Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6708e9737186c86…

MALICIOUS

PDF

36.8 KB Created: 2020-08-24 16:54:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 720db73f0915432b720a3af6483e4ac2 SHA-1: bbba50e6e37b260e9d94f3300c11797cac42e341 SHA-256: e6708e9737186c86658b0831857bdbd52c34d5367e873e1615526dbdf12246ed
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=easton+archery+arrow+chart+pdf, which is likely used to redirect the user to a malicious site. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to various PDF files, likely to manipulate search engine results.

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=easton+archery+arrow+chart+pdf
    • http://files.trishatakestravel.com/uploads/1/3/1/3/131383478/5993549.pdf
    • http://xeludub.sujordan.com/uploads/1/3/1/8/131856646/9f93a02b4cf.pdf
    • http://fogawel.marquetteviscomm.com/uploads/1/3/0/7/130739624/foxubigafikifu.pdf
    • https://cdn.shopify.com/s/files/1/0431/4578/9606/files/renewable_energy_definition.pdf
    • https://cdn.shopify.com/s/files/1/0438/9113/0536/files/arihant_upsc_books_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0438/0773/5969/files/cisco_fundamentals_of_networking.pdf
    • https://cdn.shopify.com/s/files/1/0428/1729/0406/files/sofilalemevegugibi.pdf
    • https://cdn.shopify.com/s/files/1/0431/1502/0448/files/kimavuvu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1144/8729/files/88578989856.pdf
    • https://cdn.shopify.com/s/files/1/0431/7354/4093/files/31265564338.pdf
    • https://cdn.shopify.com/s/files/1/0434/0423/0805/files/32737282325.pdf
    • https://cdn.shopify.com/s/files/1/0433/3889/1419/files/how_to_become_a_good_motivational_speaker.pdf
    • https://cdn.shopify.com/s/files/1/0431/1475/8293/files/35553985812.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_off000042fb.bin
4c71809c9acca09f664a1cbec587c49191c19cc7e5c7c6e2e307e2ed8220723d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x42FB 5364 bytes
font_01_sfnt_off0000553b.bin
149738eb3e1d0bfb4a5732e89a115965e6f0cf3fc4971c694d3ce3619176544d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x553B 6148 bytes
font_02_sfnt_off00006519.bin
ab4c630ab728cf0216f3a04ed51dc8512f7f4ec1e474aa8fcb91dff6c1ebf312		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6519 9584 bytes

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