Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca2bfb0494b8077b…

MALICIOUS

PDF

53.7 KB Created: 2020-08-15 07:24:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fd305c4666186604f947c04a8ddd6053 SHA-1: bf20245c3bbd42ea028e10126446306ac5fd33d1 SHA-256: ca2bfb0494b8077b384233a8936fac41e5b77304092d4fee1c29da68dc1ecbeb
202 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'Cra reportable loans' and embeds multiple links. One critical heuristic indicates a PDF redirector link to 'ttraff.ru', which is known malicious infrastructure. Another heuristic flags a PDF link farm hosted on Shopify, suggesting an attempt to distribute content or host malicious files. The document body, though heavily obfuscated, contains the malicious URL and several benign-looking PDF links, likely part of a link farm. The primary attack pattern involves tricking the user into clicking a malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=cra+reportable+loans In PDF document text
    • http://files.beautyclinicohio.com/uploads/1/3/1/6/131636602/nuzidi-nadekosutuz-vonisuxex.pdfIn PDF document text
    • http://files.eddyfinn.com/uploads/1/3/1/6/131637477/mukidaxu-gavuxuse-fobukavi-wodepimusekog.pdfIn PDF document text
    • http://serafo.lahlitah.com/uploads/1/3/1/3/131380213/3387199.pdfIn PDF document text
    • http://files.devonreiffer.com/uploads/1/3/0/8/130814717/zalutojajifanuv-meloperip-terar-beguruxamadad.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/1/0428/2908/6876/files/weragidi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1463/5165/files/38823272366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0210/1923/files/gedatazatavizoxoparara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1576/6177/files/40004077766.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5174/5442/files/le_journal_el_watan_algerie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8974/0441/files/72131976236.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/67157211114.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7437/9173/files/cartoon_wallpaper_hd_for_android_mobile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9309/8660/files/administrative_management_theory_by_henri_fayol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6726/9532/files/donesiwidetisupizav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0397/7634/files/duxonunolumofosumigur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1926/3397/files/sepikudebozutofaferunu.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_off000095cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95CD 4856 bytes
SHA-256: 7fa546adfa89d275d3863fe8a5e7b54c59fd0234ace1270cdb9dd083a1384397
font_01_sfnt_off0000a64e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA64E 10320 bytes
SHA-256: 143fe5eb162a2efc8d25b888132ea0bfa10f1bfaa854eb8e18d5a42466dc7c18

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