Malicious PDF — malware analysis report

Static analysis result for SHA-256 1de659c07d8d3f39…

MALICIOUS

PDF

45.9 KB Created: 2020-08-01 13:22:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 488feea0f9b903d21ac6e86703b8d39c SHA-1: 79fccf827af304c539898c40cc02065b342d9bda SHA-256: 1de659c07d8d3f39d866da5a2cfc8420f66d8dd59ab8fe56635900315b4e20b1
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=john+deere+lt155+manual'. It also exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the same URL and appears to be a lure for a 'John Deere lt155 manual'. The primary attack vector is likely social engineering via a malicious link within the PDF.

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=john+deere+lt155+manual
    • http://files.neferkasalukis.com/uploads/1/3/1/4/131452942/f9b0c3.pdf
    • http://files.gildatgarbanzos.org/uploads/1/3/2/6/132681474/aef2e7f82.pdf
    • http://files.theartofmonicareekie.com/uploads/1/3/0/7/130775346/regezekevudafe-rukenalotiz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jonexosorovofevovu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0862/1735/files/94446950136.pdf
    • https://cdn.shopify.com/s/files/1/0430/8946/1410/files/24371563454.pdf
    • https://cdn.shopify.com/s/files/1/0432/0156/0737/files/dujesewel.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rasamonuje.pdf
    • https://cdn.shopify.com/s/files/1/0433/2437/5194/files/vobogu.pdf
    • https://cdn.shopify.com/s/files/1/0431/8419/3696/files/pusoraponujaz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/97098861098.pdf
    • https://cdn.shopify.com/s/files/1/0437/1320/0278/files/dikizaserirowoxi.pdf
    • https://cdn.shopify.com/s/files/1/0430/8379/2548/files/92845776240.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_off00007797.bin
52add080a89e6298b6ca0b4493f4540887df2e8aef51f743f0100c2fb85bd2b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7797 5052 bytes
font_01_sfnt_off00008898.bin
994684269969c66afb0b0b4d98d176cafb0cf71103fabf7985b901041209bc0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8898 10004 bytes

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