Malicious PDF — malware analysis report

Static analysis result for SHA-256 14b75ddf422f2fbb…

MALICIOUS

PDF

42.0 KB Created: 2020-08-11 21:00:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0267f17eb81e3606d6d15147a8e689fb SHA-1: 5fb484abd66e4770b52bb1a2fc8a5dde7bd77430 SHA-256: 14b75ddf422f2fbb87b68b54df6e219b1193f331239231c4edacce6a205f0dad
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. The document body, though obfuscated, includes the same malicious URL, suggesting an attempt to lure the user to a potentially harmful site. The ML classifier strongly indicates maliciousness, and the presence of multiple PDF link farm heuristics confirms the suspicious nature of the embedded links.

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/wb?keyword=diagnostic%20pathology%20cytopathology%20mody%20pdf In PDF document text
    • http://files.cantormalachi.com/uploads/1/3/1/4/131409884/zivun-sevafuf-tedupiwomiwati.pdfIn PDF document text
    • http://files.conresnet.org/uploads/1/3/1/1/131164273/novig_rakalibivabeto_vusoxufugubafa_xatawuwa.pdfIn PDF document text
    • http://files.thedomainhobart.com/uploads/1/3/1/3/131380850/596616.pdfIn PDF document text
    • http://tonisog.annebeancreative.com/uploads/1/3/1/4/131407089/zezepobak.pdfIn PDF document text
    • http://files.longtengusainc.com/uploads/1/3/2/6/132695190/dadug-pazuvulil.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/1/0437/9095/8752/files/chng_trnh_c_file_l_g.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1190/7488/files/invitation_to_computer_science_8th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7020/8662/files/24879582578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6350/1222/files/segagem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5654/5433/files/39043415902.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4466/6529/files/bolijadeka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3729/4754/files/carrier_thermostat_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2144/2977/files/organizao_do_ambiente_de_trabalho.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5752/1574/files/95204128535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4141/4552/files/38181991382.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9897/1038/files/zokor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5467/7668/files/zegasepesaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dotalufakelani.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 7

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_off00006025.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6025 5572 bytes
SHA-256: 5c9ad36a2bbf56de6f6fa899acc4c69735adea8fa2a81110aec15abc7d0b32bd
font_01_sfnt_off000072ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72FF 12656 bytes
SHA-256: 3dd0ef168f4c6435b5bffd6ef4eaf1a9adad3af4e364f5ba704196ff3e322fbc

Open this report in the interactive analyzer, or submit your own file for analysis.