Malicious PDF — malware analysis report

Static analysis result for SHA-256 bab67ccc0fab6b5e…

MALICIOUS

PDF

71.7 KB Created: 2020-12-26 23:06:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 9e75c39a028028b47870126aa5e11b85 SHA-1: bd29dad0c198cc8edd0525a922bc860f92e133bf SHA-256: bab67ccc0fab6b5e66efcb1255b18dfe758550b029c0fe2d5f85aa4b33ff4625
154 Risk Score

Malware Insights

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

The file is a PDF document that contains a link to a known malicious redirector. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URL likely serves as a lure to a phishing or malware distribution site, disguised as a business worksheet.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/123?utm_term=business+organizations+worksheet In PDF document text
    • https://gejatovuri.weebly.com/uploads/1/3/1/4/131406669/5833901.pdfIn PDF document text
    • https://womazineput.weebly.com/uploads/1/3/4/8/134895737/9410822.pdfIn PDF document text
    • https://sufepupebesi.weebly.com/uploads/1/3/4/6/134636280/9451927.pdfIn PDF document text
    • https://wusunipusu.weebly.com/uploads/1/3/4/3/134320006/pobuk.pdfIn PDF document text
    • https://cdn.sqhk.co/jeposanop/Fhitjan/slicers_hoagies_fort_myers_fl.pdfIn PDF document text
    • https://cdn.sqhk.co/boketumejipa/bhgNThT/cute_drawings_of_animals_step_by_step.pdfIn PDF document text
    • https://zowozenuzaf.weebly.com/uploads/1/3/1/8/131857278/980fa603a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406775/normal_5f96cc4956884.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/vebogotexaf/femul.pdfIn PDF document text
    • https://s3.amazonaws.com/pomaxa/tobaxu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dfff3e11-236e-4325-8afc-1ebfb7a8c986/winaxisesizedane.pdfIn PDF document text
    • https://s3.amazonaws.com/midaguvimabof/58024245091.pdfIn PDF document text
    • https://s3.amazonaws.com/bepukuba/mp_map_district_wise.pdfIn PDF document text
    • https://s3.amazonaws.com/rujabepifar/renew_online_servicearizona.com.pdfIn PDF document text
    • https://s3.amazonaws.com/vogubivajavofu/nutilefuvuwegilezatamep.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/56221107840.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_off0000dc7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC7F 5172 bytes
SHA-256: 6f214d2ec7b98b4b2b735de7fefdd41303647ded62916583e20f43c2ce0d8100
font_01_sfnt_off0000ee31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE31 10420 bytes
SHA-256: 36aac73b7147cc7d82042ffc5e70215345591dd2f1f675f7238275e3b11fbddc

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