Malicious PDF — malware analysis report

Static analysis result for SHA-256 2624f32f1b275cef…

MALICIOUS

PDF

71.9 KB Created: 2021-02-21 14:45:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 9b4126d08d44f6a365fd4f2a3c727295 SHA-1: ca49b9ebe8b8a268d2bef5b82434d067fffc1296 SHA-256: 2624f32f1b275cef33932fd0caf894e9e822facb8de94723635184ecf4e2eb77
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://jacksth.ru/wix?keyword=kingo+superuser+apk+old+version PDF link annotation
    • https://cdn.sqhk.co/riketumes/3cpnrWa/zitoxomaxarasosare.pdfIn PDF document text
    • https://cdn.sqhk.co/xufatirumina/hikgjjc/96799841397.pdfIn PDF document text
    • http://znalomstvavip.site/manga_avatar_creator_onlineuvncl.pdfIn PDF document text
    • https://tirepululavapiw.weebly.com/uploads/1/3/4/5/134576363/jozexesino-rawezagob-labudojeka.pdfIn PDF document text
    • https://guvolobojifo.weebly.com/uploads/1/3/4/7/134733869/2314891.pdfIn PDF document text
    • http://goodnatural.space/oil_water_separator_design_guidelineskx08c.pdfIn PDF document text
    • http://kesawalaxok.iblogger.org/junuxixeli.pdfIn PDF document text
    • http://antonioita.fun/ezreal_guide_2019787bh.pdfIn PDF document text
    • https://bodobazanukabub.weebly.com/uploads/1/3/4/8/134889783/6461205bbd364cf.pdfIn PDF document text
    • https://cdn.sqhk.co/resilano/h00djjk/samsung_notes_on_windows_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/ravawiku/5iiifaq/splendor_definition_antonym.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://loletusu.rf.gd/wekerixunorerixuluginig.pdfIn PDF document text
    • http://katezoluvezile.epizy.com/lirufogotixewo.pdfIn PDF document text
    • http://xijovapafibowuw.rf.gd/wuvokujatimipo.pdfIn PDF document text
    • http://kupobazixivev.rf.gd/pdf_text_editor_free_mac.pdfIn PDF document text
    • http://zoletiwosi.rf.gd/avg_for_windows_7_64_bit.pdfIn PDF document text
    • http://kitojob.epizy.com/free_ableton_live_8_trial_version.pdfIn PDF document text
    • http://wurunuj.epizy.com/zemenasivolavigatemejus.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_off0000dd0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD0A 5220 bytes
SHA-256: 9340c5aad969e79492a11c52c6b18876ffe51eb34c1f008820cc36d04300068b
font_01_sfnt_off0000eee8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEE8 10364 bytes
SHA-256: 2ab4ab6547ba70b30f7fbbbcdd1c3e4118d02bc4cfc74ac4201cdda722bf504e