MALICIOUS — f8a4d057544bb0a57a47bb7cb315caa9c4ab59425b55113ed95600ef19b08d3f

MALICIOUS — f8a4d057544bb0a57a47bb7cb315caa9c4ab59425b55113ed95600ef19b08d3f is a zip sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Wacatac family. 6 of 51 detection engines flagged it.

Identification

• SHA-256: f8a4d057544bb0a57a47bb7cb315caa9c4ab59425b55113ed95600ef19b08d3f
• SHA-1: 0b9fad587be11e673388223b393368de9a7ab969
• MD5: 7f0c078079044b41781a8b3e25ed0fa7
• ssdeep: 384:XvxBbK26lj5Id8SpHx9jLhsznnVxA1WmP5w7GGCJlqqwMyNYK:Jv8IRRdsxq1DjJcqf1K
• TLSH: T1222DE1D801603C9FC1729A819C480A7CE1614FF150AD29CCDE23B4B55AFE5DFE2B1262
• Submitted as: f8a4d057544bb0a57a47bb7cb315caa9c4ab59425b55113ed95600ef19b08d3f
• File type: zip · Size: 29194 bytes
• Verdict: malicious (99/100) · Family: Wacatac

Detections (6 of 51 engines)

• MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
• ClamAV feed: SaneSecurity foxhole_generic: Sanesecurity.Foxhole.Zip_hidden.UNOFFICIAL
• Microsoft Defender: Trojan:Script/Wacatac.B!ml
• Emsisoft (Emergency Kit): Worm.Generic.24461
• Trellix Stinger (McAfee): W32/Mydoom.o.o@MM!zip
• Kaspersky (KVRT): Email-Worm.Win32.Mydoom.m

Why this verdict

The malicious score of 99/100 is the fusion of 8 weighted signals:

• ClamAV feed: SaneSecurity foxhole_generic flagged Sanesecurity.Foxhole.Zip_hidden.UNOFFICIAL (rule Sanesecurity.Foxhole.Zip_hidden.UNOFFICIAL) - engine signal, weight 0.90, confidence 0.95
• Microsoft Defender flagged Trojan:Script/Wacatac.B!ml (rule Trojan:Script/Wacatac.B!ml) - engine signal, weight 0.55, confidence 0.85
• Emsisoft (Emergency Kit) flagged Worm.Generic.24461 (rule Worm.Generic.24461) - engine signal, weight 0.55, confidence 0.85
• Trellix Stinger (McAfee) flagged W32/Mydoom.o.o@MM!zip (rule W32/Mydoom.o.o@MM!zip) - engine signal, weight 0.55, confidence 0.85
• Embedded executable payload carved at offset 146 - static signal, weight 0.40, confidence 0.70
• Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55
• Archive contains executables: document.doc .scr - static signal, weight 0.25, confidence 0.50
• Contacted 6 external host(s) at runtime - network signal, weight 0.12, confidence 0.55

Dynamic analysis (linux)

864 behavior events · 0 ATT&CK techniques · 1 dropped files.

Runtime network

• 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• 252.0.0.224.in-addr.arpa
• b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• desktop-hsgcbep
• 250.255.255.239.in-addr.arpa
• ntp.ubuntu.com
• ff02::1:3
• 224.0.0.252
• 10.240.0.255
• 20.190.167.18
• ff02::fb
• 224.0.0.251
• 169.254.255.255
• 10.240.0.1
• 91.189.91.157
• ff02::2
• 185.125.190.58
• 185.125.190.57
• 185.125.190.56

Dropped files

• tmp_tmp.StLRcD0UHk - 52f83cad7fd8725e87186bff9aa08fb5647e501411e7555dd8cf97d217acf3d4

Embedded IP addresses

• 20.165.94.63

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report