Malicious PDF — malware analysis report

Static analysis result for SHA-256 998a2110be37333c…

MALICIOUS

PDF

68.5 KB Created: 2021-02-23 22:48:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 12597ba3f9745a81b93849f8b62db125 SHA-1: fdb86d398610e89170989473f16e6be98e45d343 SHA-256: 998a2110be37333c5f16ff24d1f97666b4db981ec7f9c493f74fcd7cb4cea89b
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/wix?keyword=cross+tie+walker+chords PDF link annotation
    • http://busforpay.online/jabolewtjxp6.pdfIn PDF document text
    • http://verification-help.business/how_to_reset_air_conditioner_after_power_outageuz126.pdfIn PDF document text
    • http://wurulef.22web.org/division_word_problems_worksheets.pdfIn PDF document text
    • http://helplnstagramcontact6088757.com/como_ser_un_consultor_exitoso_librofi3gw.pdfIn PDF document text
    • http://tejanexes.iblogger.org/42499173485.pdfIn PDF document text
    • https://fupobemoxu.weebly.com/uploads/1/3/4/6/134669325/gediziwusabi.pdfIn PDF document text
    • http://dodapim.22web.org/raliputekaralimupi.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/wusone/84836418865.pdfIn PDF document text
    • http://seromol.epizy.com/zinepinusafudarowazuz.pdfIn PDF document text
    • http://ralomefin.epizy.com/thriller_album_video_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/juduk/yankee_doodle_boy_sheet_music.pdfIn PDF document text
    • http://dujawupiraxep.rf.gd/spotify_premium_apk_free_music.pdfIn PDF document text
    • http://kefujaforu.rf.gd/rigedowefuvipares.pdfIn PDF document text
    • https://s3.amazonaws.com/welanisowari/bleeding_time_test_procedure.pdfIn PDF document text
    • http://risepaxazitomep.rf.gd/92629537066.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_off0000c6d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6D9 5088 bytes
SHA-256: b8547e90ab11ee6d419e88314d23787b4bc3b8a8fd050787200c492947ab5811
font_01_sfnt_off0000d829.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD829 14440 bytes
SHA-256: d4c3073321b10d14d15c47886f99771abded2dee2d977395b2f46db5f9b318e9