Malicious PDF — malware analysis report

Static analysis result for SHA-256 302952b8f3bbcf0b…

MALICIOUS

PDF

81.8 KB Created: 2021-04-03 14:50:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 5ab49e090626bea02c7dabb9326d9af9 SHA-1: a8063d83ae79a88caaf5587f4b0d785179a0daf4 SHA-256: 302952b8f3bbcf0b973e95e2713300b1b4bc2467c1af13748b75cfcc9e0371ee
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains an embedded URL that redirects to a lure page, likely designed to deceive users into downloading further malicious content or providing sensitive information. The document body, though heavily obfuscated, contains keywords related to the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

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://baarspo.ru/wix?keyword=last+shelter+survival+guide+money PDF link annotation
    • http://thiswaytovogue.com/99649189137kxw3q.pdfIn PDF document text
    • http://extraterrestrials.space/rosencrantz_and_guildenstern_are_dead_player_quotesgq226.pdfIn PDF document text
    • http://boost-store.net/jesojaxaloxitinanegulonap8iktz.pdfIn PDF document text
    • http://lalashoppen.online/23246115822i6ych.pdfIn PDF document text
    • http://wabefovelixi.66ghz.com/cease_and_desist_letter.pdfIn PDF document text
    • http://idem-peshkom.ru/86701129640kf6hz.pdfIn PDF document text
    • http://xorudaz.iblogger.org/30935675130.pdfIn PDF document text
    • http://ayazshabutdinov.club/zorba_the_greek_book_summary7r8tc.pdfIn PDF document text
    • http://lumacy.site/55917778299npuk.pdfIn PDF document text
    • http://todayit.pro/10_day_green_smoothie_cleanse_recipes_day_3eo6kl.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/gagotaniwipure/how_to_program_my_charter_remote_to_my_vizio_tv.pdfIn PDF document text
    • https://s3.amazonaws.com/dejolavubukugeb/sba_online_business_plan_template.pdfIn PDF document text
    • https://s3.amazonaws.com/bubisifapagefe/anything_s_possible_seussical_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/jeponowon/8173139184.pdfIn PDF document text
    • https://s3.amazonaws.com/metakibeme/file_upload_reactive_form.pdfIn PDF document text
    • https://s3.amazonaws.com/wizomoravazub/92730938281.pdfIn PDF document text
    • https://s3.amazonaws.com/xoferuzu/fewupojafikowituzevafis.pdfIn PDF document text
    • https://s3.amazonaws.com/womirofop/what_is_the_role_of_light_and_chlorophyll_in_photosynthesis.pdfIn PDF document text
    • https://s3.amazonaws.com/jalasilunaz/spain_chick_corea_sheet_music_alto_sax.pdfIn PDF document text
    • https://s3.amazonaws.com/vipinib/odia_new_movie_dj_appu_song.pdfIn PDF document text
    • https://s3.amazonaws.com/zoxewudunigus/beechen_cliff_sixth_form_open_day_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/wajufifenoxuj/kuwategeze.pdfIn PDF document text
    • https://s3.amazonaws.com/tugumeb/sacred_geometry_symbols_for_love.pdfIn PDF document text
    • http://zunuwovadete.epizy.com/34010868555.pdfIn PDF document text
    • http://bagavux.rf.gd/punctuation_exercises_for_grade_8_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/ronenitevodo/golijavovamogin.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_off00010032.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10032 5344 bytes
SHA-256: 7ccba0486dafb9d86d2c8430aa48d5fb590c491ed4dd367a2e87d5bb8767858b
font_01_sfnt_off00011244.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11244 11504 bytes
SHA-256: edc166bab15d710a54ac6971b16f66425df2a2c4870407cf74f335b7babade61