Malicious PDF — malware analysis report

Static analysis result for SHA-256 4606003842035908…

MALICIOUS

PDF

83.7 KB Created: 2021-03-28 19:06:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 5a4dad73eff11bd6641ce8b3d4cd2034 SHA-1: eb3bcc1da5f844ca3d7800f7f14b0d93e5f13313 SHA-256: 460600384203590846aff9f7c538a2607050417a2e1e8cd84a72a48673661030
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, with at least one identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting an attempt to drive traffic to various sites. The ClamAV detection and ML classifier further support its malicious nature, likely for phishing or distributing further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/strik?utm_term=theme+of+imperialism+in+heart+of+darkness+pdf In PDF document text
    • http://top-shop-store.website/best_flowchart_software_for_mac_freem9w3w.pdfIn PDF document text
    • http://love-your-lips.online/edgar_allan_poe_o_barril_de_amontilladook0lr.pdfIn PDF document text
    • http://komaxinatobofe.medianewsonline.com/dieta_saludable_para_perder_peso.pdfIn PDF document text
    • https://dimofusuraz.weebly.com/uploads/1/3/4/6/134677966/0573a00f28.pdfIn PDF document text
    • https://zujuwedidikaf.weebly.com/uploads/1/3/4/3/134375258/3b44a05e393af.pdfIn PDF document text
    • http://how2clever.com/descargar_halo_combat_evolved_para_pcb57ac.pdfIn PDF document text
    • http://pazifelurup.medianewsonline.com/twilight_book_series_amazon.pdfIn PDF document text
    • https://xivibexewodexaz.weebly.com/uploads/1/3/1/3/131397964/dc8b1491480.pdfIn PDF document text
    • https://povemiloten.weebly.com/uploads/1/3/4/6/134608376/bufoveroramedup.pdfIn PDF document text
    • https://kojulijorivo.weebly.com/uploads/1/3/4/3/134329781/warezuzopezunofe.pdfIn PDF document text
    • https://ganegekisawaji.weebly.com/uploads/1/3/1/4/131406809/b431048.pdfIn PDF document text
    • https://divekoworubu.weebly.com/uploads/1/3/4/0/134017674/90c1acdc7f6be9.pdfIn PDF document text
    • https://goxapuvuf.weebly.com/uploads/1/3/2/7/132741714/vibagixokek_zoxapatewanumop_givujot.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/zarevizebi/audi_black_car_images.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/bosch_axxis_washer_dryer.pdfIn PDF document text
    • https://s3.amazonaws.com/nonabafat/el_lazarillo_de_tormes_segundo_tratado_resumen.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/my_registration_sheet_ut.pdfIn PDF document text
    • http://pikubub.onlinewebshop.net/muji_catalog_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/jidosatikim/29260910633.pdfIn PDF document text
    • https://s3.amazonaws.com/jidosatikim/blink_book_appointment.pdfIn PDF document text
    • http://pevogikuxupeja.onlinewebshop.net/pujobawuzevupim.pdfIn PDF document text
    • https://s3.amazonaws.com/jusagi/zuvax.pdfIn PDF document text
    • https://s3.amazonaws.com/wixanarer/keurig_b70_parts_list.pdfIn PDF document text
    • https://s3.amazonaws.com/muwemivumazulax/logitech_f710_driver_windows_10_64_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/medaliwifufugel/skyrim_special_edition_night_mother_mod.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_off00010831.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10831 5296 bytes
SHA-256: ba267a8ff3df5b122824cbfa43b636d9ca782a93fe5095e867f1359c867e3c97
font_01_sfnt_off00011a03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A03 11096 bytes
SHA-256: 9ab7c209826bda9736c8e2e04b2e32ec108c62fbe4482eece437e41d1c67f8ae

Open this report in the interactive analyzer, or submit your own file for analysis.