Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a481a2617c6de1d…

MALICIOUS

PDF

75.9 KB Created: 2021-03-01 20:27:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 62e8b50058e8ad1f3e3597b12cd4fe73 SHA-1: 888af8aaae1d133e54d391b8cb0d89018213b6f5 SHA-256: 2a481a2617c6de1da27ea8b698e63e24f2d54cb402fd8cfd41bf40e499968f5f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://dugedepap.ru/award?keyword=how+to+play+cyberpunk+2077+on+ps4+early PDF link annotation
    • http://3bki.ru/the_magicians_book_3_ending1lwy5.pdfIn PDF document text
    • https://zadopelujon.weebly.com/uploads/1/3/4/8/134884154/5577aeee782.pdfIn PDF document text
    • https://cdn.sqhk.co/dajebala/OjimYjg/17144135223.pdfIn PDF document text
    • https://rifakinuzofu.weebly.com/uploads/1/3/0/8/130815009/konekasareruf-xuposutumi-xituxeref.pdfIn PDF document text
    • http://vnds-super.space/supple_leopard_resultsmcd53.pdfIn PDF document text
    • http://kmplitka.shop/xexaxudenixodex620u7.pdfIn PDF document text
    • https://dozogifelezu.weebly.com/uploads/1/3/4/3/134313369/mexagiz.pdfIn PDF document text
    • http://idealslim-italiaofficial.site/49761588496uan0u.pdfIn PDF document text
    • https://donabetolemi.weebly.com/uploads/1/3/1/6/131637402/6a0d7991bb8de.pdfIn PDF document text
    • https://cdn.sqhk.co/vidikusupegu/Dpujjji/wijekimi.pdfIn PDF document text
    • https://cdn.sqhk.co/letijefa/0jhSbeh/steam_gift_card_mexico.pdfIn PDF document text
    • https://modefijibig.weebly.com/uploads/1/3/6/0/136011483/1618432.pdfIn PDF document text
    • https://cdn.sqhk.co/nilofixogezu/jPibMk5/mavoxoxosuborupuk.pdfIn PDF document text
    • https://cdn.sqhk.co/lopijikuvi/gnijr6t/free_online_3d_shooting_games_multiplayer_no_download.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/gomakobez/sidekaselemetidi.pdfIn PDF document text
    • https://s3.amazonaws.com/tiniruru/kapebanabowafomosume.pdfIn PDF document text
    • https://s3.amazonaws.com/rizezobabub/addition_games_for_grade_1_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwuzerijofa/4488881723.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_off0000ea7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA7C 5728 bytes
SHA-256: cf55b22f1ff91c966b1b2f38be06b1b4e2e4898d5f229106a2e44282d37f819d
font_01_sfnt_off0000fe2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE2C 10568 bytes
SHA-256: d16400a48d2b155aada3b93f5e9b435b7982e82d1c9226799fe75220985bc0e6