Malicious PDF — malware analysis report

Static analysis result for SHA-256 dffa3095d1c58cf4…

MALICIOUS

PDF

35.1 KB Created: 2020-08-14 16:09:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bb6bf87518bf525a4f209a1f5927de64 SHA-1: a160f162b4abb8cff9d3bf938d2e69869fdfd176 SHA-256: dffa3095d1c58cf4707ffacdf82b6b07f65d20f7d2e8f3a0a3ac144ad357c6f5
194 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs. One prominent URL, 'https://ttraff.com/pify?keyword=musicas+ballet+infantil', is identified as a malicious redirector. The majority of the links point to Shopify-hosted PDFs, suggesting an attempt to obscure the malicious infrastructure or leverage legitimate platforms for hosting. 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.com/pify?keyword=musicas+ballet+infantil In PDF document text
    • http://zikome.thejazzyjewelzstudio.com/uploads/1/3/1/0/131070590/343263.pdfIn PDF document text
    • http://files.pureinspirationinc.com/uploads/1/3/2/7/132710683/fasebi.pdfIn PDF document text
    • http://xukoxipol.dancingmindfulness.com/uploads/1/3/1/4/131453674/6513684.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/1/0433/3414/0056/files/string_to_lpcwstr.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3340/2266/files/funny_dirty_riddles_clean_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8058/1274/files/8681393927.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3848/2332/files/zero_two_osu_skin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7077/4677/files/endocrine_system_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8800/2710/files/tavabadenup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2131/9839/files/alter_ego_3_b1_cahier_d_activits_corrige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/lemojafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9241/4369/files/how_to_block_people_on_spotify.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9726/7112/files/emerson_tv_manual.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 2

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_off00004376.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4376 4924 bytes
SHA-256: f644e0357ae7cb714f725b93ddb9577739aace6250cd3649f1dc2451dcab638d
font_01_sfnt_off0000544f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x544F 13784 bytes
SHA-256: acbd11e23eb05684274bf5a6d51d1cc2777ef428c25beaedd20119169365b430

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