Malicious PDF — malware analysis report

Static analysis result for SHA-256 50bc591121ccba46…

MALICIOUS

PDF

55.5 KB Created: 2020-08-22 22:01:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 485f42a4ea4014468b0317ab181365f4 SHA-1: 934638c7387ef6221cd632b174e972d7ab39f6da SHA-256: 50bc591121ccba46075a96683c162fea15f1211b8dc1bcc1421036cb2c6f11ed
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, many of which point to external PDF files hosted on various domains, including Shopify. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure via the URL 'https://ttraff.cc/pify?keyword=angular+formbuilder+disabled'. This suggests the document is part of a link farm or SEO manipulation scheme, likely intended to drive traffic to malicious content or to obscure the true destination of the malicious links. The presence of numerous links and the identified malicious redirector strongly indicate a malicious intent, though the exact payload is not directly executed by this 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.cc/pify?keyword=angular+formbuilder+disabled In PDF document text
    • http://xikilo.hunterwrestling.com/uploads/1/3/2/7/132740930/zatanap.pdfIn PDF document text
    • http://files.troyfoundation.org/uploads/1/3/1/4/131453267/donax.pdfIn PDF document text
    • http://files.johnjzelenski.com/uploads/1/3/2/7/132740580/mutejexadapuxodan.pdfIn PDF document text
    • http://dijupo.preciouscollective.com/uploads/1/3/1/1/131164250/motegena_poxajaj_wubeladapolelup.pdfIn PDF document text
    • http://pivovu.gordonstounartandphotography.com/uploads/1/3/0/7/130738948/mowazeworat.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/1/0428/2885/7503/files/darejurajufovotebeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1540/5725/files/sudodominikisovas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5031/1579/files/42802222887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5656/1318/files/57658229883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6509/5845/files/9118731539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8424/2325/files/77239808576.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/heap_implementation_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/63537272249.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7997/5590/files/rexekivukunemi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7278/1478/files/contrastive_analysis_james.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5279/2982/files/prova_de_auditor_fiscal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8849/5270/files/mitavijuxodorunigup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4083/2678/files/75504075826.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007140.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7140 5356 bytes
SHA-256: 3cb42b572d49e026c1b609537016ec25a2b60eb3a2cd0e8c857f99deb6bb5f54
font_01_sfnt_off00008356.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8356 2108 bytes
SHA-256: 82f2f513f1609d88471d7e2805e55c29bb7c0a3e474cf3bb86a7a6eec27b620e
font_02_sfnt_off00008cfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CFD 13708 bytes
SHA-256: efe18729d27014abd8d7a5d4bee2bebd2bfc5365e638d9d4af532b85489b7454
font_03_sfnt_off0000b910.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB910 16840 bytes
SHA-256: 4b5c7613666b158bb9c1cbc28f0d3af4d3fe2526b699abea9ef56a4c5171584f

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