Malicious PDF — malware analysis report

Static analysis result for SHA-256 99e084ae6a217820…

MALICIOUS

PDF

66.6 KB Created: 2021-01-11 22:41:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: c9534602f0f8686b91e73e4610ee4ed4 SHA-1: cbd001bcca4fe4a73c7048240e7fe33e10a7a8ff SHA-256: 99e084ae6a217820518dab9eab39269b054f2624e56501ac4d41d8b7ef0aad2f
152 Risk Score
Tags
free-cdn-ebook-manual-lure

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://cctraff.ru/aws?utm_term=autodesk+sketchbook+pro+windows+10+free'. This indicates the document's primary purpose is to lure the user to a potentially harmful website. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9829

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://cctraff.ru/aws?utm_term=autodesk+sketchbook+pro+windows+10+free In PDF document text
    • https://wijimoki.weebly.com/uploads/1/3/4/4/134485243/d3b791014f.pdfIn PDF document text
    • https://cdn.sqhk.co/dusimefosix/fkkjfhg/gilulupegujuta.pdfIn PDF document text
    • https://cdn.sqhk.co/busoleva/ZiihjfJ/gesorusetewexor.pdfIn PDF document text
    • https://sobalapufutagum.weebly.com/uploads/1/3/4/6/134601001/2503871.pdfIn PDF document text
    • https://maladekokox.weebly.com/uploads/1/3/4/7/134745457/rapopafifireja.pdfIn PDF document text
    • https://cdn.sqhk.co/sozaxejiv/gh3Uje3/wordbrain_2_movies_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/kifuzopeko/ajaifif/jiweravosoge.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409000/normal_5f946ade0a5d3.pdfIn PDF document text
    • https://guburumo.weebly.com/uploads/1/3/4/3/134322172/dajipevexobe_zubokuler.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/jezobasit/80671160895.pdfIn PDF document text
    • https://s3.amazonaws.com/sugowubuf/walhalla_south_carolina_map.pdfIn PDF document text
    • https://s3.amazonaws.com/jupevuxirapi/suspend_sc_insecticide_safe_for_pets.pdfIn PDF document text
    • https://s3.amazonaws.com/bededuxotulapil/16031037928.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_off0000d385.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD385 5480 bytes
SHA-256: 7b4f94f97c078842ea52102fc696f2754f3b9ba9c42de2e01b4bb7511b5c80d0
font_01_sfnt_off0000e63f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE63F 10796 bytes
SHA-256: b634c349e9f61bb7334058bf9da4631b024e1b3d6376a903061e13280eef9d21

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