Malicious PDF — malware analysis report

Static analysis result for SHA-256 98f9136e9e3600e5…

MALICIOUS

PDF

60.5 KB Created: 2021-02-19 19:00:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 50c55c190df4c7d1883dad69f6da0211 SHA-1: 69660d7dc1afc74474b611bcb10adaf4f2656a39 SHA-256: 98f9136e9e3600e509d91f1ebe0267e27c3f0ab3d794660bb11709c56e8ce070
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://seumenha.ru/123?utm_term=the+boy+in+striped+pajamas+viewing+guide+answers PDF link annotation
    • https://getezulesu.weebly.com/uploads/1/3/1/0/131071231/2822490.pdfIn PDF document text
    • http://xaninivinekeni.iblogger.org/gsm_activate_auto_dialler_manual.pdfIn PDF document text
    • https://tifimiwarefimi.weebly.com/uploads/1/3/4/8/134895051/varogaseluvuvu.pdfIn PDF document text
    • https://rukufutuseju.weebly.com/uploads/1/3/4/7/134748195/1398053.pdfIn PDF document text
    • http://kowekigoduze.iblogger.org/how_to_shorten_casio_watch_band.pdfIn PDF document text
    • https://kitomejefu.weebly.com/uploads/1/3/4/1/134108571/bugobag.pdfIn PDF document text
    • https://vewenaloviriwu.weebly.com/uploads/1/3/2/8/132816087/089049d27.pdfIn PDF document text
    • https://debugifepini.weebly.com/uploads/1/3/1/0/131070476/13ae1852.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/tarizirefevifab/tamil_actor_movies.pdfIn PDF document text
    • https://s3.amazonaws.com/debiwelof/mezal.pdfIn PDF document text
    • https://s3.amazonaws.com/galinikagopit/gajarivijegum.pdfIn PDF document text
    • https://s3.amazonaws.com/rutufokedizon/pavepinova.pdfIn PDF document text
    • http://kugofabafomozo.epizy.com/jabariya_jodi_full_movie_480p_300mb.pdfIn PDF document text
    • http://keladosa.epizy.com/arangetra_velai_original_bgm.pdfIn PDF document text
    • http://ditajizuru.rf.gd/padusiluf.pdfIn PDF document text
    • https://s3.amazonaws.com/risisipajole/four_part_writing_worksheet.pdfIn PDF document text
    • http://fakeloj.rf.gd/govonuropotobuwo.pdfIn PDF document text
    • https://s3.amazonaws.com/pewibim/fortunate_son_guitar_sheet_music.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_off0000b2dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2DC 5760 bytes
SHA-256: 3d2959768c0ed49def44cf55d3702c2fa981b75dceea7ba2a32fe5d404642731
font_01_sfnt_off0000c65f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC65F 8892 bytes
SHA-256: 4e562748bc18c2dc25ee1b54875eb4bc3e8b94025c290b9b7c85b108afb2939c