Malicious PDF — malware analysis report

Static analysis result for SHA-256 b42588e4596674a9…

MALICIOUS

PDF

47.7 KB Created: 2020-08-03 02:52:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: be44a0aac81e3d488f3fa6d74717b07b SHA-1: a86afecd7dd29b871f295ebcb66f17ebdb0dc1a7 SHA-256: b42588e4596674a9beeb4e578712273f57460587ad3a597c8e6e97afd992675f
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the malicious URL and other benign-looking URLs, suggesting a lure to a malicious site. The primary attack vector appears to be directing users to a malicious redirector.

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=kodi+on+samsung+smart+tv In PDF document text
    • http://files.huttvalleysingers.org.nz/uploads/1/3/2/7/132740665/mudipiboxozuweb.pdfIn PDF document text
    • http://files.jadefernandes.com/uploads/1/3/2/7/132741555/3618295.pdfIn PDF document text
    • http://files.niwotcounseling.com/uploads/1/3/1/6/131606546/e3cb3d2a64399a.pdfIn PDF document text
    • http://files.brandito.net/uploads/1/3/0/8/130814411/9346215.pdfIn PDF document text
    • http://files.h-dmanagement.com/uploads/1/3/0/7/130775085/fevir_kejufebimenisa_zijiluledipo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6248/4383/files/logosolol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4094/8892/files/david_icke_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0792/5654/files/76421279202.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3313/2184/files/rujuzagakidepewuli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9704/6696/files/41797925924.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2050/7546/files/xuwilugamama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3119/7856/files/jaxubobuduputegasewekuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0258/4480/files/14578602780.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4586/3067/files/51590378252.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0346/9221/files/59260186188.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5689/7947/files/59264094414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4273/4237/files/cat_416_backhoe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3074/8055/files/vimofutiwasufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zamujogeve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7015/3113/files/sejifekolamavilid.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_off00007043.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7043 4904 bytes
SHA-256: 7039062150ae19fd70a76384f058557727229a551d9a6aec3a1f723b361874ba
font_01_sfnt_off000080db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80DB 10004 bytes
SHA-256: 3c8e8b8cf569a9996d1963506188a08e322e3839cd2da99b72790df16b1bfb77
font_02_sfnt_off0000a314.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA314 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361