Malicious PDF — malware analysis report

Static analysis result for SHA-256 67560097cffd71c5…

MALICIOUS

PDF

43.1 KB Created: 2020-08-02 20:49:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e588445d85974510e27ddd67d2c9c20 SHA-1: 27c830970eae053f0cefd6e0d402609f53fea03c SHA-256: 67560097cffd71c5f175271f68c41a1c18fed4c8cd68deafb4706dff0abd4009
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

This PDF document was flagged by multiple heuristics as malicious, including a critical finding for linking to known malicious redirector infrastructure. The document contains a mass external PDF link farm, with one specific URL identified as a redirector. The presence of numerous links suggests an attempt to distribute malicious content or engage in SEO manipulation for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=black+demon+task+osrs
    • http://files.sullivanandnolan.com/uploads/1/3/1/8/131856125/405388a.pdf
    • http://files.quentinguitar.com/uploads/1/3/0/7/130775229/608da15436f214.pdf
    • http://files.catchingnumbers.com/uploads/1/3/1/4/131438464/a765a.pdf
    • http://files.isaiahsixeight.org/uploads/1/3/0/9/130969545/livar.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0437/0595/8565/files/18157805906.pdf
    • https://cdn.shopify.com/s/files/1/0431/2537/5125/files/6973297054.pdf
    • https://cdn.shopify.com/s/files/1/0429/2568/6951/files/batekokugiwax.pdf
    • https://cdn.shopify.com/s/files/1/0439/1341/2760/files/28259402255.pdf
    • https://cdn.shopify.com/s/files/1/0439/4899/8811/files/how_to_mod_skyrim_ps3_without_pc.pdf
    • https://cdn.shopify.com/s/files/1/0436/4566/5433/files/9397252170.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/77636621448.pdf
    • https://cdn.shopify.com/s/files/1/0429/1795/3702/files/94968697007.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kumug.pdf
    • https://cdn.shopify.com/s/files/1/0427/9923/5228/files/kotexilobimijepemobed.pdf
    • https://cdn.shopify.com/s/files/1/0431/9661/2768/files/37402255716.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61086590007.pdf
    • https://cdn.shopify.com/s/files/1/0430/1327/5811/files/cateye_strada_cadence.pdf
    • https://cdn.shopify.com/s/files/1/0432/5313/7576/files/vesufopatabikiwefis.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_off00006b76.bin
225eea190c247c66de2a003bc802856358f2797c1621a97c2a17df94df757e58		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B76 5200 bytes
font_01_sfnt_off00007d0e.bin
95a6bae370734679f96769fac86269d414f4c84a009f48814bcd42184489aac9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D0E 10128 bytes

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