Malicious PDF — malware analysis report

Static analysis result for SHA-256 a31d65259da85618…

MALICIOUS

PDF

54.4 KB Created: 2020-08-07 14:41:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6424795e4ccf0b74210a66ec5b1d2c41 SHA-1: 892514cb1ba9acd8863a5b518b89726654af4fdd SHA-256: a31d65259da85618fb7fc37e940964f29d2a901b6c648c721badee8928b37bbf
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=atto+notorio+sostitutivo+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the same redirector URL, suggesting the primary intent is to redirect the user to malicious infrastructure. No scripts were extracted from this sample.

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=atto+notorio+sostitutivo+pdf
    • http://files.jon-thompson.com/uploads/1/3/1/4/131438293/8410546.pdf
    • http://files.alden-moore.com/uploads/1/3/2/3/132303373/nuguw-wubidosakubikup-ditixedusewogud-zojazupibo.pdf
    • http://pozojuxix.amcpr.net/uploads/1/3/1/0/131070493/kusejajaxelupiw_nijen_juvanijewi_pumug.pdf
    • https://cdn.shopify.com/s/files/1/0431/8396/4324/files/64484773391.pdf
    • https://cdn.shopify.com/s/files/1/0430/1645/4305/files/90275174118.pdf
    • https://cdn.shopify.com/s/files/1/0430/8742/9785/files/3513424071.pdf
    • https://cdn.shopify.com/s/files/1/0428/4894/4295/files/13114741578.pdf
    • https://cdn.shopify.com/s/files/1/0431/4795/2294/files/23225458182.pdf
    • https://cdn.shopify.com/s/files/1/0433/2588/2518/files/analytical_mechanics_fowles.pdf
    • https://cdn.shopify.com/s/files/1/0437/6199/1841/files/casper_wy_weather_radar.pdf
    • https://cdn.shopify.com/s/files/1/0434/0737/6542/files/davejolagudup.pdf
    • https://cdn.shopify.com/s/files/1/0435/7970/3451/files/81263211033.pdf
    • https://cdn.shopify.com/s/files/1/0431/7567/4024/files/mawevijakifugoziwu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1046/5698/files/zavexobiwuvuwalijiluxipa.pdf
    • https://cdn.shopify.com/s/files/1/0434/2376/0536/files/21775832695.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_off00009874.bin
364f58ed384411e879abf5fa1e9a9eb634ece4bdc7667eb52482cc06187a3432		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9874 4844 bytes
font_01_sfnt_off0000a908.bin
89524ed5458cf0946643e809aec6aaa9389cb9049e73dfe259bda5a86fe77667		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA908 11012 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.