Malicious PDF — malware analysis report

Static analysis result for SHA-256 89505f8812944d13…

MALICIOUS

PDF

205.3 KB Created: 2021-06-06 19:48:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 90fb74b283de7c044044ad30d5662e38 SHA-1: 6a51375d8cf7e4b708744260023e57c3ca065af6 SHA-256: 89505f8812944d136dc9b3c08fa3a6e883a6ad0aa5b5cdfc45923d43fdc9e129
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL that appears to be part of a phishing or scam attempt, masquerading as a search result for a biblical term. No scripts were extracted, but the presence of the malicious URL and the overall classification strongly suggest a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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://nomylo.ru/pbw?utm_term=que+significa+deuteronomio+en+la+biblia PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4407070/normal_5fec360b301d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485157/normal_5fd1ca073ff23.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426822/normal_606d0e115da5b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366655/normal_603dc8fa10bd4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443608/normal_5ff81ecd24647.pdfIn PDF document text
    • https://lerorenoj.weebly.com/uploads/1/3/5/3/135390996/caf3c39ea38.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472481/normal_6036f62109e78.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490274/normal_5fc95443a6afa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446496/normal_5fffc4b560635.pdfIn PDF document text
    • https://mawijazug.weebly.com/uploads/1/3/1/3/131380733/1488434.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384468/normal_60ba645f1d7c6.pdfIn PDF document text
    • https://wofigazidiw.weebly.com/uploads/1/3/1/4/131437722/b28a3f9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409095/normal_5ff2b11626d2c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377678/normal_5fe21e38032f0.pdfIn PDF document text
    • https://juladugalevatib.weebly.com/uploads/1/3/4/3/134385664/gijoton.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dawanitapix.pbworks.com/f/how_do_you_unlock_a_whirlpool_duet_front_load_washer.pdfIn PDF document text
    • http://bijinim.pbworks.com/f/dibeguvat.pdfIn PDF document text
    • http://gapufipi.pbworks.com/w/file/fetch/144541524/hp_officejet_6500a_clean_printhead.pdfIn PDF document text
    • http://xuwuziz.pbworks.com/f/how_to_do_visual_narrative.pdfIn PDF document text
    • http://vananizi.pbworks.com/f/how_to_raise_your_own_salary_napoleon_hill_free.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_off0002ee02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EE02 5544 bytes
SHA-256: 43b7ad4c4649f554c40650406035d912637a3630776d6997354579cc92c2db88
font_01_sfnt_off000300cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x300CB 12252 bytes
SHA-256: 6fcc17e266259dc10216da9078693aed20f19cb8baf5726a9f63c0f38921c091

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