SUSPICIOUS — f2a831e1e3f3a2f8696fb13f3c0c0d181889c729e9c8ba7555d4f8477cf60666

SUSPICIOUS — f2a831e1e3f3a2f8696fb13f3c0c0d181889c729e9c8ba7555d4f8477cf60666 is a zip sample analyzed by MalwareAnalyzer by Cyble with a suspicious verdict (42/100), attributed to the Mydoom family. 5 of 24 detection engines flagged it.

Identification

• SHA-256: f2a831e1e3f3a2f8696fb13f3c0c0d181889c729e9c8ba7555d4f8477cf60666
• SHA-1: 94c3a5e05444cc9c5a8c633ee523c884bab997dc
• MD5: b099e2171940e30a0af23eeb55aa9e18
• ssdeep: 384:tvxBbK26lj5Id8SpHx9jLhsznnVxA1WmP5w7GGCJlqqwMyN4fHdL:7v8IRRdsxq1DjJcqflV
• TLSH: T1212DE1D444603CAFC5B29A819C444A7CE1624FF150AA29CCDE1370651AFF5EFE2B5262
• Submitted as: f2a831e1e3f3a2f8696fb13f3c0c0d181889c729e9c8ba7555d4f8477cf60666
• File type: zip · Size: 29290 bytes
• Verdict: suspicious (42/100) · Family: Mydoom

Detections (5 of 24 engines)

• MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
• 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 suspicious score of 42/100 is the fusion of 3 weighted signals:

• Embedded executable payload carved at offset 194 - static signal, weight 0.40, confidence 0.70
• Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55
• Contacted 5 external host(s) at runtime - network signal, weight 0.12, confidence 0.55

Archive contents (1 executable)

This zip carries 1 extracted member, each analyzed as its own sample:

• readme.htm .pif - ebbf9b45ed59430a486d17d916cfb647e20eec494488622bcac94e47a098bfb9

Dynamic analysis (linux)

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

Runtime network

• ntp.ubuntu.com
• desktop-hsgcbep
• 250.255.255.239.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
• 252.0.0.224.in-addr.arpa
• 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
• ff02::1:3
• 224.0.0.252
• 10.240.0.1
• 10.240.0.255
• 169.254.255.255
• ff02::16
• ff02::1:ff12:3456
• ff02::1
• ff02::fb
• 224.0.0.251
• 20.165.94.63 US · San Antonio · AS8075 Microsoft Corporation
• 185.125.190.58
• 224.0.0.22

Dropped files

• tmp_tmp.gIIc4qa4VT - 6a37b1f793003be7ebb46f5f54c0c7e99ad72d98f3547499aa1a630ba886e153

Embedded IP addresses

• 20.165.94.63
• 172.172.255.216

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report