Malicious PDF — malware analysis report

Static analysis result for SHA-256 27431340d2e61206…

MALICIOUS

PDF

72.5 KB Created: 2021-02-17 14:56:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 205a8a9558c3e649038e3162e9a63578 SHA-1: c184cacbfab0560cbebfa7a77a1e950adc02a29d SHA-256: 27431340d2e6120645ba3aea2852b5037cb7ddc22084e59dce031291604f69b8
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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=lds+seminary+manual+doctrine+and+covenants PDF link annotation
    • https://cdn.sqhk.co/jabakujivim/ijdhcWl/25849118200.pdfIn PDF document text
    • https://bopexetijajab.weebly.com/uploads/1/3/1/4/131411078/marudanakelo.pdfIn PDF document text
    • https://zezevibowavaki.weebly.com/uploads/1/3/4/8/134854125/302a6234be8053.pdfIn PDF document text
    • https://fedubipogumuwu.weebly.com/uploads/1/3/1/3/131379546/62f48d2155d15.pdfIn PDF document text
    • https://cdn.sqhk.co/mujawiru/sgeDje8/jepabovirakefupazinesuf.pdfIn PDF document text
    • http://wow50.pro/mechanics_of_materials_8th_edition_solutions_gere7d9xo.pdfIn PDF document text
    • https://pugiputofal.weebly.com/uploads/1/3/4/7/134740318/37a068c9ba1.pdfIn PDF document text
    • http://center-san.ru/mudafufobogusasiviwomuxmpi9.pdfIn PDF document text
    • http://form-lnstagramcopyrightservice.com/tagupepabiboretubevotunjvjg.pdfIn PDF document text
    • https://wilubiluzitewi.weebly.com/uploads/1/3/1/4/131413550/3572333.pdfIn PDF document text
    • http://liko-sneakers.com/16103009638ggwxx.pdfIn PDF document text
    • https://dibevapanowodi.weebly.com/uploads/1/3/0/7/130776811/bufitugiseriteb_sakinuno_xezibamaxipi_wafezid.pdfIn PDF document text
    • https://cdn.sqhk.co/pirujezexod/jehahbq/kasukoravafipulufuk.pdfIn PDF document text
    • https://tetunabirudav.weebly.com/uploads/1/3/0/8/130874278/baxaxekagup.pdfIn PDF document text
    • https://cdn.sqhk.co/rifelefiw/dhgjMii/gomo_phone_contact.pdfIn PDF document text
    • http://worldthailand.fun/troy_bilt_tiller_pony_manual0o0ze.pdfIn PDF document text
    • http://9gusevshop.website/webinar_autocad_civil_3d_2019_download9qy0h.pdfIn PDF document text
    • http://gufutaca1.xyz/adding_text_to_photo_android1aahl.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/gedexim/bhojpuri_film_mp4.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_off0000dfe3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFE3 5188 bytes
SHA-256: 5d775cfda46bf35ab5139e6209ffaffa1c7620c4cf981430851a0f413c4b36ac
font_01_sfnt_off0000f17c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF17C 10612 bytes
SHA-256: 0dbaa43fc3e93ad2059c78ca23e725a5fad976950b237a4f332ade64883537b4

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