Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b3b93b2a9800616…

MALICIOUS

PDF

105.6 KB Created: 2021-04-01 16:04:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 436762f7bd532855a1bfc050957b10a3 SHA-1: d2f8538f5092571854c8ebc031fdb7518b337259 SHA-256: 1b3b93b2a980061694193ee22d09d52ead3bd42bbaa13c137d36c2fa58063125
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were directly extracted, the PDF structure and embedded URI are indicative of a common phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

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/award?keyword=space+odyssey+book+pdf
    • https://nijasofefovo.weebly.com/uploads/1/3/4/7/134719995/zovekosimis.pdf
    • http://pebifakonek.sportsontheweb.net/if_function_in_excel_tutorial.pdf
    • http://raponikidosal.getenjoyment.net/vikopufigujogininukawebiw.pdf
    • https://satemegozujig.weebly.com/uploads/1/3/4/4/134477909/3199849.pdf
    • http://libopadu.scienceontheweb.net/add_watermark_to_download.pdf
    • https://padixegidenu.weebly.com/uploads/1/3/1/1/131164435/f38a0128e.pdf
    • http://dowotezovemalo.mygamesonline.org/3318859236.pdf
    • http://dexuposi.sportsontheweb.net/journaux_algeriens_en_gratuit.pdf
    • https://fazipebafutemi.weebly.com/uploads/1/3/1/8/131857540/03927.pdf
    • https://nuxajitavira.weebly.com/uploads/1/3/1/8/131871558/3b740b.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://d6d3a1c5-32ce-46e9-ae92-c5b8d84d65d9.filesusr.com/ugd/a3b54b_029a39a2e2e944ada2c880ba2993917c.pdf?index=true
    • https://s3.amazonaws.com/xewamejixolefaj/21629349472.pdf
    • https://uploads.strikinglycdn.com/files/ec03e656-9858-4ec0-81dd-a256180e29a1/the_hour_of_prayer_that_changed_the_world.pdf
    • https://788ae96d-7a4f-4726-91a9-07bb742fb3e7.filesusr.com/ugd/97aff7_4e283e574f7549908f4d1e56e2bb4a55.pdf?index=true
    • https://s3.amazonaws.com/mujevubutukoxu/59040276660.pdf
    • https://uploads.strikinglycdn.com/files/bc8a22af-0827-4983-915a-8e88fb3df88e/73555531082.pdf
    • http://liraperuwuw.atwebpages.com/miwitibenatube.pdf
    • https://s3.amazonaws.com/tadevewuju/11662191084.pdf
    • https://s3.amazonaws.com/fojaxexino/class_matters_bell_hooks.pdf
    • https://uploads.strikinglycdn.com/files/e2fee145-4fa2-4cc8-a41b-fba31a6fd8ec/20310041660.pdf
    • https://49550882-97ce-44db-a38b-6e383bb81149.filesusr.com/ugd/062c90_d5c1356390d24a6d9edee6a206dee76f.pdf?index=true
    • https://uploads.strikinglycdn.com/files/97eac271-17ad-495e-9fc1-984fa3ff6676/lowawesu.pdf
    • https://4cd5eafb-d261-4666-a528-29b55b1676c1.filesusr.com/ugd/8dde66_c3f41bd4d0734e55991a7b30a0332e02.pdf?index=true
    • https://uploads.strikinglycdn.com/files/6b896186-fc26-4f71-81d0-600b03129369/lategobotiwonizosisisovo.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00017545.bin
2f1e1bc0c4a3f62ac5920a53e51c42396ed9d2b754aa545e9faae215b265181b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x17545 20512 bytes
font_00_sfnt_off00013a5a.bin
94a97e82e5168ed8a964aa19167b15441f949b8f3f1465ddd4acdaf9e1787572		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13A5A 5428 bytes
font_01_sfnt_off00014cee.bin
0734c8b89b7ab46c32cb48450f881ddb47f56a72e3a47371a7e559dd3a9d03fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14CEE 12672 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.