Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3f9f10c9c7bfa75…

MALICIOUS

PDF

72.2 KB Created: 2021-02-28 07:46:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 699e2aa253836abe81c28ba2e8d09ad1 SHA-1: b47d6b3f3ee09d3e79bda4763e25a6d0a17586e2 SHA-256: d3f9f10c9c7bfa7537c49f0a7a8c2442d68442d331fae0f0d9d88e6936884758
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/aws?utm_term=how+to+open+graco+snugride+click+connect+stroller PDF link annotation
    • https://sewurinibe.weebly.com/uploads/1/3/4/5/134595705/3073304.pdfIn PDF document text
    • https://wujipiledulom.weebly.com/uploads/1/3/4/6/134695719/fb64eab4b4.pdfIn PDF document text
    • https://gamitodotabezoj.weebly.com/uploads/1/3/1/4/131453651/b30c8b56.pdfIn PDF document text
    • https://tusixifowidafoj.weebly.com/uploads/1/3/1/4/131437116/xexolifezodijezebib.pdfIn PDF document text
    • http://xaxikobovivo.22web.org/filejulama.pdfIn PDF document text
    • https://vuwapelenepaje.weebly.com/uploads/1/3/4/7/134705438/8141035.pdfIn PDF document text
    • https://cdn.sqhk.co/biposuba/x75idhd/boomerang_furniture_cardiff.pdfIn PDF document text
    • http://milanomoda-italy.site/dilolavikq8bg6.pdfIn PDF document text
    • https://molavose.weebly.com/uploads/1/3/5/3/135350427/d90dcf1.pdfIn PDF document text
    • https://cdn.sqhk.co/mapiwoda/cQgjhhj/nudoze.pdfIn PDF document text
    • https://cdn.sqhk.co/sawitofi/jjSpicc/71451925000.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://laxilajolagavaj.rf.gd/atelier_801_transformice.pdfIn PDF document text
    • http://jaxilikujo.rf.gd/56920644435.pdfIn PDF document text
    • http://deravamosu.rf.gd/avanza_2013_manual_book.pdfIn PDF document text
    • http://kozifina.epizy.com/lujitukuzusabozobub.pdfIn PDF document text
    • http://febarufowit.epizy.com/weather_report_pune_yesterday.pdfIn PDF document text
    • http://xiwinuxad.rf.gd/sogadinuterav.pdfIn PDF document text
    • http://dizepeliw.epizy.com/how_many_books_are_in_miss_peregrines.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_off0000de44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE44 5360 bytes
SHA-256: 36e69b1f5e41380b006ec52ca4ce98a358c16bfd7d9f58a7115d8483b7529fca
font_01_sfnt_off0000f09e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF09E 10180 bytes
SHA-256: ede5410ce4436dd27f8ab767f3e58575357762dfbde6941d86ec9fa566717ba3