Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeb069eb0829d8b0…

MALICIOUS

PDF

92.9 KB Created: 2021-03-01 14:41:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 016310ccd3144849bc332e5d565149ee SHA-1: 4f0209f52e134a808b4b793cf1b01436e93e34f4 SHA-256: eeb069eb0829d8b09f4299c6cb01b9b60135cf47ee29685bb047094fd564bd51
134 Risk Score

Malware Insights

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

This PDF document was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier indicating maliciousness. It functions as a link farm, directing users to various external URLs, one of which is a potential phishing or malware distribution URL. The presence of a 'download button' heuristic further suggests a lure to download a payload. Although no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with phishing or malware delivery campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=matematicas+financieras+hector+manuel+vidaurri+aguirre+pdf+5ta+edicion PDF link annotation
    • http://janorewaxeno.mygamesonline.org/51832632258.pdfIn PDF document text
    • http://secret-empire.ru/lelekesiserajumuxupisitez7gpeq.pdfIn PDF document text
    • https://sivabukejiwija.weebly.com/uploads/1/3/4/4/134459056/6f543aebb35.pdfIn PDF document text
    • https://lirupije.weebly.com/uploads/1/3/1/6/131606624/gebelasibibepaluwawi.pdfIn PDF document text
    • http://jekenufakewe.mypressonline.com/what_is_a_unanimous_consent_agreement_quizlet.pdfIn PDF document text
    • http://knitfqph.site/conflict_management_styles_are_defined_in_terms_of_theirg62m4.pdfIn PDF document text
    • http://yoga-italy.space/philips_respironics_remstar_auto_a-flex_settingsh9fri.pdfIn PDF document text
    • http://lajodibibodi.getenjoyment.net/change_answering_machine_message_vtech_dect_6.0.pdfIn PDF document text
    • https://fikoroviv.weebly.com/uploads/1/3/0/7/130740338/8031002.pdfIn PDF document text
    • http://majikok.mygamesonline.org/prueba_para_la_licencia_de_conducir_en_la_florida.pdfIn PDF document text
    • http://lalat.space/tuxiwegevajpccq0.pdfIn PDF document text
    • http://zoneeuro.pro/the_time_travelers_wife_trailereae3g.pdfIn PDF document text
    • http://jozinusad.iblogger.org/83197383615.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
    • http://xikimafelote.epizy.com/mega_root_words_greek.pdfIn PDF document text
    • http://rojepubaxogo.epizy.com/wizards_unite_magizoologist_skill_tree_guide.pdfIn PDF document text
    • http://fenulujexita.epizy.com/16258197339.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011c3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C3F 5640 bytes
SHA-256: a9e20f1657e7c7f06d653859108ca7b4a651aece826776543d1050adb11f9f5b
font_01_sfnt_off00012f4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F4D 12288 bytes
SHA-256: e75509ae2b892636c33ef9a7306e8d4b86e14e15c547f5c9e0f25d3997f12de7
font_02_sfnt_off0001578d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1578D 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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