Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8eb2a912f71af9b…

MALICIOUS

PDF

42.4 KB Created: 2020-08-07 00:29:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 480feae508f68c362ee575200700c6bc SHA-1: 007f96c071adba5ff355cf551c02d896fb278bc7 SHA-256: f8eb2a912f71af9be648bcf41068c900d6b82bfcb9c97ae5fc0ad6f231a46f5d
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is 'https://ttraff.com/pify?keyword=cisco+wifi+access+point+pdf', which is likely used to lure the user into a phishing or malware download site. The document body, though heavily obfuscated, contains references to the lure topic and 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=cisco+wifi+access+point+pdf
    • http://files.joseluisperezjim.com/uploads/1/3/1/3/131383553/gejuxab.pdf
    • http://foremaxo.breadventuresnj.com/uploads/1/3/0/9/130969754/7415713.pdf
    • http://files.lesbiansinfleeces.com/uploads/1/3/1/3/131379991/9589098.pdf
    • http://files.frostbites.net/uploads/1/3/1/3/131382243/1cbb731f37b2d.pdf
    • http://files.pnggeoscience.com/uploads/1/3/2/8/132815872/8b14a2146f.pdf
    • https://cdn.shopify.com/s/files/1/0430/3876/9303/files/biography_of_lord_krishna.pdf
    • https://cdn.shopify.com/s/files/1/0431/1960/7965/files/essentially_contested_concepts_gallie.pdf
    • https://cdn.shopify.com/s/files/1/0435/2468/5975/files/12652210679.pdf
    • https://cdn.shopify.com/s/files/1/0431/6528/6564/files/53386344248.pdf
    • https://cdn.shopify.com/s/files/1/0431/7803/3303/files/53143220316.pdf
    • https://cdn.shopify.com/s/files/1/0440/2341/4942/files/windows_7_vmware_image.pdf
    • https://cdn.shopify.com/s/files/1/0433/3617/1688/files/collocations_with_make.pdf
    • https://cdn.shopify.com/s/files/1/0433/7005/3784/files/94587843824.pdf
    • https://cdn.shopify.com/s/files/1/0428/3957/2643/files/human_body_parts_images.pdf
    • https://cdn.shopify.com/s/files/1/0432/2295/8248/files/45527347646.pdf
    • https://cdn.shopify.com/s/files/1/0434/9476/8792/files/7235576989.pdf
    • https://cdn.shopify.com/s/files/1/0432/3170/7294/files/toxuwuguleditadu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7328/1948/files/77095037795.pdf
    • https://cdn.shopify.com/s/files/1/0430/5597/2501/files/65637744162.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_off0000689c.bin
c98460e52a7a55d10c686cf6732aeac8e4ef108ea65c89b4f3d02035f3e9e0a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x689C 5020 bytes
font_01_sfnt_off000079dd.bin
73d904e7b84d09f2b1833e20ebfed2ae49982d0ed118919b1a7b806d94dd7652		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79DD 10084 bytes

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