Malicious PDF — malware analysis report

Static analysis result for SHA-256 227232dfe24b7f5b…

MALICIOUS

PDF

68.6 KB Created: 2021-02-15 02:40:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5838d4aef4154fc9163997701f5655cd SHA-1: 82bb52fb8c7a44338c1a0a87167c15670b812c0b SHA-256: 227232dfe24b7f5b3cc97a8bc2ac63dec1c1031bee85492ce3f1fb49c3eb4c47
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://maypoin.ru/wix?keyword=doom+2+apkpure PDF link annotation
    • http://lupokixez.22web.org/bpsc_64_question_paper_with_answer_2018.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374843/normal_601db0043b0a2.pdfIn PDF document text
    • https://cdn.sqhk.co/batovafakupo/dIS9jc1/49108734212.pdfIn PDF document text
    • https://cdn.sqhk.co/fivukidado/7jgjbfg/mefizetarasuken.pdfIn PDF document text
    • http://zajifokabatu.iblogger.org/hacer_aviones_de_papel.pdfIn PDF document text
    • http://selectgetc.top/rawurazituzozerovuzewetajza3a.pdfIn PDF document text
    • https://cdn.sqhk.co/zikegasenar/jedgehb/nivevolifol.pdfIn PDF document text
    • http://wildboost.club/60876084439t087c.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/dobesogum/budgeting_loan_form_for_universal_credit.pdfIn PDF document text
    • https://s3.amazonaws.com/vasofirida/xiwagavanugigoji.pdfIn PDF document text
    • https://s3.amazonaws.com/warapagefasovi/guided_meditation_for_falling_back_to_sleep.pdfIn PDF document text
    • https://s3.amazonaws.com/fulosobezur/24466146810.pdfIn PDF document text
    • http://wunozoviwo.epizy.com/vefetesa.pdfIn PDF document text
    • https://s3.amazonaws.com/tifuwuw/nigujupiwupafagifaf.pdfIn PDF document text
    • https://s3.amazonaws.com/rodiligarexo/60834662578.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_off0000c5e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5E9 4952 bytes
SHA-256: 48ad21125da6d3a0c83f15ab7b849083524c0ccb819d1d2cc355bb7ec21af228
font_01_sfnt_off0000d6aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6AA 3280 bytes
SHA-256: 5f898aa0be1e4824fc5871e7e839c19c5dc99b9597657108e4614c5ef9331b13
font_02_sfnt_off0000e283.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE283 10064 bytes
SHA-256: 1df31e75b5e2fc4eb345aa8a86da51082e33b43367ad8255fc42727dee38ffc0

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