Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b7e127fee418d54…

MALICIOUS

PDF

68.3 KB Created: 2021-02-23 01:43:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: e27733fab95efffdc95742ddf35a7de4 SHA-1: ecb7da5fc3e7dc260b66e7792a68e978e0eefcbb SHA-256: 1b7e127fee418d542a0a95fc0d5d740b780eb7cdf7b67fc941b29d3697a752eb
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URL pointing to 'bologen.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily garbled, suggests a lure related to 'Juegos del hombre araña lego gratis' (Spider-Man Lego games free), indicating a social engineering tactic to entice users to click the malicious link.

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://bologen.ru/strik?utm_term=juegos+del+hombre+ara%25C3%25B1a+lego+gratis PDF link annotation
    • http://kataeta.club/sipujasi7y1sa.pdfIn PDF document text
    • http://christinaanddavid2019.com/go_ask_alice_download_free48lqe.pdfIn PDF document text
    • http://momentshop.website/cartoon_network_racing_game2ounw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378620/normal_5fe0d1b171eca.pdfIn PDF document text
    • https://cdn.sqhk.co/fomanazoravu/Ijbjifx/16067365557.pdfIn PDF document text
    • https://cdn.sqhk.co/xumirikebixo/ihuDThc/22273876919.pdfIn PDF document text
    • https://cdn.sqhk.co/xuwadezab/jTijgdC/fitevisudowotavafipudagu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388613/normal_602cb613573ed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405193/normal_6014d935cff10.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495994/normal_6004f52e6b9f9.pdfIn PDF document text
    • http://vienvozvrat.site/859969482297yvn5.pdfIn PDF document text
    • http://runavowof.22web.org/ubuntu_for_dummies.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/jovekus/97187016974.pdfIn PDF document text
    • https://s3.amazonaws.com/nefomojuwet/vadixozukubudujaseve.pdfIn PDF document text
    • http://xekifoxudiduvaf.rf.gd/91354030806.pdfIn PDF document text
    • https://s3.amazonaws.com/jevopemosod/asus_zenfone_5z_android_pie_review.pdfIn PDF document text
    • https://s3.amazonaws.com/mefovu/dejarunujomotijaka.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_off0000c9d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9D5 5580 bytes
SHA-256: e43f087b10e232a3eeeaf19c398cba6a8697692301245aac9c7cefe3dbb62c09
font_01_sfnt_off0000dc51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC51 11508 bytes
SHA-256: 0f18af13b43fe170da57d111811fad6f35d94316d00850bcb770d3b787de5758

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