Malicious PDF — malware analysis report

Static analysis result for SHA-256 2148d05a14054357…

MALICIOUS

PDF

38.1 KB Created: 2020-08-23 10:12:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0490b8c0c671919e15f754ed08ef9081 SHA-1: 16ff2f6c02a769a64b1a06a4181b54591b06454d SHA-256: 2148d05a14054357f32db8c38282ad8030350e14503a7d5c3b08487ad3e25ab2
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=lagu+aaaa+sad+song', is likely intended to redirect the user to a malicious site. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many pointing to Shopify domains, suggesting an attempt to manipulate search engine results or distribute content broadly. The ML classifier 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.cc/pify?keyword=lagu+aaaa+sad+song In PDF document text
    • http://kabegafod.northvicgps.com/uploads/1/3/0/7/130740117/nuwuz.pdfIn PDF document text
    • http://files.beitnachum.org/uploads/1/3/1/4/131483253/ximegigojepirez_rabisosip_suwupisi.pdfIn PDF document text
    • http://files.southlandvs.com/uploads/1/3/0/7/130776735/4fb8274ee8089.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/1/0432/8433/2710/files/equidad_de_genero_en_colombia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2550/6208/files/b._com_auditing_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7447/7473/files/57697572838.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4077/5064/files/josoxifagevoxisuvela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9029/7507/files/16577756603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3730/2679/files/analog_discovery_2_reference_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5746/3964/files/85884439161.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2666/8952/files/bamuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0898/9096/files/najasifipiwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2204/6616/files/zemizefonuxebejazarod.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_off00005913.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5913 4808 bytes
SHA-256: 8b0c7e4724377846f52e8916a7a2df51ccc30d3641edb61c601c110fd9f034b1
font_01_sfnt_off00006982.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6982 10180 bytes
SHA-256: d134cbf13fe4a1e332bb5aa35e59601b6df784fb46dad777712274d65c5baa5e

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