Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c78926489060085…

MALICIOUS

PDF

73.1 KB Created: 2021-02-28 04:51:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 47a0cfc6d3931b110eaddab032745128 SHA-1: bfccc35c76ad9671347ffb92419d0b70b9eb8e25 SHA-256: 3c789264890600857054c224b0d2a2a36fb233d3fd46f81580ade58601a78328
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://jottigo.ru/award?keyword=bank+1+catalytic+converter+replacement+cost PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366401/normal_60174768650e9.pdfIn PDF document text
    • https://cdn.sqhk.co/jepivitixiwo/hahXTjj/tawovulapowa.pdfIn PDF document text
    • http://fukuzowi.sportsontheweb.net/the_water_is_wide_john_gorka_chords.pdfIn PDF document text
    • http://waystep.site/muwolawojisavenoruginanavy2u5k.pdfIn PDF document text
    • http://idealica-ituficiale.website/lavurorubelikerigq3q30.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421474/normal_602239866c858.pdfIn PDF document text
    • https://cdn.sqhk.co/rifusofuwedi/Mgekjid/dropped_ice_cream_cartoon.pdfIn PDF document text
    • https://cdn.sqhk.co/miwataxanis/rYahaaV/void_tyrant_priest_guide.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366317/normal_5fc8de41a0016.pdfIn PDF document text
    • http://gefosezidubajoz.scienceontheweb.net/matlab_2015b_for_mac_free_download_full.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366347/normal_6018f2d7e0520.pdfIn PDF document text
    • https://cdn.sqhk.co/sixepatexup/243Crgi/rolling_stones_pink_tie_dye_shirt.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453560/normal_6011db1a3dccd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sakigekoxigukil.epizy.com/speakeasy_las_vegas_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/pexodugosa/film_boboiboy_galaxy_episode_15.pdfIn PDF document text
    • https://s3.amazonaws.com/wapabefizosumi/cisco_ie-_2000-_8tc-_g-_b_datasheet.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_off0000e173.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE173 5404 bytes
SHA-256: 2b90162605e7a42b9cace555f924680ca99f5b8efe9365fde0f2056bfcbfdfcc
font_01_sfnt_off0000f3d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3D7 10412 bytes
SHA-256: b8e458ec5b796ba1c2da7ff1988f5f0f541467576860a02f1fc2e8892325dcd5