Malicious PDF — malware analysis report

Static analysis result for SHA-256 851f29d537f7a62f…

MALICIOUS

PDF

68.2 KB Created: 2021-02-13 06:07:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b6f2e3c9a73cc3f7fa0edb205d95f57a SHA-1: e96c0f642121e238c18a83f7aa2b81769277de35 SHA-256: 851f29d537f7a62f3eb0a98480f18712684ca3fbd88274261bbcb6916307b56b
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/wix?keyword=eztv+proxy+reddit+2020 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4418401/normal_6014c99693c8c.pdfIn PDF document text
    • http://trujillostacoshop.com/nepedepamurijemarikijxq2kx.pdfIn PDF document text
    • http://3bureaureport.info/ballad_of_serenity_violin_sheet_musicpom04.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393035/normal_5feb2fa8a7b65.pdfIn PDF document text
    • http://axecheat6.xyz/lego_hidden_side_app_fire_tabletrtzgo.pdfIn PDF document text
    • http://nudistoff.club/72457494498gxypf.pdfIn PDF document text
    • http://form-lnstagramverificationbadge.com/pigarubuvr15mh.pdfIn PDF document text
    • http://blablablacar.online/baby_boy_games_free_downloadnezmu.pdfIn PDF document text
    • http://razvivatel.blog/783832393468c4cz.pdfIn PDF document text
    • http://fakts.design/81535123063spnfx.pdfIn PDF document text
    • http://creditpm.com/ingenieria_economica_blank_tarquin_6ta_ediciona8joz.pdfIn PDF document text
    • http://potolkilife.ru/411199489049z16y.pdfIn PDF document text
    • http://ru-en.xyz/pulse_3d_wireless_headset_for_playstation_5_review1rrcp.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/zaxefemebidaz/26965131554.pdfIn PDF document text
    • https://s3.amazonaws.com/nefagolom/84081800288.pdfIn PDF document text
    • https://s3.amazonaws.com/bubodeliza/chinese_cabbage_farming.pdfIn PDF document text
    • https://s3.amazonaws.com/sumesawoxajew/gazetka_kaufland_bydgoszcz.pdfIn PDF document text
    • https://s3.amazonaws.com/gafedupeba/crazy_in_love_ringtone_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxagixil/amma_donga_songs_telugu_naa_songs.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c29b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC29B 4728 bytes
SHA-256: 0f3d14e196face53b285c20265dfdbdce2a089898cea02071985cdd47f1f8515
font_01_sfnt_off0000d2df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2DF 10276 bytes
SHA-256: 234c5c0600d239de78e51af35469eea919f17c42c44cd6032c9da421b5e8ff0a
font_02_sfnt_off0000f5b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5B0 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333