Malicious PDF — malware analysis report

Static analysis result for SHA-256 b715be3d696849b4…

MALICIOUS

PDF

38.3 KB Created: 2020-08-19 10:31:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a34121cdbab233b43df4bc1a12f4d09d SHA-1: fdfceb6acf837339a688cde449d45576826af0b0 SHA-256: b715be3d696849b4cc6c83780eeb69c361417b39d04b1a175a7651d9c2f83413
150 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious infrastructure, disguised with a seemingly innocuous title. The heuristic firings indicate this is a malicious redirector and a link farm designed for SEO manipulation. The ML classifier strongly supports the malicious nature of the PDF. The primary IOC is the redirector URL, which is likely used to funnel victims to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=lip+sync+battle+rules+and+guidelines
    • http://nirezop.21cclcdm.com/uploads/1/3/1/6/131606490/8026298.pdf
    • https://cdn.shopify.com/s/files/1/0450/2369/0916/files/gopefekubumate.pdf
    • https://cdn.shopify.com/s/files/1/0434/5672/5153/files/58351973761.pdf
    • https://cdn.shopify.com/s/files/1/0454/8037/8518/files/aladdin_ka_chirag_story_in_urdu.pdf
    • https://cdn.shopify.com/s/files/1/0436/3865/3086/files/75513241993.pdf
    • https://cdn.shopify.com/s/files/1/0434/1828/8277/files/4900017508.pdf
    • https://cdn.shopify.com/s/files/1/0434/4571/5109/files/28591517658.pdf
    • https://cdn.shopify.com/s/files/1/0430/5823/3493/files/vetassess_assessment_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0434/7248/6566/files/pilasifugasowotinedur.pdf
    • https://cdn.shopify.com/s/files/1/0432/9930/7688/files/2019_editable_monthly_calendar_templates.pdf
    • https://cdn.shopify.com/s/files/1/0428/6555/7670/files/chaupai_sahib_path_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0429/5737/3589/files/10530871087.pdf
    • https://cdn.shopify.com/s/files/1/0434/8909/9938/files/payday_2_pirate_perfection.pdf
    • https://cdn.shopify.com/s/files/1/0434/3506/5510/files/conduction_mechanism_of_conducting_polymers.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000567b.bin
91a70adc0a39481b7b9ece618c020e42f0c489502cf427cb9cd211254fced3ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x567B 5424 bytes
font_01_sfnt_off000068ef.bin
37560262fe266c82b5456372a339b47dfa6e8ae0b0b0c36d0ba158b5bccf61b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68EF 10432 bytes

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