Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d3b83ff46160ad6…

MALICIOUS

PDF

71.7 KB Created: 2021-01-30 15:01:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 335b10ef8f73b99e11ebabe4e926c4e0 SHA-1: 744c4716ad3dc0b74f0f3950b84bbaaa9d05d1f8 SHA-256: 1d3b83ff46160ad6a11cc60c15ed963a968e848752ebb24cfceec4b7fd601c5f
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://leonvi.ru/wb?keyword=video%20downloader%20for%20likee%20no%20watermark PDF link annotation
    • http://weinmvc.net/kifesapudixelo055c1.pdfIn PDF document text
    • http://logmeinnow.xyz/separating_equilibrium_exampleqoozr.pdfIn PDF document text
    • http://topfrag.rip/84244191097wl7pf.pdfIn PDF document text
    • https://levukuwaxumofet.weebly.com/uploads/1/3/1/3/131383949/wefarefanaset-toranowuwasa.pdfIn PDF document text
    • https://cdn.sqhk.co/rivogigaweb/ZkqGifO/mudoxig.pdfIn PDF document text
    • http://shopeuro.pro/the_realreal_new_york_ny_10021tuqe9.pdfIn PDF document text
    • http://yognat.space/aquarium_archerfish_tank_sizeksfiu.pdfIn PDF document text
    • https://cdn.sqhk.co/kupulifip/eV8Iugi/94864944531.pdfIn PDF document text
    • https://cdn.sqhk.co/gedofovel/jbLWjgu/octopie_a_game_shakers_app_apk.pdfIn PDF document text
    • https://fezowekufeda.weebly.com/uploads/1/3/3/9/133999429/wurifokev.pdfIn PDF document text
    • http://italywom.space/among_us_game_online_macte1p8.pdfIn PDF document text
    • http://sdorovie-sustavi.xyz/rpg_fernz_gate_apk_mod13iyr.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/magapeguwabe/xixumanipepuvulunedile.pdfIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/canela_thin_font.pdfIn PDF document text
    • https://s3.amazonaws.com/zevutebulaworel/arbitrary_waveform_generator_ppt.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_off0000ddfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDFB 4996 bytes
SHA-256: e62a0404f6d4bb653aec59ab64371dc8ea4656344d42fe7b2a6c3c6df87cd1be
font_01_sfnt_off0000eefe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEFE 10268 bytes
SHA-256: 67b471cfe9638436ca04d81504badb2b461e841b6be85811df6a2cf5db1f4986