Malicious PDF — malware analysis report

Static analysis result for SHA-256 33658ba6d2349312…

MALICIOUS

PDF

210.5 KB Created: 2021-05-28 21:06:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 094b84d885d81be8c976f77c23c0e1ee SHA-1: 8b0d77a3095cfdce495d76e9418cf50ac493c2b5 SHA-256: 33658ba6d23493126e36e8e2ea2b3a031e83096e5cf9fa934c7059b51e4e4396
104 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses an urgency-based lure. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9661

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://dugedepap.ru/strik?utm_term=why+is+eminem+the+best+rapper+of+all+time PDF link annotation
    • https://supeneti.weebly.com/uploads/1/3/2/8/132815050/tudodegeda_kunipijetuf_pijupoxim_pumufugefefasol.pdfIn PDF document text
    • https://fugiweritukasuj.weebly.com/uploads/1/3/4/6/134682589/a8076c9ad4236.pdfIn PDF document text
    • https://xilizotuxepaxi.weebly.com/uploads/1/3/4/3/134309236/feac57.pdfIn PDF document text
    • https://rexekimat.weebly.com/uploads/1/3/4/0/134017736/d319219c239c8a.pdfIn PDF document text
    • https://kilekefaze.weebly.com/uploads/1/3/4/6/134631798/rosuke-xizupuxatidepik-vovuji.pdfIn PDF document text
    • https://bumopisizepe.weebly.com/uploads/1/3/4/6/134606815/jomixolad.pdfIn PDF document text
    • https://loneluripovulom.weebly.com/uploads/1/3/4/3/134364014/jobup.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460231/normal_60237de1ad3c8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445555/normal_6044fbfea6c18.pdfIn PDF document text
    • https://sokupime.weebly.com/uploads/1/3/3/9/133999930/5959951.pdfIn PDF document text
    • https://naluzamuro.weebly.com/uploads/1/3/4/5/134516405/libipa_gabebutifu_zezofoxixis.pdfIn PDF document text
    • https://tasufevijusenix.weebly.com/uploads/1/3/0/8/130814010/tugoboronixofiv_furezamavisex_bodafifara.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413007/normal_5ff75ef0a074f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480750/normal_5fe33beb5f9c6.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://uploads.strikinglycdn.com/files/d7cb9e10-4369-4c5c-b592-5c563258cd9f/49543601511.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eccdaaa5-5ce1-450e-94a0-91f8fa2d2ac7/anger_management_for_dummies_cheat_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/783e0f97-52b8-4f0c-a6e5-35f39d6a4b4e/82108088241.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6d8cc72-aef9-42b4-adb8-930c29f42fe0/10645296587.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/323bc9a5-ac12-4e11-a365-793bcabc74b0/38067162156.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/816148f7-574d-4acb-814c-a3eb61874317/next_stock_like_gamestop_reddit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8353db3-6a0c-4958-81ce-45a32607cd28/cuales_son_los_5_grupos_de_alimentos_en_ingles.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b9b6206-4206-408f-8c9f-9d6b0f4b1222/limage.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4cf32e87-1b85-467b-8ade-37a73cf356f7/buvonule.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c95011f-40c2-46fb-88f2-00fa9d506463/fantastic_mr_fox_ash_costume.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1e32a3f-34a5-4fe5-a1d8-63dd173e1552/define_visual_culture_in_art.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00025134.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x25134 54128 bytes
SHA-256: a8995bdc655eeefc075f27ef9b521966e2b98300363c80d6cded52f078a9ca39
font_01_sfnt_off0002ef9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EF9B 5184 bytes
SHA-256: bca5e31677f1e8e04a30cfbf97905f4de8e0c6d19c967352a899fbea3b2c4a21
font_02_sfnt_off00030113.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30113 13324 bytes
SHA-256: 104004e462de11b121e857ba28a66c63807926ea61ff7579e71224034adcc2bd
font_03_sfnt_off00032ce6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32CE6 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3