Malicious PDF — malware analysis report

Static analysis result for SHA-256 5094c01a4088b2eb…

MALICIOUS

PDF

41.2 KB Created: 2020-08-20 13:09:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4615085997cdcc9749883592662ae7a2 SHA-1: c1487456546a2a5fb1ecaa9c7e1e8d402ab50926 SHA-256: 5094c01a4088b2ebbf2d3ded3f7498e3dc011ef5937a44fa4294a9bc9007ffe9
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with at least one identified as a malicious redirector. The document body, though partially corrupted, contains text suggesting a lure related to 'outfit hombre formal fiesta' and includes the malicious URL. This indicates a phishing or social engineering attack aiming to redirect 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=outfit+hombre+formal+fiesta
    • http://files.afleroux.com/uploads/1/3/1/0/131070291/xaniwu.pdf
    • http://newikozi.facemadics.com/uploads/1/3/0/8/130813108/3690275.pdf
    • http://files.jamesfamilypage.com/uploads/1/3/1/6/131607103/ralajuluxabukutebotu.pdf
    • https://cdn.shopify.com/s/files/1/0462/7903/2992/files/bookkeeping_all-_in-_one_for_dummies.pdf
    • https://cdn.shopify.com/s/files/1/0431/0011/0999/files/certificat_de_vente_de_terrain.pdf
    • https://cdn.shopify.com/s/files/1/0434/2425/2055/files/dairy_queen_application.pdf
    • https://cdn.shopify.com/s/files/1/0429/6772/8279/files/37571622740.pdf
    • https://cdn.shopify.com/s/files/1/0433/7260/9686/files/pilawe.pdf
    • https://cdn.shopify.com/s/files/1/0431/3799/0818/files/79529570483.pdf
    • https://cdn.shopify.com/s/files/1/0437/3993/8970/files/68676378479.pdf
    • https://cdn.shopify.com/s/files/1/0428/9291/8937/files/convert_html_to_using_nodejs.pdf
    • https://cdn.shopify.com/s/files/1/0434/8251/3570/files/vufuxif.pdf
    • https://cdn.shopify.com/s/files/1/0428/5625/1559/files/sumevugapoxukazegabopemok.pdf
    • https://cdn.shopify.com/s/files/1/0435/2658/6519/files/madumupolunoduguwan.pdf
    • https://cdn.shopify.com/s/files/1/0436/9183/5545/files/bartok_romanian_folk_dances_piano.pdf
    • https://cdn.shopify.com/s/files/1/0435/0076/5336/files/xodomazexore.pdf
    • https://cdn.shopify.com/s/files/1/0429/9803/8679/files/8087752422.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_off000063fa.bin
c33e32d2c031a5221b0fed7a7e4acd6144651cc11f8b418e1cd5732b9b0bd9b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63FA 5176 bytes
font_01_sfnt_off00007567.bin
947517b659722f01196b88aa6003e4cb4c230e72ca324b4c33e39f1f78303dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7567 10080 bytes

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