Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b673c7fb3f1cc14…

MALICIOUS

PDF

196.8 KB Created: 2021-04-02 18:23:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 526b7f248e7a867b9d0d3c940b3322e8 SHA-1: 90c928f342aa284e3832aea75edaf8263f5e8bfe SHA-256: 1b673c7fb3f1cc14628d26c58cdba2f1d2fa09bddb2232e7421b938f19aaef41
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 0.9985

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://gimoguvi.ru/strik?utm_term=comentario+biblico+adventista+mateo+13 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4416791/normal_605be86e0b46c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4505699/normal_604dd751d23c4.pdfIn PDF document text
    • https://jelebemurufipo.weebly.com/uploads/1/3/4/4/134442628/7774859.pdfIn PDF document text
    • https://xudufuzed.weebly.com/uploads/1/3/0/8/130815664/gibaxuxesegupik.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472495/normal_6041931b36bf0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450421/normal_5fc8750d3a30b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479236/normal_603e3a4ff1e63.pdfIn PDF document text
    • https://nizerekudoni.weebly.com/uploads/1/3/5/3/135383630/8650005.pdfIn PDF document text
    • https://volokosebu.weebly.com/uploads/1/3/4/8/134871595/1036002.pdfIn PDF document text
    • https://rakamirun.weebly.com/uploads/1/3/4/9/134904708/xekojaviwusijajor.pdfIn PDF document text
    • https://xamodeximafu.weebly.com/uploads/1/3/2/6/132681508/gupuperufemeg-xuzavovil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426073/normal_5fd8f6080a113.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483602/normal_606039b04ba27.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416302/normal_5febe6f0a5f4f.pdfIn PDF document text
    • https://javofosuzuvenew.weebly.com/uploads/1/3/4/5/134588543/7a865d459d43.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401714/normal_60668574e4ff9.pdfIn PDF document text
    • https://nojupifidupo.weebly.com/uploads/1/3/4/3/134361410/8932206.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501383/normal_6028232a1cfd2.pdfIn PDF document text
    • https://mepubigavij.weebly.com/uploads/1/3/4/5/134599646/4096010.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478927/normal_603e51e813458.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374685/normal_6011629e67943.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406777/normal_601672f3f420e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1cc5f47-38f2-45c7-89f8-d182c21179b0/major_events_in_us_history_after_ww2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5e38381-4b60-4e5a-9cdf-ddbb985e75a0/elkay_water_fountain_service_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a29853e-e5ab-4dd3-81f2-7e3ccf4ca281/physics_lab_ideas.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002c8a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C8A3 5408 bytes
SHA-256: 0d0c936e712008d28bab44c9064905e24c00c93136c4f10b345fe1b52ce24b10
font_01_sfnt_off0002daef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DAEF 12740 bytes
SHA-256: 30dfc90c8090e5c667393365aba06aae4ab74fcb8c2964007b3bd6d224fa7bc8

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