Malicious PDF — malware analysis report

Static analysis result for SHA-256 e225d22604df2db3…

MALICIOUS

PDF

69.7 KB Created: 2021-02-27 06:26:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 4d6e36342c5322be3d7aca411d51036e SHA-1: 5f208067ca302e9907d68facbf839e8ec895a459 SHA-256: e225d22604df2db35e874398dcdf834250649b49b75d22b477addc2d4217e5d2
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://seumenha.ru/award?keyword=how+to+use+fagor+innovation+oven PDF link annotation
    • https://mutikotamibe.weebly.com/uploads/1/3/0/8/130874320/1802156.pdfIn PDF document text
    • http://soldatskaya6.ru/fifa_futsal_laws_of_the_game_2019h9thm.pdfIn PDF document text
    • https://selotisatopus.weebly.com/uploads/1/3/1/8/131856190/3808121.pdfIn PDF document text
    • http://leoidet.xyz/filadelfia_pelicula_completa_en_espaol_gratis_toy_story_4kz9qb.pdfIn PDF document text
    • http://nowukusox.mypressonline.com/duzilobasujefasasepuwijo.pdfIn PDF document text
    • https://zusifupovososix.weebly.com/uploads/1/3/2/6/132680896/litolorabow.pdfIn PDF document text
    • http://gagimubu.mywebcommunity.org/ossaa_fastpitch_softball_bat_rules.pdfIn PDF document text
    • https://legelopupusida.weebly.com/uploads/1/3/4/3/134350366/2277975.pdfIn PDF document text
    • https://ledapenilodaro.weebly.com/uploads/1/3/1/0/131070651/jakuzek-kedevusasutuma-dekuliroluk.pdfIn PDF document text
    • http://fasekafalig.scienceontheweb.net/kupabanenosomovasoguli.pdfIn PDF document text
    • https://todatotosikuped.weebly.com/uploads/1/3/0/7/130740429/6586dbf2dfde9a.pdfIn PDF document text
    • https://momigetufi.weebly.com/uploads/1/3/4/8/134876151/5765397.pdfIn PDF document text
    • https://xezatitewifesel.weebly.com/uploads/1/3/4/3/134393938/dc22088cacd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/dogazisuze/inference_worksheet_tes.pdfIn PDF document text
    • https://s3.amazonaws.com/takateg/b._c._a_course_information_in_marathi.pdfIn PDF document text
    • http://vakizonozajaxe.onlinewebshop.net/fun_writing_topics_for_adults.pdfIn PDF document text
    • https://s3.amazonaws.com/remeranexe/12676759675.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c960.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC960 4900 bytes
SHA-256: 636ada1005b5c0f01b82b11d6eb09655c383f94e368d70fa0dd1bd8c588abb07
font_01_sfnt_off0000da2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA2E 9856 bytes
SHA-256: 37330f7b49dda7c5f54ef0888097c1b19e9452839a46163cf88d653da4eec387
font_02_sfnt_off0000fbaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBAA 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361