Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ec07ad3f8207df2…

MALICIOUS

PDF

67.5 KB Created: 2021-02-17 03:15:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6dfdf61266061812cfb91430b3728277 SHA-1: fbcf94d06570453180b9f793cace7f3fe31ed6a5 SHA-256: 4ec07ad3f8207df27a77ac29344f1d4f54ea8c1e154eed01369ac39967572528
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://baarspo.ru/wix?keyword=speed+queen+awn412sp111tw01+parts+manual PDF link annotation
    • https://somotudodij.weebly.com/uploads/1/3/4/6/134699902/baziv.pdfIn PDF document text
    • https://cdn.sqhk.co/bajipugotox/31oxggf/sugazezitik.pdfIn PDF document text
    • http://xuridikak.22web.org/mudorobivimepa.pdfIn PDF document text
    • https://cdn.sqhk.co/joduragenep/2Sb1Gjd/buzz_cut_haircut_with_beard.pdfIn PDF document text
    • http://lamatokatov.22web.org/aashiqui_2_songs_mp4_naa_songs.pdfIn PDF document text
    • https://cdn.sqhk.co/janawezexoj/d2gijhL/53945429846.pdfIn PDF document text
    • https://toromadon.weebly.com/uploads/1/3/4/5/134523466/nitaxipinevoteku.pdfIn PDF document text
    • https://cdn.sqhk.co/tubafejog/bYHIPgd/free_slot_casino_games_cleopatra.pdfIn PDF document text
    • http://jinomikezed.iblogger.org/gmat_sentence_correction_worksheets.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vamudijikepefos.rf.gd/satitusofegufakimulun.pdfIn PDF document text
    • http://togugufi.epizy.com/tencent_game_buddy_64_bit.pdfIn PDF document text
    • http://zedorufusoli.rf.gd/centre_de_formation_aftral_nantes.pdfIn PDF document text
    • http://bibosisiv.epizy.com/alien_covenant_hd_movie_tamil_dubbed.pdfIn PDF document text
    • https://s3.amazonaws.com/pegebunov/95396803020.pdfIn PDF document text
    • https://s3.amazonaws.com/tejuvonixag/wh_questions_answerable_by_yes_or_no.pdfIn PDF document text
    • http://risitikavaj.rf.gd/13._1_fluid_pressure_worksheet_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/zafaronivaj/how_to_manually_drain_whirlpool_cabrio_washer.pdfIn PDF document text
    • http://dimexibagumaza.epizy.com/81231371210.pdfIn PDF document text
    • http://ruzoguniwu.epizy.com/mumezeziwuwef.pdfIn PDF document text
    • http://daponub.epizy.com/rang_de_basanti_video_songs_mp4.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_off0000c911.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC911 5840 bytes
SHA-256: 92238854deb7b293e7353ca7ce85f7225369b11f55d3b45ff6173b1b8a8fc618
font_01_sfnt_off0000dcf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCF1 10488 bytes
SHA-256: 0737569e987470409034b753de4a712a73973fd87837e7b5d882d2b5e26a1412