Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab61229519e0242e…

MALICIOUS

PDF

49.7 KB Created: 2020-08-11 06:02:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8135a6d31ee424e78ff0f45fa7e0d20d SHA-1: ee24b895749a44c142c600d3078fb4adabc062fa SHA-256: ab61229519e0242e99a847ccb5ac5abcaa9c0519400efb0a5e3d2c33b31954ff
194 Risk Score

Malware Insights

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

The PDF document contains numerous links, including one pointing to a known malicious redirector at https://ttraff.ru/pify?keyword=substation+automation+system+architecture+pdf. This indicates a phishing or social engineering attempt to redirect the user to malicious content. The document body, though heavily obfuscated, contains references to the target URL and other benign-looking PDF links hosted on Shopify, likely to lend legitimacy to the overall lure. No scripts were extracted from this sample.

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=substation+automation+system+architecture+pdf In PDF document text
    • http://files.chadandre.com/uploads/1/3/0/7/130775062/cd13b290cb5ae4d.pdfIn PDF document text
    • http://files.lightonwatertcm.com/uploads/1/3/1/4/131437862/sutodew.pdfIn PDF document text
    • http://files.bagsofnaturestore.com/uploads/1/3/1/4/131453268/gililujozeve.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/1/0429/1559/4393/files/36920973212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1390/6327/files/51761420532.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/head_first_sql.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9770/2046/files/pekafafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1470/9670/files/wexozoperaginizujuwuraxuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zisavugeti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9946/9464/files/37921440553.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4525/6352/files/aprendizajes_clave_secundaria_ingles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2846/3271/files/gm_to_m.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1785/4373/files/36997199969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8140/9436/files/bokaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9318/1087/files/sound_pollution_in_marathi_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1131/7658/files/air_force_question_paper_with_answer.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_off000083b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83B9 5708 bytes
SHA-256: 1d9046d7983cbb395d798ff6071d4eaaa370fc8a84a1a3f74da1c02efc796018
font_01_sfnt_off000096f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96F1 10144 bytes
SHA-256: 14144ea95e450413ccddf429249d69667c9cd6adab0b3998dd373bb67ec548f1

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