Malicious PDF — malware analysis report

Static analysis result for SHA-256 020f33f142a06682…

MALICIOUS

PDF

79.6 KB Created: 2021-03-19 23:43:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cb6af88c27d8949f16255a06fce727df SHA-1: 21e50b53a3b0c2848df40244747a8bc6ec3eca10 SHA-256: 020f33f142a06682165c03d512d61287fa36a8de7b5c6a17bff6221143675c24
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The PDF contains a large number of external links, suggesting it functions as a link farm or a phishing lure. The primary malicious URL identified is 'https://maypoin.ru/award?keyword=nlt+bible+pdf+file'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/award?keyword=nlt+bible+pdf+file
    • https://wopurosifagup.weebly.com/uploads/1/3/5/3/135333772/1248743.pdf
    • https://jitebogegamoma.weebly.com/uploads/1/3/4/7/134761197/xevojiravukes.pdf
    • https://wonakusoxenim.weebly.com/uploads/1/3/5/3/135340368/028f9471.pdf
    • http://nebolitazezo.iblogger.org/joinville_brazil_weather_report.pdf
    • https://rerimewanuxo.weebly.com/uploads/1/3/6/0/136036548/5723219.pdf
    • http://tekozobobiwo.22web.org/xuxug.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/4c9105c3-2b1f-4ffa-9b46-758141332cda/fojorabudupixovif.pdf
    • http://fasokefukolu.epizy.com/business_development_manager_cv_template_free.pdf
    • https://uploads.strikinglycdn.com/files/933c0614-6c10-4635-952b-b35f54c99f87/speakeasy_tattoo_peekskill_prices.pdf
    • http://mudotadabamato.epizy.com/65345001366.pdf
    • https://e20d271a-53e3-41f9-9180-d6cd5f9fd148.filesusr.com/ugd/6cfc61_96a3dd92251941409ab238916c086a25.pdf?index=true
    • https://b304dada-1952-41b2-af44-d16a3232bb3f.filesusr.com/ugd/c19c34_eff1d6a0b793449f8b5c8b8de46a2fba.pdf?index=true
    • https://s3.amazonaws.com/lixisariwulo/wedufa.pdf
    • https://f7f2eb1f-4ce6-40bf-b337-6bcc2c9c1a95.filesusr.com/ugd/dc6899_fc16dfe83580413b87dd212b5e354a7d.pdf?index=true
    • https://6bb2b61b-82bf-473b-8365-63ddb02ddbdd.filesusr.com/ugd/d55797_ef5473b613b443a89fae5d4bed08e5e8.pdf?index=true
    • http://xapitolo.rf.gd/diferencia_entre_trastorno_disocial_y_antisocial.pdf
    • http://dalotidel.epizy.com/teoria_causalista_de_la_accion.pdf
    • http://tinipukax.epizy.com/26612402114.pdf
    • https://s3.amazonaws.com/kagedatabujo/gondang_batak_simalungun.pdf
    • http://wurupebolem.rf.gd/check_list_para_el_diagnstico_empresarial.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e353.bin
fe612b2f2ff1c4520787aa2233367d3a3461d8774d46d68fcf2d53c1f954a95f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE353 4660 bytes
font_01_sfnt_off0000f342.bin
d87fdfeb016b71aa89fd32c3b19f6e1ec9e9294406e3ba2855de9c22dda40827		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF342 11860 bytes
font_02_sfnt_off00011b69.bin
78f609b66055ffb564ec12ca33a11b2360e0971752bd890582ac31fe59b39242		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11B69 16368 bytes

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