Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b354a3df404934f…

MALICIOUS

PDF

36.2 KB Created: 2020-08-10 17:25:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 89d45d558ddc8104b3cc471994a22df9 SHA-1: 47aafc7addc59cc7269942b177aecf7bb06e7993 SHA-256: 9b354a3df404934f14a2d3b73d7cb64b9efb93675bbf636b95d7acb8e0502fa5
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One prominent link directs to a known malicious redirector at ttraff.com, which is likely used to obscure the final malicious destination. The document body contains garbled text but includes the URL that triggered the malicious redirector heuristic, suggesting a lure to download or access 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.com/pify?keyword=adobe+acrobat+pro+convert+arabic+pdf+to+word
    • http://files.skichaletmontblanc.com/uploads/1/3/1/0/131069934/bibisetasuxaduz_defefupokome_rasaju_zobodojawuj.pdf
    • http://files.conditionorangepreparedness.com/uploads/1/3/1/3/131383943/6738613.pdf
    • http://files.effectivemortgage.com/uploads/1/3/1/3/131384301/6f995afe9db5b.pdf
    • http://files.royaltyathletix.net/uploads/1/3/1/6/131637137/dae625156.pdf
    • https://cdn.shopify.com/s/files/1/0434/1979/5623/files/dnd_5e_kensei.pdf
    • https://cdn.shopify.com/s/files/1/0439/5089/9368/files/galuluzuzan.pdf
    • https://cdn.shopify.com/s/files/1/0428/7827/1641/files/rosalijatewulemona.pdf
    • https://cdn.shopify.com/s/files/1/0428/5241/7692/files/23328510629.pdf
    • https://cdn.shopify.com/s/files/1/0430/6881/7562/files/87138350071.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xumilegimazuguvabunozanik.pdf
    • https://cdn.shopify.com/s/files/1/0437/2103/1832/files/koxobegetuji.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zeranosorijajigafa.pdf
    • https://cdn.shopify.com/s/files/1/0432/8918/2376/files/free_anger_management_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0435/3549/9418/files/15_day_forecast_for_orlando_florida.pdf
    • https://cdn.shopify.com/s/files/1/0438/8395/4328/files/java_servlet_tutorial_point.pdf
    • https://cdn.shopify.com/s/files/1/0428/0667/3574/files/muzovubabelinisarokosuno.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_off000051aa.bin
00c61068266d7b571ba3acf4cc70138a2fe450840538980bde643f5c7d1fa8d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51AA 5220 bytes
font_01_sfnt_off00006391.bin
38b440af32b764f77742023db1e56cf5003cab01930301981538c4e70c356316		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6391 9496 bytes

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