Malicious PDF — malware analysis report

Static analysis result for SHA-256 d53065de6edba9a2…

MALICIOUS

PDF

77.4 KB Created: 2021-01-25 01:53:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 032b3d65f3c52d10c60ae717be513308 SHA-1: 8cfdcb3739a4c43054b27368a9f1e9819e085292 SHA-256: d53065de6edba9a2142954a9ffd2857ceed7df15caf494d91478300ad0675be7
166 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
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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://bologen.ru/123?utm_term=best+fiends+hack+ios PDF link annotation
    • https://kedaregedowe.weebly.com/uploads/1/3/5/3/135321867/7872634.pdfIn PDF document text
    • https://futinubub.weebly.com/uploads/1/3/5/3/135328842/xusisidopomiz.pdfIn PDF document text
    • https://cdn.sqhk.co/delojiwuguj/cvgehdL/64436783705.pdfIn PDF document text
    • http://tk-time.site/85150813568vk2rc.pdfIn PDF document text
    • http://bighome.space/38634216498hsn14.pdfIn PDF document text
    • http://itawegan.fun/kajidelufenefbkfy.pdfIn PDF document text
    • http://cactusvpn.live/simple_birthday_cake_decoration_ideas_at_home5ofph.pdfIn PDF document text
    • http://bbflowers.net/tariruzavoiojt4.pdfIn PDF document text
    • https://susemozud.weebly.com/uploads/1/3/2/8/132814624/5785781.pdfIn PDF document text
    • http://help-copyrightviolationhelpcenter.com/kipotaxojebobedenaxegujandcr1.pdfIn PDF document text
    • http://ketrovk.xyz/radio_online_romania_magic_fmku07a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://verirajoxa.epizy.com/scrambled_sentences_worksheets_4th_grade.pdfIn PDF document text
    • http://fenigubigona.epizy.com/zidebutazuvatirazokubimu.pdfIn PDF document text
    • http://sewoxoxitif.rf.gd/66968321650.pdfIn PDF document text
    • https://s3.amazonaws.com/pirosisob/libro_1000_bosquejos_para_predicadores.pdfIn PDF document text
    • https://s3.amazonaws.com/tonemakopinibem/model_code_of_judicial_conduct_2011.pdfIn PDF document text
    • http://sewexojin.rf.gd/duplicate_marksheet_pune_university.pdfIn PDF document text
    • https://s3.amazonaws.com/boxalewijim/bahubali_film_movie_video.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_off0000f169.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF169 5092 bytes
SHA-256: c5325d4d66c38ebc63d9a3d642aa635216677f1df132415cc929a0f6856f980c
font_01_sfnt_off000102c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102C2 11152 bytes
SHA-256: 09bcc1b915842f846e9e947bfb16065a648a9e8800e96c91f40136eec25a0ba6