Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba2ff741152bde40…

MALICIOUS

PDF

71.5 KB Created: 2021-02-22 06:48:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: bf3cef7fe87b1405c81e8e42c8190e08 SHA-1: 9700b834ac2739f373104afcb0172ede71fc5445 SHA-256: ba2ff741152bde407af061674cfb11f58e7106d732982bd11da22f1589df90f1
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://baarspo.ru/wix?keyword=mr+krupp+voice+netflix PDF link annotation
    • https://cdn.sqhk.co/silinetufid/fjdJ92v/99465524625.pdfIn PDF document text
    • http://menformula.xyz/67521189743oh3hv.pdfIn PDF document text
    • http://dazixetenulega.22web.org/camtasia_software_for_pc_free.pdfIn PDF document text
    • https://cdn.sqhk.co/xakurusuk/Tjgjjh2/puvimivamegenevis.pdfIn PDF document text
    • https://wimofitadaxota.weebly.com/uploads/1/3/4/3/134362004/dikerowewonor_tusumipesaroxiz_gakeje_pidekuxo.pdfIn PDF document text
    • http://mafonofolifeda.22web.org/blink_182_i_miss_you_karaoke.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481522/normal_5fe17d9672159.pdfIn PDF document text
    • http://shop-onlain.fun/totally_accurate_battle_simulator_free_download_apk_pculuut.pdfIn PDF document text
    • https://cdn.sqhk.co/ditetijesi/dIrT8LI/45822164564.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427781/normal_5fd870b44118b.pdfIn PDF document text
    • https://cdn.sqhk.co/dabozijide/QIhbZSx/weekend_away_deals_uk.pdfIn PDF document text
    • http://zazerabila.iblogger.org/barish_song_yaariyan_movie.pdfIn PDF document text
    • https://cdn.sqhk.co/wozovege/gggijhd/46160073009.pdfIn PDF document text
    • http://lesantyqas.online/56443166981lane5.pdfIn PDF document text
    • http://senenetikoxikom.22web.org/burmese_days_book.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000ddc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDC5 4820 bytes
SHA-256: def89d448742c1c9bdfb363ec8727aa621fc2a0467191232158ef119188188eb
font_01_sfnt_off0000ee5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE5C 10268 bytes
SHA-256: 958a0b01ab1a138d00804a0ce559185d366febeded8a4d19e9ef002ac9ca9619