Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0904e0261fc88c8…

MALICIOUS

PDF

72.3 KB Created: 2021-02-26 03:31:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a77b2bb3737b89a2939bf0fcb6927bbc SHA-1: 4d3df7cb33e70ca65fac966825020d4b97b545d8 SHA-256: d0904e0261fc88c8091d3ef783a0c023a0089e85505eebaffe4f387478c7aa3d
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jacksth.ru/award?keyword=garmin+approach+s10+manual+svenska PDF link annotation
    • https://cdn.sqhk.co/lanuniwa/MhagdUO/snappy_gifts_list.pdfIn PDF document text
    • http://zurabutodiriwa.22web.org/65614816083.pdfIn PDF document text
    • http://tufepuwaw.iblogger.org/real_bike_racing_mod_apk_unlimited_money.pdfIn PDF document text
    • http://gejamejebedizov.22web.org/afro_hair_brush_photoshop.pdfIn PDF document text
    • https://jupufafel.weebly.com/uploads/1/3/2/7/132740723/pazaxofe_gapexu.pdfIn PDF document text
    • https://cdn.sqhk.co/ruvonusebex/ibMjghi/digi_telecommunications_head_office_number.pdfIn PDF document text
    • http://astropsychology.site/farakivapukazatups3pw9.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/farowug/vijalutenewavurexur.pdfIn PDF document text
    • http://zebigibozudival.epizy.com/11199311779.pdfIn PDF document text
    • https://s3.amazonaws.com/benubapopikaj/love_calculator_application_free_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/tesodagiwor/holmes_air_purifier_ionizer_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/zemunomipazikez/pafedutuj.pdfIn PDF document text
    • https://s3.amazonaws.com/debiwelof/solving_calculus_problems_step_by_step.pdfIn PDF document text
    • http://megomosapexar.epizy.com/arabian_nights_2000.pdfIn PDF document text
    • https://s3.amazonaws.com/wotodedaruzuk/canadian_passport_form_for_child_outside_canada.pdfIn PDF document text
    • https://s3.amazonaws.com/gonafoziguwewe/nutritional_value_taco_bell_mexican_pizza.pdfIn PDF document text
    • https://s3.amazonaws.com/fovezewi/chinese_movies_dubbed_in_tamil_hd.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_off0000de13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE13 5524 bytes
SHA-256: fbd0d24da76b69642ab3525615fd41a02103aab996e82c773786b55f0b06509e
font_01_sfnt_off0000f0b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0B7 10300 bytes
SHA-256: f7c568704b058443b6ddc59b42217abeb43abaa53148273a36bd6f80c798fb96

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