Analysis
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max time kernel
143s -
max time network
149s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
03-03-2021 16:48
Behavioral task
behavioral1
Sample
657.exe
Resource
win7v20201028
General
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Target
657.exe
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Size
361KB
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MD5
55cb6ea4c374a5c28ddb60754f7fa47d
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SHA1
414ccc751051dde96679662b8067f8a13d722047
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SHA256
004222c4f6b6df52371132843f2b7cff9d390b308438791df50fc9a9a38d47bd
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SHA512
9b8a9eeafc0120628af504e086b5edf7eb627172a7d3c956da2913f2d69b8b99d041e7c4b2c5c852e57c37f62e9dabfc818d45ddc23935d3ba85e62076d6ff55
Malware Config
Extracted
emotet
Epoch1
181.123.0.125:80
119.159.150.176:443
184.69.214.94:20
80.240.141.141:7080
185.187.198.10:8080
46.41.134.46:8080
178.249.187.151:8080
217.199.160.224:8080
186.83.133.253:8080
23.92.22.225:7080
212.71.237.140:8080
190.221.50.210:8080
187.199.158.226:443
185.86.148.222:8080
200.58.171.51:80
77.245.101.134:8080
201.163.74.202:443
203.25.159.3:8080
183.82.97.25:80
51.15.8.192:8080
5.77.13.70:80
181.36.42.205:443
178.79.163.131:8080
217.113.27.158:443
62.75.143.100:7080
189.187.141.15:50000
77.55.211.77:8080
81.169.140.14:443
87.106.77.40:7080
114.79.134.129:443
217.199.175.216:8080
149.62.173.247:8080
46.29.183.211:8080
200.21.90.6:8080
187.188.166.192:80
123.168.4.66:22
190.230.60.129:80
138.68.106.4:7080
181.167.53.209:80
190.200.64.180:7080
190.104.253.234:990
119.92.51.40:8080
62.75.160.178:8080
186.0.95.172:80
109.169.86.13:8080
151.80.142.33:80
119.59.124.163:8080
86.42.166.147:80
71.244.60.231:7080
50.28.51.143:8080
91.205.215.57:7080
80.85.87.122:8080
201.214.74.71:80
179.62.18.56:443
89.188.124.145:443
190.38.14.52:80
190.117.206.153:443
71.244.60.230:7080
201.184.65.229:80
88.250.223.190:8080
5.196.35.138:7080
139.5.237.27:443
187.155.233.46:443
190.158.19.141:80
46.21.105.59:8080
187.199.158.226:7080
189.166.68.89:443
200.57.102.71:8443
159.203.204.126:8080
181.188.149.134:80
46.163.144.228:80
91.83.93.124:7080
170.84.133.72:8443
46.28.111.142:7080
211.229.116.97:80
109.104.79.48:8080
46.41.151.103:8080
190.1.37.125:443
190.230.60.129:8080
170.84.133.72:7080
79.143.182.254:8080
181.230.212.74:80
187.235.239.214:8080
Signatures
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Drops file in System32 directory 5 IoCs
Processes:
cvtsorted.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE cvtsorted.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies cvtsorted.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 cvtsorted.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\counters2.dat cvtsorted.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 cvtsorted.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 3 IoCs
Processes:
cvtsorted.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix cvtsorted.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" cvtsorted.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" cvtsorted.exe -
Suspicious behavior: EmotetMutantsSpam 2 IoCs
Processes:
657.execvtsorted.exepid process 3156 657.exe 1068 cvtsorted.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
Processes:
cvtsorted.exepid process 1068 cvtsorted.exe 1068 cvtsorted.exe 1068 cvtsorted.exe 1068 cvtsorted.exe 1068 cvtsorted.exe 1068 cvtsorted.exe 1068 cvtsorted.exe 1068 cvtsorted.exe 1068 cvtsorted.exe 1068 cvtsorted.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
657.exepid process 3156 657.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
AUDIODG.EXEdescription pid process Token: 33 2996 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 2996 AUDIODG.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
657.execvtsorted.exedescription pid process target process PID 4700 wrote to memory of 3156 4700 657.exe 657.exe PID 4700 wrote to memory of 3156 4700 657.exe 657.exe PID 4700 wrote to memory of 3156 4700 657.exe 657.exe PID 368 wrote to memory of 1068 368 cvtsorted.exe cvtsorted.exe PID 368 wrote to memory of 1068 368 cvtsorted.exe cvtsorted.exe PID 368 wrote to memory of 1068 368 cvtsorted.exe cvtsorted.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\657.exe"C:\Users\Admin\AppData\Local\Temp\657.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\657.exe--4c577d7c2⤵
- Suspicious behavior: EmotetMutantsSpam
- Suspicious behavior: RenamesItself
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x39c1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cvtsorted.exe"C:\Windows\SysWOW64\cvtsorted.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cvtsorted.exe--7000f8142⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EmotetMutantsSpam
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1068-9-0x0000000000000000-mapping.dmp
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memory/1068-12-0x0000000000400000-0x0000000000417000-memory.dmpFilesize
92KB
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memory/3156-3-0x0000000000000000-mapping.dmp
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memory/3156-6-0x0000000000400000-0x0000000000417000-memory.dmpFilesize
92KB
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memory/4700-2-0x00000000022E0000-0x00000000022F5000-memory.dmpFilesize
84KB
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memory/4700-4-0x0000000000400000-0x0000000000417000-memory.dmpFilesize
92KB