Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa56d4818421650c…

MALICIOUS

PDF

71.8 KB Created: 2021-02-22 15:55:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 915a2e1503ea522ce3fd259aaa94f958 SHA-1: 7cbc735dc256d21bde2dbfe0e5d96901df57f087 SHA-256: aa56d4818421650c62cdaba944df5c4136876aecb9db61d8aa2d54131f580fd3
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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=abu+garcia+black+max+combo PDF link annotation
    • https://cdn.sqhk.co/dujagazatad/haTm7Jj/tepowijupane.pdfIn PDF document text
    • https://cdn.sqhk.co/depifozopupe/id0gZjg/wivalegugapepadito.pdfIn PDF document text
    • https://cdn.sqhk.co/jibetovo/gfiihei/japan_train_simulator_games_online.pdfIn PDF document text
    • http://zesamoa.online/nulipisajivoxitafenot54.pdfIn PDF document text
    • https://cdn.sqhk.co/kidatufo/jcijjev/domofiwinidawupadusa.pdfIn PDF document text
    • https://mevinabepoke.weebly.com/uploads/1/3/2/7/132740553/kamirafaz_lopeso_kulud_rusole.pdfIn PDF document text
    • http://rabota-plus.club/break_through_wall_design5lsyz.pdfIn PDF document text
    • http://akfb.online/614986433034y08p.pdfIn PDF document text
    • http://doordash.fun/ximolizemebezvrlu.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/xoxaneral/60017641319.pdfIn PDF document text
    • https://s3.amazonaws.com/megodipewukitoj/poseviwix.pdfIn PDF document text
    • http://nakepusejedub.epizy.com/25092280744.pdfIn PDF document text
    • http://kefuvazaleneze.rf.gd/ryobi_10_table_saw_switch.pdfIn PDF document text
    • https://s3.amazonaws.com/sorapobuk/css_profile_worksheet_2019-_20.pdfIn PDF document text
    • https://s3.amazonaws.com/mejifavo/duvebedukiwowegodireda.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_off0000d698.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD698 5200 bytes
SHA-256: 2df9927bee8813a17b1139dfb0985e35f8f589e2520e7e5dea2d9d563e54273e
font_01_sfnt_off0000e848.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE848 11944 bytes
SHA-256: 9b38a34c8b9b416971a7557d8df5e9686cf2dff2f14b1b8f045aad4b2bb58c30