Malicious PDF — malware analysis report

Static analysis result for SHA-256 c55be3c07fe0baad…

MALICIOUS

PDF

83.1 KB Created: 2020-09-13 19:50:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8924ef4cc7f50831ee1e19ab9008af9d SHA-1: e563b0e329db30c4e8945213a5602289ad736a3d SHA-256: c55be3c07fe0baad5225ddaca01189aecdf21d559cadd5947cbd2b41c0468e67
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=list+of+contra+dance+moves'. This indicates the document's primary purpose is to redirect users to a potentially harmful site. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. No scripts were extracted from this sample.

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/wix?keyword=list+of+contra+dance+moves
    • https://static.usrfiles.com/ugd/145364_1b507478d10f4367ac853ca81f8b4559.pdf
    • https://static.usrfiles.com/ugd/e80f4c_9437cb7ac8af4ed8a55ec9e12cd669ef.pdf
    • https://static.usrfiles.com/ugd/85d67f_e38bfed4b74c4e179cc1cac66f899737.pdf
    • https://static.usrfiles.com/ugd/6d45f6_351d6e9dd77a4b6db4b82603ba7dc240.pdf
    • https://static.usrfiles.com/ugd/b8c837_fb35b38e8ec64f9eac2e261c1f71f2e2.pdf
    • https://cdn.shopify.com/s/files/1/0431/5162/2306/files/75155265556.pdf
    • https://cdn.shopify.com/s/files/1/0430/4958/2743/files/the_magical_number_seven_plus_or_minus_two.pdf
    • https://cdn.shopify.com/s/files/1/0437/2067/1386/files/victory_road_fire_red.pdf
    • https://cdn.shopify.com/s/files/1/0428/9308/2783/files/arkham_city_ps3_trophy_guide.pdf
    • https://cdn.shopify.com/s/files/1/0437/6982/3383/files/13220667492.pdf
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/vojadi.pdf
    • https://cdn.shopify.com/s/files/1/0429/9892/3427/files/95467337733.pdf
    • https://cdn.shopify.com/s/files/1/0427/7973/8278/files/pazopijevegetovafojamatar.pdf
    • https://cdn.shopify.com/s/files/1/0437/8106/2813/files/59088904236.pdf
    • https://cdn.shopify.com/s/files/1/0429/3401/0015/files/97282764070.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_off00010aeb.bin
e568b4d5187a394a682eb08adf83343e7aa316eac49fbeeda65ad3c4167caab7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10AEB 5136 bytes
font_01_sfnt_off00011c5a.bin
5213ddf4d1b936c5c46b72fbebbe2e253ef7c435d618a82b164b5682b7f609ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11C5A 10192 bytes

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