Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7e625303140e921…

MALICIOUS

PDF

97.8 KB Created: 2020-08-01 20:42:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 76cbce16d60dcf598af565f888211b75 SHA-1: 302b80be820a49540ea08c8defbbd498b1a88d3f SHA-256: b7e625303140e921cb16b1ddbb935f254a8e683467072b42fbb517209215ed6e
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=what+does+sata+stand+for'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with 'https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nujogopuju.pdf' being a prominent example. The document body, though heavily obfuscated, contains the same lure text as the malicious URL, indicating a social engineering attempt to direct users to a potentially harmful 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=what+does+sata+stand+for
    • http://files.watervlietpubliclibrary.org/uploads/1/3/1/3/131381021/1659827.pdf
    • http://files.js-militaria.com/uploads/1/3/1/4/131408942/gopulexosipata.pdf
    • http://files.onelittlelight.org/uploads/1/3/1/4/131437172/virujovupagaji.pdf
    • http://files.theglassforeststudio.com/uploads/1/3/2/7/132740756/dabav.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nujogopuju.pdf
    • https://cdn.shopify.com/s/files/1/0430/6285/3794/files/vovirujevezofiw.pdf
    • https://cdn.shopify.com/s/files/1/0432/8708/5220/files/asics_gel_resolution_6_womens_tennis_shoe.pdf
    • https://cdn.shopify.com/s/files/1/0431/0210/9856/files/34957334494.pdf
    • https://cdn.shopify.com/s/files/1/0434/6635/8934/files/1675326456.pdf
    • https://cdn.shopify.com/s/files/1/0432/0801/6027/files/46993884679.pdf
    • https://cdn.shopify.com/s/files/1/0430/5249/9098/files/90444342226.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/riwemabosemuridaredexe.pdf
    • https://cdn.shopify.com/s/files/1/0431/9058/3458/files/riwezenapapefujulumevu.pdf
    • https://cdn.shopify.com/s/files/1/0432/4940/2024/files/90584308699.pdf
    • https://cdn.shopify.com/s/files/1/0432/1270/1854/files/jinoget.pdf
    • https://cdn.shopify.com/s/files/1/0428/5857/8086/files/94827176675.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_off00013d59.bin
d47fa7993188353f694e9bef4e76269deb0b9e6f6704e4e141296e19e958d9b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13D59 4976 bytes
font_01_sfnt_off00014e4d.bin
e23681e919e34bd5e70cf982704213b9baf1f448701a4dd760abbce63a407f4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14E4D 13676 bytes

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