Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ff9eda4024b5e62…

MALICIOUS

PDF

70.3 KB Created: 2021-01-25 19:13:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b0a97e632caf98403f03728b9cba2bc9 SHA-1: 79637f07ead0ca28f54eae7d394fd7fd46dbfddb SHA-256: 0ff9eda4024b5e62f53ebaba9ade6e1cdc425d0b49d705224ffd975f0bc8846b
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://jottigo.ru/wb?keyword=acrylic%20nails%20short%20coffin%20white PDF link annotation
    • http://copyrightreports.com/42498447026nfrjq.pdfIn PDF document text
    • http://begemotiks.fun/centipede_grass_seed_for_sale8zymk.pdfIn PDF document text
    • https://cdn.sqhk.co/duxapotor/AcFicDR/resadujawapatu.pdfIn PDF document text
    • http://studyweb.site/281776912509s1z7.pdfIn PDF document text
    • http://kagifosotumaden.iblogger.org/jadapolejifo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382961/normal_5fe0cf9fbe76b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467036/normal_5fcdf01981853.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407998/normal_600138a1cbf2e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489409/normal_5fdf5b4f8bb45.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465133/normal_5fe077107fe5d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489409/normal_5ff06fb2ad2aa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kavonuloruzofeb.rf.gd/battle_realms_online_free.pdfIn PDF document text
    • https://s3.amazonaws.com/fapaga/vomudufivobufonutugo.pdfIn PDF document text
    • http://fipomazuwasa.epizy.com/destiny_2_warlock_guide_shadowkeep.pdfIn PDF document text
    • https://s3.amazonaws.com/boduxatavepe/23965572570.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_off0000d622.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD622 5152 bytes
SHA-256: ce342fccee0833bd4f44bf97394b683ccd890aa578671cb66ec7e5e254ae34da
font_01_sfnt_off0000e7bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7BB 10784 bytes
SHA-256: e2e35dd9d0b9bfddcab569466ace2781acd67e5597951a6c2b40afc511043f20