Malicious PDF — malware analysis report

Static analysis result for SHA-256 717ef05df86330c7…

MALICIOUS

PDF

48.1 KB Created: 2020-07-29 11:35:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4476e4a28647473182b85164ef58cc77 SHA-1: b0c1339fe5fbcaaeabd3e8cf89905c120f25efc3 SHA-256: 717ef05df86330c7f6fb682cb4f514b7e07142990f366d3e62c5dfcf15b1b0a5
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, with one identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a link farm, suggesting an attempt to manipulate search results or distribute malicious content. The presence of an embedded URL and the 'ML_NYX_PDF_MALICIOUS' flag further support a malicious intent, likely for phishing or malware delivery.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.ru/pify?keyword=who+malaria+treatment+guideline+pdf
    • http://files.drkaylee.us/uploads/1/3/1/8/131871648/5238261.pdf
    • http://files.jazzstylez.com/uploads/1/3/1/3/131379213/daguvaze_nijitakulu_waxabedepuz_kukodawuridaj.pdf
    • http://files.carlykade.com/uploads/1/3/0/7/130775145/gajivikatebuma.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/0201/9487/files/vogeruxizigabosivadob.pdf
    • https://cdn.shopify.com/s/files/1/0432/2630/0575/files/wiponiza.pdf
    • https://cdn.shopify.com/s/files/1/0430/8166/2628/files/73857386073.pdf
    • https://cdn.shopify.com/s/files/1/0427/7148/0742/files/liwesokiwozepirid.pdf
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/rikulolorebijin.pdf
    • https://cdn.shopify.com/s/files/1/0434/6567/0806/files/9775792961.pdf
    • https://cdn.shopify.com/s/files/1/0436/1401/1555/files/40196551739.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85755015361.pdf
    • https://cdn.shopify.com/s/files/1/0437/5016/2583/files/topesu.pdf
    • https://cdn.shopify.com/s/files/1/0440/9848/6424/files/fapuwotekena.pdf
    • https://cdn.shopify.com/s/files/1/0429/8915/8554/files/23540814090.pdf
    • https://cdn.shopify.com/s/files/1/0433/8106/3838/files/42062689603.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007edf.bin
8cc242cc6bab1117cd46b7b3071644a5347bb4c9f9fe71b8f6a13fca8b2370c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EDF 5172 bytes
font_01_sfnt_off00009053.bin
983bef21f6cf381600c3959e574206bd4108d50da5c205d2a1cd31324f7e6c46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9053 10048 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.