Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e9f18f5f52ec83f…

MALICIOUS

PDF

69.6 KB Created: 2021-02-04 14:15:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 6e943fa068edd5caf94101f06ea53356 SHA-1: 0f887a69ea98d08f2f948f76db9438536c854ae2 SHA-256: 6e9f18f5f52ec83fdfc981f901769bc7bcfe45073e26c248da17315e6e4f5a37
96 Risk Score

Malware Insights

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

The PDF file contains a lure related to a 'Bombay dyeing bed sheets offer' and embeds an external URI pointing to a suspicious domain. ClamAV and ML classifiers flagged this file as malicious, indicating a phishing or trojan attempt. The embedded URL is the primary indicator of compromise.

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/aws?utm_term=bombay+dyeing+bed+sheets+offer PDF link annotation
    • http://toguvuveleguna.22web.org/pimune.pdfIn PDF document text
    • http://clientesdkb.com/friedel_crafts_acylation_on_phenolgeiy3.pdfIn PDF document text
    • http://yildirimotobursa.com/xofiropiremabafotogeziloya9d.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/moduluzuxikari/39958054422.pdfIn PDF document text
    • http://xoxepilazif.rf.gd/23025986356.pdfIn PDF document text
    • https://s3.amazonaws.com/xifabilejilab/muzoti.pdfIn PDF document text
    • https://s3.amazonaws.com/zafaronivaj/ios_12._4_for_iphone_5s.pdfIn PDF document text
    • http://lepeporiluvoxaj.epizy.com/3859255811.pdfIn PDF document text
    • https://s3.amazonaws.com/rodiligarexo/business_english_module.pdfIn PDF document text
    • http://xetojawik.epizy.com/37414612206.pdfIn PDF document text
    • https://s3.amazonaws.com/xixonu/kalai_vanakkam_song_free.pdfIn PDF document text
    • http://dikokek.epizy.com/zamenadatogokufuba.pdfIn PDF document text
    • https://s3.amazonaws.com/divikufifir/sibof.pdfIn PDF document text
    • http://tolerikaduvutef.rf.gd/fugepobeja.pdfIn PDF document text
    • https://s3.amazonaws.com/samopakamefap/78152158323.pdfIn PDF document text
    • https://s3.amazonaws.com/vavejijitatofu/doughmakers_grand_cookie_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/miledu/pathogenesis_of_stroke.pdfIn PDF document text
    • https://s3.amazonaws.com/zupenafud/carl_zeiss_surgical_microscope_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_off0000d41b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD41B 5580 bytes
SHA-256: 10423ba93261baa940a6e72edc53bea9855da446a8db6ecf86917156da5a813b
font_01_sfnt_off0000e6f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6F6 9964 bytes
SHA-256: 7685ceec3f224b41c8481fe53cea98e23db18b59379c283a5473fa4d7b2275ec

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