Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 414ed0f4c146b5c3…

MALICIOUS

PDF / .VIR

675.6 KB Created: 2024-03-21 16:07:00 Authoring application: Poppler-utils First seen: 2024-12-09
MD5: 22ab098ffb7c8571fafb51638728676c SHA-1: e4616b6c1b968e8bc5a1375298dd805e82be5bdc SHA-256: 414ed0f4c146b5c30d4e5e32e72b4ddacc62556013353ec7fa0dd3d948e85452
126 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0353

Heuristics 6

  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • 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 http://www.hobby-planet.com/rank.cgi?id=429&mode=link&url=https://vezodaw.online/wp-content/uploads/2024/03/simalu.pdf=10126709 In PDF document text
    • http://tislibrary.koha.kiwi.nz/cgi-bin/koha/tracklinks.pl?uri=https://uploads-ssl.webflow.com/65f001f122a8c8171e1e2a0b/65f7bf5d40ae1c68f85679fe_75552435850.pdf;biblionumber=8044In PDF document text
    • https://momxxxmovies.pro/xxx.php?link=video-bookmark&skip_sell=true&url=https://5.imimg.com/data5/SELLER/Doc/2024/3/401392773/KJ/WQ/CU/216890333/3321333878.pdfIn PDF document text
    • https://namotor.ru/bitrix/redirect.php?goto=https://yuvamhome.de/wp-content/uploads/2024/03/muwil.pdfIn PDF document text
    • https://log24.pl/ad-redirect/?type=baner&id=55363&url=https://uploads-ssl.webflow.com/65f04321f48052305e3775dd/65f7b21b057a602dc25f6158_newefufivalubolemowu.pdfIn PDF document text
    • http://www.old.pseb.ac.in/outgoinglinks?URL=https://assets.website-files.com/65dc919c2f219b1429c9731e/65f7c3f1a05c1a6291e96764_55690296112.pdfIn PDF document text
    • http://www.elit-apartament.ru/go?https://sepawaju.online/wp-content/uploads/2024/01/lijukowo.pdfIn PDF document text
    • https://fitabukuru.colod.co.za/89500777569602866689224580?pidimifapixaxuguzofix=suvanaxujonexarodepuzakitabaxijugipajawumizixaxiliketetetogepaletusobezuvelupufobokubagibutujalijemunixoxogagunuzebimomojamanogadigolefoturigilelodafugereditugeruxudebuninawaziwebadutokiluxanopawikemafo&keyword=guided+eastern+turkey+hunts&kasizegodebizojagekukinexoxupuvoxuvibiderezogigatemixoxozeboxuparavurebetitopobilimexi=noxobabapudiwefezodewonasutavaxiwakisukimomiwopupinodumevexaverixomunemijegeboletabitisomefotejoviturajomukirafidilIn PDF document text
    • https://fitabukuru.colod.co.za/89500777569602866689224580?pidimifapixaxuguzofix=suvanaxujonexarodepuzakitabaxijugipajawumizixaxiliketetetogepaletusobezuvelupufobokubagibutujalijemunixoxogagunuzebimomojamanogadigolefoturigilelodafugereditugeruxudebuninawaziwebadutokiluxanopawikemafo&keyword=guided+eaPDF link annotation
    • https://fitabukuru.colod.co.za/89500777569602866689224580?pidimifapixaxuguzofix=suvanaxujonexarodepuzakitabaxijugipajawumizixaxiliketetetogepaletusobezuvelupufobokubagibutujalijemunixoxogagunuzebimomojamanogadigolefoturigilelodafugereditugeruxudebuninawaziwebadutokiluxanopawikemafo&keyword=guided+eastern+turkey+hunts&kasizegodebizojagekukinexoxupuvoxuvibiderezogigatemixoxozeboxuparavurebetitopobilimexi=noxobabapudiwefezodewonasutavaxiwakisukimomiwopupinodumevexaverixomunemijegeboletabitisomefotePDF link annotation
    • 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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off000a4395.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000a4395.bin)
🗂 Part of campaign: shared payload a02f67deb0 41 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000a4395.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA4395 16196 bytes
SHA-256: cd42bc0a4ee4854d88cbde5a7dc3eb498682d2f13672c936a13b76f59696c70b
font_01_sfnt_off000a6d54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6D54 8940 bytes
SHA-256: a02f67deb084b7ce8e02d7004994a9dd7e3132fe24919a42c6f0df6ed367c188