Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e3380399c2276cc…

MALICIOUS

PDF

78.1 KB Created: 2021-06-01 16:57:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bc32d701b7562773b4819e53fc330e3c SHA-1: 38b51878a3cee7548aa642742f7277d2b57a79ad SHA-256: 1e3380399c2276ccf988fcea2db28511499a0700a8b30aa0bd8389ecdc943847
96 Risk Score

Malware Insights

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

The PDF file contains a lure related to Roblox groups, likely to trick users into clicking a malicious URL. The embedded URL, https://queure.ru/pbw?utm_term=how+do+you+find+a+roblox+group+with+no+owner, is the primary indicator of malicious intent. While no scripts were directly extracted, the PDF structure and the presence of external links suggest it's designed to lead the user to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://queure.ru/pbw?utm_term=how+do+you+find+a+roblox+group+with+no+owner
    • https://static.s123-cdn-static.com/uploads/4420775/normal_5ff7aa6856824.pdf
    • https://cdn-cms.f-static.net/uploads/4466154/normal_60504d7d97c1e.pdf
    • https://cdn-cms.f-static.net/uploads/4491926/normal_604ae14a74c30.pdf
    • https://static.s123-cdn-static-d.com/uploads/4489441/normal_60b537cfc3c69.pdf
    • https://cdn-cms.f-static.net/uploads/4487200/normal_6048fd3020113.pdf
    • https://cdn-cms.f-static.net/uploads/4371498/normal_604d8859f35a3.pdf
    • https://cdn-cms.f-static.net/uploads/4376120/normal_601b7d4e5e94e.pdf
    • https://cdn-cms.f-static.net/uploads/4369917/normal_6023e368e6338.pdf
    • https://cdn-cms.f-static.net/uploads/4367646/normal_60494d76e0835.pdf
    • https://cdn-cms.f-static.net/uploads/4403271/normal_60517d8a275ba.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/7d01667d-cc5e-4272-bc33-f8a60a051bf8/dovilatomujad.pdf
    • http://xuruzinijub.pbworks.com/f/duvatisunutedirigogina.pdf
    • http://vawaguzidatu.pbworks.com/f/gta_5_psp_download_highly_compressed.pdf
    • http://xojifot.pbworks.com/f/can_you_lose_money_in_the_tsp_g_fund.pdf
    • https://uploads.strikinglycdn.com/files/ddaaf4fd-7020-43bd-ba70-d07d2e8365c7/1997_nissan_sentra_repair_manual.pdf
    • https://uploads.strikinglycdn.com/files/149ca144-44dc-467f-9819-84dbfb614ea2/zegidanepozugo.pdf
    • https://uploads.strikinglycdn.com/files/9510d16a-b220-4287-b4c1-8a88d0656958/arithmetic_and_geometric_sequences_worksheet_answer_key_kuta_software.pdf
    • https://uploads.strikinglycdn.com/files/59c55b68-f43c-4623-b5fb-a980e6e3c0ad/sokololasoxebexe.pdf
    • http://kedetuwi.pbworks.com/f/zopigexebuwenusixilipomev.pdf
    • http://xuruzinijub.pbworks.com/f/marag.pdf
    • https://uploads.strikinglycdn.com/files/e91ec1b5-db31-409c-933b-f840571535d3/what_is_cvo_curriculum_vitaes.pdf
    • http://natizasex.pbworks.com/w/file/fetch/144411591/active_and_passive_voice_worksheets_for_class_6_cbse_with_answers.pdf
    • http://lakebimutep.pbworks.com/w/file/fetch/144418521/consider_the_lilies_of_the_field_piano_solo_sheet_music.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f1c8.bin
a448d51680094a188da1bf9300d2d5c29c75da7c4dbdb9a83f8e6b3faf84a5c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF1C8 5488 bytes
font_01_sfnt_off00010486.bin
888acedffa260023978122e2378e34c2585a1ea050018f0e89d4bd93046e021a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10486 10976 bytes

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