Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7d9ee96e5b1b6b5…

MALICIOUS

PDF

71.5 KB Created: 2021-02-28 21:50:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0581ec9c8bba15349e59083b078062ea SHA-1: ff0f2184920f72796a8eeb130bd8a5db57f83a0a SHA-256: f7d9ee96e5b1b6b555e03ca59b7501314638f96046314844b91f237de4014c0e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://leonvi.ru/strik?utm_term=how+to+connect+mackie+usb+mixer+to+computer PDF link annotation
    • https://jevokave.weebly.com/uploads/1/3/4/2/134266272/muxikaxexavot.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478378/normal_5ff386da6e208.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446026/normal_600a03a1d1a14.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452835/normal_603286b94b62e.pdfIn PDF document text
    • https://fatatarulawug.weebly.com/uploads/1/3/4/4/134474158/tixewifawivosaxitu.pdfIn PDF document text
    • https://ruvogoxilukab.weebly.com/uploads/1/3/2/8/132813998/a8cd0.pdfIn PDF document text
    • http://gimakelodikovij.iblogger.org/crash_course_biology_14_worksheet_answers.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417413/normal_601a306a41b23.pdfIn PDF document text
    • http://keziwogifivoza.22web.org/116987587.pdfIn PDF document text
    • http://fexodubavilukub.22web.org/ubuntu_14.04_free_download_32_bit_iso.pdfIn PDF document text
    • http://gixotakopopunod.22web.org/45720166284.pdfIn PDF document text
    • http://gosologesegob.iblogger.org/medical_biochemistry_lab_manual.pdfIn PDF document text
    • https://wibugosavuzatug.weebly.com/uploads/1/3/4/3/134349607/goluzupatasuzil.pdfIn PDF document text
    • http://tolagipifumer.iblogger.org/svuotare_cestino_su_android.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wometopususap.rf.gd/21243300513.pdfIn PDF document text
    • https://s3.amazonaws.com/dowavelaxam/97403873295.pdfIn PDF document text
    • http://gagipuriligeme.rf.gd/narakepewakawur.pdfIn PDF document text
    • http://zisajevejeniw.epizy.com/rujukewanak.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_off0000db13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB13 5372 bytes
SHA-256: 87f5c9b6305a383e16abfd6486547f57a76db398b75c5f39925c8c5a803f3e6c
font_01_sfnt_off0000ed51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED51 10324 bytes
SHA-256: 96e9d54e3d279495b9d9672eaae0112084823bfc09fb21ec816914b115488a82