Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f63af1b1d3f531c…

MALICIOUS

PDF

65.6 KB Created: 2021-02-03 05:41:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 2ab2a21320d4dca5f5e785b6f1acafbd SHA-1: 653b8f5788eac179aace79e5efe524a8c377bf2f SHA-256: 6f63af1b1d3f531c8ec6fd8d0edd7aa29ce9b11c0971ad26181286629caa8e8c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://baarspo.ru/123?utm_term=laserlyte+center+mass+green PDF link annotation
    • http://gimerixifaxet.iblogger.org/tepifurogunove.pdfIn PDF document text
    • http://tozufokoxogo.22web.org/88148277939.pdfIn PDF document text
    • https://xixasoxi.weebly.com/uploads/1/3/5/3/135324484/wameveralib-xosalivafarus-nixav.pdfIn PDF document text
    • https://cdn.sqhk.co/jiluputumusi/djhJhen/9225910630.pdfIn PDF document text
    • https://bodonovovo.weebly.com/uploads/1/3/1/6/131607174/3087231.pdfIn PDF document text
    • https://mitezexevas.weebly.com/uploads/1/3/4/5/134525922/841b12ebed8187f.pdfIn PDF document text
    • https://xifofenanupov.weebly.com/uploads/1/3/4/8/134857182/vonimipaluke.pdfIn PDF document text
    • http://paypallsecurity.com/together_with_english_language_and_literature_class_10_solutions1hblz.pdfIn PDF document text
    • http://nominasacra.ru/dark_souls_3_chaos_infusionhnj1r.pdfIn PDF document text
    • https://nijasofefovo.weebly.com/uploads/1/3/4/7/134719995/majixegi-mepadirafefekan-fejuzuga.pdfIn PDF document text
    • http://pasasem.iblogger.org/kedoxamozatetag.pdfIn PDF document text
    • http://gadokuzepot.22web.org/ragad.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://butadiviwev.rf.gd/weather_report_kuwait_abdali.pdfIn PDF document text
    • http://dimogotewebi.epizy.com/autotune_7_free_cracked.pdfIn PDF document text
    • http://pabovabavuwemet.rf.gd/pokemon_games_for_android_gbc_emulator.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_off0000c544.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC544 5164 bytes
SHA-256: 2e637e4fe523e100cd4e0d94beb42a8250a807d8ada76d23339a3ef2a029a8cd
font_01_sfnt_off0000d6c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6C8 10280 bytes
SHA-256: 1dd4dafda524a52f6be518ff2f91708d5f55d0903b06f85178625dead3d5f487