Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b6eb797be2c9f7e…

MALICIOUS

PDF

69.4 KB Created: 2021-02-23 07:42:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 51ac1edbd9187bf01a7d67decffedc28 SHA-1: 371d58f93adcea66c17a26ab99eb31ad5066d4ad SHA-256: 6b6eb797be2c9f7eb5153475bf3c052994b8363c45608fc538b9ba7e470f411c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/wix?keyword=forest+hills+central+high+school+phone+number PDF link annotation
    • https://jofudetazowus.weebly.com/uploads/1/3/1/6/131606688/begoke.pdfIn PDF document text
    • https://xovadesunuzavam.weebly.com/uploads/1/3/4/4/134479636/nitejolumigewufadoj.pdfIn PDF document text
    • https://lozezuxugi.weebly.com/uploads/1/3/4/0/134016676/f1dc4b3.pdfIn PDF document text
    • https://sojimivur.weebly.com/uploads/1/3/4/8/134883767/2841131.pdfIn PDF document text
    • https://widijusadapabi.weebly.com/uploads/1/3/0/9/130969823/6d007fd883d7be8.pdfIn PDF document text
    • https://bezofaxifi.weebly.com/uploads/1/3/1/6/131606652/7963673.pdfIn PDF document text
    • https://givodevivunafa.weebly.com/uploads/1/3/1/8/131871579/7176b853f.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/gekixadonuru/47650793924.pdfIn PDF document text
    • https://s3.amazonaws.com/nisoxow/butyl_acetate_formation.pdfIn PDF document text
    • http://wuvuwipiwizovid.epizy.com/anatomy_3d_atlas_apk_full.pdfIn PDF document text
    • http://vebavibokifoko.epizy.com/losijevuvowufuvitoditeboj.pdfIn PDF document text
    • http://geralumumavol.rf.gd/rutupegidevebulitu.pdfIn PDF document text
    • http://nuxebezojav.epizy.com/wexoso.pdfIn PDF document text
    • http://nejuzuwesikodik.rf.gd/momanibadovurelawowo.pdfIn PDF document text
    • https://s3.amazonaws.com/remavuj/68075553920.pdfIn PDF document text
    • https://s3.amazonaws.com/patotale/pdf_rearrange_page_order_online.pdfIn PDF document text
    • https://s3.amazonaws.com/zebarufuridorur/attestato_di_conformit_fisioterapia.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_off0000d3c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3C0 5444 bytes
SHA-256: d8a50709492e648338573dd90d6d3d4da4114d4c015158bee810b29cbcc26905
font_01_sfnt_off0000e620.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE620 10068 bytes
SHA-256: e58bd60327c72bae93061b578306fa02ea7fe6840cfe55b455a35ab8893ae775