Malicious PDF — malware analysis report

Static analysis result for SHA-256 679ac09301a30774…

MALICIOUS

PDF

74.0 KB Created: 2021-03-23 13:24:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2bb405590541adea65f80d12d4f31ede SHA-1: d21c7b2af76d0e3697098f78f8e96960da83481f SHA-256: 679ac09301a307749122e76673b56ec2964d46905fe55ec4ffa5db7304eae8cf
96 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with a primary one pointing to a phishing site. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of embedded URLs and the nature of the detection suggest it's likely a phishing lure or a downloader for further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://bologen.ru/wix?keyword=ocd+support+groups+mn
    • http://dewexipe.22web.org/jumugopivewixegukosolux.pdf
    • https://cdn-cms.f-static.net/uploads/4451561/normal_5fd1b6e0008e6.pdf
    • http://biomaniix.website/can_a_protest_be_peacefulcyywy.pdf
    • http://leninuludobodu.mygamesonline.org/category_theory_awodey.pdf
    • http://sberetransfer.online/bus_games_free_full_versionwkfy9.pdf
    • https://static.s123-cdn-static.com/uploads/4466146/normal_5fdf3a99cc7ac.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://bopisumeku.atwebpages.com/carel_ir33_manual_parameters.pdf
    • https://uploads.strikinglycdn.com/files/7612a54d-a81f-45a1-b7eb-95afe783f084/the_influencing_machine_summary.pdf
    • https://uploads.strikinglycdn.com/files/5019d8f7-8962-49d5-86fb-57579f579bea/35852063363.pdf
    • http://gifojakuwijipiv.rf.gd/xokilo.pdf
    • https://uploads.strikinglycdn.com/files/0ec06967-15f8-4516-b786-b3c57272b1fe/16716588531.pdf
    • https://uploads.strikinglycdn.com/files/fd0de904-4c21-40dd-9fab-367ba1d30fac/41258731992.pdf
    • https://uploads.strikinglycdn.com/files/cbb1ed46-af69-455f-87e0-b8c36e1294af/49322449950.pdf
    • https://uploads.strikinglycdn.com/files/52aff138-cda9-4bf2-b69f-1799cf291339/92456623779.pdf
    • http://bolesumedinix.rf.gd/18256491915.pdf
    • https://uploads.strikinglycdn.com/files/5049e101-4f66-4f75-a717-8c6a991cc3ea/how_to_connect_xfinity_dvr.pdf
    • https://uploads.strikinglycdn.com/files/fce8ef57-4334-4393-8bf4-7c2a9b2a77ed/what_does_annabel_lee_poem_mean.pdf
    • http://pusapovewazigu.onlinewebshop.net/51883241548.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://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e28e.bin
524ff28f21ae6efb54f221ab53e144ce4d8567a61d5cd2214108fa135c9236ee
pdf-font-stream PDF embedded font (sfnt) at offset 0xE28E 5176 bytes
font_01_sfnt_off0000f413.bin
0d4a76367193e3687d768960cb7c7a21b7e97b7eaf60eda923e1c93a1152e41a
pdf-font-stream PDF embedded font (sfnt) at offset 0xF413 11124 bytes