Malicious PDF — malware analysis report

Static analysis result for SHA-256 acbed2e635e72a4f…

MALICIOUS

PDF

69.6 KB Created: 2021-03-18 06:25:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 1207b3cc5a36686acb256a2049ae05bd SHA-1: 4141d954ab0f32c09b874859eed40723025f5783 SHA-256: acbed2e635e72a4fd620bb4551d91560e42d220ae550efb4e6fcaac05042b516
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that mimics a search engine result for a common query, likely intended to trick the user into clicking it. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. No scripts were extracted, but the presence of external URIs and the overall detection suggest a phishing or credential harvesting attempt.

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://golowaki.ru/strik?utm_term=why+my+dryer+not+heating+up PDF link annotation
    • http://zeropium.com/kipezoturabalapofupegutgeeet.pdfIn PDF document text
    • https://cdn.sqhk.co/texivewa/hfVghjh/kivak.pdfIn PDF document text
    • https://xidatajabo.weebly.com/uploads/1/3/4/3/134375349/c647b563109f22.pdfIn PDF document text
    • https://cdn.sqhk.co/remezebona/gjYasia/dixoxelizefexosakuvo.pdfIn PDF document text
    • http://instup.xyz/natchitoches_weather_saturdaymhryf.pdfIn PDF document text
    • https://temisufe.weebly.com/uploads/1/3/5/3/135384001/wefipeluvaf.pdfIn PDF document text
    • https://katidifivova.weebly.com/uploads/1/3/4/7/134715674/robakoge-zakota-nutejilewojezo-xigibawapesa.pdfIn PDF document text
    • http://securityverifiedservices.com/35847910325l67d9.pdfIn PDF document text
    • http://rakojegad.22web.org/mizozexifagozagobel.pdfIn PDF document text
    • https://cdn.sqhk.co/pixazizaze/bgdiigj/83067182036.pdfIn PDF document text
    • http://tavegumata.sportsontheweb.net/difotunajakosokujogadi.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://s3.amazonaws.com/timituvupame/87549402509.pdfIn PDF document text
    • https://s3.amazonaws.com/midipes/jojozav.pdfIn PDF document text
    • https://s3.amazonaws.com/belapawerezuju/bete_noire_crossword_answer.pdfIn PDF document text
    • http://vosujepagukag.epizy.com/whatsapp_dark_mode.pdfIn PDF document text
    • http://bidejepeko.onlinewebshop.net/bibasijejojeduwejunofana.pdfIn PDF document text
    • http://wenulusevikofa.myartsonline.com/adiponectina_funcion.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagoba/dafenitilaponazijitox.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_off0000c7ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7AC 5160 bytes
SHA-256: 1b873af9a2716117b2869eefdb9af1eb915ddff5c64b9269ba05273f979a139e
font_01_sfnt_off0000d919.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD919 10120 bytes
SHA-256: 91c7f5c7bea8d610d1af52e4d8d9efd8adec810411de806e7d4ef91cfb56a10d
font_02_sfnt_off0000fb5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB5F 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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