Malicious PDF — malware analysis report

Static analysis result for SHA-256 eac4491c48b14ca9…

MALICIOUS

PDF

70.7 KB Created: 2021-03-07 18:17:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 3ab99e57e8dd2c103f0895ec62dacc37 SHA-1: 1895fd1b4051d42c6e5050ba52422aee04220244 SHA-256: eac4491c48b14ca9578ed27f61739657681499867cf0c4b434081fc44aacb8ac
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 0.9998

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://lozipotod.ru/wix?keyword=tower+defense+hacked+unblocked PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4477638/normal_600a4c91628d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392867/normal_5fdaa99d40bcb.pdfIn PDF document text
    • http://milesnires.xyz/apc_full_form_in_sap98gi5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458625/normal_6022f67a180e4.pdfIn PDF document text
    • http://reactivascotia2020.com/dragon_block_c_recipes2757c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wewiro/lipuruburasulekan.pdfIn PDF document text
    • https://67258aaf-84c5-4a88-bfd2-1aa7ddb6c27a.filesusr.com/ugd/850f07_ba220c0242534af4a6293131a3dab743.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xuzed/soleus_air_70_pint_dehumidifier_not_working.pdfIn PDF document text
    • https://c580675e-8888-491d-8c80-3106eaac86fb.filesusr.com/ugd/c8a981_158e0e8b02bb4aee8c0425c76ed950e5.pdf?index=trueIn PDF document text
    • https://e4586023-485a-43f1-9451-2d404684c5b7.filesusr.com/ugd/95ff22_93044db04cc64a6c8b96dc2a891de175.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d742d43-7eca-4785-b6da-faee5a6a6829/aplicar_para_celular_gratis_del_gobierno.pdfIn PDF document text
    • https://91953a53-6f32-4f2a-9b2e-0f954541ff31.filesusr.com/ugd/dad90e_8ecb71b16c9e4d519af6ad9e993a114a.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3a11802-0d0b-4c74-855d-617b43d4eea9/zuwupuzamolutom.pdfIn PDF document text
    • https://s3.amazonaws.com/gekixadonuru/jenufawubetemorul.pdfIn PDF document text
    • https://4eff3ec4-d147-45d1-be73-876d9e1d0019.filesusr.com/ugd/efb3f0_5562adc392754205aee836aab1e70448.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/lixuduwonifa/buxosugizadubakadenuzuger.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a077ddfe-3043-42d0-9c6b-994c818db5c8/69084541772.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e5329f6-3bbb-4487-85e9-a1b731b639c5/55619199906.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

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d977.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD977 5352 bytes
SHA-256: 28f103347efe132e63cfca58183cd832596aceb27c891da3f2e5c35b42926074
font_01_sfnt_off0000ebb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBB9 9996 bytes
SHA-256: 6f4e1d2bd076f49083eb882e87914c845ba4be744077bd406f5d4cfec58dd74b

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