Malicious PDF — malware analysis report

Static analysis result for SHA-256 2caf25359d2ef127…

MALICIOUS

PDF

75.7 KB Created: 2021-01-31 23:10:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: d6762b40a8c69c57ab2b871abe3ab668 SHA-1: c551cb46673d06f56623950adc4402b3b5ae4337 SHA-256: 2caf25359d2ef127422f1f3ee6a2a022897193db29df8654d3924586c92a11b8
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document body contains a deceptive title related to 'Super deluxe burger locations' and an embedded URI pointing to 'https://jottigo.ru/123?utm_term=super+deluxe+burger+locations', suggesting a phishing or malware distribution lure. Although no scripts were explicitly extracted, the PDF structure and embedded URI are strong indicators of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/123?utm_term=super+deluxe+burger+locations PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4454694/normal_6009ea9145803.pdfIn PDF document text
    • https://cdn.sqhk.co/jigavozef/mjaP7ig/duck_hunting_season_washington_state_2019.pdfIn PDF document text
    • http://ashotik.space/d_day_in_hd_history_channelmtz76.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467027/normal_5fd63a12aec58.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373517/normal_5fda49cdde8d5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423171/normal_6003e9d8cd311.pdfIn PDF document text
    • http://kutufirix.iblogger.org/anova_reporting_apa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370767/normal_60002e222dedf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375351/normal_5ff9ba3a7e1a2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414176/normal_6008dd81de336.pdfIn PDF document text
    • http://wowosuseje.22web.org/general_chemistry_quiz_questions_and_answers.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jeromipaxipuda.rf.gd/89395392856.pdfIn PDF document text
    • http://zoxokek.rf.gd/2015_bollywood_movies_songs_list.pdfIn PDF document text
    • http://nivomijerunaz.epizy.com/63586795938.pdfIn PDF document text
    • http://puligop.epizy.com/xozokixadelive.pdfIn PDF document text
    • http://pojetol.epizy.com/ratilavedo.pdfIn PDF document text
    • http://miwofalixi.rf.gd/google_form_theme_templates.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_off0000e838.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE838 5552 bytes
SHA-256: dd2adfbd546c3bcbfe37415299e9c2a149860a5ecf1f9beaedeb30cba5d1cde5
font_01_sfnt_off0000fb23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB23 11448 bytes
SHA-256: e6543354fb5ec367a10277f6f8b313293531296b4cdd8ba7e3bc77b544b56383

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