MALICIOUS — 52df0d8c27c10120000d615586089c427ae636be9d17457eec7ba22a9ea214ef

MALICIOUS — 52df0d8c27c10120000d615586089c427ae636be9d17457eec7ba22a9ea214ef is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (92/100), attributed to the Agentb family. 3 of 56 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: 52df0d8c27c10120000d615586089c427ae636be9d17457eec7ba22a9ea214ef
• SHA-1: 6a8068ae9847f14dd78fff2a3c80bee6c213868b
• MD5: e4d73cb03a47e5377467be9f56c87291
• imphash: 802dcac7aab948c19738ba3df9f356d9
• ssdeep: 384:yQ3bXykJBqhz9QhtGSdYDTMS9XHSbOiQ3bXykJBqhz9QhtGSdYDTHS9XHSbO:ytrJ9Qhtn2hSOitrJ9Qhtn2ASO
• TLSH: T19E2FA66705A19D5BF617D6FB5480CF0D28F2E4F899B701D81E82DC0DA67CC5728A920E
• Submitted as: 52df0d8c27c10120000d615586089c427ae636be9d17457eec7ba22a9ea214ef
• File type: pe · Size: 32768 bytes
• Verdict: malicious (92/100) · Family: Agentb

Detections (3 of 56 engines)

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

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.knto (rule Trojan.Win32.Agentb.knto) - engine signal, weight 0.55, confidence 0.85
• Contacted 20 external host(s) and 12 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: 2 finding(s) elsewhere in the guest, not attributed to this sample, e.g. SSDT hook (rule windows.ssdt.SSDT) - memory signal, weight 0.05, confidence 0.30

Dynamic analysis (windows)

12012 behavior events · 1 ATT&CK techniques · 1 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• 76.0.240.10.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.
• 251.0.0.224.in-addr.arpa.
• 1.0.240.10.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.
• 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.
• v10.events.data.microsoft.com
• 167.142.190.20.in-addr.arpa.
• settings-win.data.microsoft.com
• 26.73.42.20.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.
• 40.85.84.40.in-addr.arpa.
• _ldap._tcp.dc._msdcs.WORKGROUP
• _VLMCS._TCP
• 224.104.155.57.in-addr.arpa.

Dropped files

• C:\Users\analyst\AppData\Local\Temp\JWMIISPPUQ.exe - 1f811c4bf735b49e48f5ffe39450e1686547f23a72eb49caa839117d259bd8c0

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
• _ldap._tcp.dc._msdcs.workgroup
• _vlmcs._tcp

Embedded IP addresses

• 40.84.85.40
• 4.150.223.110
• 20.184.175.12
• 57.155.104.224
• 4.150.223.103
• 48.211.4.16
• 52.123.129.14
• 20.42.73.26
• 40.84.97.4
• 4.150.223.115
• 72.145.35.97
• 52.148.114.188
• 72.153.5.130
• 20.42.179.192
• 4.247.188.233
• 52.110.12.33
• 51.132.193.104
• 13.69.116.107
• 52.178.17.234
• 4.247.188.224
• 20.52.64.200
• 135.234.160.244
• 172.172.255.218
• 172.172.255.217
• 85.210.193.152

File paths

• C:\Users\

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report