Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2b1572bb1d6a4a3…

MALICIOUS

PDF

68.7 KB Created: 2021-03-03 09:24:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 2b21a6c66579b80a20818b88b20f20a7 SHA-1: 94829aabf062dd19fee0b7db85b6be0e0b686866 SHA-256: d2b1572bb1d6a4a38f9b978ba28a88af4e5bca4501e6b70f62e80bf3c0e24eae
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://baarspo.ru/award?keyword=bad+boy+book+title+ideas PDF link annotation
    • https://zuripuwa.weebly.com/uploads/1/3/2/7/132740693/zarufirikewegejeke.pdfIn PDF document text
    • https://lipulutopokun.weebly.com/uploads/1/3/5/9/135964399/linanavawa_lubevitifov_wojelovakexavo.pdfIn PDF document text
    • https://fubexomufepa.weebly.com/uploads/1/3/4/8/134850999/5157107.pdfIn PDF document text
    • http://pawomodom.medianewsonline.com/how_do_i_find_network_security_key_for_wifi.pdfIn PDF document text
    • http://4kuhd.me/graphic_design_software_free_trialupj78.pdfIn PDF document text
    • http://zutolewe.mywebcommunity.org/nesco_digital_pressure_cooker_manual.pdfIn PDF document text
    • http://nazomomomujo.iblogger.org/s3_is_cyclic_or_not.pdfIn PDF document text
    • https://migawonakizize.weebly.com/uploads/1/3/1/6/131637147/gebaxodipufef_fofalugebosis_ratifefovif_nujemujepej.pdfIn PDF document text
    • http://beautysss.site/agile_estimating_and_planning_by_mike_cohnwj02g.pdfIn PDF document text
    • http://1ux.site/ukulele_chords_free_download85iw5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zowofiz.myartsonline.com/saris_cycleops_fluid_2_trainer_review.pdfIn PDF document text
    • https://s3.amazonaws.com/dukajevo/47533703325.pdfIn PDF document text
    • https://s3.amazonaws.com/rorives/eclipse_cdt_c_11.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_off0000d305.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD305 5076 bytes
SHA-256: 12ee00a342a4911b6b055f5fcf5bd2f7abb9d1b8a249a10cbd1ce294b6bee4e5
font_01_sfnt_off0000e466.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE466 9904 bytes
SHA-256: 2488f2192d85808b11c4b2ed10ed19b211bf131246e0d43b7d258928676bc34c