Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccd895831bd90c1c…

MALICIOUS

PDF

42.8 KB Created: 2020-08-21 22:47:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 43b3860cdbda7a43b143b21f2893bfbc SHA-1: 3ff82e7e3a687358279c29c3046e92da0f77c69e SHA-256: ccd895831bd90c1c9c42c6abf1ca3e2f139acbdea10a56d3d650c4996a8e86d3
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a TP-Link router manual. This redirector likely leads to further malicious content or exploits. The document also exhibits characteristics of a link farm, embedding numerous links to other PDFs, potentially for SEO manipulation or to spread malicious content across multiple benign-looking domains. No scripts were extracted, but the primary malicious activity is the redirection to the ttraff.com URL.

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=tp+link+archer+c2+manual In PDF document text
    • http://files.wbabaseball.com/uploads/1/3/1/4/131406604/nixuwadiw.pdfIn PDF document text
    • http://files.spjayaraj.com/uploads/1/3/1/6/131606349/03b034ea6e56a0.pdfIn PDF document text
    • http://files.risingstarstx17u-girlsbasketball.com/uploads/1/3/1/1/131163740/db2bacd29ec9290.pdfIn PDF document text
    • http://files.forventuretravel.com/uploads/1/3/1/0/131069875/299965292a2fd5.pdfIn PDF document text
    • http://files.newellbooks.com/uploads/1/3/0/8/130813797/vapujulo_rajeker_vewidufe.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/1/0432/2328/5928/files/banalofodubafekimetuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9196/7652/files/auditoria_administrativa_benjamin_franklin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/1108/3160/files/cengage_series_maths.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6619/6122/files/generos_literarios_de_la_biblia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5281/0911/files/tajotipapatuposi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3874/3450/files/xosigebepedubagirabe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1004/6621/files/kubofizikozabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4607/5542/files/can_i_tink_lyrics.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_off00006100.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6100 5140 bytes
SHA-256: c6c0c5e1de8c24e919387bd6e6d95ee69a049156cdcbd0b55fbac44cb576410d
font_01_sfnt_off00007240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7240 1704 bytes
SHA-256: 95954010f8092fa84e967356a06435c39535f67ef6169ea9acc74b9f3b4041b2
font_02_sfnt_off00007aba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ABA 10324 bytes
SHA-256: 3ffd7586b64ec8a183dcdb3ae6da9ad09a1112f3c9e1b635bc8b75d2bbbedc35