Malicious PDF — malware analysis report

Static analysis result for SHA-256 b70217054ed3c3dd…

MALICIOUS

PDF

68.8 KB Created: 2021-03-13 14:42:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 1dba60580c4f2d740de35d467eeb188e SHA-1: 2135d99851bb54419dfd699db62769557c0c4c5f SHA-256: b70217054ed3c3dd77826884f1ddccd91f220080e67e584b8e5ba307d6947683
126 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://leonvi.ru/strik?utm_term=rca+galileo+pro+11.5+digitizer+replacement PDF link annotation
    • http://my-favshopd.online/muxonodadid4a514.pdfIn PDF document text
    • http://winoraama.fun/napuvfg6lb.pdfIn PDF document text
    • https://musaseruvadix.weebly.com/uploads/1/3/4/5/134581888/fotemebek_pajiribixofoluk_pajogifavufej.pdfIn PDF document text
    • https://cdn.sqhk.co/tikalijit/gii2SbZ/one_man_s_sky_xbox.pdfIn PDF document text
    • http://lnstagramsupportlives.com/widazedifivavurezezeruxnket.pdfIn PDF document text
    • https://cdn.sqhk.co/vozeseseber/iahceIf/roku_ultra_4k_manual.pdfIn PDF document text
    • https://vufuredupe.weebly.com/uploads/1/3/0/7/130776381/xesakazunofep-wiximalerowan-faguj.pdfIn PDF document text
    • https://baputopozim.weebly.com/uploads/1/3/5/3/135336161/6546121.pdfIn PDF document text
    • https://cdn.sqhk.co/temisexezoda/ichjjfg/fedemumakejub.pdfIn PDF document text
    • http://dodunagosukew.iblogger.org/2352893083.pdfIn PDF document text
    • https://rizedugo.weebly.com/uploads/1/3/1/4/131453818/piwumeme-nizixupuvi-kozekun.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/adf97ff2-f6eb-40aa-a6ef-315b0e01cd88/nitro_converter_free_download_for_windows_10_64_bit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f64fcea9-922c-4c0d-bd96-897749442acb/58274076409.pdfIn PDF document text
    • http://nakobebujem.epizy.com/8758051921.pdfIn PDF document text
    • http://jimulopipuxofom.rf.gd/givuneko.pdfIn PDF document text
    • http://dipuvomefig.epizy.com/sky_sports_tv_guide_sunday.pdfIn PDF document text
    • http://beturatigamoli.epizy.com/anniversary_greetings_images.pdfIn PDF document text
    • http://lepejojesel.rf.gd/kuwoja.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee06b253-5069-4719-b817-48c5659a5968/83391673660.pdfIn PDF document text
    • http://mikuwetixiwu.rf.gd/synonyms_worksheet_1st_grade.pdfIn PDF document text
    • http://mifijikamipupu.epizy.com/sample_behavioral_interview_questions_for_customer_service.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1fc234f5-f5a6-4e90-80f7-f84a01db233a/spelling_book_grade_5.pdfIn PDF document text
    • http://kamuwizedelas.rf.gd/microbiologia_veterinaria_libro.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_off0000ce4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE4D 5480 bytes
SHA-256: eaac5eb1bfdf2cf0f51fcd04c6e533ada006567820ab4fb4669e5c058e452d9d
font_01_sfnt_off0000e0fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0FC 10316 bytes
SHA-256: 793b28b958307f248a01b319c2495302fb6662a67eeda3eb1d42b3d5c2716175

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