Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fd2fec1b1b3bdaa…

MALICIOUS

PDF

68.9 KB Created: 2021-03-10 09:57:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 84433bbbe169fe3593999cfa6cb77ffa SHA-1: cbafe9b78f9f1a2a5af310284b333e3ab04733cf SHA-256: 2fd2fec1b1b3bdaab938163c416aa4eb9553e616be051a0a3e00666a11b12f05
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://golowaki.ru/award?keyword=lord+of+the+flies+chapter+7+questions+pdf PDF link annotation
    • http://kebenoda.scienceontheweb.net/arduino_tutorials_point.pdfIn PDF document text
    • http://wunupewoxe.iblogger.org/45950676268.pdfIn PDF document text
    • http://zegererevez.medianewsonline.com/tagugugulobakajopidigavap.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393508/normal_6034bf7eec9e0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447465/normal_60480d45b9968.pdfIn PDF document text
    • http://nefupanono.mygamesonline.org/gebopu.pdfIn PDF document text
    • http://sijubuwejipamun.mywebcommunity.org/55867816829.pdfIn PDF document text
    • http://nujagexurej.medianewsonline.com/doluvidibojako.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417208/normal_5ff36ba646b70.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475719/normal_5fef85322e357.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://71e5fc8e-cc9a-4633-96c3-2c70acd464d0.filesusr.com/ugd/f08e01_9fd20f7246b94693baa8d61e8033b721.pdf?index=trueIn PDF document text
    • https://bf130ee1-1463-4c69-9604-1b23772ced92.filesusr.com/ugd/b4609a_0f3fcb98edb54cbf8e0faa01030fb7ba.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/4769ce3c-e4e2-4119-ab8a-5d570ff8d493/naxisonidebozeji.pdfIn PDF document text
    • https://e4034479-4ead-418b-af8c-5be8dc72bdbe.filesusr.com/ugd/1e8759_5261f328f8d34017a884fa46be012e11.pdf?index=trueIn PDF document text
    • http://sinusudixuxuwad.atwebpages.com/powershell_version_5.1_windows_server_2008_r2.pdfIn PDF document text
    • http://ladisopezaxak.epizy.com/54252196399.pdfIn PDF document text
    • http://dezinolabebosod.atwebpages.com/latila.pdfIn macro / runtime command snippet
    • https://uploads.strikinglycdn.com/files/b211b6f5-cf16-4d2b-99b4-1db05c8ee35a/claire_breakfast_club_character_analysis.pdfIn PDF document text
    • https://3a0d5408-2ea1-4258-8d29-5d96341cad2c.filesusr.com/ugd/79cb75_4dfec0c151754506829e5ec203fb2923.pdf?index=trueIn PDF document text
    • http://tiredosutozol.atwebpages.com/ledaxibuwepajezilaporoza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/811653f4-d78c-4c22-87eb-c8699e56232a/riello_oil_burner_service_tools.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_off0000d2d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2D5 5388 bytes
SHA-256: 8f0f1aa06b06be5335021815fb5e5ece22b75e2df69fdb1f4dbea168e8d0af38
font_01_sfnt_off0000e531.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE531 9652 bytes
SHA-256: f6f950b47b06f547523428baab41d5995d9bcf93ef6cbcca26cc91738c326ba9

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