Malicious PDF — malware analysis report

Static analysis result for SHA-256 926fc67896e8bc46…

MALICIOUS

PDF

49.7 KB Created: 2020-08-07 08:39:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59be96204be7a26933277f912aaf08b2 SHA-1: d5673180d5513a1b3da3a9464b68f76e2b97c7ae SHA-256: 926fc67896e8bc466999c3298ca48e1fb169c19db0fbfb368dad3f61589f2120
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with a critical heuristic firing for a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=clasificacion+de+los+seres+vivos+primaria+pdf', which is the primary indicator of malicious intent. This suggests the document is designed to redirect users to potentially harmful content.

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=clasificacion+de+los+seres+vivos+primaria+pdf
    • http://files.hockeyatlas.net/uploads/1/3/0/9/130969939/5659749.pdf
    • http://files.integratedmusculartherapy.com/uploads/1/3/2/8/132814166/ludukezopuka.pdf
    • http://fubozoxu.intensemedia.com/uploads/1/3/1/3/131379732/2a813f6faed.pdf
    • https://cdn.shopify.com/s/files/1/0436/0326/3650/files/suxujozituzofonov.pdf
    • https://cdn.shopify.com/s/files/1/0432/0778/6654/files/8068653293.pdf
    • https://cdn.shopify.com/s/files/1/0428/9429/5203/files/clonedvd2_registration_file.pdf
    • https://cdn.shopify.com/s/files/1/0433/4583/8248/files/adhar_card_download_by_aadhaar_number.pdf
    • https://cdn.shopify.com/s/files/1/0434/8834/6262/files/16363158630.pdf
    • https://cdn.shopify.com/s/files/1/0432/7027/5237/files/kinukaziv.pdf
    • https://cdn.shopify.com/s/files/1/0428/2207/4534/files/97868123115.pdf
    • https://cdn.shopify.com/s/files/1/0431/4152/9754/files/suworasa.pdf
    • https://cdn.shopify.com/s/files/1/0431/9654/7230/files/8379172455.pdf
    • https://cdn.shopify.com/s/files/1/0430/1458/6521/files/ruruj.pdf
    • https://cdn.shopify.com/s/files/1/0431/2976/6039/files/28303366895.pdf
    • https://cdn.shopify.com/s/files/1/0432/3124/8541/files/82288575391.pdf
    • https://cdn.shopify.com/s/files/1/0434/8660/9573/files/4810655755.pdf
    • https://cdn.shopify.com/s/files/1/0431/3638/5175/files/associer_plusieurs.pdf
    • https://cdn.shopify.com/s/files/1/0432/8158/0200/files/mevivupi.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_off000083d7.bin
33e6826d493c4a2adab0a0aec19a39df62e463889d20ac3b4e43f1fe5d8e5abb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83D7 5264 bytes
font_01_sfnt_off000095af.bin
658ff96fa04f391e10bd1094e37d9e2113e4f9f6eed06f1c32e991af6a3f3de0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95AF 10948 bytes

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