Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5a4273af5d39752…

MALICIOUS

PDF

76.1 KB Created: 2021-02-23 01:05:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 872b26387515e787f330c097bab054ef SHA-1: a37613d8739074f531f8f9a0141eed8224360233 SHA-256: e5a4273af5d397528f68dc5077058bb3223d465e11a5f79bf0268515070dbdf5
244 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.
  • 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/strik?utm_term=how+to+log+into+ako+without+a+cac In PDF document text
    • http://vefavirona.22web.org/shopping_vocabulary_worksheet.pdfIn PDF document text
    • https://cdn.sqhk.co/vifejoneses/iNttEgg/piano_notes_chart_with_letters.pdfIn PDF document text
    • https://vetazewufa.weebly.com/uploads/1/3/2/8/132814418/susejaburo_monugi_pewodaju_gagotuner.pdfIn PDF document text
    • http://velixone.66ghz.com/75263076679.pdfIn PDF document text
    • http://gitipakivo.iblogger.org/adobe_photoshop_lightroom_6_for_pc.pdfIn PDF document text
    • http://wifefavowe.iblogger.org/formation_windev_20_iso.pdfIn PDF document text
    • https://dukopovofozevi.weebly.com/uploads/1/3/5/2/135295758/luvin.pdfIn PDF document text
    • https://cdn.sqhk.co/videgogaf/djhk5ie/90s_music_radio_2000.pdfIn PDF document text
    • https://pezevibasa.weebly.com/uploads/1/3/5/3/135306661/549308.pdfIn PDF document text
    • https://cdn.sqhk.co/xogixute/hcYjhhe/boat_wallpapers_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/paragapup/dJFjgaL/tribal_mania_hacked_apk_download.pdfIn PDF document text
    • http://wedavinonuvovu.22web.org/57448495285.pdfIn PDF document text
    • https://cdn.sqhk.co/vajirasavuz/ijihabW/unicorn_photo_booth_frame_diy.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/fivebo/fun_halloween_worksheets_for_kindergarten.pdfIn PDF document text
    • http://bidexegope.epizy.com/oracle_spatial_developer_s_guide.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_off0000eba6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBA6 4904 bytes
SHA-256: 3433c840a6a4070951a27a2345226db3b623db26102ff0f911fd2b97574c6fcf
font_01_sfnt_off0000fc6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC6B 11600 bytes
SHA-256: cfa1ca5e574ade99f8fd5fd291199a3639ffe8b5d29b058baecf834a891554b2

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