MALICIOUS — c9af4.pdf

MALICIOUS — c9af4.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (87/100). 2 of 50 detection engines flagged it, exhibiting 1 ATT&CK technique.

Identification

• SHA-256: 3a6b22a8ecbfbd7f96eaf079f8ebcac07bbf41e7fb63e56f39e291d095771cd3
• SHA-1: 6cb95600b8b674012f17a4483290449afdc1bc5b
• MD5: 1f96dc16de7a9fa0b6874f1f5c9f782f
• ssdeep: 1536:LGFu6bIjhntmYl8Sz/KpLYzKEb4O6pYkF9X:qFu6EHmYl8Sz2LKc9r
• TLSH: T17A35C0F3D197EE4C7E82AB03ADE90055644AC38D65369BB055CD7B7C80B81AD7E40A22
• Submitted as: c9af4.pdf
• File type: pdf · Size: 60537 bytes
• Verdict: malicious (87/100)

Detections (2 of 50 engines)

• MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
• Emsisoft (Emergency Kit): PDF.Spam.Heur.1

MITRE ATT&CK

• T1566.002

Why this verdict

The malicious score of 87/100 is the fusion of 5 weighted signals:

• Embedded link rated malicious by URL analysis: https://viwuwobigoku.weebly.com/uploads/1/3/1/3/131378942/8386043.pdf - network signal, weight 0.70, confidence 0.80
• Emsisoft (Emergency Kit) flagged PDF.Spam.Heur.1 (rule PDF.Spam.Heur.1) - engine signal, weight 0.55, confidence 0.85
• Embedded network infrastructure: https://cctraff.ru/wb?keyword=goulds%20j5%20jet%20pump%20manual, https://tadonajates.weebly.com/uploads/1/3/4/3/134319020/jawetonuf.pdf, https://uploads.strikinglycdn.com/files/78d031fb-f98f-4316-98fd-f09236f53ffc/15500460171.pdf - 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://cctraff.ru/wb?keyword=goulds%20j5%20jet%20pump%20manual
• https://tadonajates.weebly.com/uploads/1/3/4/3/134319020/jawetonuf.pdf
• https://uploads.strikinglycdn.com/files/78d031fb-f98f-4316-98fd-f09236f53ffc/15500460171.pdf
• https://s3.amazonaws.com/jiwisigetizoxif/physical_science_with_earth_science_chapter_5_review_answers.pdf
• https://viwuwobigoku.weebly.com/uploads/1/3/1/3/131378942/8386043.pdf
• https://s3.amazonaws.com/gafedupeba/lajazotijebo.pdf
• https://cdn-cms.f-static.net/uploads/4382613/normal_5f8b92f1d08b0.pdf
• https://s3.amazonaws.com/sikuva/24913422868.pdf
• https://s3.amazonaws.com/xanebavifamopez/calibration_certificate_format.pdf
• https://uploads.strikinglycdn.com/files/b477050f-df80-496d-990b-5a1a87960709/kusebo.pdf
• https://s3.amazonaws.com/jiwisi/operations_with_exponents_worksheet_answers.pdf
• https://cdn-cms.f-static.net/uploads/4387224/normal_5f9250a2b9fc9.pdf
• https://s3.amazonaws.com/nemafu/wemubajat.pdf
• https://uploads.strikinglycdn.com/files/b813e189-b402-4645-b5ff-f17021a07264/wevasadalemonawatu.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

• cctraff.ru
• tadonajates.weebly.com
• uploads.strikinglycdn.com
• s3.amazonaws.com
• viwuwobigoku.weebly.com
• cdn-cms.f-static.net
• www.w3.org
• purl.org
• ns.adobe.com

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