Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e00c19fd2cd221b…

MALICIOUS

PDF

428.1 KB Created: 2021-04-29 23:52:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: de6f4c601252e4d9f55dbdefb43de22b SHA-1: c4ce32f985a3b70871efe73be55f44abda5e32b8 SHA-256: 2e00c19fd2cd221b138abc328cd0e768044175257635eb2f34f668c6ef94c431
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains heuristics indicating it's a phishing lure, specifically using an image to redirect users to a malicious URL. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded URL 'https://xezojetit.ru/strik?utm_term=brave+frontier+friday+dungeon+karma' is identified as a redirector for phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9096

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://xezojetit.ru/strik?utm_term=brave+frontier+friday+dungeon+karma PDF link annotation
    • http://doordash.link/86551306603dij0c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460457/normal_604d4388c20f6.pdfIn PDF document text
    • http://dalkomis.website/autodesk_3ds_max_2020_fundamentalszjhlw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418401/normal_5fcf043e9e6b4.pdfIn PDF document text
    • http://clobuss.ru/how_to_reset_my_tv_remote9p7hc.pdfIn PDF document text
    • http://fastdonwload.space/nageteralewufi4jz.pdfIn PDF document text
    • http://covidcapsule.world/place_value_chart_4th_grade_worksheetmx6sf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417423/normal_60434d0b530bc.pdfIn PDF document text
    • http://probmake12.xyz/sql_server_hardening_guidelines6j7ag.pdfIn PDF document text
    • http://merovew.xyz/monthly_expense_tracking_excel_templatenq8kx.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/tizowodifi/dodibetosalopobifojaz.pdfIn PDF document text
    • https://s3.amazonaws.com/tobaziw/56773591810.pdfIn PDF document text
    • https://s3.amazonaws.com/minabiwa/bewars_movie_audio_ringtone.pdfIn PDF document text
    • https://s3.amazonaws.com/tanikanaw/jejulozebivagajer.pdfIn PDF document text
    • https://s3.amazonaws.com/zinudipir/how_to_fix_keurig_k10.pdfIn PDF document text
    • https://s3.amazonaws.com/titugome/spotify_premium_apk_full_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/vonusirukete/19596909483.pdfIn PDF document text
    • https://s3.amazonaws.com/fukezavazuj/piano_sheet_music_free_easy_popular_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/baby_doll_album_remix_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tirimofufemukat/cookie_run_ovenbreak_quest_guide.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00064254.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64254 5176 bytes
SHA-256: 16c60b5de131d98b690cedd79fdb18aed4982a47cd947d8ff066f7a920869d71
font_01_sfnt_off000653e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x653E9 12060 bytes
SHA-256: 66165a96dc753393ca6332c76dd6ed20e5719b5996ab2cc8e8e41e14ac9fe45d
font_02_sfnt_off00067b97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67B97 16092 bytes
SHA-256: 9af6fc3bf9d751f70540aea0fa47faa159a3604992cda23d2adcda3ffc5346b2
font_03_sfnt_off0006905e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6905E 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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