Malicious PDF — malware analysis report

Static analysis result for SHA-256 f47062fdf5d58cbd…

MALICIOUS

PDF

41.2 KB Created: 2020-08-06 20:18:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44fbfb1ee297043a7ecae03b065c97f0 SHA-1: 5f1d58f245f66977d5588dbb83fbf8895bf79447 SHA-256: f47062fdf5d58cbdb548a2c4d585c55d26743e80ca0d390e61667e8606a3fc7a
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to external resources, which is indicative of a link farm or redirection tactic. One of the primary links, 'https://ttraff.com/pify?keyword=b%25C3%25BCrkert+6014+pdf', is flagged as a malicious redirector. The document body itself is heavily obfuscated and contains the malicious URL, suggesting the document's purpose is to trick the user into visiting this malicious site.

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=b%25C3%25BCrkert+6014+pdf
    • http://files.gaindetalks.com/uploads/1/3/0/8/130874629/dojoja-kefuzegomoli-wadab.pdf
    • http://files.wellspring-creative.net/uploads/1/3/0/7/130775368/f4ccac8ae94ef3.pdf
    • http://files.protectplayanow.org/uploads/1/3/2/6/132683121/5013231.pdf
    • http://babivoju.smilecommunicationsgroup.com/uploads/1/3/1/3/131379730/6608182.pdf
    • https://cdn.shopify.com/s/files/1/0429/6815/4278/files/finopogaz.pdf
    • https://cdn.shopify.com/s/files/1/0429/6392/7206/files/35332288727.pdf
    • https://cdn.shopify.com/s/files/1/0430/3149/4810/files/zoology_mcqs_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/4349/5841/files/36811134764.pdf
    • https://cdn.shopify.com/s/files/1/0434/5724/9430/files/fuwotegebola.pdf
    • https://cdn.shopify.com/s/files/1/0432/4681/3344/files/zuxemasojiseje.pdf
    • https://cdn.shopify.com/s/files/1/0431/8281/7441/files/best_annotation_app_ios.pdf
    • https://cdn.shopify.com/s/files/1/0430/0426/4602/files/vokagifizalesotizus.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62654677968.pdf
    • https://cdn.shopify.com/s/files/1/0437/2099/9064/files/oracle_sql_interview_questions_and_answers_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/0379/6894/files/ridupojarusumonenu.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_off000058f6.bin
b5b23c4d0612722f22284d5e2c9534b131256e76f8834b6a95abc355275b717f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58F6 5284 bytes
font_01_sfnt_off00006ade.bin
96dbb0e53830f9d79f828ab5310c9b699c3af866e539bfd8f3d5ca603749c0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6ADE 14100 bytes

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