Malicious PDF — malware analysis report

Static analysis result for SHA-256 694701d90aa7a375…

MALICIOUS

PDF

81.1 KB Created: 2021-03-05 10:31:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 82088b80741e00776ec361e61490b2c6 SHA-1: 1afa357cb3d9f1f996992bf2868be8c3f932f13a SHA-256: 694701d90aa7a3752f43ece75dbe1b7560619005ecad90cc1c7b1d3d4af4db95
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 presence of an external URI pointing to 'fokemale.ru' suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URI are indicative of a phishing lure, likely designed to trick users into visiting 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://fokemale.ru/award?keyword=indian+military+code+of+conduct PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4492593/normal_60027f2c65317.pdfIn PDF document text
    • http://masalev.ru/vuvanupokqv4g8.pdfIn PDF document text
    • http://ro-shop.space/legion_leatherworking_guide_1-_800o7m9m.pdfIn PDF document text
    • http://4d-5d.com/lamopuwejuwrzdh.pdfIn PDF document text
    • http://probmake12.xyz/outlander_diana_gabaldon_show12djb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470409/normal_5fcb47493af8f.pdfIn PDF document text
    • http://setofexperience.site/bast_top_trending_videos_worldwideyc4ee.pdfIn PDF document text
    • http://domavera.ru/answering_interview_questions_on_confidentialityylxhv.pdfIn PDF document text
    • http://instahelpforbusiness.com/tarot_card_combinations_and_meaningsxus7y.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/firudegix/monthly_office_expenses_excel_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/dojonuta/89606943841.pdfIn PDF document text
    • https://s3.amazonaws.com/zatazewoz/88495217976.pdfIn PDF document text
    • https://s3.amazonaws.com/bewibiwat/50047148048.pdfIn PDF document text
    • https://s3.amazonaws.com/mawesenasijoser/91776455178.pdfIn PDF document text
    • https://s3.amazonaws.com/benubapopikaj/oanda_currency_converter_apk.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f4e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4E0 4908 bytes
SHA-256: 4cf448926da6bbfa0b8110c38189920e887d2dcce7f0274a53d600912303479e
font_01_sfnt_off00010572.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10572 10444 bytes
SHA-256: 2d688457b751c3a92ade4065c7ce42192d47ca9512036474e744939dd5eb8711
font_02_sfnt_off00012917.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12917 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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