Malicious PDF — malware analysis report

Static analysis result for SHA-256 2077ba3aa2dcae8c…

MALICIOUS

PDF

70.2 KB Created: 2021-01-28 11:13:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 44e22a2c687c9755886e463166e8675c SHA-1: acf9917110d9dec829a48c794a76292f571d8a96 SHA-256: 2077ba3aa2dcae8c9c176e0dcbe00fb38b654949cbb9508455efdbbf4180655f
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jottigo.ru/aws?utm_term=descargar+whatsapp+de+colores+apk+gratis PDF link annotation
    • http://dupomixu.iblogger.org/cartoon_bird_pic.pdfIn PDF document text
    • http://womans30planet.com/crazy_bike_attack_racing_mod_apk_android_1nwl8t.pdfIn PDF document text
    • https://cdn.sqhk.co/temejikowewa/fEogehd/black_friday_2020_walmart_tires.pdfIn PDF document text
    • http://soldonlakewood.com/76172314480m8zyt.pdfIn PDF document text
    • https://cdn.sqhk.co/modajili/gjmAgfD/candy_legends_codes_mejoress.pdfIn PDF document text
    • http://bt-management.website/461352147374fw3v.pdfIn PDF document text
    • http://24goodstore.site/euro_truck_simulator_for_playstation_23xr4t.pdfIn PDF document text
    • http://fastdonwload.space/pobufisoxabanevitumedekodejf6.pdfIn PDF document text
    • http://bettermoneytips.com/make_your_own_cupcake_wedding_cake_stand4xlt1.pdfIn PDF document text
    • http://segwaywheelchair.ru/city_block_translation_in_spanishjy9o1.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/dovulavavo/72073190494.pdfIn PDF document text
    • http://bawavejukedosuv.epizy.com/gentle_rain_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/widuxade/good_times_santa_cruz_voter_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/mamukawaxatali/winter_wind_chopin_piano_sheet_music.pdfIn PDF document text
    • http://sujetokotew.rf.gd/who_guidelines_breastfeeding_hiv_positive.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_off0000d81f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD81F 5488 bytes
SHA-256: 84b28eaf7e42e170033376cbeafaf6f71197a688d120a70216059d1580a8dd1e
font_01_sfnt_off0000eadc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEADC 9584 bytes
SHA-256: 9e0af7774a7a87326027f018567eeb247da3d81c8e7969e2384bb4d413743c42