92a23810980046abb60fb128468fef67ad1e92134433a76b5e35d2
font_02_sfnt_off000104ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104CA 17224 bytes
SHA-256: ff1a5f617e4eefda294404dcef082d3058dffc13de9ac47b812cb027b9dfc5d3