Malicious PDF — malware analysis report

Static analysis result for SHA-256 93fe6edd6f53055e…

MALICIOUS

PDF

64.6 KB Created: 2020-12-26 00:45:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80c5ab77f03df9c0389c25ecc4971268 SHA-1: 5bd99ff6b77e58600861352ff8c0d35c07cc1d81 SHA-256: 93fe6edd6f53055ea4d44ef2494bd1fbbd86c2c63ce7567e7815306859ef06e4
154 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a link farm, suggesting it's designed to host numerous external links. One of these links, 'https://trafficel.ru/strik?utm_term=iphone+maps+voice+navigation+not+working+in+car', is presented with a title related to iPhone maps, likely a lure for phishing or a scam. While no scripts were extracted, the PDF structure and link farm heuristic indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8377

Heuristics 4

  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafficel.ru/strik?utm_term=iphone+maps+voice+navigation+not+working+in+car
    • https://petavigavixate.weebly.com/uploads/1/3/4/4/134459614/finujokuvibadu.pdf
    • https://static.s123-cdn-static.com/uploads/4419637/normal_5fc87f499820e.pdf
    • https://cdn-cms.f-static.net/uploads/4368731/normal_5fa76bfc73bea.pdf
    • https://tokuniti.weebly.com/uploads/1/3/4/3/134331772/240c018f.pdf
    • https://jejejawoberug.weebly.com/uploads/1/3/4/7/134768650/luzotiwivulezev.pdf
    • https://mirupativex.weebly.com/uploads/1/3/4/3/134368078/3886864.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/92a960ed-d74d-4c48-af19-90122087fed6/sprenger_stadium_avon_ohio.pdf
    • https://uploads.strikinglycdn.com/files/38474755-a57c-4aaa-af66-1823e5592aac/riwunatisis.pdf
    • https://uploads.strikinglycdn.com/files/3706e245-84ac-4e2b-9b22-feaea0f7dd2b/breakfast_at_tiffanys_costume.pdf
    • https://s3.amazonaws.com/gupuso/nebojoluzu.pdf
    • https://s3.amazonaws.com/juzinaramip/vekelepodusagatoxolinugi.pdf
    • https://uploads.strikinglycdn.com/files/a801213c-cbce-4369-8f93-7585cd63904d/pexozar.pdf
    • https://uploads.strikinglycdn.com/files/0012633e-4bc1-41e2-857c-e1e0247cd749/motorcycle_mall_inventory.pdf
    • https://uploads.strikinglycdn.com/files/bb4dca97-ef7e-46ca-9f84-5c7068d626dd/at_t_mobile_security_settings.pdf
    • https://uploads.strikinglycdn.com/files/b1360188-fc5c-4ff5-ac7e-ec0b52786362/68979856849.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ead2.bin
2db5da0573623a009506ddd9a72e9462bce293519e85358c501f618f52949a2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEAD2 5468 bytes

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