Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2e3985c0a85dfae…

MALICIOUS

PDF

76.0 KB Created: 2021-01-29 01:32:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 73be22dc87437588abcbcbb978927c2f SHA-1: 510e5b052dbfede6bafec8f938e03735f7589eb3 SHA-256: b2e3985c0a85dfae91dd3b793c77039727505b5073131f379793882d0cc4b24e
244 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
  • 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/wb?keyword=retractable%20blade%20battletech In PDF document text
    • https://pumazamobu.weebly.com/uploads/1/3/0/8/130874095/gesividimasuxupaji.pdfIn PDF document text
    • http://kfnwejfnkwheklf.space/barber_shop_san_antonio_ibizawtwiv.pdfIn PDF document text
    • https://kozamewibigox.weebly.com/uploads/1/3/0/8/130874388/kumibobiviwi.pdfIn PDF document text
    • http://datingdate.site/tevixurigufuregagltvp.pdfIn PDF document text
    • http://nicepics.xyz/46907082718bwoio.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365628/normal_5fc85084101fb.pdfIn PDF document text
    • http://itfamily.info/marvel_stadium_parking_promo_codevyaon.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457332/normal_600e8734aec55.pdfIn PDF document text
    • http://tk-time.site/truck_simulator_europe_2_download_uptodown5b78z.pdfIn PDF document text
    • https://zakekeru.weebly.com/uploads/1/3/4/5/134584110/vevebamim.pdfIn PDF document text
    • https://wiwupaluw.weebly.com/uploads/1/3/1/6/131606778/271535.pdfIn PDF document text
    • http://bobr.space/lirusijitijei3wb8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417049/normal_5fff5254bc5eb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476939/normal_5fed8edecc941.pdfIn PDF document text
    • https://lawagupavuraxap.weebly.com/uploads/1/3/4/6/134616311/64948a4bec5396d.pdfIn PDF document text
    • https://zuriloteva.weebly.com/uploads/1/3/4/6/134623588/68d32d587ac.pdfIn PDF document text
    • http://leoidet.xyz/filadelfia_pelicula_completa_en_espaol_gratis_toy_story_4kz9qb.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/sazixipame/88136214137.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_off0000ec4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC4E 4996 bytes
SHA-256: 1b6e7afb691cdea005c481fbc2a2b04e7a122fef49a71ebeb7846b86b2cb20c8
font_01_sfnt_off0000fd3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD3E 11092 bytes
SHA-256: 0849f974d342a399a1e22de9ce788861d8d7ba8aadf49de9e693d32f11540a56