Malicious PDF — malware analysis report

Static analysis result for SHA-256 71c1ab1b5b56c66f…

MALICIOUS

PDF

77.4 KB Created: 2021-04-05 16:53:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 857430dea24bd486362943e5ac902278 SHA-1: e6f12f9194eeb23736159a09a29b2de4517c5b6e SHA-256: 71c1ab1b5b56c66f232d7b527afd77c7c6153c21b38a8200d51c72720135ab81
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://botokaw.ru/strik?utm_term=samsung+tv+software+update+issues PDF link annotation
    • http://ratapadeko.22web.org/fusiform_aneurysm_describes_a_an.pdfIn PDF document text
    • https://cdn.sqhk.co/dutimapo/kiaijhg/vufadamisolevepinunebise.pdfIn PDF document text
    • https://cdn.sqhk.co/tivinarafuvu/LMgephf/gofanagikab.pdfIn PDF document text
    • http://josogub.iblogger.org/how_much_is_lg_inverter_ac.pdfIn PDF document text
    • http://ditalemidego.22web.org/laminated_object_manufacturing.pdfIn PDF document text
    • http://lalexejiwisejul.iblogger.org/vomenivumox.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/pozokimepe/35301899618.pdfIn PDF document text
    • http://nubaletafo.epizy.com/98868623455.pdfIn PDF document text
    • http://votagunuk.rf.gd/analytic_number_theory.pdfIn PDF document text
    • https://s3.amazonaws.com/bomifabipi/metformin_moa_usmle.pdfIn PDF document text
    • http://gumuwojurigab.epizy.com/asl_alphabet_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/xujitezu/clear_chrome_cache_on_android_phone.pdfIn PDF document text
    • http://bajobakokela.epizy.com/causes_of_obesity_in_malaysia.pdfIn PDF document text
    • https://s3.amazonaws.com/boxalewijim/convict_conditioning_2.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/7767535633.pdfIn PDF document text
    • http://suvemavukefejig.epizy.com/56838593209.pdfIn PDF document text
    • http://wedejilifolani.rf.gd/whatsapp_wedding_invitation_card_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vofadoloves/product_inspection_checklist_template_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/dutuxelaje.pdfIn PDF document text
    • http://pibusobi.epizy.com/wikanutikaxezasigimef.pdfIn PDF document text
    • http://vobewegogiz.rf.gd/sime_darby_annual_report_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/xulikamul/does_esmeralda_fall_in_love_with_quasimodo.pdfIn PDF document text
    • https://s3.amazonaws.com/sugowubuf/61119126028.pdfIn PDF document text
    • http://zitupelu.epizy.com/twinkle_twinkle_little_star_partitura_piano.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF0C 5584 bytes
SHA-256: 7bc836e9fc90f3f59ec09c288511a0b2a3eee3a7717781d8fda1c4308dcde0af
font_01_sfnt_off00010215.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10215 11120 bytes
SHA-256: 719cbc04a70c3112319b80c835cec39aac31e0257c884382b098ae374956064d

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