Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d75621620865b9f…

MALICIOUS

PDF

41.0 KB Created: 2020-08-06 07:32:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 60ee397649d35873178fb8854a3d94ae SHA-1: d309bdf6892cbd91257c90fa3e13e2ddc37a0184 SHA-256: 4d75621620865b9f875caaa710d0d69e8a276ee03ba12658dbf8266bb3946faf
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous links, including one pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=bond+university+application+form+pdf'. The document body, though partially corrupted, suggests a lure related to a 'bond university application form pdf'. The presence of a link farm and a malicious redirector indicates a strong intent to direct users to potentially harmful content, likely for phishing or malware distribution.

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=bond+university+application+form+pdf In PDF document text
    • http://files.ohswolverinemusic.com/uploads/1/3/0/7/130775707/3885144.pdfIn PDF document text
    • http://files.melaniedaylelauren.com/uploads/1/3/1/3/131382630/a6d885e.pdfIn PDF document text
    • http://files.dianeaoki.com/uploads/1/3/0/7/130740025/3033147.pdfIn PDF document text
    • http://files.bewitchingbotanicals.com/uploads/1/3/0/9/130969034/6335391.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6246/8516/files/muxotaxekujumu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0015/8632/files/lojoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0532/9064/files/31865651276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9587/5993/files/les_types_de_centrales_lectriques.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5650/3707/files/the_middleboro_casebook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0508/3811/files/ranuleginidutinu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9952/9121/files/wepaxufixubebelifaniwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6326/3910/files/mountains_message_to_bears.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6128/8868/files/77868762074.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2518/6466/files/jodalaperumejux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9384/3358/files/86056140252.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4609/2443/files/food_and_beverage_menu_knowledge.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000545a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x545A 5396 bytes
SHA-256: 89f0e5eab21e83479471989178a6646b9187249bf5f4876a941dd5fedff85ec6
font_01_sfnt_off000066a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66A3 10192 bytes
SHA-256: 4c00376cc7491e3308b70fb9dc7ecab932931208b2ad5fffc29df2a75c6df025
font_02_sfnt_off00008924.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8924 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2