Malicious PDF — malware analysis report

Static analysis result for SHA-256 98d7863ebae35671…

MALICIOUS

PDF

65.6 KB Created: 2021-02-28 22:01:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: bd560e201f042ade1139aff4212a8db7 SHA-1: dbd9fa132e696cb7dbfa414cbc76a81dbb3a7171 SHA-256: 98d7863ebae35671c5593bc0815005684e4cd1c57625ac0c2416883f262b5729
154 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan' and an ML classifier indicating maliciousness. It contains a large number of external links, suggesting a link farm or SEO spamming operation. The primary malicious URL identified is https://botokaw.ru/strik, which is likely used to redirect users to further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9729

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://botokaw.ru/strik?utm_term=tp-link+tl-wr841nd+repeater+mode PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4459621/normal_601ba60a13bc2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448538/normal_602f83db48155.pdfIn PDF document text
    • http://nudevego.iblogger.org/repokuz.pdfIn PDF document text
    • https://cdn.sqhk.co/duwefetufe/gLKHOXX/mobile_manager_app_for_pc.pdfIn PDF document text
    • http://bibavovomid.22web.org/9099104358.pdfIn PDF document text
    • https://nedosadowizo.weebly.com/uploads/1/3/5/3/135347652/mibemutotafe.pdfIn PDF document text
    • https://cdn.sqhk.co/lisupixiwe/RhbSJR9/mumejemanoviwanupubasuxi.pdfIn PDF document text
    • https://gawokuvaz.weebly.com/uploads/1/3/4/6/134656265/dinewebigikiraviw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://biwosagamivi.myartsonline.com/how_to_install_first_alert_smoke__carbon_monoxide_alarm.pdfIn PDF document text
    • https://s3.amazonaws.com/tanapilamaxi/riello_oil_burner_motor_bearings.pdfIn PDF document text
    • https://s3.amazonaws.com/tisegovofu/91940143648.pdfIn PDF document text
    • http://gizejofak.epizy.com/ragetorupita.pdfIn PDF document text
    • https://s3.amazonaws.com/pusixa/gafovikag.pdfIn PDF document text
    • https://s3.amazonaws.com/radubozufiwo/81885576023.pdfIn 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_off0000e51d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE51D 3476 bytes
SHA-256: a5566134b36e4e9b1f7259f4d7fe52f69b826dc0120beb019dea0dbc06579113
font_01_sfnt_off0000f16b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF16B 5400 bytes
SHA-256: ef5f356af828227b08c9063385915c1cc80f1f5402866dcf205fbdeca62fe90d

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