Malicious PDF — malware analysis report

Static analysis result for SHA-256 84c8136c13b348a6…

MALICIOUS

PDF

97.9 KB Created: 2021-03-30 15:07:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 9c948495d1c45cf8bbafbc80d7f457ce SHA-1: 709c892ba992ca061f01b3e45b2d6f1be503febf SHA-256: 84c8136c13b348a655700b63a8eee2fac3ed7e8a8c867adaf637fdcc8d6be2ac
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://kuzutuzo.ru/123?utm_term=freemake+video+converter+pro PDF link annotation
    • http://merokomazojewi.scienceontheweb.net/que_es_un_agente_de_ventas_y_sus_funciones.pdfIn PDF document text
    • http://basidugom.mygamesonline.org/11307724377.pdfIn PDF document text
    • http://itdomen.fun/get_free_wifi_anywhere_appvltih.pdfIn PDF document text
    • http://vukipika.iblogger.org/antivirus_android_mod_apk.pdfIn PDF document text
    • http://bomisedoxu.mywebcommunity.org/95666923003.pdfIn PDF document text
    • http://it50disconto.pro/79855980223n33vm.pdfIn PDF document text
    • http://giveaway2020.info/merchant_of_venice_summary_act_2byvyg.pdfIn PDF document text
    • http://islandlandscapesbb.com/what_are_the_basic_elements_of_poetry1j2gg.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
    • https://s3.amazonaws.com/bevekizadoxuj/record_retention_policy_template_canada.pdfIn PDF document text
    • http://nedizilunok.myartsonline.com/varorutapaki.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/powerpoint_smartart_templates_timeline.pdfIn PDF document text
    • http://mewabetowa.myartsonline.com/magisterium_5.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9241ba7d-8f6f-4acc-ad38-d4dd2dd8a424/jandy_ball_valve_handle.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dbc69e26-757a-49ab-bc49-640de55c12ba/44422032058.pdfIn PDF document text
    • http://livirava.atwebpages.com/85312468698.pdfIn PDF document text
    • https://s3.amazonaws.com/fidobakipivogit/15376878508.pdfIn PDF document text
    • https://s3.amazonaws.com/ladiwuzetawedi/94778453184.pdfIn PDF document text
    • http://lezevefujo.rf.gd/is_jedi_shadow_fun.pdfIn PDF document text
    • https://s3.amazonaws.com/xisefowu/kuvabetarobura.pdfIn PDF document text
    • http://wodowepakimeko.onlinewebshop.net/usb_wiring_diagram_micro.pdfIn PDF document text
    • http://nufufud.epizy.com/jovoloseposejuwepumesos.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_off000134f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x134F1 4876 bytes
SHA-256: 88d20722f7fbb3d85cc08870c9bb43bb20ff65d5956b8d9ab264a61c5bf6dd99
font_01_sfnt_off0001456e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1456E 11460 bytes
SHA-256: 7cc1294fdbe1ef0cd4d37bbfbe889ac6638a7f567c17c248992c2f93ff59ac62
font_02_sfnt_off00016c02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16C02 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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