Malicious PDF — malware analysis report

Static analysis result for SHA-256 f042776a67065ed9…

MALICIOUS

PDF

72.8 KB Created: 2021-03-01 22:37:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2615b972163821a18a07c69cb62f07ba SHA-1: 0af2f1585f43c210da07f7b3ed8e4cd6d01fe1e1 SHA-256: f042776a67065ed916e7781d71f56951c3c4885b014a982fa503eb64b66b1a3b
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=bubble+struggle+3+unblocked In PDF document text
    • https://garanokuwepo.weebly.com/uploads/1/3/0/8/130874617/5091194.pdfIn PDF document text
    • http://tuzimolij.22web.org/cabelas_dehydrator_beef_jerky.pdfIn PDF document text
    • https://cdn.sqhk.co/ramejolir/7ihgiDi/evolutionary_theory_psychology_examples.pdfIn PDF document text
    • https://gizivesokopupa.weebly.com/uploads/1/3/2/6/132696604/afe05751d5dabfc.pdfIn PDF document text
    • https://cdn.sqhk.co/xerejijasoma/icaSBog/science_9th_class_book_in_english_medium.pdfIn PDF document text
    • http://timinome.getenjoyment.net/raxosonopinewawas.pdfIn PDF document text
    • https://sakixuso.weebly.com/uploads/1/3/4/4/134488330/kizakujigeli.pdfIn PDF document text
    • https://cdn.sqhk.co/letinumi/gcmQzif/giwotegetawinovir.pdfIn PDF document text
    • https://cdn.sqhk.co/bitizulokiva/us83icH/wd_my_cloud_hard_drive_removal.pdfIn PDF document text
    • https://vonewujin.weebly.com/uploads/1/3/1/3/131380349/18f8e07e4b.pdfIn PDF document text
    • http://gadatoreneperil.mygamesonline.org/tedir.pdfIn PDF document text
    • https://gunagabivap.weebly.com/uploads/1/3/4/8/134863042/gimufazuvidulafexid.pdfIn PDF document text
    • https://zasoliwex.weebly.com/uploads/1/3/5/3/135318241/rifudobel.pdfIn PDF document text
    • http://wuwisometojone.66ghz.com/bacillus_coagulans_spore_formation.pdfIn PDF document text
    • https://cdn.sqhk.co/wazilisiko/Hjh6Ajh/tiwirixipazoz.pdfIn PDF document text
    • https://cdn.sqhk.co/luwonowuwig/Ric5NJW/free_movies_app_download_apk.pdfIn PDF document text
    • https://gebezemimubitup.weebly.com/uploads/1/3/1/0/131070169/kixejaxogo.pdfIn PDF document text
    • https://cdn.sqhk.co/fesoxuleri/YidBMjf/castles_of_burgundy_card_game_sleeves.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://zukagebogewivur.epizy.com/wemefari.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_off0000d2f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2F3 5148 bytes
SHA-256: d0c9054f1a2a54b30b731960716a243ae6aca0a16f423845f2d05230aac05084
font_01_sfnt_off0000e482.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE482 10356 bytes
SHA-256: 470b92fb6c1b84b838d469f8695aa1f16dde2a88b0670882491ac65d00e8e180
font_02_sfnt_off000107ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107FF 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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