MALICIOUS — 56d80dcb10c05adce8b8ad8c051defe733737372c9dbc3ac6b4fd369bb8dd63a

MALICIOUS — 56d80dcb10c05adce8b8ad8c051defe733737372c9dbc3ac6b4fd369bb8dd63a is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (92/100), attributed to the Agentb family. 3 of 30 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: 56d80dcb10c05adce8b8ad8c051defe733737372c9dbc3ac6b4fd369bb8dd63a
• SHA-1: ca3ec90346f9f051dbcf95cb514846cd2e7d95d2
• MD5: 9bf109725fcbc08acce42c08325f3496
• imphash: 802dcac7aab948c19738ba3df9f356d9
• ssdeep: 3072:Ur7r4rMrUr4rZr4r/rUr4rZr4rMrUr4rZr4rerUr4rZr4rMrUr4rZr4rYrUr4rZ:
• TLSH: T1C165A66705A19D9BF617D6FB9480DF0D28F2E4F899B701D81D82DC0DA67CC5328A920E
• Submitted as: 56d80dcb10c05adce8b8ad8c051defe733737372c9dbc3ac6b4fd369bb8dd63a
• File type: pe · Size: 6111232 bytes
• Verdict: malicious (92/100) · Family: Agentb

Detections (3 of 30 engines)

• Microsoft Defender: Trojan:Win32/Zexa.WE!MTB
• Emsisoft (Emergency Kit): Trojan.Agent.EYLR
• Kaspersky (KVRT): Trojan.Win32.Agentb.kntn

MITRE ATT&CK

• T1112
• T1105

Why this verdict

The malicious score of 92/100 is the fusion of 7 weighted signals:

• Microsoft Defender flagged Trojan:Win32/Zexa.WE!MTB (rule Trojan:Win32/Zexa.WE!MTB) - engine signal, weight 0.55, confidence 0.85
• Emsisoft (Emergency Kit) flagged Trojan.Agent.EYLR (rule Trojan.Agent.EYLR) - engine signal, weight 0.55, confidence 0.85
• Kaspersky (KVRT) flagged Trojan.Win32.Agentb.kntn (rule Trojan.Win32.Agentb.kntn) - engine signal, weight 0.55, confidence 0.85
• Contacted 28 external host(s) and 16 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
• Dropped 1 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
• Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
• Memory forensics: 3 finding(s) elsewhere in the guest, not attributed to this sample, e.g. RWX/private injected region in SppExtComObj.E (pid 5948) (rule windows.malfind.Malfind) - memory signal, weight 0.05, confidence 0.30

Dynamic analysis (windows)

21483 behavior events · 1 ATT&CK techniques · 1 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• time.windows.com
• 76.0.240.10.in-addr.arpa.
• 1.0.240.10.in-addr.arpa.
• 188.114.148.52.in-addr.arpa.
• 26.73.42.20.in-addr.arpa.
• tas02.sls.update.microsoft.com
• v10.events.data.microsoft.com
• 109.223.150.4.in-addr.arpa.
• d.1.d.1.c.4.2.1.4.9.5.2.6.e.8.b.0.0.0.0.0.0.0.0.0.0.0.0.0.8.e.f.ip6.arpa.
• 144.95.233.135.in-addr.arpa.
• 251.0.0.224.in-addr.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.
• 170.253.116.51.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.
• 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.
• 252.0.0.224.in-addr.arpa.

Dropped files

• C:\Users\analyst\AppData\Local\Temp\BUBZNPYCNN.exe - 8f8cf52eb18e6feedc7643328ac9a76b5f8dd2552178e449dc31099824d8fcd2

Embedded URLs

• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl

Embedded domains

• x1.c.lencr.org
• x2.c.lencr.org
• ye.c.lencr.org
• yr.c.lencr.org
• ..localmachine

Embedded IP addresses

• 48.211.4.16
• 20.42.73.26
• 135.233.95.144
• 4.150.223.109
• 51.116.253.170
• 52.148.114.188
• 52.123.252.216
• 92.223.78.30
• 20.42.179.204
• 52.110.12.18
• 162.159.142.9
• 72.145.35.97
• 4.150.223.107
• 85.210.193.152
• 20.42.73.30
• 52.123.252.234
• 57.155.101.212
• 4.150.223.115
• 203.26.79.13
• 57.154.63.210
• 72.145.35.110
• 52.123.252.244
• 74.178.76.44
• 13.69.239.69
• 52.123.252.248

File paths

• C:\Users\

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report