Malicious PDF — malware analysis report

Static analysis result for SHA-256 75fc96c03fc1e5dc…

MALICIOUS

PDF

40.5 KB Created: 2020-08-12 02:33:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c7b2259c270c8fb0a1e9e41319d4b32f SHA-1: 72a419d590ac64956714c597bede34f66c7abc20 SHA-256: 75fc96c03fc1e5dc3ddf241030a43ae3bbcfe7a667f20a07cd68d417fb090769
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of external links, many of which point to a redirector service (ttraff.cc). The presence of a link farm and a redirector strongly suggests an attempt to lure users to malicious websites, likely for phishing or malware distribution. The ML classifier also flagged this PDF with high confidence.

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.cc/pify?keyword=beatriz+sarlo+borges+pdf In PDF document text
    • http://files.creativemotiononline.com/uploads/1/3/1/3/131381539/b6257050d854.pdfIn PDF document text
    • http://files.playbyplaytheatre.org/uploads/1/3/1/3/131398430/6e6ba694fb.pdfIn PDF document text
    • http://pevovudep.mycphoa.com/uploads/1/3/2/7/132740805/nijuf.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/1/0430/2218/8701/files/lefevekasufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2515/4716/files/job_interview_conversation_between_interviewer_and_interviewee.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6865/1680/files/57178476923.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2469/4942/files/laxubefelafigozekine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3867/7924/files/37037312399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8201/4108/files/bohat_tta_chud_tta_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7331/5740/files/introduction_to_kinesiology_4th_edition_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8171/8173/files/dijoxamapokenubevag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0401/0389/files/88804006305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9007/6067/files/womozumuwepowobula.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_off00005f73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F73 5448 bytes
SHA-256: 9603dec4f94ebe244c231c138a1a7cfde8cc9d718e138f22ce49e9ccf2acf137
font_01_sfnt_off00007209.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7209 10664 bytes
SHA-256: db9939ef2df2f1559e058e1611af9552a8d181e5b2502ece43c3279f090c3743

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