Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d161334eafdd8e5…

MALICIOUS

PDF

68.7 KB Created: 2021-02-15 01:43:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3aa3a6eb0a8e880b9bd53554870d40f8 SHA-1: 0ddf8b00628b323a631f74481b73dfe6d6cfdc38 SHA-256: 0d161334eafdd8e553940d763c55ea9188fd20aed19bf567b10f6a2c62caae9c
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wb?keyword=all%20india%20bar%20exam%202019%20form PDF link annotation
    • https://cdn.sqhk.co/mujekesire/hhjckgj/gubeduvifopikuj.pdfIn PDF document text
    • http://forkidsshop.online/mindtap_cengage_answers_microeconomics_chapter_145fugn.pdfIn PDF document text
    • http://faketikus.22web.org/about_us_page_template_html.pdfIn PDF document text
    • http://gosologesegob.iblogger.org/kumogajipepiboze.pdfIn PDF document text
    • https://cdn.sqhk.co/sizafutito/hiiiD3e/26694244267.pdfIn PDF document text
    • http://lirelejavebot.iblogger.org/35338671791.pdfIn PDF document text
    • https://cdn.sqhk.co/mewuwemiromi/giifg6j/josinesopupu.pdfIn PDF document text
    • http://weareanonymous.org/zanumawubujokobutj8i2e.pdfIn PDF document text
    • http://aviabileti.ru/tafsir_al_quran_banglax4g23.pdfIn PDF document text
    • http://instacopyrightcenter.com/best_netflix_movies_2020_canadagfw5v.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://balazetesu.epizy.com/mamurupuvujanolamesedisu.pdfIn PDF document text
    • https://s3.amazonaws.com/pazatuv/mowudisuxob.pdfIn PDF document text
    • http://lowavizoviwu.epizy.com/lisizijodu.pdfIn PDF document text
    • https://s3.amazonaws.com/nuvukivaxiren/38508009738.pdfIn PDF document text
    • https://s3.amazonaws.com/muvojugejoxip/kyoto_osaka_japan_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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cf0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF0B 5556 bytes
SHA-256: a99e65407c6cecddbdcbc4d5b32d982f2672a0d87b5c4923d2d0afe62e0bc767
font_01_sfnt_off0000e1de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1DE 10708 bytes
SHA-256: 3216302c99f5ccf4e1ac707e1927476944e66bbee7664ab5c820d44ccb3857ed