Malicious PDF — malware analysis report

Static analysis result for SHA-256 e25007100b955214…

MALICIOUS

PDF

36.1 KB Created: 2020-08-04 18:44:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46f5235b029a4b20c7eddc3115d989bd SHA-1: 573d5f4ff5e8a354e3e7f71c8e7c06798998fdd8 SHA-256: e25007100b9552140a665af6fbfbcfa87a540733b03b662047f0600267e86eb8
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting an attempt to distribute malicious content or engage in SEO manipulation. The primary malicious URL identified is https://ttraff.ru/pify?keyword=kimball+data+warehouse+lifecycle+toolkit+pdf, which likely serves as a gateway to further malicious activity.

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=kimball+data+warehouse+lifecycle+toolkit+pdf
    • http://files.tylarowen.com/uploads/1/3/2/6/132696512/puxijirupejates.pdf
    • http://files.jesusheadofhischurch.org/uploads/1/3/0/7/130740298/c7182ed76760.pdf
    • http://files.vvachapter196.com/uploads/1/3/1/3/131380771/lolafegigigirim.pdf
    • http://files.centralhighgrizzlyband.com/uploads/1/3/0/8/130874025/wopofe.pdf
    • https://cdn.shopify.com/s/files/1/0428/9275/5111/files/bims_assessment_spanish.pdf
    • https://cdn.shopify.com/s/files/1/0431/3884/2779/files/84601275710.pdf
    • https://cdn.shopify.com/s/files/1/0435/1868/9432/files/41459848091.pdf
    • https://cdn.shopify.com/s/files/1/0432/9200/0412/files/kawogoziwifozif.pdf
    • https://cdn.shopify.com/s/files/1/0433/9725/1235/files/65216765654.pdf
    • https://cdn.shopify.com/s/files/1/0438/4115/9333/files/managerial_accounting_garrison.pdf
    • https://cdn.shopify.com/s/files/1/0431/8085/1364/files/24082251785.pdf
    • https://cdn.shopify.com/s/files/1/0435/4991/7347/files/black_and_decker_weed_eater_string.pdf
    • https://cdn.shopify.com/s/files/1/0440/6624/2710/files/71807132684.pdf
    • https://cdn.shopify.com/s/files/1/0433/4845/9675/files/86869834466.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_off00004e6d.bin
72e3d57e88c4c96996059a8afd54241ec3c23c043ee7f5d3a5366c0a6bd38770		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E6D 5764 bytes
font_01_sfnt_off000061eb.bin
395054bc3343ae34605bd94f43db4b83f1edb6a5cc37b397d694fbc916c1cdaa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61EB 9844 bytes

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