Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d942b8bd085bb48…

MALICIOUS

PDF

74.4 KB Created: 2020-12-14 19:31:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: f747612d0cdaf7464b4dee80c86b500b SHA-1: c37f08cf0127a504bf3438b1afcd4096bd25b144 SHA-256: 8d942b8bd085bb48dad7aec6357e784ceb4099990af4be1e65af45cf483570e7
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains numerous external links, with a critical heuristic identifying it as a link farm. One prominent URL, 'https://traffine.ru/aws?utm_term=call+of+cthulhu+character+sheet+maker', suggests a lure related to a game, likely to entice users to click. The presence of multiple external PDF links, including 'https://goxanakevixi.weebly.com/uploads/1/3/4/8/134857001/wifato-regusorepa-wowexisetibuw.pdf', indicates a potential for distributing further malicious content or engaging in phishing activities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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
  • 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://traffine.ru/aws?utm_term=call+of+cthulhu+character+sheet+maker PDF link annotation
    • https://goxanakevixi.weebly.com/uploads/1/3/4/8/134857001/wifato-regusorepa-wowexisetibuw.pdfIn PDF document text
    • https://jogojirodatu.weebly.com/uploads/1/3/4/3/134321770/datironobil-likuwinomip.pdfIn PDF document text
    • https://wesoxuzepa.weebly.com/uploads/1/3/4/3/134372623/ridux.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/tawovojo/solve_equation_by_substitution_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/magapeguwabe/kovuvupagufefezadowuwekek.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbfdb415687f52b6b7b2913/t/5fc276c218e72e5fdb274917/1606579907889/32861941270.pdfIn PDF document text
    • https://s3.amazonaws.com/tibitexil/noninixijebetibi.pdfIn PDF document text
    • https://s3.amazonaws.com/batiku/xadivepikavevibezor.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/bookkeeping_exam_papers.pdfIn PDF document text
    • https://s3.amazonaws.com/vovopafubipu/71135068773.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzumeb/navy_officer_uniform_allowance_form.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzaganog/chernobyl_disaster_summary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a00bd0f-17dd-4f3f-b8ad-4d04abe8c384/do_you_italicize_websites_in_chicago_style.pdfIn PDF document text
    • https://s3.amazonaws.com/fewunadupop/37660381066.pdfIn PDF document text
    • https://s3.amazonaws.com/sajezife/excel_shortcut_number_format_comma.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d5f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5F3 4936 bytes
SHA-256: 523c3395532828ee245947f9a51a7343786fa1b6484652da29ec2f01ba248db6
font_01_sfnt_off0000e6c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6C3 11636 bytes
SHA-256: ae1bcaa2c325c7cb6131984f1d9a339f297100fb4cc92ad153d2fbc9baec2ce2
font_02_sfnt_off00010e49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E49 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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