Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba620e012212fc3e…

MALICIOUS

PDF

36.1 KB Created: 2020-08-21 09:11:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5b6e958fad691518a572f94fa770d574 SHA-1: db0958f965ee301d12506c748fe00f7883a9496d SHA-256: ba620e012212fc3edbf72e5c0be6ce5acf6d2fe334e24f977669cd33dd884fd8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with one heuristic specifically identifying it as a 'PDF SEO Link Farm'. The primary malicious link, 'https://ttraff.ru/pify?keyword=division+by+zero+error+crystal+reports', is flagged as a known malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other benign-looking Shopify links, suggesting a lure to a spam or phishing campaign. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=division+by+zero+error+crystal+reports In PDF document text
    • http://mabuted.vitallifehypnosis.com/uploads/1/3/0/8/130813372/pofexibasepon.pdfIn PDF document text
    • http://files.harborlandscape.net/uploads/1/3/0/8/130874620/34f81a5.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/1/0434/1887/8114/files/42123170167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9322/1783/files/algebra_2_worksheet_generator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8091/6893/files/regrouper_plusieurs_en_ligne.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fezusagofetivori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5801/1035/files/basic_english_proficiency_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8039/3639/files/5828218151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4098/7543/files/alimentos_con_alto_contenido_de_calcio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9228/6363/files/zitotawubutejab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9724/2280/files/69071300363.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6964/3675/files/how_to_train_your_dragon_2_putlockers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8549/6482/files/5216985828.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5936/3488/files/ribogoruminofegapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5528/3350/files/xumanamagozipopovupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4154/4600/files/96542608508.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D34 5280 bytes
SHA-256: 2fb8ff9f0d38846500e1ea380dc68338874993882a5262160a01ef262b0d2e85
font_01_sfnt_off00005f42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F42 10572 bytes
SHA-256: 3232c49b7bf34998d677d4bbecdbd83ebbff19cf01fb9e1e64a2fb4dfc98a7a0