Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2f20507ab71c648…

MALICIOUS

PDF

65.7 KB Created: 2021-02-24 07:21:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a72559a7b0f217feebfc3635352c00a1 SHA-1: c100959ac427ac3704a0548b643eee28f7bc67bb SHA-256: d2f20507ab71c64831090d1580601c583038e1b2dd5aa057f3417bc01ed9150f
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://crophysi.ru/123?utm_term=how+do+i+know+if+my+bosch+oven+is+self+cleaning In PDF document text
    • https://cdn-cms.f-static.net/uploads/4383680/normal_600dca4b56647.pdfIn PDF document text
    • https://tozadifoxu.weebly.com/uploads/1/3/4/9/134904498/nanabunetirigabuv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376610/normal_600910072c566.pdfIn PDF document text
    • http://terem.space/sample_online_passport_application_form_ckgsw27uy.pdfIn PDF document text
    • http://ca-manalapan.space/warspear_online_classic_pixel_mmorpg_mmo_rpg_mmopa6pd.pdfIn PDF document text
    • http://oyuncuxx.com/603304502142xut1.pdfIn PDF document text
    • http://magnitoli-2ekran.site/encadrer__la_dizaine_prs_ce2sgoie.pdfIn PDF document text
    • http://rankingcoach-apps.com/is_p90x3_good_for_weight_loss4caoo.pdfIn PDF document text
    • https://rilawexiretik.weebly.com/uploads/1/3/4/2/134267086/5883850.pdfIn PDF document text
    • http://shtangelkipokupkiitd.online/mobile_camera_bokeh_effecti2te3.pdfIn PDF document text
    • https://menuzuxa.weebly.com/uploads/1/3/1/0/131070619/lelefekej-parebemadu.pdfIn PDF document text
    • https://gugeropufil.weebly.com/uploads/1/3/0/8/130874104/c4b568546b.pdfIn PDF document text
    • http://instahelpforbusiness.com/78870423218upes6.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/zabevog/30305371541.pdfIn PDF document text
    • https://s3.amazonaws.com/gowebabuxogiro/nobel_saregamapa_all_song_free.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_off0000c3a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3A5 5760 bytes
SHA-256: 599f40a55ba30f67eec3b9e7827926bf107236731fd684fd74fda4a6df4e9a78
font_01_sfnt_off0000d743.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD743 10400 bytes
SHA-256: 3981805c11f15d68691df43cf7bfaacb362d40e403aba9cf471d4331e9965c27