Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d79663cee24e9d0…

MALICIOUS

PDF

53.5 KB Created: 2020-08-09 19:18:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6d41c415dda15a6cb7d97f9f9ff66e18 SHA-1: d7cb4ba26aad104e86e8503373d0b74e99c7458b SHA-256: 3d79663cee24e9d0a1fd769bb49b7346003547ca89e739a372051168dd36b464
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical redirector link pointing to ttraff.com, which is known malicious infrastructure. The document body, though heavily obfuscated, contains the same search query as the malicious URL, suggesting a lure to trick users into clicking the link. The primary malicious URL is https://ttraff.com/pify?keyword=abirami+anthathi+pathigam+lyrics+in+tamil+pdf.

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=abirami+anthathi+pathigam+lyrics+in+tamil+pdf In PDF document text
    • http://files.wcpreschoolva.com/uploads/1/3/1/0/131070351/dutaxobizidifi.pdfIn PDF document text
    • http://files.huntsvilledecks.com/uploads/1/3/0/7/130776591/zazepejuwof_nexudozorudo_nulajapovagelom.pdfIn PDF document text
    • http://files.thetimewarpgaming.com/uploads/1/3/0/8/130874012/8122470.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/1/0440/2518/4421/files/61849559499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4411/9462/files/tanat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1437/9930/files/apsrtc_student_bus_pass_application.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8181/7494/files/32355677872.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9612/1248/files/fidemavulesedizewom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wemulaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0668/7389/files/rebekegatojetubogabex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7525/5968/files/86350875814.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0071/7727/files/81178499351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0223/8875/files/pmay_offline_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3056/9382/files/52725154747.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 5

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_off00008dd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DD4 5800 bytes
SHA-256: aad1085f923ba1879d684b561f5123e459ce9c60e219d3d557b26dd2ec026db6
font_01_sfnt_off0000a171.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA171 11316 bytes
SHA-256: 555c05336a58b9f273ca38501d839624514f1a3997011e105ce5727da53a00c8

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