Malicious PDF — malware analysis report

Static analysis result for SHA-256 26a93e426695c577…

MALICIOUS

PDF

42.1 KB Created: 2020-08-02 16:44:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a9273289ab059e4736e839de1d23e7fe SHA-1: 175b403ebad566f0b8f4712bce19fe7017cd1f1b SHA-256: 26a93e426695c577f0e7560c6dd01d33fa7ebf0a1e17be1678358590f8f11700
150 Risk Score

Malware Insights

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

The PDF contains a link farm pointing to numerous external PDFs hosted on Shopify, a common tactic for SEO poisoning and distributing malicious content. One of the primary links, 'https://ttraff.ru/pify?keyword=ti+ba+ii+plus+professional', is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other Shopify links, suggesting an attempt to drive traffic to malicious infrastructure. No scripts were extracted, but the PDF structure and linked URLs strongly indicate a malicious intent, likely for phishing or malware delivery.

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=ti+ba+ii+plus+professional
    • http://files.funinstruments1.com/uploads/1/3/1/3/131378990/64d7d20f0c.pdf
    • http://files.bonnybunting.com/uploads/1/3/0/9/130969657/019cdd6d0b0351.pdf
    • http://files.torontoacademyofacting.net/uploads/1/3/1/3/131398222/mikabijalatu_mujizugomuso.pdf
    • https://cdn.shopify.com/s/files/1/0430/4342/2359/files/nisopowawikofokexemawop.pdf
    • https://cdn.shopify.com/s/files/1/0428/2299/2028/files/21424274512.pdf
    • https://cdn.shopify.com/s/files/1/0439/0807/1576/files/12752872440.pdf
    • https://cdn.shopify.com/s/files/1/0432/5244/9435/files/ruvaxozisasazodub.pdf
    • https://cdn.shopify.com/s/files/1/0433/9240/1573/files/1273633397.pdf
    • https://cdn.shopify.com/s/files/1/0430/4447/0945/files/50836343387.pdf
    • https://cdn.shopify.com/s/files/1/0434/4843/4840/files/tizib.pdf
    • https://cdn.shopify.com/s/files/1/0431/2537/5125/files/jukuxawikefaxutaguwibubo.pdf
    • https://cdn.shopify.com/s/files/1/0436/2734/8121/files/innova_3100_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/4462/5822/files/33948971670.pdf
    • https://cdn.shopify.com/s/files/1/0432/0657/4240/files/80493156949.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_off0000641b.bin
ea465f5f78cda48cb1f3b39c3822054cd2ed9bcbd6ab57f0a81dc53358d59a93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x641B 4984 bytes
font_01_sfnt_off00007516.bin
992c3d855e2f2718166e1a86fc995c92c494b754adbc94c360d3243abe511baf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7516 11020 bytes

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