Malicious PDF — malware analysis report

Static analysis result for SHA-256 01a696c2c90539a1…

MALICIOUS

PDF

152.8 KB Created: 2021-03-18 09:10:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 26a19afdad9fbde4b39c237b83299751 SHA-1: 9af1ee42edfba8e5de8b5b68216ae4674660982a SHA-256: 01a696c2c90539a14c3b39ded629ad3ebced795d5926fd0f68fe2b230a37c1ea
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 0.9995

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://nipisod.ru/strik?utm_term=plan+y+programa+de+estudios+2011+tercer+grado+sep PDF link annotation
    • http://jojujikipafoz.iblogger.org/4602675308.pdfIn PDF document text
    • http://yazansoft.com/bosch_ts3000_gravity_risekvhh3.pdfIn PDF document text
    • https://cdn.sqhk.co/xawodoze/hhON4gd/lagimitu.pdfIn PDF document text
    • http://xugixejale.22web.org/sovojidawewozomuk.pdfIn PDF document text
    • http://lenuvivureropi.scienceontheweb.net/47555179570.pdfIn PDF document text
    • http://olymp-trade.top/baloxugasujapekobustcvn.pdfIn PDF document text
    • https://cdn.sqhk.co/jenexovu/LOjjjhb/ates_ve_su_3_kitap_ozeti.pdfIn PDF document text
    • http://kevufeduwatawos.mypressonline.com/tamezegunabaxisisifuxela.pdfIn PDF document text
    • http://masito.space/fojoxavevigipugawamab43w6.pdfIn PDF document text
    • http://vagoneviwesum.66ghz.com/antenna_tv_app_free.pdfIn PDF document text
    • http://fedemofutig.22web.org/should_the_seasons_be_capitalized.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/416e7f05-0ea5-4d7f-b6b1-77e65c6df838/72457920096.pdfIn PDF document text
    • http://vivotes.rf.gd/molecular_and_cellular_biology_impact_factor_2005.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ff859cb-bf8e-4454-beeb-792dcd423553/life_application_study_bible_nlt_full_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42cbeb69-3cd5-4a43-af88-0088a489b40c/22582372666.pdfIn PDF document text
    • http://zikajubagunefef.rf.gd/apomixis_and_its_types.pdfIn PDF document text
    • http://fotopokidag.epizy.com/best_bollywood_movies_hd_site.pdfIn PDF document text
    • http://kubomefewofumim.atwebpages.com/jewigawemupokinulomif.pdfIn PDF document text
    • http://nidikofuwovi.rf.gd/52944064000.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3498f089-a4e3-4cb4-951b-858ac4e3eaa5/88567458866.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9fee00cf-6b2f-411c-817f-f666447a9959/how_to_program_universal_remote_to_firestick.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_off00021679.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21679 5820 bytes
SHA-256: 9d3aeaa3bb8c807a555fbc59429626392f3edd6f3e680a163d472792b503ca1c
font_01_sfnt_off00022a4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22A4A 12864 bytes
SHA-256: 322259e5cce60d92fa11648f3826f78eb67259107ea3983dee098982d9024c38

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