Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1846b662a386ef5…

MALICIOUS

PDF

71.7 KB Created: 2021-03-19 10:41:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 257ee611d4bcd1d5835dcd9ed06db8e3 SHA-1: ef0c08a8c6080df35e17fd78d683dab0e7bbdf7b SHA-256: f1846b662a386ef59e113b3cc62da62255a016fd16472661f25ee3f72d180aa6
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URL that directs users to a suspicious domain, likely to deliver a malicious payload or phish for credentials. The document body, though partially obfuscated, references the URL's keyword, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jottigo.ru/award?keyword=el+poder+del+kabbalah+libro+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4422637/normal_5ff007dc8f7e8.pdfIn PDF document text
    • http://sapazukuwujoji.22web.org/divergent_2_full_movie_free_download.pdfIn PDF document text
    • http://bagomebefekixob.getenjoyment.net/32216398240.pdfIn PDF document text
    • http://jarisudowapebi.sportsontheweb.net/jevadezekodalanogef.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391001/normal_5fe28d0e7aed5.pdfIn PDF document text
    • http://juraxoxodas.scienceontheweb.net/nuvobuxuwomu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409095/normal_602eaddc7f3cf.pdfIn PDF document text
    • http://nujokopinud.iblogger.org/types_of_alternative_fuels.pdfIn PDF document text
    • http://lafovug.iblogger.org/metajizekogip.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481830/normal_602c48e633caf.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
    • http://liwubujuwu.epizy.com/40923704793.pdfIn PDF document text
    • https://s3.amazonaws.com/xukonakefules/ingersoll-dresser_pumps_cameron_hydraulic_data.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxirefare/98820699666.pdfIn PDF document text
    • https://s3.amazonaws.com/libeganot/evanescence_fallen_album.pdfIn PDF document text
    • https://s3.amazonaws.com/bisapovepizaj/hp_elitebook_folio_9470m_lcd_replacement.pdfIn PDF document text
    • http://xinozotaga.rf.gd/96787447005.pdfIn PDF document text
    • https://s3.amazonaws.com/kegovev/1994_ford_ranger_owners_manual.pdfIn PDF document text
    • http://sokirasur.epizy.com/amazon_obhijaan_graphic_novel_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/nodetuxapabara/55962250755.pdfIn PDF document text
    • https://s3.amazonaws.com/gapuruxumeg/rebofasube.pdfIn PDF document text
    • https://s3.amazonaws.com/pomaxa/1712800045.pdfIn PDF document text
    • http://muresapidun.epizy.com/4943524671.pdfIn PDF document text
    • http://zitorosenexof.epizy.com/waxupupelarovonedabotoj.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_off0000cd36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD36 4712 bytes
SHA-256: 15f25c0f69102dbfece072c8384a0b7e794950a43ed0cca1fb00fb4cfca7128b
font_01_sfnt_off0000dd41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD41 11128 bytes
SHA-256: 4b37d645ce3e5805b27de03461f268188932e51fe43f2c77c351360555245bf0
font_02_sfnt_off00010157.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10157 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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