MALICIOUS — 4cf28d_28f7f4ad1cab452bac6539b0b985b7f3.pdf

MALICIOUS — 4cf28d_28f7f4ad1cab452bac6539b0b985b7f3.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (88/100). 3 of 53 detection engines flagged it.

Identification

• SHA-256: 29b0efb5ab7414387c9851a7b7ece6ce2592a4d40800b6e867f0face45b3c011
• SHA-1: d25374d0a1baa3551082cf79bb01052882bf7682
• MD5: fe9ea6af31ef3f88b705e6f207ed7b02
• ssdeep: 768:dgGzpDc3IxS3TOqceqoRMGm81ITKrpG3cFYykwr:eGFg3VqoRMGm8EKrpGVykwr
• TLSH: T1C1308EF36197DDC87A4B6B036AE611566246C74DB03357701988BB7CC4BC2BDAE40970
• Submitted as: 4cf28d_28f7f4ad1cab452bac6539b0b985b7f3.pdf
• File type: pdf · Size: 37218 bytes
• Verdict: malicious (88/100)

Detections (3 of 53 engines)

• MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
• Emsisoft (Emergency Kit): PDF.Spam.Heur.1
• Kaspersky (KVRT): HEUR:Trojan.Script.Generic

Why this verdict

The malicious score of 88/100 is the fusion of 6 weighted signals:

• Emsisoft (Emergency Kit) flagged PDF.Spam.Heur.1 (rule PDF.Spam.Heur.1) - engine signal, weight 0.55, confidence 0.85
• Kaspersky (KVRT) flagged HEUR:Trojan.Script.Generic (rule HEUR:Trojan.Script.Generic) - engine signal, weight 0.55, confidence 0.85
• MalwareAnalyser heuristics (entropy/packer) flagged high-entropy-blob (rule high-entropy-blob) - engine signal, weight 0.35, confidence 0.70
• Embedded network infrastructure: https://ttraff.ru/wix?keyword=ark+rotate+object+button, https://d565af32-312f-49c4-99cd-3b0714475e7e.filesusr.com/ugd/5ea691_ed32f1f1ead04199aee7a67a5a3eda97.pdf?index=true, https://818530b3-0430-4a33-9184-81ff08ee5c02.filesusr.com/ugd/c33cdb_71f6945c50b548e7b6f011ca998b9ce7.pdf?index=true - static signal, weight 0.35, confidence 0.60
• Document active content: uri-action - static signal, weight 0.30, confidence 0.60
• Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55

Dynamic analysis

No runtime behaviour was captured for this sample, so the analysis above is static only. That is a limit of this run rather than evidence the sample does nothing.

Embedded URLs

• https://ttraff.ru/wix?keyword=ark+rotate+object+button
• https://d565af32-312f-49c4-99cd-3b0714475e7e.filesusr.com/ugd/5ea691_ed32f1f1ead04199aee7a67a5a3eda97.pdf?index=true
• https://818530b3-0430-4a33-9184-81ff08ee5c02.filesusr.com/ugd/c33cdb_71f6945c50b548e7b6f011ca998b9ce7.pdf?index=true
• https://5cf93289-d4b6-459f-bbab-521da02c94a2.filesusr.com/ugd/665c20_126e6b1edaef4220b982e1a039b21c7f.pdf?index=true
• https://cdn.shopify.com/s/files/1/0430/2798/8634/files/31405786951.pdf
• http://files.noteworthyministries.org/uploads/1/3/1/4/131407890/xoxinijoz-vipimevapajawal-bafiji.pdf
• http://files.eastcoastnpl.org/uploads/1/3/0/7/130738955/315cd702dd.pdf
• https://cdn.shopify.com/s/files/1/0429/7333/1609/files/33859075810.pdf
• https://cdn.shopify.com/s/files/1/0437/6913/5262/files/whats_an_oval_face_shape.pdf
• https://cdn.shopify.com/s/files/1/0459/0102/1338/files/72900658610.pdf
• https://cdn.shopify.com/s/files/1/0434/0183/8744/files/commas_worksheets_first_grade.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/

Embedded domains

• ttraff.ru
• d565af32-312f-49c4-99cd-3b0714475e7e.filesusr.com
• 818530b3-0430-4a33-9184-81ff08ee5c02.filesusr.com
• 5cf93289-d4b6-459f-bbab-521da02c94a2.filesusr.com
• cdn.shopify.com
• files.noteworthyministries.org
• files.eastcoastnpl.org
• www.w3.org
• purl.org
• ns.adobe.com

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report