Malicious PDF — malware analysis report

Static analysis result for SHA-256 e08879a9b551eb5b…

MALICIOUS

PDF

69.4 KB Created: 2021-02-27 11:25:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: fcd717e78af6c556fbe6d121ab7e7045 SHA-1: 26fd327d02ecdd536e80f21adc470bd4b075a31c SHA-256: e08879a9b551eb5b1f66841d688016e0921aa46bbf3f9b938b8753849155b5dc
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://fokemale.ru/wix?keyword=megalovania+download+mp3 PDF link annotation
    • https://cdn.sqhk.co/ruzudulo/ijhcbgd/7119650255.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485822/normal_600be27ad5482.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465400/normal_602e3832d96a9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422645/normal_5fd75d281ea04.pdfIn PDF document text
    • http://sesizuxewewax.mygamesonline.org/temenewimumuk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411691/normal_5fe27ead65e19.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465390/normal_5ff143563ecc8.pdfIn PDF document text
    • https://cdn.sqhk.co/bivuwusim/DKChfji/71942535145.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413585/normal_5fc810afc8a0a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369511/normal_5fe6bde38e39e.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/ragejufa/kenmore_water_softener_water_flow.pdfIn PDF document text
    • https://s3.amazonaws.com/nowonovege/demon_ps2_emulator_games.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bda9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDA9 5324 bytes
SHA-256: f5b4532d940fddd1aeda8108cb92b862f698f9dd6413e6e3c9c1bea9415e2993
font_01_sfnt_off0000cfe5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFE5 10460 bytes
SHA-256: ec0da1504c10c454457dc5b00ec27d0b03f7a6b29d0424387662226ad7ed6dfb
font_02_sfnt_off0000f3e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3E8 16092 bytes
SHA-256: e9fe716c2abc985b12a899a49d5539e4e8be1b56d50c083b30290d85a2a7c848