Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd0ace7f9d44e54a…

MALICIOUS

PDF

72.4 KB Created: 2021-02-15 04:35:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 0a66c1039ed1b3e2ceaa06b55e4c21cd SHA-1: 8c0e2c9b5752af503a20fff2188bc15485b36418 SHA-256: fd0ace7f9d44e54a7d7f374916e66cabcb1ee63147af83b3dd64c87018dbbff0
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://bologen.ru/aws?utm_term=function+in+excel+spreadsheet PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4415929/normal_5fc5fb7430388.pdfIn PDF document text
    • http://andyhongdigital.com/ginnie_springs_weather_report76c04.pdfIn PDF document text
    • https://nisikigibifug.weebly.com/uploads/1/3/0/8/130813528/jiguzilugitezub.pdfIn PDF document text
    • https://gitufigekuxos.weebly.com/uploads/1/3/4/6/134634758/jafuxuvip.pdfIn PDF document text
    • https://junipupupu.weebly.com/uploads/1/3/4/7/134739756/77e2530a35fb00.pdfIn PDF document text
    • https://fujolununepa.weebly.com/uploads/1/3/4/6/134683680/2194900.pdfIn PDF document text
    • http://allostar.buzz/78714883205paakk.pdfIn PDF document text
    • http://vzruvayarttraff.xyz/fojubizesd8r6d.pdfIn PDF document text
    • http://dhl-order.info/fibirakafowu393ry.pdfIn PDF document text
    • https://tumunonapuve.weebly.com/uploads/1/3/1/3/131379134/5947232.pdfIn PDF document text
    • https://nuvisinuxaxo.weebly.com/uploads/1/3/1/3/131383681/gokuxipaduje_zatad_lupagupabije_delavufakez.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/vazisi/90720080959.pdfIn PDF document text
    • https://s3.amazonaws.com/lusabifef/mtg_arena_ravnica_draft_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zodawanuror/degezijopav.pdfIn PDF document text
    • https://s3.amazonaws.com/kuxuxemu/42986846349.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_off0000df97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF97 5184 bytes
SHA-256: cea37d25899d77beffc028df5b6a53acb7d630a6d14c5458334eabcf3a53808a
font_01_sfnt_off0000f138.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF138 10344 bytes
SHA-256: 518f688526c85307d14c4c58cac15a8b0b1dcacc439dbea492d1bbc7cfa4e675