Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b1ec7140745f7f6…

MALICIOUS

PDF

35.9 KB Created: 2020-08-25 03:47:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 78ecfc0d0671a6edc5a4725586cadaf1 SHA-1: 912732e906b1b1d4bb99fc6580531a83661d277d SHA-256: 2b1ec7140745f7f65ef3bd5b0b3fe0eb5e52c8b96bce8179c242a325293f2dcb
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic match for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=ancient+egypt+afterlife+worksheet', which is likely the lure. The PDF also exhibits characteristics of a PDF_SEO_LINK_FARM, with numerous external links, many hosted on Shopify. The primary intent appears to be redirecting the user to a malicious site via the embedded link.

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=ancient+egypt+afterlife+worksheet In PDF document text
    • http://vedesaxen.vinified.co.uk/uploads/1/3/2/7/132712615/d7ded195c47fb.pdfIn PDF document text
    • http://files.dynamissconsultancy.com/uploads/1/3/1/3/131384583/fd1450.pdfIn PDF document text
    • http://vekasi.crprentice.com/uploads/1/3/2/6/132682347/2489684.pdfIn PDF document text
    • http://files.allroundrendering.com/uploads/1/3/1/0/131070581/3bbc7dd52d8f4.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/1/0433/1234/9334/files/naximasukafutususuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8303/7860/files/lixopolawokuwozado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6875/8943/files/6515879862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4644/4960/files/tutorial_hack_kali_linux_bahasa_indonesia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5131/7408/files/lonexijibajaxeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9812/1119/files/duxitobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1618/3198/files/manual_bases_de_datos_relacionales.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/rodojav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1344/6564/files/kerematamiwanomopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8184/2341/files/fifopoxuwadezalebibenana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/5937/2183/files/zomupuviterinodo.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 4

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_off00004eed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EED 5524 bytes
SHA-256: 0d5e97d562fe51ff246657005fc9641595ba0125bdaba8a27bbf354f7f3c71c7
font_01_sfnt_off000061cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61CB 9772 bytes
SHA-256: 5ad6077967e49dddc78856de04de90f9a7ac629e8e0b0b991d650207e87899eb

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