Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ab6c9edf05546fa…

MALICIOUS

PDF

63.2 KB Created: 2021-02-11 08:50:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 8e80b17d55f4bb00d6ecbaf904ec99b0 SHA-1: ed281a58602d70cb4b87c9c276854f0203778f8a SHA-256: 2ab6c9edf05546faf9e1b41bf08b8161a5ba2474ca1b5c523ed0618cd5463eda
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 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.
  • 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://yafferge.ru/wb?keyword=los%20angeles%20lakers%20news%20bleacher%20report In PDF document text
    • http://piter.store/juwebigotobovijibafb9w8t.pdfIn PDF document text
    • http://particuliers-societegenerale.xyz/lefivizeu4wii.pdfIn PDF document text
    • http://lagutobokoza.22web.org/90884770890.pdfIn PDF document text
    • http://venira.su/free_lute_sheet_musicnor7k.pdfIn PDF document text
    • http://startovaya.ru/dejeraguruzotukogudatanazgy5ni.pdfIn PDF document text
    • http://good-production9.site/panasonic_aw-_he40hk_ptz_manualz2y93.pdfIn PDF document text
    • http://by-roof.ru/10555488549xgodl.pdfIn PDF document text
    • http://zeropium.com/kagorunazujigipuwe5s8w6.pdfIn PDF document text
    • https://belexikezetuvom.weebly.com/uploads/1/3/0/7/130775063/zelodaseg-tegurizulolalur-wotufi-valekugopugenud.pdfIn PDF document text
    • http://podeves.xyz/dijuwuwifammnz6.pdfIn PDF document text
    • https://kuwuxegizeduki.weebly.com/uploads/1/3/2/6/132695805/bulapa-rewigi-kosekavex-danusawitafanas.pdfIn PDF document text
    • http://bigowet.xyz/81371921303tijy4.pdfIn PDF document text
    • http://nickned.me/grocery_list_app_iphone_and_androidalffv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lizusesujujes.rf.gd/in_on_under_next_to_between_worksheet.pdfIn PDF document text
    • http://zulexesovo.epizy.com/dapofi.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_off0000b971.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB971 5432 bytes
SHA-256: 342370640f1f33b86824afa330fb9603a7128bee01fe813e15714c5f56b5e985
font_01_sfnt_off0000cbff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBFF 10596 bytes
SHA-256: 9fe80ae277dfef07cb797a1a630291ee253079a61316d204ee904b6a1285d5f7