Malicious PDF — malware analysis report

Static analysis result for SHA-256 dde250e8d865a557…

MALICIOUS

PDF

72.7 KB Created: 2021-03-09 20:42:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 82e7c19a646e72251d41a8d07ebc605d SHA-1: b9298329937e85b260f9698c7057685b39939cec SHA-256: dde250e8d865a557be211e80c2773c288ba1bcff5b393bc98e5b63fa60fb3788
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, indicating a phishing attempt. It contains an embedded URL that directs users to a suspicious domain, likely to host further malicious content or phishing pages. The document body, though heavily obfuscated, appears to contain keywords related to the embedded URL, suggesting a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://ponafet.ru/123?utm_term=burgundy+formal+dress+long
    • http://taxokisekajetek.22web.org/7340421983.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://3d3b31fc-6152-41c7-b1d4-a4af3afcce63.filesusr.com/ugd/3f8d85_83ec0264eb754ef598cebbbf7b06471f.pdf?index=true
    • https://e0220c8c-c322-4c33-af83-7c5b0fe00b66.filesusr.com/ugd/a771bd_13f104f588c24eb1a9e9a50eff1bb30d.pdf?index=true
    • https://5e3b32e6-a537-4a58-a531-ef303a468713.filesusr.com/ugd/120874_9f41e4c55d5e4e5aa8df150bb1182de7.pdf?index=true
    • https://4b3b4da4-1145-40fd-8a04-0ac29766dab0.filesusr.com/ugd/6c6203_415c38fb9b254f4eb8914f6ac5109b06.pdf?index=true
    • http://rajifuxoral.epizy.com/61487896119.pdf
    • http://femasusatatovet.epizy.com/kick_the_buddy_game_apkpure.pdf
    • https://uploads.strikinglycdn.com/files/ee4a20ad-ca88-48ad-bad8-6001daed12e3/dijixewope.pdf
    • https://uploads.strikinglycdn.com/files/3bb220ee-dcd4-4984-9f35-4fb53692a266/tivekijebefeseloxezabun.pdf
    • http://pokezuturev.rf.gd/39556974396.pdf
    • https://b2d1eea7-aef5-47fc-962c-88b5513ecafc.filesusr.com/ugd/3a57bc_43c92ba1a029441ba4531727578a4962.pdf?index=true
    • https://uploads.strikinglycdn.com/files/71ea78fe-1775-4e14-bc6f-dc45a3a642c1/warcraft_2_units_paladin.pdf
    • http://zumoriko.epizy.com/bootstrap_image_gallery_template_w3schools.pdf
    • http://badivisixeg.epizy.com/59721580745.pdf
    • http://goxakimolo.epizy.com/latest_bollywood_mp4_movies_free_2018.pdf
    • https://uploads.strikinglycdn.com/files/11a8b82f-fecb-40ef-b844-3fb7c208ec25/telawigarabot.pdf
    • https://e8f98835-b194-42a5-b43f-fe2f29920dd6.filesusr.com/ugd/bf650e_9a3919a8842b4d75bb23f3220fc4c1e5.pdf?index=true
    • https://uploads.strikinglycdn.com/files/bf952bed-9cb5-4fa9-bc16-c070c7b2e0ff/52463413299.pdf
    • https://uploads.strikinglycdn.com/files/5d8f6a9f-d130-48d4-95b4-d635c1d43d9d/pupuzonasazuzopet.pdf
    • https://0e9c393c-9feb-4465-ae9d-4486bea7a644.filesusr.com/ugd/4b68be_18c82637ecf6445c82e0c5621068adcd.pdf?index=true
    • https://da9d63b4-fbfd-4f6f-88e7-06ac0d76355b.filesusr.com/ugd/ca300b_20031fd3b5eb452eaae2e57ac48d16e7.pdf?index=true
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d36c.bin
694eff7c34ee98317fbbcdd0ad9b14db804147273f11f5168953e026c0f4469d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD36C 5132 bytes
font_01_sfnt_off0000e4c9.bin
f5268ff12b86641793f7890e915cfe006799b431574136731d1a15e7e3a05854		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE4C9 10188 bytes
font_02_sfnt_off00010790.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10790 4324 bytes

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