Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e14a70435491e39…

MALICIOUS

PDF

40.2 KB Created: 2020-08-20 03:40:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cac45b3fc2c31f3e8cd899edfd9c927f SHA-1: 6e9834cbdc8e246492ef20e822f2cb0474d94977 SHA-256: 9e14a70435491e39b524bc1266c6b5f4aa197f710122664e2260c55d5bd308e3
194 Risk Score

Malware Insights

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

The PDF document contains a prominent link disguised as a lure for 'Soundcloud premium apk ios'. This link directs to a known malicious redirector, ttraff.ru, which is likely intended to lead the user to a malicious download or phishing page. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to various PDF files, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed for malicious redirection.

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=soundcloud+premium+apk+ios In PDF document text
    • http://xiduzal.afroverse.org/uploads/1/3/1/4/131438216/limen_wikavimekeko_wazujapazuvit.pdfIn PDF document text
    • http://gisivas.lowercreekcreations.com/uploads/1/3/0/8/130813604/zuseziro_kesasewokij_kowizipugijen.pdfIn PDF document text
    • http://files.sopoochtraining.com/uploads/1/3/2/8/132815961/kawivibugakovuj.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/1/0431/5031/1581/files/kaduzasilazelumep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8277/6727/files/sakeguvunewewutikalog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4024/2840/files/71295836022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/piwugusotar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8003629611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6656/2462/files/drainage_basin_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8561/0654/files/html_tags_and_their_uses.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0197/0837/files/folizuxuzeje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7306/0520/files/13398559645.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5331/8298/files/12738704398.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3161/7945/files/65003990522.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 8

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_off00005e25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E25 5384 bytes
SHA-256: e305923cf53c7b0ac628ea7d3ef84be9c84800c8f45c11fa56e7dc08f3a733a2
font_01_sfnt_off00007055.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7055 10524 bytes
SHA-256: 4866f6d24a7dc151443b9c957f570c30736d50c17cf150c1a398d2b27b196f9f

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