Malicious PDF — malware analysis report

Static analysis result for SHA-256 d14002fc15f97327…

MALICIOUS

PDF

42.3 KB Created: 2020-08-10 22:23:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e3cbcf25a3eeb4dabccca0d91cba7942 SHA-1: d2368695d2c02758d4cc3943805b48a5a787e2e6 SHA-256: d14002fc15f97327616f79f12c0df38956f50b45cc51912c26abe9f95929cb1e
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=speak+english+like+an+american+pdf+free'. This URL is embedded within the document body, suggesting a lure to trick users into downloading content. The presence of a large number of external PDF links, many hosted on Shopify, further indicates a link farm or SEO poisoning tactic. The ML classifier also strongly flagged this PDF as malicious.

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=speak+english+like+an+american+pdf+free In PDF document text
    • http://files.iamlisteningtoyou.com/uploads/1/3/2/3/132303410/d47a74b24.pdfIn PDF document text
    • http://zanof.kyler-leroux-coaching-portfolio.com/uploads/1/3/1/4/131437689/nezifozeminol.pdfIn PDF document text
    • http://files.vcgallery.org/uploads/1/3/1/8/131856381/rokererukirejakifu.pdfIn PDF document text
    • http://files.playbyplaytheatre.org/uploads/1/3/1/3/131398430/6e6ba694fb.pdfIn PDF document text
    • http://noronowu.poseidonwater.com/uploads/1/3/0/8/130814328/5940181.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/1/0428/9835/8432/files/53607129813.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0383/8615/files/fallout_4_speed_command.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4914/7816/files/tuzusumajaditojapewezatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8520/8483/files/discrete_mathematics_and_applications_4th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4642/8059/files/kuxoxutugegovudorigiruva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3867/1010/files/3453955736.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0911/3242/files/advanced_sql_queries_examples_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9171/2405/files/pedevigu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9683/4212/files/25961291328.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9245/8139/files/63480147661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8706/9348/files/42802070062.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_off000051cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51CF 5336 bytes
SHA-256: dcdfc087a21cd676a62e72d679e975098db6e0d8ad42cb9bc9c1cfd8492802fc
font_01_sfnt_off000063b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63B6 13436 bytes
SHA-256: f4ddf91757bd9deb811196fec65255afe6f5e844c6884f288cce5ab673e83612
font_02_sfnt_off00008e01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E01 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e