Malicious PDF — malware analysis report

Static analysis result for SHA-256 52d0afa0fa8369b7…

MALICIOUS

PDF

75.3 KB Created: 2020-11-18 08:04:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 45dada684ab65af5f9f123ecaeadd9f4 SHA-1: 087e8024944fa564b85de71a251ff349ac4d01a5 SHA-256: 52d0afa0fa8369b716d383f1727779a2495b0db546bdef8e591fd6587830508b
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 'ggtraff.ru'. ML classification and ClamAV also flagged the file as malicious. While the document body is heavily obfuscated, the presence of a malicious URL strongly suggests a phishing or malware delivery attempt, likely initiated via spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://ggtraff.ru/123?utm_term=slim+pro+mint+patch+reviews In PDF document text
    • https://cdn-cms.f-static.net/uploads/4369765/normal_5f8f92e15af44.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/jeromopelurab/27587287952.pdfIn PDF document text
    • https://s3.amazonaws.com/xezonijida/printable_calendar_ppt_template.pdfIn PDF document text
    • https://s3.amazonaws.com/punagilelabon/water_electrolyte_imbalance.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2520f695-114d-48aa-8a3d-d3b8e4890c30/doom_movie_free_online.pdfIn PDF document text
    • https://s3.amazonaws.com/tulosa/2013_calculus_ab_free_response.pdfIn PDF document text
    • https://s3.amazonaws.com/padadutiseni/crossing_lines_imdb_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/73306380185.pdfIn PDF document text
    • https://s3.amazonaws.com/tevigotu/armor_games_crush_the_castle_2.pdfIn PDF document text
    • https://s3.amazonaws.com/kigavanus/77695225415.pdfIn PDF document text
    • https://s3.amazonaws.com/suzitivasekoga/planet_worksheets_3rd_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/jovekus/chapter_9_chemical_names_and_formulas_221_key.pdfIn PDF document text
    • https://s3.amazonaws.com/xoxaneral/tesol_module_2_quiz_b_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/savukojubusum/fha_streamline_worksheet_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/robumuduluwise/maruzegiz.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_off0000e932.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE932 5428 bytes
SHA-256: 8f5507b540f1e6154a81b708ad13acc9f2b845bec1f42db6f61dad424ded5267
font_01_sfnt_off0000fb88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB88 10708 bytes
SHA-256: 063a2d97d497cb4baff3d2f08f33e821503c805829aa8d2a1a15eba54451980c

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