Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad06cbc1179e0d15…

MALICIOUS

PDF

83.6 KB Created: 2021-09-08 23:47:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 910710126a9746a55ae98052cb4cfd24 SHA-1: 4b4f7ef2cdf8d80f9ac6c2c5521714e13ec7e2ed SHA-256: ad06cbc1179e0d15bb6e72690aa60c73a8b4eb8f1bf492e28ab5d4fb37d47f1b
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, with a heuristic indicating it functions as a link farm on disposable hosting. The presence of urgency language suggests a phishing or scam attempt. While no scripts were directly extracted, the ML classifier strongly flagged this PDF as malicious, indicating it likely contains obfuscated malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://binarbaid.com/public_html/userfiles/file/dikukijixigubegawurade.pdf In PDF document text
    • http://photonart.nl/phpcmsys/file/57592410790.pdfIn PDF document text
    • http://modellszerviz.hu/userfiles/file/dajojolewaninuzele.pdfIn PDF document text
    • http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161391525b20ea---tefebanuxutubo.pdfIn PDF document text
    • http://laxycoffee.com/upload/files/8204898379.pdfIn PDF document text
    • http://tandartsindex.nl/images/uploads/wisuramurawewezawexuj.pdfIn PDF document text
    • https://sistemagestiondpr.com/userfiles/file/vomuxizozeferipezuma.pdfIn PDF document text
    • http://songpinhao.com/userfiles/files/71463446882.pdfIn PDF document text
    • http://chipgene.com/image/files/20210903_120348.pdfIn PDF document text
    • https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/jhf3lni8p11apoommu85pto677/16444651409.pdfIn PDF document text
    • http://foto-recepty.sk/images/fotky/fujobufuwotidejaxekonuwom.pdfIn PDF document text
    • http://canissapiens.com/images/uploads/file/xofosupupezizaku.pdfIn PDF document text
    • https://www.ebenisterie-burette.com/ckfinder/userfiles/files/nofuwanuderamodi.pdfIn PDF document text
    • http://back2wood.de/userfiles/file/32750098069.pdfIn PDF document text
    • http://ladna.pl/user_images/file/togujobamowojam.pdfIn PDF document text
    • http://gongin.humenia.com/upload/userfiles/2021/09/files/210908031942.pdfIn PDF document text
    • http://myphamasia.net/upload/files/kusitubojaxakovox.pdfIn PDF document text
    • https://psihodesk.ro/ckfinder/userfiles/files/dowixa.pdfIn PDF document text
    • http://eventologia.com/userfiles/files/61519546360.pdfIn PDF document text
    • http://keacg.com/upload/files/25071492451.pdfIn PDF document text
    • http://www.radio-kum.si/data/files/tobegojububari.pdfIn PDF document text
    • https://ku4ysk-9lgp4y.com/contents/files/38551477576.pdfIn PDF document text
    • http://ibshop.gr/uploads/_uploads/files/sapumizifaloz.pdfIn PDF document text
    • https://trickapotisk.cz/webpagebuilder/ckfinder/userfiles/files/lasexulokadiwakigunizavad.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=how+to+put+2+pictures+in+ig+story+androidPDF link annotation
    • 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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e030.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE030 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f842.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF842 18124 bytes
SHA-256: 569037e486b101ee2bbff46dfa69c622f881228ee12c80c6cfd35fef66d85fa1
font_02_sfnt_off0001269a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1269A 11052 bytes
SHA-256: ef09e9602358a8ea8e7caf5f3161087c40537913709914d913e5846a1f3f299d

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