Malicious PDF — malware analysis report

Static analysis result for SHA-256 20386a8ae565ec31…

MALICIOUS

PDF

42.5 KB Created: 2020-08-16 01:00:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7267129d09ba246ce00b3f548d1fce73 SHA-1: a36e3665933b6f17535fd6ae35074f551121d2a3 SHA-256: 20386a8ae565ec3180285ff0fb0c4a7618a42a0137b98b0dfe748f342d2b320d
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to Shopify domains, suggesting a link farm. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely the primary malicious payload delivery mechanism. The document body contains garbled text but includes the malicious URL, reinforcing the link farm and redirector attack pattern.

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.cc/pify?keyword=batman+the+dark+knight+movie++300mb
    • http://files.garjones.com.au/uploads/1/3/1/4/131437319/vituferelawaze.pdf
    • http://mosima.spotlitekustomaccessories.com/uploads/1/3/1/4/131482975/64a808313.pdf
    • http://wibaf.cotwholesale.com/uploads/1/3/1/6/131637419/moxufovopu_zadudoda.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vexib.pdf
    • https://cdn.shopify.com/s/files/1/0430/2651/4077/files/pdf_acrobat_reader_free_download_for_windows_7.pdf
    • https://cdn.shopify.com/s/files/1/0429/1310/4035/files/99621449232.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13578549785.pdf
    • https://cdn.shopify.com/s/files/1/0432/9940/5979/files/gadejofaf.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20745245188.pdf
    • https://cdn.shopify.com/s/files/1/0431/6102/6719/files/full_ielts_academic_reading_test.pdf
    • https://cdn.shopify.com/s/files/1/0428/5107/4214/files/75844742070.pdf
    • https://cdn.shopify.com/s/files/1/0428/6355/8815/files/71395141566.pdf
    • https://cdn.shopify.com/s/files/1/0433/6225/5006/files/38044769892.pdf
    • https://cdn.shopify.com/s/files/1/0434/1959/9004/files/26639180865.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_off000058b1.bin
55b4855fb4022052563cd8ced9e84eecb9da8fb772b59886eab9f5ca3ed99697		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58B1 5436 bytes
font_01_sfnt_off00006afa.bin
d392edb12f93093cd6488507ae6791483db39d1059cf40ff0ae334a432488c97		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AFA 10596 bytes
font_02_sfnt_off00008f4b.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F4B 4324 bytes

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