Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad6b2b1a6e42dfaa…

MALICIOUS

PDF

75.3 KB Created: 2021-02-18 22:20:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 740fec8f18a486d86624c8d1ad752643 SHA-1: 491f8aa394a19998df8ac6c4188ef6fae689110e SHA-256: ad6b2b1a6e42dfaae7365f61d6c3176a39ee64945084943ea026e737bbaf45a6
96 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ML classifiers and ClamAV. It contains an embedded URI pointing to a suspicious domain, likely intended for phishing or malware distribution. The document body, though heavily obfuscated, contains text related to 'Bob Evans menu prices breakfast', suggesting a lure to trick the user into clicking the malicious link. No scripts were extracted, but the presence of an external URI and the ML detection strongly indicate a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://druttle.ru/aws?utm_term=bob+evans+menu+prices+breakfast PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4410415/normal_6002a1bfbebe0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388617/normal_601ff54235c0f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490265/normal_5ff48b87e8f74.pdfIn PDF document text
    • http://goodsun.space/dell_b1160w_toner_south_africaw0j6c.pdfIn PDF document text
    • http://doxugivo.22web.org/wibekajukupido.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371240/normal_5ff75c2c8de69.pdfIn PDF document text
    • https://cdn.sqhk.co/sigidezok/Y53VwoM/voxep.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452852/normal_5fdfc7464faa6.pdfIn PDF document text
    • http://luminar4-download.xyz/slam_book_software_free75lg3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491410/normal_5fc9996804db8.pdfIn PDF document text
    • http://reform-st.ru/14113581626w4qx.pdfIn PDF document text
    • https://cdn.sqhk.co/lazodadevab/gehifgf/business_card_making_software_free_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451736/normal_601d6b295906c.pdfIn PDF document text
    • https://cdn.sqhk.co/dowotovewi/gehgdDD/47829448900.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448984/normal_5fe841bfcb9da.pdfIn PDF document text
    • http://d-youtube.com/sogeturowadafimulemufimai766h.pdfIn PDF document text
    • https://cdn.sqhk.co/wobuwaseja/2fjgPx6/gosetelimuxofegosijo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fatafebegit.epizy.com/good_lock_2019_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/jazamerijekufol/business_card_template_illustrator_vistaprint.pdfIn PDF document text
    • http://rokodejufoda.rf.gd/57633665459.pdfIn PDF document text
    • http://zavukazena.epizy.com/landline_rainbow_rowell.pdfIn PDF document text
    • https://s3.amazonaws.com/galinikagopit/teoria_del_aprendizaje_cognoscitivo_social.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_off0000e7b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7B5 5444 bytes
SHA-256: 323547e73c2864a01355216432969af5fdfd7ed018b0c5f6d3163dea00bf4c8f
font_01_sfnt_off0000fa30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA30 10996 bytes
SHA-256: 92eea7e4e9e8461581ad2f66c19a40a88067fadec41b8d1c4997c12623e71830

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