Malicious PDF — malware analysis report

Static analysis result for SHA-256 90182d458095be30…

MALICIOUS

PDF

63.1 KB Created: 2021-02-22 12:31:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 8f4ffffd54a46143a78b5b8251df2833 SHA-1: d9063f91179cc30e6d401543c0d19b0fe27b4724 SHA-256: 90182d458095be30d05f4d55d2268a5f251581a0d2afe9b1334849e322ab3853
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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://jacksth.ru/wix?keyword=t+rex+dash+google+game PDF link annotation
    • https://dutizadip.weebly.com/uploads/1/3/4/8/134889078/pexate.pdfIn PDF document text
    • http://reduslimitaly.website/mogubekiteruvuv4ti28.pdfIn PDF document text
    • https://pudorexejuvaw.weebly.com/uploads/1/3/1/4/131455832/jubusapilozedu.pdfIn PDF document text
    • http://purpless.vip/sindh_rented_premises_ordinance_1979cf3at.pdfIn PDF document text
    • http://lazadacostumercenter.com/contending_theories_of_international_relations_dougherty1ic8o.pdfIn PDF document text
    • http://formblckr1.xyz/nevewujidokezejafebopojaxp1sy.pdfIn PDF document text
    • https://cdn.sqhk.co/sawibevas/JKmghjg/90854165493.pdfIn PDF document text
    • https://cdn.sqhk.co/dibirolinu/yhdge52/denimesi.pdfIn PDF document text
    • http://soldatskaya6.ru/545877316314dv3.pdfIn PDF document text
    • https://vokinojen.weebly.com/uploads/1/3/4/8/134851280/fuzukemijirimelaxixi.pdfIn PDF document text
    • https://bebabigi.weebly.com/uploads/1/3/5/9/135977904/gedazimezodejig_dizagi_zetaw.pdfIn PDF document text
    • http://adanakebap.org/mixerosogajitigukynsc.pdfIn PDF document text
    • https://mepapezivodeno.weebly.com/uploads/1/3/0/9/130969154/lewezu.pdfIn PDF document text
    • http://nikaold.site/whistler_975_radar_detector_manualuntec.pdfIn PDF document text
    • http://cheatyou.site/childs_play_3_putlockerjy2ww.pdfIn PDF document text
    • http://liwenodubabirib.iblogger.org/niwalapubotutena.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jibavorom.rf.gd/assamese_new_all_song_2018.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_off0000bb7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB7C 5256 bytes
SHA-256: dadd5ea1a111bd1ec8cd63fd7e59ac6075324019781603f4d24312b4f9949b0d
font_01_sfnt_off0000cd35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD35 10128 bytes
SHA-256: c2542f55022e6d20e781ec59c487ec3120847bc0a524fc05e6705c2b20aeaadd