Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f24601efbc2bf36…

MALICIOUS

PDF

42.7 KB Created: 2020-08-06 17:03:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 98624dac1af65351bf2dc9d4a22f1f4d SHA-1: 5a1b0c465666d6e4f4c8f85ba01e0d7fe207cad4 SHA-256: 6f24601efbc2bf36c2b4da42b2971624c9794e0ae27515b0b3b27ac66c743147
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to redirector infrastructure, including a primary link to 'ttraff.com'. This suggests a phishing or scam attempt disguised as educational material. The ML classifier strongly indicated maliciousness, and the presence of a malicious redirector URL supports this. No scripts were extracted, but the document's structure and embedded links are indicative of a social engineering attack.

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/wb?keyword=interactive%20addition%20worksheets In PDF document text
    • http://files.printing-plant.com/uploads/1/3/0/8/130874678/jilej_mojufotov_telisa_fevemubawaxamej.pdfIn PDF document text
    • http://files.vivastrangeboutique.com/uploads/1/3/1/8/131856317/b5b4276b.pdfIn PDF document text
    • http://files.mannykrakowski.info/uploads/1/3/0/7/130739309/26ef0edfb.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/1/0438/2133/4688/files/moxinijoxes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7991/6963/files/tosibenaxeleloxaxiloku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4146/5244/files/46951794493.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/97589159167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0737/6542/files/arduino_projects_with_code_and_circuit_diagram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6178/6262/files/airtel_dth_new_plans_2020_list_price.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2580/0087/files/tawopofojisakeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7141/3160/files/belorota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3075/8054/files/may_bulliten_boards.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3464/8482/files/26079200338.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005cc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CC4 4936 bytes
SHA-256: 2471d261cdb3a2f9f9bc1c25e674d3fcf63bb63fda658e74e4fbcdf8da61031c
font_01_sfnt_off00006d89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D89 10056 bytes
SHA-256: 9da3160677025e9d152639fac9bb8990b81c6b4a17cce2ee656aa2472788648e
font_02_sfnt_off00008fec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FEC 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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