Malicious PDF — malware analysis report

Static analysis result for SHA-256 92eec6061ec1bf6f…

MALICIOUS

PDF

44.4 KB Created: 2020-08-28 03:46:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 748c660f1bdd947360e86bd56e5dfee6 SHA-1: c7540cd8e66cf66c2c4504989115506fe84cad71 SHA-256: 92eec6061ec1bf6f9429af6cf2f405f1bd46ab8b1638072510a5058e792c940c
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=aidin+salih+ger%25C3%25A7ek+t%25C4%25B1p+indir', leads to known malicious infrastructure. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, some of which are benign but others are unknown or potentially malicious. The primary attack vector appears to be social engineering through a deceptive link.

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=aidin+salih+ger%25C3%25A7ek+t%25C4%25B1p+indir
    • http://fomamez.rickbirley.com/uploads/1/3/1/6/131636612/924776.pdf
    • https://cdn.shopify.com/s/files/1/0432/0670/5316/files/53860334800.pdf
    • https://cdn.shopify.com/s/files/1/0434/3735/9271/files/linked_list_c_code.pdf
    • https://cdn.shopify.com/s/files/1/0431/1482/3834/files/71098080269.pdf
    • https://cdn.shopify.com/s/files/1/0434/5901/8919/files/convert_iso_to_img.pdf
    • https://cdn.shopify.com/s/files/1/0460/1436/5855/files/sonic_all_stars_racing_transformed_soundtrack.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57032902602.pdf
    • https://cdn.shopify.com/s/files/1/0449/1522/8839/files/tiludu.pdf
    • https://cdn.shopify.com/s/files/1/0429/9957/8773/files/nisemunevov.pdf
    • https://cdn.shopify.com/s/files/1/0434/2553/0005/files/grim_fandango_remastered_trophy_guide_and_roadmap.pdf
    • https://cdn.shopify.com/s/files/1/0432/0896/6301/files/jitorejaditotinegijev.pdf
    • https://cdn.shopify.com/s/files/1/0432/6152/6166/files/suvow.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85583151980.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_off00006b84.bin
5abd0f34b11d058125192100da71d2d3fddbc2878e17933a518d9836111e882b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B84 5488 bytes
font_01_sfnt_off00007e19.bin
5835037c40461b3c0f86de9cd99fec9c9f7eaed0fe7e291045c706f44c0a4e66		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E19 11736 bytes

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