MALICIOUS — tudus.pdf

MALICIOUS — tudus.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (97/100). 4 of 53 detection engines flagged it, exhibiting 1 ATT&CK technique.

Identification

• SHA-256: 8a5a710b0cd4b15c5eea39e51fc4f4cec929ac150ab422d1aa150db5847c66c8
• SHA-1: 753d7e2e31ce58ffae179eca21327160d964430d
• MD5: f28170470c02acf59a4c4722af3a16b0
• ssdeep: 1536:Xl+YKrZesKfUrFKyt+MCCteQgthMCLsJDMDs5lmiYYMVqOC:V3WMffkKa3zeJthDsJwuFYYKG
• TLSH: T15B37E1F33057DC8E6E9A4F076EE6195CB64ACA4831358A305848766DC47CAFE3D10C61
• Submitted as: tudus.pdf
• File type: pdf · Size: 71302 bytes
• Verdict: malicious (97/100)

Detections (4 of 53 engines)

• MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
• ClamAV (daily): Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• Emsisoft (Emergency Kit): PDF.Spam.Heur.1
• Kaspersky (KVRT): HEUR:Hoax.PDF.Phish.gen

MITRE ATT&CK

• T1566.002

Why this verdict

The malicious score of 97/100 is the fusion of 6 weighted signals:

• ClamAV (daily) flagged Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 (rule Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0) - engine signal, weight 0.90, confidence 0.95
• Emsisoft (Emergency Kit) flagged PDF.Spam.Heur.1 (rule PDF.Spam.Heur.1) - engine signal, weight 0.55, confidence 0.85
• Embedded link rated suspicious by URL analysis: https://pitiwiju.weebly.com/uploads/1/3/4/6/134687602/1223178.pdf - network signal, weight 0.40, confidence 0.60
• Embedded network infrastructure: https://ggtraff.ru/wb?keyword=laboratory%20glassware%20pdf, https://cdn-cms.f-static.net/uploads/4385206/normal_5fa0089adf455.pdf, https://vetovevigu.weebly.com/uploads/1/3/4/4/134486276/034560739862c4.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://ggtraff.ru/wb?keyword=laboratory%20glassware%20pdf
• https://s3.amazonaws.com/xazarujokemus/86824986220.pdf
• https://s3.amazonaws.com/sizadagazagaj/avast_antivirus_for_mobile_phone.pdf
• https://cdn-cms.f-static.net/uploads/4385206/normal_5fa0089adf455.pdf
• https://vetovevigu.weebly.com/uploads/1/3/4/4/134486276/034560739862c4.pdf
• https://cdn-cms.f-static.net/uploads/4407818/normal_5fb4b84d78aa8.pdf
• https://pitiwiju.weebly.com/uploads/1/3/4/6/134687602/1223178.pdf
• https://s3.amazonaws.com/tiduro/tazibagikuzakasa.pdf
• https://s3.amazonaws.com/vonuxagupeduze/data_analysis_in_qualitative_research_sample.pdf
• https://s3.amazonaws.com/gupuso/nimogita.pdf
• https://cdn-cms.f-static.net/uploads/4382196/normal_5f8f1c3be029a.pdf
• https://winomumamo.weebly.com/uploads/1/3/1/0/131070375/salagarifug.pdf
• https://cdn-cms.f-static.net/uploads/4402724/normal_5fb000095b1f2.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

• ggtraff.ru
• s3.amazonaws.com
• cdn-cms.f-static.net
• vetovevigu.weebly.com
• pitiwiju.weebly.com
• winomumamo.weebly.com
• www.w3.org
• purl.org
• ns.adobe.com

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report