Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffa352d8c11ff3a8…

MALICIOUS

PDF

70.5 KB Created: 2021-02-16 22:07:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 54f9d4f94cec0719533854b1fbf3339f SHA-1: 8bca733333df32974fe77e67372031ad2398dee9 SHA-256: ffa352d8c11ff3a83034fd19306d30d63a0ff76adec098636b8fdda83f87a1b2
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/wix?keyword=deep+deep+deep+deep+snow PDF link annotation
    • https://viwutexotopuj.weebly.com/uploads/1/3/4/5/134522905/a62ccaf776.pdfIn PDF document text
    • https://bezujaseda.weebly.com/uploads/1/3/1/4/131437953/7fbe6894.pdfIn PDF document text
    • https://cdn.sqhk.co/difixoruze/jL7haug/puvajemasotezofufuxok.pdfIn PDF document text
    • https://desotidibig.weebly.com/uploads/1/3/0/7/130775813/3816795.pdfIn PDF document text
    • https://cdn.sqhk.co/dilizilozok/gfbsL0A/boxamekapezerexatafusal.pdfIn PDF document text
    • http://rekusigixebisuk.22web.org/dosisofizigobi.pdfIn PDF document text
    • http://wezituvod.22web.org/cloudformation_template_lambda_example.pdfIn PDF document text
    • https://cdn.sqhk.co/novitovikor/zeUPyhh/tafheem_ul_quran_malayalam_software_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/dewavasese/TG1sXgf/saguxotirumuvo.pdfIn PDF document text
    • http://kekebum.22web.org/melozoleme.pdfIn PDF document text
    • https://jesisime.weebly.com/uploads/1/3/4/8/134886507/1148353.pdfIn PDF document text
    • https://cdn.sqhk.co/sanojuxako/fjgXqeP/mp3_mp4_player_free_download_for_pc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://sotatelovutegep.epizy.com/bar_graph_powerpoint_templates_free.pdfIn PDF document text
    • http://miwofalixi.rf.gd/histogram_vs_bar_graph_worksheet.pdfIn PDF document text
    • http://najefitisefema.epizy.com/mini_paper_buyers_guide_cody_wy.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE6A 4368 bytes
SHA-256: 5d6f7777ac27422ca198df01fc372ec8ec0d7856d84b12bd23350891689b08d9
font_01_sfnt_off0000dd4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD4E 9808 bytes
SHA-256: 3809beef9c067642009c46a7556b5972b09345e538b1c197d7699276474d9a17
font_02_sfnt_off0000febc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEBC 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c