Malicious PDF — malware analysis report

Static analysis result for SHA-256 38d5d21875fa8851…

MALICIOUS

PDF

73.6 KB Created: 2021-02-26 20:59:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 11c141a029cde14abc82da236c8a0454 SHA-1: cfd77906f1d2c1bc87a235cbef78c158e69936fa SHA-256: 38d5d21875fa885107fa8141b5a54ff8041766614bf25a5b744a13ba676a82dc
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://leonvi.ru/aws?utm_term=what+does+service+keyless+system+mean+jeep+grand+cherokee PDF link annotation
    • http://podarokinsta24.online/43335781305nfc4.pdfIn PDF document text
    • http://tehnikator.ru/mi_planta_de_naranja_lima_segunda_parte_capitulo_5_resumen8gohj.pdfIn PDF document text
    • https://cdn.sqhk.co/setuboluraje/jjCFVms/knighted_meaning_in_tamil.pdfIn PDF document text
    • https://cdn.sqhk.co/kugugofawaz/dgfiaia/movie_night_snacks_box.pdfIn PDF document text
    • https://cdn.sqhk.co/pigajifaw/cFKgehc/toca_boca_hair_salon_3_hairstyles.pdfIn PDF document text
    • https://cdn.sqhk.co/bomoxale/Wjfrbii/fall_guys_ultimate_knockout_unblocked_games.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472475/normal_5fc57545b8dcc.pdfIn PDF document text
    • https://cdn.sqhk.co/nusatabi/hbjaPgd/king_kong_palm_kung_fu.pdfIn PDF document text
    • https://cdn.sqhk.co/xarozowuzosa/uheJmcb/5349342685.pdfIn PDF document text
    • http://copyrightsafetyhelps.com/you_are_good_good_oh_lord_chords3jvzf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485568/normal_6031f7c21c63b.pdfIn PDF document text
    • https://cdn.sqhk.co/tinulafi/djajjfp/piwaluxagemabetuv.pdfIn PDF document text
    • https://cdn.sqhk.co/lupobikud/giiHwjc/huawei_health_9_apk_download.pdfIn PDF document text
    • http://richmaya.site/fazawunokubisafne6h.pdfIn PDF document text
    • https://cdn.sqhk.co/sepokafaru/eKdpheQ/93067375342.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e252.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE252 5804 bytes
SHA-256: 0453e4e8f74241bcdd38e34b93d1e43b60b7da5755b01ebfdff0f0947cf67e82
font_01_sfnt_off0000f606.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF606 10292 bytes
SHA-256: 0d6f11222f80f594d2dbf67c10f80ab3b0e3fd996f29126c939d12e08d6e87a3