Malicious PDF — malware analysis report

Static analysis result for SHA-256 3217a5c234dd8e1b…

MALICIOUS

PDF

44.0 KB Created: 2020-08-22 10:27:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68b2bdef600b68eb8eebb089d98f93a4 SHA-1: 3e7acf15c84bc042cf61d80bd3ec1ce0784f21eb SHA-256: 3217a5c234dd8e1bd3f657216339f47f03c7db59cf2abfdaa448a86eab5cb958
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=facebook+cover+collage+template+free', suggesting a lure for social media-related content. The presence of a link farm heuristic further indicates malicious intent to distribute links, likely for phishing or malware delivery.

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=facebook+cover+collage+template+free
    • http://files.sarssm.org/uploads/1/3/1/1/131163851/rigixasusozifesixa.pdf
    • http://totuzaxe.57ideate.com/uploads/1/3/2/7/132712207/5c10d.pdf
    • http://wusifi.adentaaustralia.com/uploads/1/3/0/7/130776167/d386957c7896.pdf
    • http://tozewaze.westpointclassof1968.com/uploads/1/3/1/3/131380213/2782392.pdf
    • https://cdn.shopify.com/s/files/1/0428/8747/9455/files/rafowemomalelepofononi.pdf
    • https://cdn.shopify.com/s/files/1/0432/6578/6006/files/98601871324.pdf
    • https://cdn.shopify.com/s/files/1/0430/6770/3457/files/folewaroruve.pdf
    • https://cdn.shopify.com/s/files/1/0434/2821/6997/files/94880124158.pdf
    • https://cdn.shopify.com/s/files/1/0434/5567/6568/files/anonytun_pro_mod.pdf
    • https://cdn.shopify.com/s/files/1/0431/6938/2568/files/boris_godunov_libretto_english.pdf
    • https://cdn.shopify.com/s/files/1/0449/8269/8142/files/emac_graphics_card.pdf
    • https://cdn.shopify.com/s/files/1/0436/3422/9398/files/63652370221.pdf
    • https://cdn.shopify.com/s/files/1/0435/9946/2558/files/60946493367.pdf
    • https://cdn.shopify.com/s/files/1/0437/8096/4510/files/ascaris_lumbricoides_tratamiento_pediatria.pdf
    • https://cdn.shopify.com/s/files/1/0428/2987/3318/files/93938369422.pdf
    • https://cdn.shopify.com/s/files/1/0430/6649/1041/files/sikilifumokugedugar.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_off00006e09.bin
6358b79f4cccf8a4c6a65d503ae5b9d292c2ef6250387beffa2e7731e6f598d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E09 5376 bytes
font_01_sfnt_off00008049.bin
ed04ea567b642f16022420c72954fdbcd2bbfa072a72a26d7893ebc527a3d79d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8049 10212 bytes

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