Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd08fdaf9a91740f…

MALICIOUS

PDF

65.4 KB Created: 2020-11-27 01:04:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: d88ea13dab924ca760f1dfed025d9252 SHA-1: 46f297dfb83fd90858f3795b52d6cf6ba3173d5b SHA-256: fd08fdaf9a91740fbc36ecebba6e3806078f3ee802a73c527fad20e51b43d0df
176 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File T1059.007 JavaScript

This PDF file was detected as malicious by ClamAV and an ML classifier. Heuristics indicate it employs social engineering tactics, specifically a 'ClickFix' lure and a 'Browser extension/update installation lure,' to trick users into executing commands or installing unwanted software. The embedded URL, https://traffset.ru/strik?utm_term=th8321wf1001%252Fu+installation+manual, is likely part of this malicious campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://traffset.ru/strik?utm_term=th8321wf1001%252Fu+installation+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366017/normal_5f8750d30fd49.pdfIn PDF document text
    • https://nujusokomofevak.weebly.com/uploads/1/3/4/5/134503883/sapoful.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366003/normal_5fa2c06f5d575.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447267/normal_5fc0146b1f373.pdfIn PDF document text
    • https://gekitudijelal.weebly.com/uploads/1/3/4/2/134265938/bebazimuxi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459625/normal_5fafffe6358f8.pdfIn PDF document text
    • https://soxixafefude.weebly.com/uploads/1/3/4/4/134434462/48fd013227c051.pdfIn PDF document text
    • https://ralokokotozupar.weebly.com/uploads/1/3/4/3/134340958/vezobesaxizobekaxa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486984/normal_5fa9a55e13f5b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/beb695e0-dcdc-4163-adb4-a64baeaa0a1c/6039901594.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d70f9e53-71a0-4692-967d-01b8324d1a8d/sonic_1_rom_size.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88e4d6b4-ec89-4e85-bfd5-92249475c0c1/4231642388.pdfIn PDF document text
    • https://s3.amazonaws.com/savukojubusum/51871182940.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d0296ce-c0f2-4496-a531-4b6507bffb9a/31544630428.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c2f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2F2 5672 bytes
SHA-256: 8e171fda8a0f9f2f7aa6eee16ff24474589ea3fa9b97fbfb54ddd0acad8bac56
font_01_sfnt_off0000d63e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD63E 10240 bytes
SHA-256: 239db0c5762f2f9f4a088cc5c2d8f986ff5100fd8192050ac50be791c4481c59

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