Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dc18ab96506eecf…

MALICIOUS

PDF

321.2 KB Created: 2021-05-27 03:21:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 1105a49283dde4c81d89376f252d431d SHA-1: 2bdd3080b0fd14dad17af52e68cecd840ae5f699 SHA-256: 2dc18ab96506eecf3ece6a09ebc0a6cb8d860b24242c7dd403f387fd9dd919ca
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URL that mimics a search query, likely intended to trick the user into visiting a malicious site. No scripts were extracted, but the presence of an external URI and the phishing detection strongly suggest a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9922

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://midufefew.ru/strik?utm_term=is+walmart+good+for+america+video+questions PDF link annotation
    • https://fumunavizagoz.weebly.com/uploads/1/3/4/2/134235019/268b5bf36420.pdfIn PDF document text
    • https://buxodofuluni.weebly.com/uploads/1/3/4/8/134875319/41b74ae74.pdfIn PDF document text
    • https://mopomavimixefor.weebly.com/uploads/1/3/1/1/131164117/aa5308d0ec4ffd6.pdfIn PDF document text
    • https://limiretila.weebly.com/uploads/1/3/4/4/134465375/nofobimijafa-fubokopogepaxol.pdfIn PDF document text
    • https://wobajaxeme.weebly.com/uploads/1/3/4/3/134350369/1927762.pdfIn PDF document text
    • https://nobigifawu.weebly.com/uploads/1/3/4/3/134310244/684a21.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/b200be78-c923-433d-a540-291bad441216/polaris_office_locations.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a26d088c-9b21-420a-8c25-9f8c55b169a7/wekarimuvasuxuxiwumapekip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/90d7a162-66e9-4246-81ad-b0cd65315f2e/74969038127.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/61a2623e-85b6-4078-b11f-4fbf93c17c13/pulatejoj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d899ca65-4441-472f-8141-d01d6c6163d8/14433548777.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4090971-816c-4bd0-8089-a05195a74f79/lukuzelijonemikuzakezag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4fecacf5-1470-427e-ac9e-331b3cdcf851/nuxuvisedemokuzu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f85215b-ef7a-438b-b510-596e9ba37f49/5234414402.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa9d48d9-a98f-4f07-849b-cc6501e53b1f/2012_john_deere_x304_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b6c860a-26c4-43a7-9199-ee02f9d612fb/3799413594.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/946f069f-5da1-42df-ae23-77ff37a26b20/is_the_4moms_high_chair_worth_it.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06f6ff21-e163-496e-9d46-e1364e5e00ab/54811989143.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fdb90f17-0e29-42d9-a8ba-bd4300563baa/91464239881.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eecf98ff-4bc4-4d43-ac1b-69f906922155/gegilusanaza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97ef61f8-27d5-48d1-887c-dd354e06db3b/are_there_buffalo_in_north_america.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_off0004b838.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B838 5556 bytes
SHA-256: acb057159ebebdaea574bddff574df405bc1e339fbeee41186f507d97cc598a0
font_01_sfnt_off0004cb16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CB16 13220 bytes
SHA-256: 5ef169ee27386a318b83dd219c5bc655431b4b9766bf7e7b88a0fc14c48b69fa

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