Malicious PDF — malware analysis report

Static analysis result for SHA-256 384525ae277c38c9…

MALICIOUS

PDF

41.5 KB Created: 2020-07-31 11:48:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff05516fdd4f9ff08a9be7ccd53af4d0 SHA-1: a29c9b0d374886f0201c9f0ea8dd4adcc1d27741 SHA-256: 384525ae277c38c9d6be69b7ef12a3fdba806ca2c18aebadc6486bdca490367c
120 Risk Score

Malware Insights

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

The PDF file contains embedded links that redirect to a known malicious domain, ttraff.com. The document body, though heavily obfuscated, suggests a lure related to an 'Agrometeorology textbook pdf'. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to distribute malicious content. The primary malicious IOC is the redirector URL.

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=agrometeorology+textbook+pdf
    • http://files.plainseagle.com/uploads/1/3/0/7/130775712/bevopanen.pdf
    • http://files.eedstanzania.org/uploads/1/3/1/0/131070434/38ff526c32c96a.pdf
    • http://files.jonathandogaming.com/uploads/1/3/2/7/132741189/tekebel.pdf
    • http://files.lakeeriecommunications.org/uploads/1/3/1/4/131438453/mimokexusidajaveji.pdf
    • http://files.travelwithloridanette.com/uploads/1/3/1/4/131453574/1300795.pdf
    • http://files.lakeerieco
    • https://cdn.shopify.com/s/files/1/0428/6483/6764/files/ropogipozije.pdf
    • https://cdn.shopify.com/s/files/1/0429/2198/4166/files/79026614615.pdf
    • https://cdn.shopify.com/s/files/1/0430/9159/1317/files/talujerodex.pdf
    • https://cdn.shopify.com/s/files/1/0435/9307/2808/files/48531292963.pdf
    • https://cdn.shopify.com/s/files/1/0432/6142/7867/files/kizaxetufikami.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/6338597663.pdf
    • https://cdn.shopify.com/s/files/1/0435/8062/0963/files/vededijigegimiluvokosetix.pdf
    • https://cdn.shopify.com/s/files/1/0440/5323/3814/files/55094019132.pdf
    • https://cdn.shopify.com/s/files/1/0431/7950/7875/files/koloja.pdf
    • https://cdn.shopify.com/s/files/1/0431/7501/8662/files/tijub.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zixetirubopejama.pdf
    • https://cdn.shopify.com/s/files/1/0434/8238/2502/files/97114689166.pdf
    • https://cdn.shopify.com/s/files/1/0430/3981/7890/files/98953827090.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_off000064b6.bin
d41e152c2d200c74cbff84535d7c403be4333305e415b771fa7b9e06e0aa75fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64B6 4968 bytes
font_01_sfnt_off000075b1.bin
f67d5a2fbb59ebc11e39970248467348449548138620ea0b0e1592b5025e7f6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75B1 10276 bytes

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