Malicious PDF — malware analysis report

Static analysis result for SHA-256 a614a89913da7b14…

MALICIOUS

PDF

74.8 KB Created: 2021-02-04 00:48:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 3f1c6eb967068741473b8f16ca441872 SHA-1: 28d8767492debcaf04ee56170ea2128381691aef SHA-256: a614a89913da7b14a964ab920a85fd88feb51287b002ecb795faa402af9458e6
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'bologen.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains strings related to 'getactivespreadsheet google script', suggesting a lure to a fake service or tool.

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/wb?keyword=getactivespreadsheet%20google%20script PDF link annotation
    • http://ompala.store/online_to_autocad_converter_free_download_with_crack5fmw7.pdfIn PDF document text
    • http://coolstudent.space/how_to_win_at_mancala1hcgn.pdfIn PDF document text
    • http://generatorsale.ru/17354236526yweqo.pdfIn PDF document text
    • http://lnstagramcopyrightmanagement.com/90621049291cpi7a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462056/normal_5fcd2c59d4b5c.pdfIn PDF document text
    • http://max-lifting.store/dopenajimowobimaniweboggr62.pdfIn PDF document text
    • http://top-shop-store.website/fuzezozaxejeponodigutolukb0wsb.pdfIn PDF document text
    • http://beremoter.online/67555477688ql6mu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459477/normal_600ddcdfbc206.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/nagev/ac_market_latest_apk_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/wupuxus/kasajazuzinafitof.pdfIn PDF document text
    • https://s3.amazonaws.com/fulazelof/88500831652.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxulikiwab/ncert_class_8_maths_rational_numbers_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/xefezesebusu/badshah_telugu_movie_video_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/xidazeze/vavovexilotegenuta.pdfIn PDF document text
    • https://s3.amazonaws.com/vutame/ganasedakiterusotutilete.pdfIn PDF document text
    • https://s3.amazonaws.com/lekizopiloref/balboa_500z_hot_tub_manual.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_off0000e569.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE569 5428 bytes
SHA-256: 9d24deeeb13ece5c491c0e60629e58543fda7406f96ef29745c478bcb0aaec4c
font_01_sfnt_off0000f7e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7E4 11308 bytes
SHA-256: f01141c07410aa6522262fc9e7719751f31ca1c5931cf48d836b246deed32672

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