Malicious PDF — malware analysis report

Static analysis result for SHA-256 1eb5bb6e52217a47…

MALICIOUS

PDF

89.2 KB Created: 2021-02-08 22:31:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: f0d4f745ec5da482c62eee1a2b5a223f SHA-1: 3482838ca823c68e2369057dd5a8a686608eaedd SHA-256: 1eb5bb6e52217a472c53306384c8a6946b72fa34acd6d34622c508fff74a7caf
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of multiple external URLs, including one that appears to be a phishing lure, suggests the document is designed to redirect users to potentially harmful sites. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or malware distribution attempt.

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://leonvi.ru/aws?utm_term=rightly+guided+caliphs+in+order PDF link annotation
    • https://cdn.sqhk.co/wimakebibane/DFWCjii/download_metal_army_vs_us_zombie_mod_apk.pdfIn PDF document text
    • http://cardioactiveitalia.site/hootsuite_vs_social_reportwck4o.pdfIn PDF document text
    • http://logvoz.ru/57740438913zrxli.pdfIn PDF document text
    • http://bostpolamos.site/lti_terases_grdasldd2l.pdfIn PDF document text
    • https://cdn.sqhk.co/faruretekiv/jjhft1B/out_of_the_loop_among_us.pdfIn PDF document text
    • https://cdn.sqhk.co/niserutom/RhhTRiJ/ates_ve_su_oyunu_oyna_oyun_kolu.pdfIn PDF document text
    • http://alexsaf.ru/costeo_directo_y_absorbente_excelovtzx.pdfIn PDF document text
    • https://cdn.sqhk.co/jagojixego/bY1Hgjl/bonefug.pdfIn PDF document text
    • http://ru-payment.casa/fm19_corner_tacticmrb2c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wusozugidiwe.rf.gd/31587966800.pdfIn PDF document text
    • https://s3.amazonaws.com/zetituri/piano_sheet_music_popular_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/gofilafixu/audacity_windows_10_64_bit.pdfIn PDF document text
    • http://balazetesu.epizy.com/bazelgeuse_theme_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/palikuvexake/8392494779.pdfIn PDF document text
    • https://s3.amazonaws.com/xugigabitulu/84891342737.pdfIn PDF document text
    • http://zosuvupetod.epizy.com/dojifitezadodemu.pdfIn PDF document text
    • http://gozosowizopuk.rf.gd/49117744847.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_off000121af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121AF 5444 bytes
SHA-256: 249b71a52b2cf42f3c551a5b6866901b950b637baa58046d6b9fe9e5050f522c
font_01_sfnt_off0001343a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1343A 10456 bytes
SHA-256: 76aa5fc02262e5e8e821dd7566559279cab90b548af2082179ceed32fab97b6b