Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcc3ae828e6d067d…

MALICIOUS

PDF

46.6 KB Created: 2020-08-14 05:01:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bbf87e1e40cb0f84791dd6c5f7c87db9 SHA-1: e2d615426c29f91bce6393cb33c400314ec52048 SHA-256: dcc3ae828e6d067de8dbfdbccf2117517b8d02a8f14b7576da1e70401438b19a
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, specifically pointing to 'https://ttraff.cc/pify?keyword=hydra+boss+guide+osrs'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. Additionally, the PDF was flagged by an ML classifier and contains a large number of external links, suggesting a link farm or SEO poisoning tactic to distribute malicious content. No scripts were extracted, but the presence of the malicious redirector is sufficient evidence of malicious intent.

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=hydra+boss+guide+osrs In PDF document text
    • http://gofajasis.xclusivelashesllc.com/uploads/1/3/1/8/131871721/1968caea717ee.pdfIn PDF document text
    • http://waxivigi.fabshop104.com/uploads/1/3/0/7/130739783/1615971.pdfIn PDF document text
    • http://files.rowseyforthehouse.com/uploads/1/3/0/9/130969999/vagotavuretukuduj.pdfIn PDF document text
    • http://files.kenmeyerjr.com/uploads/1/3/1/0/131071062/lavesed.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/1/0431/3631/9639/files/administracion_financiera_personal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0653/3525/files/54934895253.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/17810153535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7212/6117/files/baka_to_test_to_shoukanjuu_light_novel_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1329/9620/files/millennium_development_goals_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5827/5238/files/60719883072.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8679/1334/files/wow_cooking_guide_vanilla.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5637/9557/files/gangliosidos_funcion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1553/6793/files/6900738724.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5719/1843/files/lista_de_alimentos_ricos_en_magnesio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7546/0517/files/doing_business_2020_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5462/7993/files/92019063767.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D71 5164 bytes
SHA-256: 55b06b8839b644ab1bb83857b461b25883285b3d8f458f81f261e02980bd5d84
font_01_sfnt_off00007f0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F0D 14820 bytes
SHA-256: b2fad2bf613e2051f0c088fa63d37d07300bf01b134c04a8163b7675966d2e25