Malicious PDF — malware analysis report

Static analysis result for SHA-256 f56ed07cad00e3f3…

MALICIOUS

PDF

53.6 KB Created: 2020-11-18 06:41:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9a44b62207b388cc4c4d25133b8fe3ef SHA-1: 476282f25646c846cf4e991f1a3c8e70729fa169 SHA-256: f56ed07cad00e3f30c89d126b7b32e15396822e652da1e6fb96c66e2a2cc166e
212 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded URLs, with one critical heuristic firing indicating it links to known malicious redirector infrastructure. Another critical heuristic identified a PDF link farm, suggesting an attempt to direct users to numerous external resources. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9265

Heuristics 4

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://gettraff.ru/strik?utm_term=chipper+and+sons+lumber+co
    • https://rakamukomegu.weebly.com/uploads/1/3/2/6/132681656/ladefubit-tafojapumepokan-vowupe-zidedix.pdf
    • https://lifafogiter.weebly.com/uploads/1/3/4/3/134321186/visimife_pajum_lulobakuwowiz.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/mamukawaxatali/marina_abramovic_performance_new_york.pdf
    • https://uploads.strikinglycdn.com/files/97d3a778-641a-4993-ba3b-e318ca8e7d0a/4432320134.pdf
    • https://uploads.strikinglycdn.com/files/1773d759-ef90-4ced-a26e-2789e533928f/pathfinder_unwitting_ally.pdf
    • https://uploads.strikinglycdn.com/files/7bcf2be4-9597-4e62-a8c1-a57ac9920d6e/margot_anand.pdf
    • https://s3.amazonaws.com/figugipopar/the_woods_coffee.pdf
    • https://uploads.strikinglycdn.com/files/fd9029ab-f0e2-466c-b0f0-be8378f1ffdd/dukavuwagizixotojedovujil.pdf
    • https://uploads.strikinglycdn.com/files/54658f87-3413-475b-a76e-bebf929a1706/stardew_valley_clint_ore.pdf
    • https://uploads.strikinglycdn.com/files/1be8b37c-5e86-41f5-bf3a-44067c8f164c/clasificacion_de_las_cirugias.pdf
    • https://s3.amazonaws.com/gixawetopoli/jitexasuxaxu.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bf52.bin
81ec003b3534d0fb9e93c6b2ebdd599069b49c9f2c34e9962fb73806dc254227		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBF52 5356 bytes

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