Malicious PDF — malware analysis report

Static analysis result for SHA-256 2eb0187b27be6d17…

MALICIOUS

PDF

41.2 KB Created: 2020-08-19 19:27:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 015de874dd63e912316811f30a1be5f0 SHA-1: 3d41983c34e3df6ce01e9e1d2dee07403b268c09 SHA-256: 2eb0187b27be6d1733980388bc7fd411b070951eb82fe980d1b0e13754a9b286
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to external PDFs hosted on various domains, including a known malicious redirector. The document body, though heavily obfuscated, contains text related to leadership and the malicious URL. This suggests a link farm or SEO poisoning attack designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=behaviors+of+transformational+leadership
    • http://files.sweettweetsby2.com/uploads/1/3/0/9/130969993/jaraxovuses_wilugoduz_sugovaduwuniweg_xegolesilif.pdf
    • http://files.frescolondon.co.uk/uploads/1/3/1/3/131380251/vumutekelobadetige.pdf
    • http://zubipefip.alkhomassia.com/uploads/1/3/0/7/130775971/wesepemisigur.pdf
    • http://files.paulasherbals.com/uploads/1/3/0/9/130969915/roxuzajen-komomub.pdf
    • https://cdn.shopify.com/s/files/1/0441/0654/7352/files/tupac_shakur_ghetto_gospel.pdf
    • https://cdn.shopify.com/s/files/1/0428/7594/5113/files/gamutufizedenozuzupi.pdf
    • https://cdn.shopify.com/s/files/1/0434/3159/2102/files/lakutexagowomikafe.pdf
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/lafotevojasofisupavazopax.pdf
    • https://cdn.shopify.com/s/files/1/0434/7727/0678/files/algoritmos_de_ordenamiento_en_java.pdf
    • https://cdn.shopify.com/s/files/1/0433/0664/7717/files/75325983253.pdf
    • https://cdn.shopify.com/s/files/1/0435/9795/5229/files/90688148010.pdf
    • https://cdn.shopify.com/s/files/1/0428/3373/9932/files/mawikatezipejarelosabudor.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_off00006219.bin
e19563f4f61cc4b937e8a277482c9f5859f38c4034abea95f5fbff044d85792c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6219 5392 bytes
font_01_sfnt_off00007446.bin
82e96335462fe7f1d6abca8ed3f7a947df04fad3406ca1452fb490e1ebe3f97c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7446 10476 bytes

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