Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f1ffc54781290ef…

MALICIOUS

PDF

74.6 KB Created: 2021-02-10 03:10:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 5245a3c2739a1a4aed9a30f9879ec26d SHA-1: 7bd7edbf9154483d029fe4f21b2d8bb91498dea8 SHA-256: 0f1ffc54781290ef4dc8b9c342f904d29eea63a3ecd0808daad85a0587eff502
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://maypoin.ru/wb?keyword=m%E1%BB%9F%20file%20pdf%20b%E1%BB%8B%20l%E1%BB%97i%20font PDF link annotation
    • https://cdn.sqhk.co/zolewiko/IgcTjjC/33142313886.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420756/normal_600b99b09b85a.pdfIn PDF document text
    • https://cdn.sqhk.co/towafeniruje/DYli1ib/pew_pew_pew_lyrics_auntie_hammy_meaning.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388181/normal_5ffc1011d6c4b.pdfIn PDF document text
    • https://cdn.sqhk.co/wemorapi/NhV3ji1/live_lock_screen_on_iphone_6.pdfIn PDF document text
    • http://todayshop.website/48054379349gh04h.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486034/normal_5ffd65dedb94b.pdfIn PDF document text
    • https://cdn.sqhk.co/fugolamudara/3ihxjft/sipevisifibuzunutetatodot.pdfIn PDF document text
    • http://leadtop.co/tomogpcqk4.pdfIn PDF document text
    • http://kifenefazujiz.iblogger.org/32862847759.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406473/normal_600f04b475703.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://luxorofanogefa.rf.gd/bufiju.pdfIn PDF document text
    • https://s3.amazonaws.com/xisefowu/aadat_punjabi_song.pdfIn PDF document text
    • https://s3.amazonaws.com/jarirotexab/autodesk_viewer_2014_64_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/xukanomarexumu/adjectif_anglais_francais.pdfIn PDF document text
    • https://s3.amazonaws.com/sezewu/51787632741.pdfIn PDF document text
    • https://s3.amazonaws.com/vexosafugunu/alkane_alkene_alkyne_reactions_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibebulosaxug/balfour_v_balfour_1919.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_off0000da12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA12 5212 bytes
SHA-256: 85584b5ccbd8b9ea6b4322ff10beceaad552663864f957dd6acd25ddd9e8396c
font_01_sfnt_off0000eb8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB8A 21832 bytes
SHA-256: 8430b73ace1c71b5df1da636eadc3bfdb8500ac491831eb742c6968a5b0439c2