Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5ab8f319d0ce3dc…

MALICIOUS

PDF

78.8 KB Created: 2021-03-02 01:56:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f27a22201d578850a02dc7c3be44188a SHA-1: 49429be494c9a15c1abd01117b8a0fadab11861e SHA-256: f5ab8f319d0ce3dc26f193523152ffa0527260b59f68bf6149b3012183645c24
176 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
  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://nipisod.ru/award?keyword=samsung+hw-e450+factory+reset PDF link annotation
    • http://xepidenad.scienceontheweb.net/manual_de_organizacin_y_funciones_de_una_empresa_pequea.pdfIn PDF document text
    • http://select-get.top/rokoligisegiwmhxj.pdfIn PDF document text
    • http://onesmall.space/141628589840f06b.pdfIn PDF document text
    • http://tesocoin.online/62759277478qmr35.pdfIn PDF document text
    • http://bupetud.xyz/fubisevozawvjxis.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408707/normal_5fd3db191f588.pdfIn PDF document text
    • http://mugedly.xyz/emulator_ps2_pcsx2_android7acvo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408321/normal_602537bbc9303.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461751/normal_5fccf76a1764b.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/jidosatikim/4852587394.pdfIn PDF document text
    • https://s3.amazonaws.com/silubebebefuju/fuvejaripopebazezim.pdfIn PDF document text
    • http://bodegifu.atwebpages.com/roland_barthes_the_eiffel_tower_and_other_mythologies.pdfIn PDF document text
    • https://s3.amazonaws.com/bufexa/47555085435.pdfIn PDF document text
    • https://s3.amazonaws.com/banula/65655863468.pdfIn PDF document text
    • https://s3.amazonaws.com/jikopot/sisidibiwerometulukub.pdfIn PDF document text
    • https://s3.amazonaws.com/silubebebefuju/66896502287.pdfIn PDF document text
    • https://s3.amazonaws.com/davubewu/gapokofatiwe.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifumofelu/11295864261.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_off0000f6d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6D5 5948 bytes
SHA-256: 6e96aedbafc3a418832b85549a8b61e8fdb78a2566b74cbf196edd5dcbe368de
font_01_sfnt_off00010b11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B11 10484 bytes
SHA-256: 2d65320ed128ba56ca4e76a98846ccee6d7574db6bb05d9567fb455f09d21506