Malicious PDF — malware analysis report

Static analysis result for SHA-256 14aea2f244a12a5e…

MALICIOUS

PDF

74.5 KB Created: 2021-02-26 05:01:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 27535ffc1a1227c6f63790a3c72708ff SHA-1: 33d64c7333a97cf988cb7d460dde0095f9476ff2 SHA-256: 14aea2f244a12a5eedd63261d48b8fde4fd35dfe7cbe8581da4bb9372c36cb81
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to a suspicious domain, which is a strong indicator of phishing or malware distribution. The document body, though heavily obfuscated, suggests a lure related to 'Vintage necchi sewing machine parts', likely to entice users to click the embedded malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://crophysi.ru/strik?utm_term=vintage+necchi+sewing+machine+parts PDF link annotation
    • http://vopugixeroramox.medianewsonline.com/popomisoradaxeku.pdfIn PDF document text
    • http://bebetadiruj.mywebcommunity.org/how_to_adjust_temperature_on_george_foreman_grill.pdfIn PDF document text
    • http://lubenoredeji.mypressonline.com/supply_chain_management_program_online.pdfIn PDF document text
    • http://fudoviwil.mywebcommunity.org/is_the_aisin_transmission_good.pdfIn PDF document text
    • http://zanovekolasin.mywebcommunity.org/dakodelifujajolokugi.pdfIn PDF document text
    • https://cdn.sqhk.co/xoguvamev/dHuhf9w/77480984825.pdfIn PDF document text
    • http://kakafeg.scienceontheweb.net/why_is_my_xfinity_tv_box_blinking_green.pdfIn PDF document text
    • http://betijeduw.getenjoyment.net/is_homework_helpful_for_students.pdfIn PDF document text
    • https://cdn.sqhk.co/pubamegumox/ahggehc/mejemib.pdfIn PDF document text
    • http://desokore.medianewsonline.com/mamiya_rb67_professional_s_digital_back.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vujuvisesakok.myartsonline.com/every_mans_battle.pdfIn PDF document text
    • http://bumurulepowele.myartsonline.com/28243187431.pdfIn PDF document text
    • https://s3.amazonaws.com/bajapovogam/simekumanitupatokakigonap.pdfIn PDF document text
    • http://womawujun.atwebpages.com/95634730396.pdfIn PDF document text
    • https://s3.amazonaws.com/dazinibonofobi/52801925964.pdfIn PDF document text
    • https://s3.amazonaws.com/pusori/adding_cinema_apk_to_roku.pdfIn PDF document text
    • https://s3.amazonaws.com/jotizifime/deborah_de_luca_essential_mix.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_off0000e73c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE73C 5372 bytes
SHA-256: f15a5e7dd247d61a07483c75c99a50057e0a65e7c45cd3280a3448d5ce5c9b60
font_01_sfnt_off0000f971.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF971 10452 bytes
SHA-256: 8f805ce9f77f9ee1ea2e6472bd8ca4680a70aa9d85adcd7e140e8075c93b221c

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