Malicious PDF — malware analysis report

Static analysis result for SHA-256 169fbf17b250ed40…

MALICIOUS

PDF

72.2 KB Created: 2021-02-15 18:32:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ed0fc674d98545deef1217e79fcea643 SHA-1: e18b1d19bfad12eaa420083ed392d54b86bab3d9 SHA-256: 169fbf17b250ed40382b0dfa17be8dc712c037cdba955e3d4118335a25c02939
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/123?utm_term=how+long+is+3rd+harry+potter+movie PDF link annotation
    • https://faxezufag.weebly.com/uploads/1/3/0/8/130874059/mowoxigonifarevijox.pdfIn PDF document text
    • http://sayfelengs.space/monster_pop_bubble_shooter_games_downloads7cxk.pdfIn PDF document text
    • http://ziwegiwe.iblogger.org/formica_countertop_kitchen.pdfIn PDF document text
    • http://kozovuxe.22web.org/coolie_no_1_bhojpuri_movie_free.pdfIn PDF document text
    • https://cdn.sqhk.co/leburogutu/evWiioX/4979639537.pdfIn PDF document text
    • https://cdn.sqhk.co/zuronenom/iiHribW/89505411180.pdfIn PDF document text
    • https://dupemokuko.weebly.com/uploads/1/3/4/7/134759865/webepori.pdfIn PDF document text
    • https://zujuwaxi.weebly.com/uploads/1/3/5/3/135307850/ba02b51a.pdfIn PDF document text
    • http://qupieasy.online/32410819238kgrpx.pdfIn PDF document text
    • https://cdn.sqhk.co/titabofasika/ejaZje8/bloons_td_5_download_free_full_version_pc.pdfIn PDF document text
    • https://zemizipip.weebly.com/uploads/1/3/4/0/134098502/gutipobemi_wutosusinafam_sixalunixujuri_xavisuduja.pdfIn PDF document text
    • https://larigagip.weebly.com/uploads/1/3/4/8/134887586/dad05ecf.pdfIn PDF document text
    • https://bematurom.weebly.com/uploads/1/3/4/8/134886193/bugul-fodefugi-katageb.pdfIn PDF document text
    • https://kamapapidez.weebly.com/uploads/1/3/5/9/135962567/jamisasimepuxaputuv.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/lomuper/jenup.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_off0000d9a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9A0 5752 bytes
SHA-256: 2c5f5e7391fd801876beb46291aa4e70a812d67f505e5bfd55050d53283dc106
font_01_sfnt_off0000ed2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED2C 11816 bytes
SHA-256: e2eab8abe993fec51fcba683c92568a31f1f30ff1d5a9c5051c1632878c4e9a6