Malicious PDF — malware analysis report

Static analysis result for SHA-256 1feec54c8008ae2f…

MALICIOUS

PDF

73.7 KB Created: 2021-02-21 18:30:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: f56f74375794797f38937ccd81ce1583 SHA-1: 6a85e4777e83fd3e509e1a89181d43411cc3e879 SHA-256: 1feec54c8008ae2f0ff28fa3fa83915a0bcfdede87523023eb93df070eb160ce
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing lure, likely attempting to redirect the user to a malicious site.

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
  • 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://jottigo.ru/strik?utm_term=what+is+the+main+point+of+the+sisyphus+myth PDF link annotation
    • https://cdn.sqhk.co/tivuzofep/TE1Dgfm/gogajasotowijefaz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489257/normal_6022c3662c0bb.pdfIn PDF document text
    • http://sekijad.iblogger.org/the_wifes_lament_summary.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415331/normal_5fc9cbfc0d760.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369158/normal_6014fa049ba9f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378379/normal_5fd61f52c3c01.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391920/normal_5fc6b821dd594.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391602/normal_602b77469445d.pdfIn PDF document text
    • https://cdn.sqhk.co/dodagirojep/cAcywgf/anime_studio_story_review.pdfIn PDF document text
    • http://sexugaweguko.iblogger.org/canoscan_lide_210_driver_windows_xp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375528/normal_60207b8274eb7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xeziribosivamis.epizy.com/solved_aptitude_questions_and_answers_for_accenture.pdfIn PDF document text
    • http://jugefewaxuxuf.epizy.com/kikigimowawopilivapakelov.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_off0000e532.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE532 5128 bytes
SHA-256: eae20f3249a6faf9f4acfb5d034944dc44c7d24c0b02c7d2063b6c73d74f7fdb
font_01_sfnt_off0000f698.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF698 10308 bytes
SHA-256: 9558f3aa09a8f7b16991cf6eaf04ab221422b232bec376b851127611aff199bd