Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ced9cc06a81bc2a…

MALICIOUS

PDF

72.6 KB Created: 2021-02-12 04:55:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e87dfc78cbb2d6af10cc11bfd2a9c4d6 SHA-1: 147ea140447068cd94a9cf3175cd1c4fd113a4ec SHA-256: 9ced9cc06a81bc2af948fcacca0e6d556ce0133ad3912f061b0aee0a0db9f835
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://bologen.ru/wix?keyword=lotro+guide+to+misty+mountains PDF link annotation
    • https://kobizixudowizeb.weebly.com/uploads/1/3/4/4/134402546/xikobikidedo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365602/normal_5fdf6ad72a846.pdfIn PDF document text
    • https://xefakiradu.weebly.com/uploads/1/3/1/8/131856624/79b71333c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471234/normal_6014cef4103cb.pdfIn PDF document text
    • https://rowegodidevonu.weebly.com/uploads/1/3/4/4/134468430/829266.pdfIn PDF document text
    • https://ratopavitakam.weebly.com/uploads/1/3/4/4/134460251/julotimugimibaj.pdfIn PDF document text
    • https://revowerixes.weebly.com/uploads/1/3/1/6/131607662/1243d30440ca.pdfIn PDF document text
    • https://moforikegumiret.weebly.com/uploads/1/3/2/6/132680993/xigowogixunugon.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479214/normal_6008e33204cfc.pdfIn PDF document text
    • https://kisisegexorev.weebly.com/uploads/1/3/2/3/132302984/judomudebasat_tolemun_wodurax.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413967/normal_5fc5ebfb67b52.pdfIn PDF document text
    • https://wivujugojuz.weebly.com/uploads/1/3/4/8/134883460/8776228.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/zuniverijesud/55354929056.pdfIn PDF document text
    • https://s3.amazonaws.com/womirofop/android_app_for_windows_phone_8._1.pdfIn PDF document text
    • http://gagelenobom.epizy.com/3d_games_pc_full_version.pdfIn PDF document text
    • http://vuxomukixade.epizy.com/bhojpuri_new_movie_dj_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/gadumagabusodel/android_os_distribution_in_us.pdfIn PDF document text
    • https://s3.amazonaws.com/pululusodogi/anytime_fitness_membership_transfer_form.pdfIn PDF document text
    • https://s3.amazonaws.com/jovekus/75700771109.pdfIn PDF document text
    • https://s3.amazonaws.com/rikolesafuwofar/zubemepupakuk.pdfIn PDF document text
    • http://remobufu.rf.gd/6412534522.pdfIn PDF document text
    • https://s3.amazonaws.com/taguxif/viva_video_maker_app.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_off0000e21d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE21D 5156 bytes
SHA-256: e76ca98e1a4b5255e472ba274b034296c0764af76f632165f993c346f500ba37
font_01_sfnt_off0000f399.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF399 9816 bytes
SHA-256: 42325a8a6b2322099e90d0db4a72a59d344e675ea57e69019d6204b5905ccf61