Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f13bbdb4c56287f…

MALICIOUS

PDF

67.4 KB Created: 2021-03-05 01:14:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 981505219defbf5fd4c53d9adc9358c2 SHA-1: b257fb9937aa705a3f0c942cb9aa5738396885ec SHA-256: 8f13bbdb4c56287fab51f4b1f26b3e0a397f5cdf16b0d683b5751402ae70ba1d
126 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
  • 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.
  • 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://pelibifir.ru/award?keyword=how+to+reset+stopwatch+on+polar+m430 PDF link annotation
    • http://infonewsuk.site/sentry_10_gun_safe_walmartz086v.pdfIn PDF document text
    • https://cdn.sqhk.co/rowazazapa/jjBhdie/86111774500.pdfIn PDF document text
    • http://static-start.top/25230480694spux9.pdfIn PDF document text
    • http://meinekarten.best/bamboo_cot_sheets_australiapzzo6.pdfIn PDF document text
    • https://cdn.sqhk.co/losomilodip/jXjjijj/fijapenibedetomob.pdfIn PDF document text
    • http://gaydating.world/racing_simulator_steering_wheel_stand_for_ps44aa1q.pdfIn PDF document text
    • http://jajolamuseku.medianewsonline.com/what_is_the_biggest_penguin_species.pdfIn PDF document text
    • https://cdn.sqhk.co/xudogafu/c65gjjt/1917768322.pdfIn PDF document text
    • http://allwoman.site/33820346613e4e4o.pdfIn PDF document text
    • http://rumigiwataj.getenjoyment.net/bevaxakoxesejodu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491152/normal_600e597baced9.pdfIn PDF document text
    • https://cdn.sqhk.co/feketukadoz/egihiha/77021940532.pdfIn PDF document text
    • http://g2am2e.xyz/pearl_jam_mp3_song_download9kzrp.pdfIn PDF document text
    • http://lorenbayi.com/18314537989yhs2n.pdfIn PDF document text
    • https://cdn.sqhk.co/nogorodizet/Oii8jjN/jetpack_joyride_computer_game.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459025/normal_600215f44a5b8.pdfIn PDF document text
    • http://kiparegazeratax.getenjoyment.net/mini_dv_cassette_converter_to_dvd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460944/normal_6018b15088ca8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wudemexa.myartsonline.com/youll_be_fine_anthony_green_meaning.pdfIn PDF document text
    • http://zowofiz.myartsonline.com/puwimita.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_off0000caeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAEB 5620 bytes
SHA-256: 9f04768a26688cc9ee08e4543d9882e6bdffd3f192a58e9c9ce6d64ba91b419d
font_01_sfnt_off0000dded.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDED 10064 bytes
SHA-256: 20b67aaa3e7178a0dfc88c054f403cf355874c125b9ce4bb062dfbc2140f3bf5