Malicious PDF — malware analysis report

Static analysis result for SHA-256 30a427b48c17e429…

MALICIOUS

PDF

57.1 KB Created: 2020-11-16 13:07:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d08776462cbcf5a3cffaf2a995a53a75 SHA-1: 20d85df99f69d13fc0061480ca99d5741e24c647 SHA-256: 30a427b48c17e429d64122853011f98b2537516b08f31cc6438f23f9086033a6
212 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The embedded URLs, particularly the one pointing to 'ggtraff.ru', are known to be associated with malicious activity. The presence of numerous links suggests an attempt to lure users to external, potentially harmful, sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9848

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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://ggtraff.ru/strik?utm_term=cutlip+and+center+s+effective+public
    • https://sefedajexoxoj.weebly.com/uploads/1/3/4/4/134479396/600912fb3d7.pdf
    • https://cdn-cms.f-static.net/uploads/4482872/normal_5fb02a20dfc64.pdf
    • https://durewisopugus.weebly.com/uploads/1/3/4/3/134369166/gudupetisediruvaguw.pdf
    • https://kogemamol.weebly.com/uploads/1/3/4/4/134487898/3184331.pdf
    • https://cdn-cms.f-static.net/uploads/4365659/normal_5f87dea2130b1.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/ebadba2f-fc00-4de6-ba62-a8cb431b976a/da_bomb_the_final_answer_hot_sauce.pdf
    • https://uploads.strikinglycdn.com/files/9a60809c-72ef-4833-ba7b-2eaa939d8d84/100_startup.pdf
    • https://uploads.strikinglycdn.com/files/de28a280-2c40-409f-999a-0bf42c576e07/47318507817.pdf
    • https://uploads.strikinglycdn.com/files/0aa6d5c4-b73b-4846-9766-ee2b36f4ed52/46736318501.pdf
    • https://uploads.strikinglycdn.com/files/7f510c7f-8abb-4a9c-9a76-53f665a2670c/67249512004.pdf
    • https://uploads.strikinglycdn.com/files/0d9533c8-2ffc-43dc-ad76-2307fcc35322/autocad_commands_2018.pdf
    • https://uploads.strikinglycdn.com/files/fc7b3510-1753-4b84-a7af-e30121061a4f/derafobatimevobisifugu.pdf
    • https://uploads.strikinglycdn.com/files/4730506c-5524-462a-ae1c-11d951302db4/52472865427.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cd8c.bin
3d45b7c0bdb3e644e01064e2712be1d128b0ca08a89e2a401720e535d8e85e3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCD8C 5252 bytes

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