Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9ecd5c01332df2e…

MALICIOUS

PDF

71.1 KB Created: 2021-02-28 05:32:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 66fa463dd7e0a5f183011e4cb10ef294 SHA-1: 7be0fda302250d83c916addf3acc786bf66eba63 SHA-256: e9ecd5c01332df2e104b5fb6e4d2b22ed39f188b5a1f44fc5cfd04b3e2af4804
166 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
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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://bologen.ru/aws?utm_term=alternative+to+letasoft+sound+booster PDF link annotation
    • http://borejukeluteva.mygamesonline.org/what_is_diverse_learning_materials.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385415/normal_5ff036379ea1f.pdfIn PDF document text
    • http://gakawisogafuga.mygamesonline.org/why_is_my_shark_vacuum_roller_brush_not_working.pdfIn PDF document text
    • http://jifebaze.iblogger.org/windows_server_2012_powershell_5.0.pdfIn PDF document text
    • https://cdn.sqhk.co/pufowuvikij/d1hf3ig/lisofetojabali.pdfIn PDF document text
    • http://ketaton.mywebcommunity.org/pge_planned_outage_notification.pdfIn macro / runtime command snippet
    • http://kixiwogazu.sportsontheweb.net/why_does_my_circular_saw_keep_stopping.pdfIn macro / runtime command snippet
    • https://cdn-cms.f-static.net/uploads/4465705/normal_6028ee6e21d9d.pdfIn PDF document text
    • http://alkostore.xyz/decision_tree_algorithm_example_cmoy03.pdfIn PDF document text
    • https://cdn.sqhk.co/dorodidur/vUjjgY8/offline_videos_for_toddlers.pdfIn PDF document text
    • https://cdn.sqhk.co/vovusupa/VgdFfsr/miroremerirodepu.pdfIn PDF document text
    • https://cdn.sqhk.co/bulelovuroga/4qhak48/retoxirokiwibipizinevel.pdfIn PDF document text
    • https://cdn.sqhk.co/bofagenined/gtwSrZf/spill_it_out_lyrics.pdfIn PDF document text
    • https://cdn.sqhk.co/zimuteraf/lSihJV6/82804296313.pdfIn PDF document text
    • https://cdn.sqhk.co/pufowuvikij/d1hf3ig/lIn macro / runtime command snippet
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jabodegodonirad.atwebpages.com/57598392012.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_off0000d94f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD94F 5092 bytes
SHA-256: 5549bcefd5b5251b9011868942d04e35fd64d5ac0088fe90f8256fce20859cee
font_01_sfnt_off0000eaaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAAF 10808 bytes
SHA-256: b9e1b9e819d877f5980e7e23fd612af75e7b7d1f281c7dc6058e06d025f6d001

Open this report in the interactive analyzer, or submit your own file for analysis.