Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e4edf57218209bf…

MALICIOUS

PDF

68.8 KB Created: 2020-08-24 17:06:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4093b2ee2a5741a919febc2aefff2323 SHA-1: 48beca3ef6bf31163df63171cc32a9b3131f97fb SHA-256: 3e4edf57218209bfb16cb542298cc0a478541985c82240752662e1b3fc30b3a4
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.ru/pify?keyword=lagu+b.+a.+p+i+remember'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with the first being 'https://cdn.shopify.com/s/files/1/0433/1687/1333/files/definition_of_verbal_bullying.pdf'. The document body, though heavily obfuscated, also contains these URLs. This suggests the primary intent is to lure users to malicious infrastructure.

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.ru/pify?keyword=lagu+b.+a.+p+i+remember
    • http://files.cadep.net/uploads/1/3/2/6/132695828/fc26447.pdf
    • https://cdn.shopify.com/s/files/1/0433/1687/1333/files/definition_of_verbal_bullying.pdf
    • https://cdn.shopify.com/s/files/1/0429/3191/2857/files/regafewine.pdf
    • https://cdn.shopify.com/s/files/1/0432/1778/0896/files/28709670971.pdf
    • https://cdn.shopify.com/s/files/1/0438/4204/4066/files/c_multiple_choice_questions.pdf
    • https://cdn.shopify.com/s/files/1/0434/7671/3637/files/zarodoxu.pdf
    • https://cdn.shopify.com/s/files/1/0433/9063/2101/files/go_math_accelerated_grade_7.pdf
    • https://cdn.shopify.com/s/files/1/0437/3191/0821/files/paramikido.pdf
    • https://cdn.shopify.com/s/files/1/0430/0436/2906/files/vubiluradebidiguzuvugi.pdf
    • https://cdn.shopify.com/s/files/1/0431/1898/5377/files/caterpillar_330_specs.pdf
    • https://cdn.shopify.com/s/files/1/0439/3022/2747/files/the_chemical_adventures_of_sherlock_holmes.pdf
    • https://cdn.shopify.com/s/files/1/0437/2915/8295/files/mapusimaxobelino.pdf
    • https://cdn.shopify.com/s/files/1/0433/9764/4444/files/tarevodamolavosifibaw.pdf
    • https://cdn.shopify.com/s/files/1/0435/3907/1130/files/tratamiento_de_absceso_dental.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009725.bin
4d8138cb7d8dda119e5b0dfe52043a18fa2718ff05734febb094c54d71f46485		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9725 18048 bytes
font_01_sfnt_off0000cfde.bin
dc4064166fecf20c86532383c33a3a331a644942d8568069c8c10b8a4407a32c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCFDE 5040 bytes
font_02_sfnt_off0000e0f4.bin
3fdbb5e7a9b7e6364b055b9a9fa5eca0718336fe8255cd626120e7d1cd132cc9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE0F4 11132 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.