Malicious PDF — malware analysis report

Static analysis result for SHA-256 7914e9c9b5327dff…

MALICIOUS

PDF

71.5 KB Created: 2021-02-17 21:38:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 9122a3aa217ae00a307d03cd8eb02804 SHA-1: 570d2fe20daa60f1d24d927e899cc79fc894685a SHA-256: 7914e9c9b5327dff196d9bfff29fb4c425084f7f862b446a865c16fbace853ae
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 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://seumenha.ru/wix?keyword=palindromes+word+whizzle+answers PDF link annotation
    • https://gidutuzewefira.weebly.com/uploads/1/3/1/3/131380066/ponezopesapi.pdfIn PDF document text
    • https://pamigewome.weebly.com/uploads/1/3/4/6/134631685/xafaladutogegafuzit.pdfIn PDF document text
    • http://metalllift.ru/geotechnical_engineering_jobs_montana8l6c6.pdfIn PDF document text
    • https://fexagire.weebly.com/uploads/1/3/0/7/130775556/vazopilimorumijax.pdfIn PDF document text
    • http://icub.tech/liwinires7patk.pdfIn PDF document text
    • http://goossyy.online/thanksgiving_2019_fgo_missions_guideo32uv.pdfIn PDF document text
    • http://uscreditinquiry.info/ronibepeb7f2d.pdfIn PDF document text
    • https://pipedexow.weebly.com/uploads/1/3/4/8/134852679/9dcf5144ccce19a.pdfIn PDF document text
    • http://3203epworthcres.com/madcon_beggin_320_kbps3lutf.pdfIn PDF document text
    • https://napajudiweji.weebly.com/uploads/1/3/4/3/134316113/3276193.pdfIn PDF document text
    • http://cmb-accueil.com/angular_6_tutorial_franaisss9jt.pdfIn PDF document text
    • https://mututekabifu.weebly.com/uploads/1/3/4/4/134466573/bunosovanewu_pitaj_senetorewesut_zufozumukaj.pdfIn PDF document text
    • https://jatekokem.weebly.com/uploads/1/3/2/8/132814322/4871820.pdfIn PDF document text
    • https://jagotizepevex.weebly.com/uploads/1/3/4/4/134464701/3084e05.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_off0000dcbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCBD 5208 bytes
SHA-256: 550f1f13a5870410e31dd20478df976bcdf8efe489213abc0d70b4a9bc3edd4a
font_01_sfnt_off0000ee54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE54 10316 bytes
SHA-256: 7d775896d48a0942b98799b87342d1cec47e1cadd6a13de2c218cf8c8191775f