Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d0028b3cc0f9326…

MALICIOUS

PDF

71.5 KB Created: 2021-02-23 07:20:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 87ac4a58e996c1bac973c95cd3af3a23 SHA-1: abeaffa0a3ce8b7ad1a56ae3a00edd04319ccbf1 SHA-256: 5d0028b3cc0f9326cfa9ffcc0e4e6d411b745af4c317b70c6498a5902f29f269
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jacksth.ru/aws?utm_term=how+to+replace+grohe+faucet+cartridge PDF link annotation
    • http://www19216801.site/48910642100l8ub1.pdfIn PDF document text
    • http://buyervannakupitvsem.xyz/xagemefe5ggv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455645/normal_5ffcd2a28d2e5.pdfIn PDF document text
    • https://bemetezebore.weebly.com/uploads/1/3/4/8/134882820/niregole-momogedod-vezurerowar-jadidorureve.pdfIn PDF document text
    • http://it50disconto.info/que_son_los_antibioticosthzig.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464862/normal_602034b30f0b3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385422/normal_5fedde72b744b.pdfIn PDF document text
    • http://armlur.space/airtel_net_packoyend.pdfIn PDF document text
    • http://opensalon.xyz/cuete_de_res_informacion_nutricionalebkez.pdfIn PDF document text
    • https://cdn.sqhk.co/selugijibix/idAggii/sukukidavawofoxiwapi.pdfIn PDF document text
    • https://lurenosofen.weebly.com/uploads/1/3/0/7/130740325/b4bf0841ad.pdfIn PDF document text
    • http://wwnews.site/gipusulexos4t11s.pdfIn PDF document text
    • http://neojust.ru/zedewusukol13vvh.pdfIn PDF document text
    • https://vabeluzaxudi.weebly.com/uploads/1/3/4/8/134884936/ef5028ae.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408875/normal_5fe2c0c22f4cf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000da99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA99 5292 bytes
SHA-256: f765ba7592f62654bedf27d3eae4e1568d4dd80df061b159a6a12e8bf9dd2281
font_01_sfnt_off0000eca1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECA1 10788 bytes
SHA-256: 15bcf1776d9e83391b529639e21959a34033954339751635dd5a90db6c312eaf