Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d2b68995d6f5022…

MALICIOUS

PDF

83.8 KB Created: 2021-05-28 01:43:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 51fe5b470f9300118389e037ee60088b SHA-1: df5a3814d2a87ebaaa2183035dcdae5edc2fdc58 SHA-256: 3d2b68995d6f5022f5218ca45fdf1530261e8ab1ee8019d6104a3e51cf8a5b68
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://vilenefex.ru/strik?utm_term=cosatto+zoomi+123+car+seat+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4497685/normal_5fd61e8008a2a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499285/normal_602af08348ef6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381546/normal_5fc70ab0227c8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388158/normal_5fe2d92057703.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452612/normal_60442ee2e3921.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417523/normal_603e4667b9103.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445321/normal_6062818089aa3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384640/normal_5fe2871b009a4.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://uploads.strikinglycdn.com/files/6862e815-7893-48c6-9b1d-daa69e089d47/pakotovutojejexut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d67c09c0-0db5-4969-879f-955aef4d96a9/widozasagosoxu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4af32e5d-e5c7-4587-bc99-2958995e31b2/97274374247.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a27cd14-3045-44b8-837f-8b85397f0709/finders_keepers_consignment_near_me.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eef2b872-0ed2-49b8-991f-703d8a1004f6/gibukazazako.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e150f672-9b53-4447-a936-644dc3b5282f/navy_marine_corps_awards_manual_secnavinst_1650.1_h.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/514b846c-cdba-4644-b184-e61a45021658/wizivaxowonuwusebap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/817e1fb5-e25d-4bdc-8159-0765132c2bc3/40599428125.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fbfbd675-d3c3-462f-a577-64b0ae0525ef/xanazaduregavipawivokesap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37010de4-354b-424e-b5df-af52ba712ea8/56273840194.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e363e06e-03b3-4ad3-ac68-1117509f3090/adobe_premiere_pro_cc_classroom_in_a_book_2018_release_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd575c51-1d61-4ef3-bb91-d16dab946a62/xilabevufomarebo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/842db149-18ea-4110-adf6-68c8f97d5e4a/17231354350.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17bb1bfd-b438-4885-bf36-d24fa5fff3b1/dirt_devil_power_max_rewind_pet_bagless_upright_vacuum.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_off0000fecc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFECC 5248 bytes
SHA-256: 9b7f71b740e0299c68332812c94ddab24597ce98cf228e868ca81cc1cbda9bfb
font_01_sfnt_off00011091.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11091 10284 bytes
SHA-256: fd94e4f673a67c0641a8cfc78867d4ac9121a5952f81726e9dfbf026234e54a4
font_02_sfnt_off000133a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x133A8 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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