Malicious PDF — malware analysis report

Static analysis result for SHA-256 983c733b07f0b38a…

MALICIOUS

PDF

51.3 KB Created: 2020-08-19 12:23:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a439d7acf4794416500a3a2c023f125b SHA-1: bed859a2ae0dc22b78df06b88db7f95edfa935ab SHA-256: 983c733b07f0b38a3bbf14f35eba6498fcaa7c56562a2eaf71f0b7c577e8d132
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF files hosted on various domains, including a redirector at ttraff.com. This indicates a link farm or redirection strategy designed to obscure the ultimate destination. The primary malicious link identified is https://ttraff.com/pify?keyword=magistrates+sentencing+guidelines+drink+driving, which is flagged as a malicious redirector.

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=magistrates+sentencing+guidelines+drink+driving In PDF document text
    • http://files.newlifeagspanishfort.com/uploads/1/3/0/9/130969621/zaxatixiludalu.pdfIn PDF document text
    • http://files.rightagri.com/uploads/1/3/1/1/131164009/9657356.pdfIn PDF document text
    • http://files.mo-resin.com/uploads/1/3/1/3/131379828/kepunisufik_tapufajelugujex_farafamuba.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/1/0434/3654/0056/files/bezewosimixodosuvonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2549/3150/files/caries_dental_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9147/7159/files/78042249210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4626/3201/files/84424765321.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1605/1112/files/extent_report_is_broken_in_jenkins.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3251/8555/files/75016137152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2681/5895/files/53936023607.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/8064/1699/files/wuxevalopimadujukowof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3921/9099/files/zebazogamulerobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6497/4742/files/bopuwexuxoboxixevewezawog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2965/0843/files/actor_jeeva_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7908/1894/files/nulisenofekug.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008a68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A68 5236 bytes
SHA-256: f422fb5dd9aad399f2b0e6031a22858ed6d7b160091fe497ca24cf2f907e8576
font_01_sfnt_off00009c4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C4E 10544 bytes
SHA-256: f7b2b07ee417d75c09ce26fa412ad2feb33561f5eadc02c3fbb998a37c709df0

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