Analysis
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max time kernel
151s -
max time network
173s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
30-11-2022 09:24
Static task
static1
Behavioral task
behavioral1
Sample
62f23351a5d25faa99ed9a1b5758c285248a4a23.exe
Resource
win7-20221111-en
General
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Target
62f23351a5d25faa99ed9a1b5758c285248a4a23.exe
-
Size
348KB
-
MD5
2f360e6e56314a35bb273a21ae10f24c
-
SHA1
62f23351a5d25faa99ed9a1b5758c285248a4a23
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SHA256
0bc19c1c25a5884dd846841150c9de183a78a509e6480536e5ff723eef4e188a
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SHA512
a22227684cb8e52b3b55f51f35bf86c0e6ca0389da895c00cfd41df0a18a5d626e5077109f572e8cba358d3b85835f666cbe08a27cc02ad24860df1b04b5b7a1
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SSDEEP
6144:Th6URLisFqfZLFd+Vc9DbHOwN4q8nD8M+YRhvZMFMWw1:F6aHFqfZLFsc9X4q84OhvZ8M
Malware Config
Extracted
emotet
Epoch1
181.59.253.20:21
14.160.93.230:80
74.208.68.48:8080
104.131.58.132:8080
68.183.190.199:8080
62.75.143.100:7080
159.203.204.126:8080
151.80.142.33:80
123.168.4.66:22
46.28.111.142:7080
46.101.212.195:8080
183.82.97.25:80
190.10.194.42:8080
217.199.160.224:8080
186.1.41.111:443
185.86.148.222:8080
185.187.198.10:8080
200.57.102.71:8443
114.79.134.129:443
80.85.87.122:8080
87.106.77.40:7080
186.0.95.172:80
190.230.60.129:80
125.99.61.162:7080
142.93.82.57:8080
77.55.211.77:8080
178.79.163.131:8080
82.196.15.205:8080
139.5.237.27:443
178.249.187.151:8080
46.41.151.103:8080
71.244.60.230:7080
190.221.50.210:8080
212.71.237.140:8080
200.51.94.251:143
50.28.51.143:8080
77.245.101.134:8080
88.250.223.190:8080
181.36.42.205:443
86.42.166.147:80
190.97.30.167:990
189.166.68.89:443
110.36.234.146:80
170.84.133.72:7080
190.1.37.125:443
76.69.29.42:80
62.75.160.178:8080
91.205.215.57:7080
119.92.51.40:8080
190.38.14.52:80
109.104.79.48:8080
5.196.35.138:7080
119.59.124.163:8080
181.188.149.134:80
79.129.0.173:8080
46.29.183.211:8080
91.83.93.124:7080
189.160.49.234:8443
119.159.150.176:443
149.62.173.247:8080
71.244.60.231:7080
68.183.170.114:8080
81.169.140.14:443
138.68.106.4:7080
46.163.144.228:80
184.69.214.94:20
190.104.253.234:990
79.143.182.254:8080
51.15.8.192:8080
109.169.86.13:8080
181.29.101.13:8080
187.188.166.192:80
201.199.93.30:443
201.163.74.202:443
94.183.71.206:7080
5.1.86.195:8080
203.25.159.3:8080
181.44.166.242:80
200.58.171.51:80
181.143.101.18:8080
190.85.152.186:8080
170.84.133.72:8443
190.230.60.129:8080
89.188.124.145:443
Signatures
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Drops file in System32 directory 1 IoCs
Processes:
classfinish.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat classfinish.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies data under HKEY_USERS 21 IoCs
Processes:
classfinish.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad classfinish.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{423E2C3A-0A18-4186-8DC8-103F189F6C6E} classfinish.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{423E2C3A-0A18-4186-8DC8-103F189F6C6E}\WpadDecisionReason = "1" classfinish.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-e9-a5-a8-90-df\WpadDecisionTime = e09a5432a604d901 classfinish.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-e9-a5-a8-90-df\WpadDecision = "0" classfinish.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings classfinish.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections classfinish.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 classfinish.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings classfinish.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0033000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 classfinish.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{423E2C3A-0A18-4186-8DC8-103F189F6C6E}\a2-e9-a5-a8-90-df classfinish.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix classfinish.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" classfinish.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 classfinish.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{423E2C3A-0A18-4186-8DC8-103F189F6C6E}\WpadNetworkName = "Network 2" classfinish.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-e9-a5-a8-90-df classfinish.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-e9-a5-a8-90-df\WpadDecisionReason = "1" classfinish.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" classfinish.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" classfinish.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{423E2C3A-0A18-4186-8DC8-103F189F6C6E}\WpadDecisionTime = e09a5432a604d901 classfinish.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{423E2C3A-0A18-4186-8DC8-103F189F6C6E}\WpadDecision = "0" classfinish.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
classfinish.exepid process 1760 classfinish.exe 1760 classfinish.exe 1760 classfinish.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
62f23351a5d25faa99ed9a1b5758c285248a4a23.exepid process 1384 62f23351a5d25faa99ed9a1b5758c285248a4a23.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
62f23351a5d25faa99ed9a1b5758c285248a4a23.execlassfinish.exedescription pid process target process PID 1672 wrote to memory of 1384 1672 62f23351a5d25faa99ed9a1b5758c285248a4a23.exe 62f23351a5d25faa99ed9a1b5758c285248a4a23.exe PID 1672 wrote to memory of 1384 1672 62f23351a5d25faa99ed9a1b5758c285248a4a23.exe 62f23351a5d25faa99ed9a1b5758c285248a4a23.exe PID 1672 wrote to memory of 1384 1672 62f23351a5d25faa99ed9a1b5758c285248a4a23.exe 62f23351a5d25faa99ed9a1b5758c285248a4a23.exe PID 1672 wrote to memory of 1384 1672 62f23351a5d25faa99ed9a1b5758c285248a4a23.exe 62f23351a5d25faa99ed9a1b5758c285248a4a23.exe PID 1632 wrote to memory of 1760 1632 classfinish.exe classfinish.exe PID 1632 wrote to memory of 1760 1632 classfinish.exe classfinish.exe PID 1632 wrote to memory of 1760 1632 classfinish.exe classfinish.exe PID 1632 wrote to memory of 1760 1632 classfinish.exe classfinish.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\62f23351a5d25faa99ed9a1b5758c285248a4a23.exe"C:\Users\Admin\AppData\Local\Temp\62f23351a5d25faa99ed9a1b5758c285248a4a23.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\62f23351a5d25faa99ed9a1b5758c285248a4a23.exe--47c915dd2⤵
- Suspicious behavior: RenamesItself
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C:\Windows\SysWOW64\classfinish.exe"C:\Windows\SysWOW64\classfinish.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\classfinish.exe--67aa99812⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1384-60-0x0000000000000000-mapping.dmp
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memory/1384-63-0x0000000000350000-0x0000000000367000-memory.dmpFilesize
92KB
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memory/1632-69-0x0000000000250000-0x0000000000267000-memory.dmpFilesize
92KB
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memory/1672-54-0x0000000076AE1000-0x0000000076AE3000-memory.dmpFilesize
8KB
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memory/1672-55-0x00000000002D0000-0x00000000002E7000-memory.dmpFilesize
92KB
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memory/1672-61-0x0000000000220000-0x0000000000230000-memory.dmpFilesize
64KB
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memory/1760-74-0x0000000000000000-mapping.dmp
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memory/1760-76-0x0000000000230000-0x0000000000247000-memory.dmpFilesize
92KB