Malicious PDF — malware analysis report

Static analysis result for SHA-256 249fcf6e16b0034c…

MALICIOUS

PDF

72.1 KB Created: 2021-03-01 10:36:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 6c1bce2de1c11e095b76ec2afe4cec73 SHA-1: 2e5de844e0951eb84ad6941e52f1c21cebf46971 SHA-256: 249fcf6e16b0034c39d654859f51bfa4376a8f8aaec31dfb0163e81146e02438
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://vilenefex.ru/award?keyword=dir+655+wireless+bridge+mode PDF link annotation
    • https://cdn.sqhk.co/satidaruxami/iLJhgid/bts_new_songs_2020_playlist.pdfIn PDF document text
    • https://cdn.sqhk.co/ribobujir/jeNtFjT/cara_redeem_code_mobile_legend_dunia_games.pdfIn PDF document text
    • https://kopabiziruzoxol.weebly.com/uploads/1/3/1/4/131406592/lavurefabokiguf.pdfIn PDF document text
    • https://fumitalabojaluk.weebly.com/uploads/1/3/5/3/135399187/nosukerowaj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413017/normal_602b55fdd0927.pdfIn PDF document text
    • http://iranianvc.com/14091851469vi49e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501634/normal_6001e1522755e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452392/normal_5fd3aa3c09612.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405202/normal_5fffa1a6c410f.pdfIn PDF document text
    • http://bigswinner.space/el_cantar_del_mio_cid_resumen_por_captulossr25d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367631/normal_6039eeb47c399.pdfIn PDF document text
    • https://cdn.sqhk.co/futevanu/idfngfR/12986922277.pdfIn PDF document text
    • https://kixixowagixu.weebly.com/uploads/1/3/2/7/132710794/tukipimikamej.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wefemabeni/xelowoxaja.pdfIn PDF document text
    • https://s3.amazonaws.com/fotojipifuzitul/9th_class_english_guide_book.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_off0000dcb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCB2 5444 bytes
SHA-256: c8dc3c9393342a16ab68ef281bfb073a70c1a26e03d5e43261b57e5d2a18744e
font_01_sfnt_off0000ef37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF37 10640 bytes
SHA-256: 16cf6ecd65b173a81a35fb62aa685900fa750c599f3a3543b308489ddfe8f9e6