Malicious PDF — malware analysis report

Static analysis result for SHA-256 e95e0573294c2b98…

MALICIOUS

PDF

205.3 KB Created: 2021-09-08 18:11:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: b0e9ec4220dcbd2e8aa794052fddd76a SHA-1: e844611381cb2b6182a35aac0a401370ca7e2016 SHA-256: e95e0573294c2b985045dc08e3280a676bfcd954f1133f550bd433fc97653251
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains embedded URLs that likely lead to phishing content. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it is designed to redirect users to malicious sites, aligning with spearphishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9570

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 http://tipsclubcr.com/campannas/file/56359930073.pdf In PDF document text
    • https://mygenius.ru/admin/ckfinder/userfiles/files/vurarawajapadaluvalasapi.pdfIn PDF document text
    • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/d9b989fa2791461abfee1da73cddbb8b/67392172167.pdfIn PDF document text
    • http://15881588.com/ckupload/files/92136040864.pdfIn PDF document text
    • http://american-security-inc.com/assets/ckfinder/userfiles/files/38316120011.pdfIn PDF document text
    • http://ordineveterinarireggioemilia.it/userfiles/files/79649008367.pdfIn PDF document text
    • http://cdio.vn/uploads/userfiles/file/zasifezojomazivewugaz.pdfIn PDF document text
    • http://alltechsro.cz/files/23506485080.pdfIn PDF document text
    • http://lnv-cnc.gr/userfiles/file/43876915734.pdfIn PDF document text
    • http://mc-opony.pl/files/file/17298340288.pdfIn PDF document text
    • https://satbietthu.com/luutru/files/tapowenojiligifuzuz.pdfIn PDF document text
    • http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134037888011---11843826306.pdfIn PDF document text
    • http://technimexvn.com/images/ckeditor/files/46480774529.pdfIn PDF document text
    • http://dentish.ru/ckfinder/userfiles/files/10504948982.pdfIn PDF document text
    • http://zrdb-drogbud.pl/Upload/file/62317687758.pdfIn PDF document text
    • http://machinesupplier.cn/data/product/file/202197_44027_200.pdfIn PDF document text
    • http://mentaplywood.com/images_upload/files/tomixewemidazinax.pdfIn PDF document text
    • https://honkakuji.jp/honkakuji/images/ckfinder/files/dazegivux.pdfIn PDF document text
    • https://pataniforum.com/admin/jquery/ckfinder/userfiles/files/12945949045.pdfIn PDF document text
    • http://diskacme.dk/images/upload/file/gimokakagorirazuri.pdfIn PDF document text
    • https://butyfarm.mm520.net/userfiles/files/51765006507.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=%D8%AA%D8%AD%D9%85%D9%8A%D9%84+%D8%B3%D9%88%D8%B1%D8%A9+%D8%A7%D9%84%D8%A8%D9%82%D8%B1%D8%A9+%D9%85%D9%83%D8%AA%D9%88%D8%A8%D8%A9+%D9%83%D8%A7%D9%85%D9%84%D8%A9+%D8%A8%D8%AE%D8%B7+%D9%83%D8%A8%D9%8A%D8%B1+pdfPDF link annotation
    • 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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off0002f298.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F298 27504 bytes
SHA-256: c793c4a4a3b15808068799ee7aac7ea01544a422b51a1775da5ef979a60ae46c
font_00_sfnt_off000286ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x286AD 19540 bytes
SHA-256: 02064120f3fe9170335357c18c0ecb41ff1661b5d59f9379d5b2d1eed2e282af
font_01_sfnt_off0002a6f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A6F3 22644 bytes
SHA-256: ce94e1690f327810dfb26953d08466f7dac008af1d0d4271310ab48c866f37eb
font_02_sfnt_off0002deba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DEBA 9372 bytes
SHA-256: ab692011bb810b4091e5b6863c1468cc19624005727076e0e42723678ec61724

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