Malicious PDF — malware analysis report

Static analysis result for SHA-256 d029e17130217a72…

MALICIOUS

PDF

71.2 KB Created: 2021-02-12 23:56:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: cae3207513a9f4c851aa9c63806e84cc SHA-1: ea47dacf6fbc864e0f67b02c2f5ff153dbb8cb0d SHA-256: d029e17130217a72453c71667528deb41df994486962c191c834815b4e5a26dc
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/wb?keyword=bike%20trainer%20app%20guide In PDF document text
    • http://nuwiratuzitezep.22web.org/internship_report_on_building_construction_company.pdfIn PDF document text
    • http://sokesiket.22web.org/muzupid.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420448/normal_5fd80bbda524f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385197/normal_5ff6970c928ca.pdfIn PDF document text
    • http://letilemugemin.66ghz.com/92982282606.pdfIn PDF document text
    • http://naluwuzamo.22web.org/aegisub_khng_hin_apply_karaoke_template.pdfIn PDF document text
    • http://dufasobogunojat.22web.org/27334524164.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zorarizasodefa.epizy.com/rick_steves_venice_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zamuriza/xcode_command_line_tools_size.pdfIn PDF document text
    • https://s3.amazonaws.com/zidosozawok/ectopic_pregnancy_guidelines_2019.pdfIn PDF document text
    • http://topuwagib.epizy.com/saki_saki_song_video_full_hd.pdfIn PDF document text
    • http://vubulebutaxa.epizy.com/bloon_td_battles_hacked_apk.pdfIn PDF document text
    • http://pasigajixivete.epizy.com/whatsapp_status_song_sohnea.pdfIn PDF document text
    • https://s3.amazonaws.com/saxefi/emulateur_android_sous_mac.pdfIn PDF document text
    • http://goduzidexemave.epizy.com/68257747551.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_off0000d984.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD984 5032 bytes
SHA-256: 3635a2227a1f27529035c3c261003043d110f8dcb15b22612803bba2cb53023e
font_01_sfnt_off0000eab6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAB6 11104 bytes
SHA-256: 9112215ade2d1d738b9f84dc9be2412bd4fa60f9d29e81fd0b0da42e5abb5466