Malicious PDF — malware analysis report

Static analysis result for SHA-256 962dcf799a8ceafa…

MALICIOUS

PDF

33.0 KB Created: 2020-08-09 07:09:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 807d03b8d411f5a6cca4a96922b82d06 SHA-1: 5aa32c8c94f4fba4deb21d179e90189673899f4f SHA-256: 962dcf799a8ceafa30638cbca63a645acb49ea8dc3f4f4579f766f3c68deecbd
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=possessive+s+and+possessive+adjectives+exercises+pdf'. This URL is designed to redirect users to potentially harmful content. The document body, though heavily obfuscated, also contains this URL and numerous other links, many hosted on shopify.com, suggesting a link farm or redirection tactic. The primary intent appears to be luring users to the malicious redirector under the guise of providing a PDF document.

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=possessive+s+and+possessive+adjectives+exercises+pdf
    • http://files.evelandfarm.com/uploads/1/3/1/4/131436971/93088aafe1eb3.pdf
    • http://files.galwayhairandlashco.com/uploads/1/3/2/6/132682723/lufeloretejuso-girozipepe-bajodaxos-nokopi.pdf
    • http://files.celebrateyourstories.com/uploads/1/3/2/6/132681342/2837202.pdf
    • https://cdn.shopify.com/s/files/1/0432/1781/3661/files/77793501628.pdf
    • https://cdn.shopify.com/s/files/1/0428/9724/4316/files/yamaha_outboard_service_manual_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/8999/2616/files/66949502883.pdf
    • https://cdn.shopify.com/s/files/1/0431/9186/1412/files/jesed.pdf
    • https://cdn.shopify.com/s/files/1/0429/8850/3203/files/gerasun.pdf
    • https://cdn.shopify.com/s/files/1/0429/9295/9642/files/52361843552.pdf
    • https://cdn.shopify.com/s/files/1/0432/5300/6494/files/86622454870.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gaxasukazojolivuf.pdf
    • https://cdn.shopify.com/s/files/1/0429/8833/9354/files/sapuberonuj.pdf
    • https://cdn.shopify.com/s/files/1/0432/2410/5124/files/90048655364.pdf
    • https://cdn.shopify.com/s/files/1/0430/2897/1674/files/vesebasafezoja.pdf
    • https://cdn.shopify.com/s/files/1/0430/3942/4669/files/gesafegasukovodoxepogo.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_off0000440d.bin
02fd341211c3cfe91fcd90e860045a8c8f243bee7f2882a04079e7880ba3cea9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x440D 5324 bytes
font_01_sfnt_off0000564b.bin
033de89ee9f5d26a8ca4fd0e96302404cb2d649e9075284f6f8f298a4a055c20		 pdf-font-stream PDF embedded font (sfnt) at offset 0x564B 9520 bytes

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