Malicious PDF — malware analysis report

Static analysis result for SHA-256 734024abaf17ee1f…

MALICIOUS

PDF

46.4 KB Created: 2020-10-28 18:08:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: b3e247f0af9b27044f85afbaddc3c00a SHA-1: 40c83480dc9b3eb869b26cc9d3441d01d2b21afd SHA-256: 734024abaf17ee1f82c8946c7431ccba877dd913999eb72866bb3f3f5b641ffe
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.link/pify?keyword=yellow+lantern+corps+logo In PDF document text
    • https://vegilirebaj.weebly.com/uploads/1/3/1/0/131070576/78ae5.pdfIn PDF document text
    • https://sizukejagu.weebly.com/uploads/1/3/2/6/132681884/9072163.pdfIn PDF document text
    • https://givexikiduxa.weebly.com/uploads/1/3/1/3/131398224/4401522.pdfIn PDF document text
    • https://juragubiv.weebly.com/uploads/1/3/0/8/130874328/roditapusiluluxowef.pdfIn PDF document text
    • https://sikisesuleze.weebly.com/uploads/1/3/4/4/134445421/3250003.pdfIn PDF document text
    • https://taxajadotediru.weebly.com/uploads/1/3/0/8/130873824/zobekusugi.pdfIn PDF document text
    • https://koworuvixoduto.weebly.com/uploads/1/3/4/3/134352933/39709820601.pdfIn PDF document text
    • https://robavefozaxun.weebly.com/uploads/1/3/4/3/134379548/zorud_wesusepatu_dobudebetepajek_jerir.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000777f.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000777f.bin)
    • https://cdn.shopify.com/s/files/1/0500/3506/5002/files/android_open_notification_settings.pdfIn PDF document text
    • https://s3.amazonaws.com/buganabowumujef/christmas_puzzles_brain_teasers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0466/5281/7573/files/download_game_leisure_suit_larry_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/fulomufimikim/venn_diagram_printable.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/sivozarejifofigiminimofo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/6898/3969/files/manual_seat_ibiza_style_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/leguvefu/hpi_baja_5b_parts.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/90092233689.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1860/5976/files/sony_handycam_9.2_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/sazixipame/white_flower_girl_dresses_with_sleeves.pdfIn PDF document text
    • https://s3.amazonaws.com/tesapibebujep/ansible_tutorial_for_beginners_linux.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/big_pine_lakes_weather.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5587/3190/files/conditional_sentences_1_exercises.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/mupapona.pdfIn PDF document text
    • https://s3.amazonaws.com/jeromopelurab/netalujizilobuperoluvi.pdfIn PDF document text
    • https://s3.amazonaws.com/purixifusipelid/adobe_reader_complete_download.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxuledo/hyponatremia_newborn.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 extracted file (font_00_sfnt_off0000777f.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000777f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x777F 5156 bytes
SHA-256: 965e4ce763e83a4585ffae3ed8fab2c929763ed20a58911f6dc789fe60b8394f
font_01_sfnt_off0000892a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x892A 10200 bytes
SHA-256: 758a93d1d433d48623b4ab244ecca28da8f4f569baca76a05887edab0bc9a7d1