Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a14ec6058d9ed5f…

MALICIOUS

PDF

75.8 KB Created: 2021-02-14 07:17:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: fcb58f0eac86588286f4fcc73afd5d14 SHA-1: 43d2d34d6f9dcfa8df724b44c509811d3bedb243 SHA-256: 3a14ec6058d9ed5fc62895afae7c0523edbdae74adb89d7c864f793b72331d07
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://leonvi.ru/aws?utm_term=developer+mode+android+7.+1 PDF link annotation
    • http://cardioactiveufficiale.site/android_admob_developer_guideu4zoj.pdfIn PDF document text
    • https://cdn.sqhk.co/sigidezok/idEHXha/bollywood_songs_guitar_chords_single_string.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388050/normal_5ffca6df4e8d9.pdfIn PDF document text
    • http://monstergym.ru/89556176305pzuaq.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387427/normal_600825fcc3677.pdfIn PDF document text
    • http://sdek-24.cc/1286926030590nfe.pdfIn PDF document text
    • http://help-copyrighteamservice.com/dm_vasudevan_biochemistry_9th_editions1cmv.pdfIn PDF document text
    • https://cdn.sqhk.co/tatidukigag/NejgjcL/english_sad_song_ringtone_mp3_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407991/normal_5ffbc9d4b4279.pdfIn PDF document text
    • http://presalon.xyz/50444139063c04px.pdfIn PDF document text
    • http://soinjaga.ru/55804726144x1bl0.pdfIn PDF document text
    • http://tuligofabuwisa.22web.org/ardaas_movie_song_free.pdfIn PDF document text
    • http://doluridibulif.iblogger.org/bmrcl_key_answers_2019_section_engineer.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459029/normal_5fe10b6460766.pdfIn PDF document text
    • https://cdn.sqhk.co/duditizonut/DXjfPc5/scrap_copper_prices_uk_2020_today.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476135/normal_6003ea73dcd6a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tipisekoj.epizy.com/statement_of_management_responsibility_sec_template.pdfIn PDF document text
    • http://punegisegavugaf.epizy.com/mojigare.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_off0000eceb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECEB 5152 bytes
SHA-256: 2f4aff266031ed24d080fa32d18cf2347ea292fc89f03cb92abc2aa33a6f0024
font_01_sfnt_off0000fe72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE72 10512 bytes
SHA-256: 64547ce775f6ddd87fd6d6c0e5f1d2aa6d820ac517b5d1de7c5196551d23e19d