Malicious PDF — malware analysis report

Static analysis result for SHA-256 32595ab7da1ed579…

MALICIOUS

PDF

35.3 KB Created: 2020-08-21 01:42:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a74e2ac5a1c67471cc6541f247bc63e5 SHA-1: b2c449a9cb7b222a8da5da3c3bdcdd8cccc5cbe4 SHA-256: 32595ab7da1ed57961d1923bd27fc188ff875e48b37a1d3298702079180133a4
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The primary malicious URL, https://ttraff.com/pify?keyword=childhood+rauf+and+faik+song, is likely used to funnel victims to a phishing or malware site. The document body contains a mix of seemingly random text and embedded URLs, further supporting the link farm and redirection attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=childhood+rauf+and+faik+song
    • http://files.graceandmercyministry.org/uploads/1/3/0/7/130738696/narerove_samazowobudexer_bodupibina_zogemexa.pdf
    • http://veketu.maciejbielawski.com/uploads/1/3/1/4/131406269/kotivigodow_bulanu_zezebijinim_zubefota.pdf
    • http://kilufep.mrgarcia.org/uploads/1/3/0/8/130814328/8964810.pdf
    • http://donura.cleansheetsmfg.com/uploads/1/3/2/7/132740763/mikivepow_welevutox_nedolida.pdf
    • http://files.oliviamcgiff.com/uploads/1/3/1/1/131163959/powowes_tazelepogupe.pdf
    • https://cdn.shopify.com/s/files/1/0448/2121/7442/files/az_400_dumps.pdf
    • https://cdn.shopify.com/s/files/1/0438/9958/4680/files/beekeeping_project_report.pdf
    • https://cdn.shopify.com/s/files/1/0434/0737/6546/files/49562203108.pdf
    • https://cdn.shopify.com/s/files/1/0430/3477/1607/files/76758876819.pdf
    • https://cdn.shopify.com/s/files/1/0439/1125/0075/files/jemalijidepiledal.pdf
    • https://cdn.shopify.com/s/files/1/0430/9080/4893/files/9831281458.pdf
    • https://cdn.shopify.com/s/files/1/0439/1724/6632/files/senesivazijesepu.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_off00004c05.bin
d5fdf3cc466a2e330f93512b5cb71df4ec79c1d27bc28221941aca43c62ff3c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C05 5140 bytes
font_01_sfnt_off00005d75.bin
80044de1b1c5bc5dc9cdd1a66972e20aa91605fb9df02a2c07cb00540f1c8053		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D75 10308 bytes

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