Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba475bf86e4b1d72…

MALICIOUS

PDF

44.9 KB Created: 2020-08-11 18:12:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7411a927584b29f47d8e8ddf9a063d50 SHA-1: ee36f1e8732fa689311755ed5a3ddffc326b3b6b SHA-256: ba475bf86e4b1d72bc018f416fa28d9f9dad78a43682ab1b3b8dbaaa093d84d4
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=basel+convention+on+hazardous+waste+pdf', suggesting a lure to a malicious site. The presence of multiple Shopify URLs, some marked as benign and others unknown, indicates a link farm strategy to obscure the true malicious destination. No scripts were extracted from this sample.

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.com/pify?keyword=basel+convention+on+hazardous+waste+pdf
    • http://files.shaindeesmakeup.com/uploads/1/3/0/7/130739444/8812125.pdf
    • http://muxirimi.capehookdesigns.com/uploads/1/3/0/8/130874493/rodugajuvu.pdf
    • http://files.poketspits.com/uploads/1/3/1/4/131437834/cd60cc.pdf
    • http://files.chemungvalleyecho.com/uploads/1/3/1/4/131453718/979191.pdf
    • https://cdn.shopify.com/s/files/1/0430/6731/0231/files/24808094703.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vabagibad.pdf
    • https://cdn.shopify.com/s/files/1/0427/8606/2495/files/takonivifobozajo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3687/6706/files/problems_facing_aviation_industry_in_nigeria.pdf
    • https://cdn.shopify.com/s/files/1/0432/9363/8816/files/6171292183.pdf
    • https://cdn.shopify.com/s/files/1/0428/7417/5644/files/capacitive_touch_sensor.pdf
    • https://cdn.shopify.com/s/files/1/0429/7274/1791/files/pudawidamijutilulodeg.pdf
    • https://cdn.shopify.com/s/files/1/0428/9314/8313/files/lujopunazimot.pdf
    • https://cdn.shopify.com/s/files/1/0438/3758/7613/files/nijaxulubamamavogimux.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_off00007099.bin
59596a0f7802559867c02adb7040b648d7ac19186452d6b6478d5b6fad8c8d1b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7099 5496 bytes
font_01_sfnt_off00008355.bin
65f090b8cf6507105fcabb634dc34b9ff37b86a217b80630bb1b17618e707c1c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8355 10388 bytes

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