Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e0b011ad9ef630f…

MALICIOUS

PDF

71.7 KB Created: 2020-12-30 14:48:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 07ecb4589ce78eeeef6fb93c8ac65c24 SHA-1: 2b68cda7b29277cdb9869c945fc5bf7cd7d70e7a SHA-256: 5e0b011ad9ef630f21ffd61b1e02b9f2d559cfe1327160d390f6f7baf705fece
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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.
  • 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://traffmen.ru/wb?keyword=mod%20among%20us%20skins%20for%20minecraft%20java%20edition In PDF document text
    • https://static.s123-cdn-static.com/uploads/4375353/normal_5feb3b9a5d7a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367275/normal_5f89fd93a6e5e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463554/normal_5fb3e9cde5167.pdfIn PDF document text
    • https://pagapepekajarop.weebly.com/uploads/1/3/4/3/134307963/0b70ed5189581.pdfIn PDF document text
    • https://zakiguranul.weebly.com/uploads/1/3/4/4/134480990/570764.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420014/normal_5fb74fc550c5c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424026/normal_5f9d8c67bc170.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370275/normal_5f99de5a4b353.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1e51d91-ab8d-4a7b-8ed2-cab3659dee98/persona_5_devils_curve.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50129d6f-a1a2-45be-8ae7-9690dc8fb605/how_long_is_tonights_game_of_thrones_premiere.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b86f3f5-2ca3-4c96-b007-b97cb893f4d8/jutuzeponikoke.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f698a928-85fe-4356-ad5a-4310e8ac8ebb/fire_emblem_heroes_kana.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/61f7c53e-d9cf-4891-b1ea-d7b8fdb86e62/descargar_musica_gratis_mp3_para_laptop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/718d6881-7fb5-477d-a710-6081eb12aba4/ps_266_queens.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62c2871e-96ca-45af-9457-88ab3d179da2/globeone_data_promos_apk.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_off0000d8b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8B5 5512 bytes
SHA-256: 726b06521922df989b51b52deecd16b0e2c0909c41b1ba6b4d7b8322f4364bae
font_01_sfnt_off0000eb85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB85 11132 bytes
SHA-256: d22c3e6a57b42997b21186ee9be7a85bb09c981cdc397cdb1879ad1798e4c51c