Malicious PDF — malware analysis report

Static analysis result for SHA-256 d97961904670ff74…

MALICIOUS

PDF

73.3 KB Created: 2020-08-24 20:09:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6731d842047630812c0620d25eee7380 SHA-1: 1ca9d88b3b78a44d2e3a37e7a68f799b53d7733d SHA-256: d97961904670ff74e0887e87380d6f5e64c69939ccafc8389bf44075b8aff8ec
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Manual instalacion chaffoteaux pigma green' and the malicious URL, suggesting a lure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the presence of a link to known malicious infrastructure. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many pointing to Shopify domains, likely for SEO manipulation or to host further payloads. The primary malicious IOC is the redirector URL.

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=manual+instalacion+chaffoteaux+pigma+green
    • http://mivedotu.scenesofvirtue.com/uploads/1/3/2/8/132815806/3824681.pdf
    • http://files.fitnesswithdel.com/uploads/1/3/2/6/132695306/dorek.pdf
    • http://jetunax.calaverasarts.org/uploads/1/3/2/7/132741100/3500105.pdf
    • https://cdn.shopify.com/s/files/1/0462/7981/9413/files/portable_adobe_audition_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/7727/1716/files/roxilupugovutukazemojipe.pdf
    • https://cdn.shopify.com/s/files/1/0437/4737/7301/files/vovitikeviw.pdf
    • https://cdn.shopify.com/s/files/1/0429/1395/6006/files/84910972468.pdf
    • https://cdn.shopify.com/s/files/1/0432/5185/9616/files/jivelowegavafa.pdf
    • https://cdn.shopify.com/s/files/1/0429/7634/6266/files/98423253961.pdf
    • https://cdn.shopify.com/s/files/1/0437/4616/4897/files/kexafupoxupomefewon.pdf
    • https://cdn.shopify.com/s/files/1/0428/6673/7311/files/povogutuwixa.pdf
    • https://cdn.shopify.com/s/files/1/0465/1863/2598/files/71193542278.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d49d.bin
95fbc3fbde71cb2c13448b8f58bcfbc37216d8dcb75cadb8c57f4bb4d0fddef1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD49D 5384 bytes
font_01_sfnt_off0000e6c8.bin
0e1307791b1543295630c4cac2ad9f4efee5070292327b111b6823115d7925b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE6C8 10484 bytes
font_02_sfnt_off00010a45.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A45 4324 bytes

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