Malicious PDF — malware analysis report

Static analysis result for SHA-256 82cb7a9e93862c9a…

MALICIOUS

PDF

87.1 KB Created: 2021-05-10 07:59:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: cd33d36ec5993a6fb4126b8236bbc03a SHA-1: 564856a8f432b8fb164ee3bc4ce0d35f414d7b3a SHA-256: 82cb7a9e93862c9ae7d32d16c82deacd67d9acc5a9e21f5e62f397042b0c5a97
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://pelibifir.ru/strik?utm_term=los+beneficios+de+la+lactancia+materna+para+la+madre+y+el+ni%25C3%25B1o PDF link annotation
    • http://gachihyper.xyz/independent_jeep_service_near_me05ae5.pdfIn PDF document text
    • http://espaceclient-cmb.com/77450874339nqxze.pdfIn PDF document text
    • http://kersita.fun/yaar_nuri_ztrk_szleri_resimlifrgtd.pdfIn PDF document text
    • http://monoga.space/rixiganomuwubisoroxukawsu88d.pdfIn PDF document text
    • http://zzzmmmmejjj.space/luxokonilixok8sre.pdfIn PDF document text
    • http://prequester.online/jagatsinghpur_balikuda_weather_reportnhab1.pdfIn PDF document text
    • http://palitra-cveta.ru/wexarorowojasofibedawomijkhlm.pdfIn PDF document text
    • https://dobuxodujunov.weebly.com/uploads/1/3/2/7/132741154/e97894fb51d2.pdfIn PDF document text
    • https://raxagipob.weebly.com/uploads/1/3/4/8/134883443/2896201.pdfIn PDF document text
    • http://apparently-home.com/how_long_does_it_take_to_charge_studio_3_beatsr57fc.pdfIn PDF document text
    • https://jazelisis.weebly.com/uploads/1/3/4/8/134870131/rasebonosazirika.pdfIn PDF document text
    • http://flowerport.shop/oublier_un_sort_dofus15s1f.pdfIn PDF document text
    • https://xeziguga.weebly.com/uploads/1/3/5/3/135392729/numijajobibebe.pdfIn PDF document text
    • https://fosozenasavo.weebly.com/uploads/1/3/4/8/134889966/piboreduredaz_xojumijufabub.pdfIn PDF document text
    • https://xuxufagitagagi.weebly.com/uploads/1/3/0/7/130740521/sidun.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://e22e8d81-f41f-4d51-abb1-39b19d2d32bb.filesusr.com/ugd/96bf9d_782fc84e2b9b4f2f8e59232bcd5540ee.pdf?index=trueIn PDF document text
    • https://d9c73feb-c945-4d97-9d44-ff62a4b57c47.filesusr.com/ugd/12056e_21ce55d113bd45d59b0b3fc0d62f5fa9.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/warapagefasovi/wirojiwirubijaxed.pdfIn PDF document text
    • https://6fd4412c-3e6e-4f21-a9af-8137ffc6c0d9.filesusr.com/ugd/03469c_3740ea02b5fa4afbb8a0ae9ae0a454a1.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/popilo/2013_fitbit_flex_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/figidireki/descargar_solucionario_mecanica_vectorial_para_ingenieros_dinamica_9_edicion.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010438.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10438 5484 bytes
SHA-256: 1b8dafd0bb6184f39d83423e3e709897ad663bcd0e507147a2571c1fbbd7aff0
font_01_sfnt_off0001167f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1167F 12424 bytes
SHA-256: e30a0a916c27f9ace18ac54ca3b2eab1db8959ca3afd11a0745f7ec852ad2f1f
font_02_sfnt_off00013d7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13D7D 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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