Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9ad75f74ba15d5c…

MALICIOUS

PDF

63.5 KB Created: 2020-12-16 21:47:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 88c8bd9fe004dcf52b73c6b7701f76c3 SHA-1: 716976a45ee6e00d84572ef46c9a7e00273e38df SHA-256: d9ad75f74ba15d5c8f65e2f9cb7bb2a37c9a641d76c184d4cfc4bba138e9c48b
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://gettraff.ru/123?utm_term=waves+study+guide+answers'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the presence of a malicious URL indicates an attempt to lure the user to a compromised site, consistent with phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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.
  • 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://gettraff.ru/123?utm_term=waves+study+guide+answers In 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://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf54433c6ccf69f3553dfe/1606374468173/xikugodubusazodi.pdfIn PDF document text
    • https://s3.amazonaws.com/rexogeguxosix/48167295031.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e92a0a2757459be2ed0b/t/5fc1c312bc819f1cf41a325b/1606533907674/zilipobuwaso.pdfIn PDF document text
    • https://s3.amazonaws.com/jeromopelurab/78753895745.pdfIn PDF document text
    • https://s3.amazonaws.com/mokuwanibof/38501563687.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6e663bcf5f06bcb75839b/t/5fd1c6a0d97b572b89da6978/1607583395837/59432352638.pdfIn PDF document text
    • https://s3.amazonaws.com/ragejufa/gold_text_template_after_effects.pdfIn PDF document text
    • https://s3.amazonaws.com/jepavilutabilel/temelemumuge.pdfIn PDF document text
    • https://s3.amazonaws.com/wizedumi/w3schools_angularjs_tutorial_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/leguvefu/pelobewazuvebaw.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdfa626457125654000842/1606285924318/fajemagetupuledek.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/business_english_lessons_free.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_off0000b03d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB03D 5000 bytes
SHA-256: d6f347bb87192081061a508523918596dd9e60ff7e246ec2fb3c2b784b5609f0
font_01_sfnt_off0000c15f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC15F 9920 bytes
SHA-256: d2ae2ba4a3b1d64fcdcc8568e08793fa5478030250f8be538cc1d8cbdf44f9d2
font_02_sfnt_off0000e320.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE320 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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