Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b3c5ce509657ac9…

MALICIOUS

PDF

79.4 KB Created: 2021-03-24 06:02:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 4cb91f88aea380603282767756dc04f7 SHA-1: cc67ea473218a688874e3177628ee0f15d717c78 SHA-256: 0b3c5ce509657ac9c0200ba6c4ee99352a9aeecbc14283fa1738370144b36553
136 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it's a phishing lure, specifically using an image to redirect users to an external URL. The embedded URL 'https://dugedepap.ru/strik?utm_term=john+deere+950m+for+sale' is the primary indicator of malicious intent. While no scripts were explicitly extracted, the PDF structure and the nature of the redirect suggest it's designed to lead the user to a malicious site, likely for phishing or to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://dugedepap.ru/strik?utm_term=john+deere+950m+for+sale PDF link annotation
    • https://cdn.sqhk.co/noneniwetav/ikedJAh/voxakofuvi.pdfIn PDF document text
    • http://zaluxujuso.iblogger.org/zazzle_guide_files.pdfIn PDF document text
    • http://zewudinino.22web.org/how_to_use_blender_video_editor_for_beginners.pdfIn PDF document text
    • https://cdn.sqhk.co/zimopiroxab/h1BsQja/83222636357.pdfIn PDF document text
    • http://fulusixavopowem.iblogger.org/alaris_se_pump_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/natefisaka/ichjieB/flow_free_bridges_sampler_9x9_level_15.pdfIn PDF document text
    • https://cdn.sqhk.co/xoxamomajil/hhjjjig/best_sale_on_pre_lit_christmas_trees.pdfIn PDF document text
    • http://xibawipo.22web.org/bad_guys_bugsy_malone_sheet_music_free.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/mozirolinitaje/wezejuxosidulam.pdfIn PDF document text
    • https://s3.amazonaws.com/latufenaw/bsc_online_admission_form_2019.pdfIn PDF document text
    • http://lopumupukerodu.epizy.com/bomawuxade.pdfIn PDF document text
    • http://sikejilewiz.epizy.com/2nd_grade_phonics_test.pdfIn PDF document text
    • http://rinexaxar.rf.gd/avast_free_antivirus_baixaki.pdfIn PDF document text
    • http://xowegitonazip.epizy.com/computer_hardware_and_networking_books_free_download_in_urdu.pdfIn PDF document text
    • http://zasaraba.epizy.com/225376195.pdfIn PDF document text
    • http://matefurixexa.epizy.com/temenafakovadetuwib.pdfIn PDF document text
    • https://s3.amazonaws.com/wuniku/77142271441.pdfIn PDF document text
    • http://pirafabitibabik.rf.gd/seviripipawix.pdfIn PDF document text
    • http://podoremekuzepo.rf.gd/geometrical_meaning_of_derivative.pdfIn PDF document text
    • http://nixelotiseze.epizy.com/wujegufatizu.pdfIn PDF document text
    • http://vimabamavarona.epizy.com/balance_sheet_reconciliation_template_xls.pdfIn PDF document text
    • https://s3.amazonaws.com/zarusegibitumet/oracle_database_security_policy.pdfIn PDF document text
    • http://naxisimi.epizy.com/6916523758.pdfIn PDF document text
    • https://s3.amazonaws.com/wupuxus/75991387039.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_off0000ea39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA39 5216 bytes
SHA-256: 8ad7e7394cff058af93d4a6e2be3969b0cafd8c695abb4d7462c90722fe57f80
font_01_sfnt_off0000fbb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBB8 11212 bytes
SHA-256: 500d7236e8af6a1f7a0699617e2fc2d2e7470b64f676394fdf7805373c8fa1c7
font_02_sfnt_off00012214.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12214 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333