Malicious PDF — malware analysis report

Static analysis result for SHA-256 5010d630f56ec193…

MALICIOUS

PDF

58.6 KB Created: 2020-08-07 16:31:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 469e4399e8f082d7f9c89713f26b3861 SHA-1: c9cb35f122edaa37e586bff0239c6289ad5b0f6f SHA-256: 5010d630f56ec193e5e25b4dcd2f6ce853191400faff735c86bfcc99c364659e
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to benign Shopify domains, but one critical link redirects to a known malicious domain, ttraff.com. This suggests a phishing or redirection attack. The document body, though heavily obfuscated, contains the malicious URL, indicating an attempt to lure the user to click on it. No scripts were extracted, but the presence of a malicious redirector is a strong indicator of malicious intent.

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=ratio+decidendi+y+obiter+dictum+pdf
    • http://files.communityspanish.com/uploads/1/3/2/7/132740281/ee5159707f9b.pdf
    • http://files.metropolitanperformingarts.org/uploads/1/3/0/9/130969712/e1fd4bff4.pdf
    • http://files.alexarainewright.com/uploads/1/3/1/3/131398204/xakebakitagidilu.pdf
    • https://cdn.shopify.com/s/files/1/0452/5703/1842/files/naming_inorganic_compounds_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/minority_scholarship_form_2020_19.pdf
    • https://cdn.shopify.com/s/files/1/0435/9258/1288/files/rudidabovobunuforijevusus.pdf
    • https://cdn.shopify.com/s/files/1/0432/0660/7012/files/loxavotekizitujo.pdf
    • https://cdn.shopify.com/s/files/1/0435/8314/4093/files/sitisedudemetoj.pdf
    • https://cdn.shopify.com/s/files/1/0429/6504/1308/files/36649413667.pdf
    • https://cdn.shopify.com/s/files/1/0431/5004/9446/files/pathfinder_advanced_race_guide_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0427/4978/8327/files/62102151480.pdf
    • https://cdn.shopify.com/s/files/1/0429/3600/8871/files/50140028256.pdf
    • https://cdn.shopify.com/s/files/1/0431/3333/7768/files/16626127983.pdf
    • https://cdn.shopify.com/s/files/1/0433/1329/9620/files/81935460195.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_off0000a79e.bin
c4339fd06d206575a87c7782c6307c3f2652df72a16e19f11c9d038e0de7a6d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA79E 5340 bytes
font_01_sfnt_off0000b9c4.bin
1b11d59851cba3adac0bddd2a09c7dd16227e6b0dfbc7086bc14055e49bf6da0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB9C4 10348 bytes

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