Malicious PDF — malware analysis report

Static analysis result for SHA-256 771b052738d8227a…

MALICIOUS

PDF

72.6 KB Created: 2021-02-28 20:42:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 45c8750fb7579a3d47c27e6ba0448e28 SHA-1: 8f059ffa79efce2a8899d821b2c22d937a655bd8 SHA-256: 771b052738d8227ac091dac605d5ea319336c1b1bf773d7ba80ad5b085400b97
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://lozipotod.ru/wix?keyword=marvel+contest+of+champions+hack+online+generator PDF link annotation
    • http://fazejajogavu.medianewsonline.com/gopro_hero_3_manual_silver.pdfIn PDF document text
    • https://cdn.sqhk.co/jovuvufoxet/Tajbjia/gun_club_2_mod_apk_rexdl.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380531/normal_600be3ef38572.pdfIn PDF document text
    • https://zomerasojukoluw.weebly.com/uploads/1/3/4/7/134769652/c4fd0472ba.pdfIn PDF document text
    • https://nedovewa.weebly.com/uploads/1/3/5/3/135316636/vetedilalu_tafin_zilavifu.pdfIn PDF document text
    • https://betutoza.weebly.com/uploads/1/3/4/8/134899773/dowew_rogugituwilo_kapen_wiwimiro.pdfIn PDF document text
    • https://cdn.sqhk.co/vavewiminiv/2DkJ2el/nazalewa.pdfIn PDF document text
    • https://bexopugizabon.weebly.com/uploads/1/3/4/0/134042324/vovurajut.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wupepiwora.rf.gd/16514775936.pdfIn PDF document text
    • http://toxabose.epizy.com/72662839597.pdfIn PDF document text
    • http://waxivetik.epizy.com/evidence_based_claims_worksheet.pdfIn PDF document text
    • http://naturesivox.epizy.com/miniraza.pdfIn PDF document text
    • http://diwavubodinaroj.myartsonline.com/gravely_ztx_42_parts_list.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/bahara_song_ming.pdfIn PDF document text
    • http://renodiwug.epizy.com/78650030895.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_off0000de99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE99 5560 bytes
SHA-256: 6138e12b18d83d70113aa046b5d9540cd502b46feb1a75b3d026ceb3a8713095
font_01_sfnt_off0000f171.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF171 10580 bytes
SHA-256: 0d0b70041f531813a0b2ef33e747dab0d2e72a94dad9a2b2faa67f1349070192