Malicious PDF — malware analysis report

Static analysis result for SHA-256 41208e9c9d089285…

MALICIOUS

PDF

65.1 KB Created: 2021-02-16 10:20:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a3b3907921b6fa5bb5978e3a3b453593 SHA-1: 7bf6349454a2d2deec49f2e32df8c1eed00ef4e6 SHA-256: 41208e9c9d0892852c0f371a36e095e7bce066538760b3fe98e853b51c2655d8
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://druttle.ru/wix?keyword=matthew+26+study+guide PDF link annotation
    • https://zaxizibu.weebly.com/uploads/1/3/4/6/134672664/2184121.pdfIn PDF document text
    • https://cdn.sqhk.co/tuvameboroke/fjhBgCm/nokoluzagonajimasi.pdfIn PDF document text
    • https://cdn.sqhk.co/ruvonusebex/mjiwbhh/88746536060.pdfIn PDF document text
    • https://fopudodesesiwen.weebly.com/uploads/1/3/4/3/134344932/dudoz.pdfIn PDF document text
    • https://xunatopek.weebly.com/uploads/1/3/2/7/132710497/abb4f2.pdfIn PDF document text
    • https://cdn.sqhk.co/bepesewutu/d5VVgjT/bawiwutefetel.pdfIn PDF document text
    • http://zasopawemumobaw.iblogger.org/kopitejafi.pdfIn PDF document text
    • http://slimerecipe.org/free_excel_spreadsheet_templates_for_small_business5slop.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://punolubumima.epizy.com/afcat_answer_key_2018_official.pdfIn PDF document text
    • http://mafilijesov.epizy.com/6373668446.pdfIn PDF document text
    • https://s3.amazonaws.com/rimepusox/affidavit_format_for_identity_proof_india.pdfIn PDF document text
    • https://s3.amazonaws.com/rurovikejigibu/autocad_3d_drawing.pdfIn PDF document text
    • http://zubeleboju.epizy.com/firepower_1000_series_datasheet.pdfIn PDF document text
    • http://xoxadexol.rf.gd/77896935537.pdfIn PDF document text
    • https://s3.amazonaws.com/fowonaxul/kevolilejalulifukola.pdfIn PDF document text
    • https://s3.amazonaws.com/viromibukoleliw/45012297668.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_off0000c13a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC13A 5444 bytes
SHA-256: 6daff8ef5a613ac1b868dff4d65f240cfccaf55e71ea480b3ff462d817b6fb33
font_01_sfnt_off0000d3e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3E5 10460 bytes
SHA-256: 626fb6a9fe5a16dd1f04cc50957875bf5430357afb67714912a6ac99afc99b75

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