Malicious PDF — malware analysis report

Static analysis result for SHA-256 2252f1ce1fa99211…

MALICIOUS

PDF

44.1 KB Created: 2020-08-22 00:15:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3b794773a36884e60a25c7c29a56578c SHA-1: 74a4a6b7084bb394cebc14f2029d9d4e66669252 SHA-256: 2252f1ce1fa992113aae1a7d727d31c2304f5896ce7d7ef6b60cd738457d094e
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the redirector link, suggesting a social engineering lure. The heuristic firings indicate the PDF is designed to redirect users to malicious infrastructure, likely for further exploitation or credential harvesting.

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.com/pify?keyword=merge+two+columns+in+rdlc+report In PDF document text
    • http://fizefimun.raydesign.com/uploads/1/3/0/7/130776271/xolelefuruvem_fagefebumabibi.pdfIn PDF document text
    • http://files.bigfatsmile.io/uploads/1/3/1/4/131438869/sorujavubib.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/1/0451/0639/7337/files/android_root_program_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9291/1007/files/nowuwinudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2360/4631/files/cannot_find_required_map_name.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4017/8333/files/7500495266.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3000/1302/files/sesedewajural.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6612/2662/files/59601766728.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1079/3370/files/bengali_movie_songs_dj_remix_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kewosa.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 2

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_off00006de2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DE2 5280 bytes
SHA-256: dc680ba091b79c2b5c3e4d13c67086fe0f9dcbcd54b38128afcfbbe735ee2e38
font_01_sfnt_off00007fe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FE2 10344 bytes
SHA-256: 2d55952524dc2166b78d441085ebedcab1f7eb154787423c5930fd6082e5c69a

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