Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c00017a73ad965d…

MALICIOUS

PDF

61.2 KB Created: 2020-12-11 19:21:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 365195015b82904e5595bf5d25891839 SHA-1: dc2a4993c13ca866d598de8677afffac46e373ee SHA-256: 1c00017a73ad965d219b27240c0ce2bac8260035d02378b1999a453510cb80c4
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://traffking.ru/aws?utm_term=video+ashilla+blink+masih+cinta'. This URL is the primary indicator of malicious intent, suggesting the document is designed to lure users to a compromised site. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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.
  • 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://traffking.ru/aws?utm_term=video+ashilla+blink+masih+cinta In PDF document text
    • https://cdn-cms.f-static.net/uploads/4379722/normal_5f8b2d949dcbf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463552/normal_5fab285d3cfb5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408593/normal_5fcedcecd1140.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tapexiw/limefapelajukitibikedo.pdfIn PDF document text
    • https://s3.amazonaws.com/ladiwuzetawedi/petenosuxenoputolaseni.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/arduino_compatible_ide_with_esp8266.pdfIn PDF document text
    • https://s3.amazonaws.com/lonozote/dioses_griegos.pdfIn PDF document text
    • https://s3.amazonaws.com/vukumesoj/bovat.pdfIn PDF document text
    • https://s3.amazonaws.com/zarusegibitumet/histology_quiz_anatomy_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/bodajaku/42389596858.pdfIn PDF document text
    • https://s3.amazonaws.com/xetasif/beth_moore_daniel_study_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/dewazewokib/46907751612.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuduwonifa/boot_camp_services_windows_7.pdfIn PDF document text
    • https://s3.amazonaws.com/gekixadonuru/south_film_1.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_off0000b651.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB651 5252 bytes
SHA-256: ef51f98758226a634a2cf0256238b860b6b5f3332c229441f0cde0157dcd5572
font_01_sfnt_off0000c80c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC80C 9296 bytes
SHA-256: 640b34fb42698aaccaaeb83b8a85723760568d2d1eceb48b0b4b360416adaa7b

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