Analysis
-
max time kernel
125s -
max time network
142s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220113 -
submitted
19-03-2022 23:16
Behavioral task
behavioral1
Sample
b3c6c37f4bd2a9f13bbeae0885d3fc885b76b212b8e0736b2f8140555e1b9351.dll
Resource
win7-20220311-en
General
-
Target
b3c6c37f4bd2a9f13bbeae0885d3fc885b76b212b8e0736b2f8140555e1b9351.dll
-
Size
2.5MB
-
MD5
b1e560d1d96195d4979a2920ebc6fa3a
-
SHA1
3f97c18a80621ce801a8d690cebba1e64ccd949c
-
SHA256
b3c6c37f4bd2a9f13bbeae0885d3fc885b76b212b8e0736b2f8140555e1b9351
-
SHA512
665c326d87f27f5d285c08f8044678a2b68fe00261748ddefd4d7fa20adf87719d8d33a6b11678c3c216e78e29b15fc942ba6e4ee7602d5e4ec1944382233b7f
Malware Config
Extracted
qakbot
401.157
abc117
1608747966
67.6.54.180:443
187.250.170.34:995
67.141.11.98:443
109.154.79.222:2222
2.88.184.160:443
85.52.72.32:2222
86.98.21.234:443
73.166.10.38:50003
90.61.30.155:2222
71.182.142.63:443
178.223.22.192:995
184.189.122.72:443
181.39.236.199:443
72.240.200.181:2222
154.238.45.174:995
47.22.148.6:443
2.51.251.47:995
199.19.117.131:443
200.76.215.87:443
37.104.39.32:995
14.137.64.132:995
70.126.76.75:443
5.194.151.240:2222
83.202.68.220:2222
189.251.67.57:995
197.161.154.132:443
120.150.218.241:995
75.136.40.155:443
151.205.102.42:443
41.39.134.183:443
187.213.80.185:995
82.12.157.95:995
77.136.21.144:995
47.40.78.73:443
173.18.126.193:2222
51.9.198.164:2222
94.26.114.54:443
197.45.110.165:995
184.90.50.79:995
77.30.61.241:995
47.134.138.15:443
196.151.252.84:443
23.236.12.55:443
81.88.254.62:443
105.198.236.99:443
78.97.248.88:443
188.25.61.41:443
45.77.115.208:443
45.77.115.208:2222
45.32.211.207:995
149.28.101.90:8443
45.77.115.208:8443
216.215.77.18:2078
45.32.211.207:8443
207.246.77.75:2222
207.246.77.75:995
98.16.204.189:995
80.106.85.24:2222
86.126.220.203:443
71.14.110.199:443
83.110.241.182:443
76.111.128.194:443
32.212.117.188:443
72.36.59.46:2222
68.186.192.69:443
105.226.38.36:443
109.106.69.138:2222
108.46.145.30:443
181.129.155.10:443
37.210.255.225:995
74.195.52.3:443
73.166.10.38:443
190.24.187.90:443
95.77.223.148:443
47.196.49.123:443
24.229.150.54:995
189.172.242.124:443
140.82.49.12:443
212.197.145.59:995
47.208.8.187:443
2.88.48.122:995
68.15.109.125:443
2.90.219.195:443
151.60.45.241:443
217.165.3.30:443
190.72.211.89:2222
84.247.55.190:8443
74.222.204.82:995
98.240.24.57:443
92.59.35.196:2083
174.20.167.39:995
45.63.107.192:443
96.61.23.88:995
108.190.151.108:2222
45.77.115.208:995
144.202.38.185:2222
24.185.65.68:443
149.28.98.196:2222
24.122.0.90:443
175.141.131.195:443
197.49.109.229:995
75.67.192.125:443
187.202.130.179:443
67.82.244.199:2222
41.228.211.35:443
197.82.221.199:443
90.53.100.20:2222
37.210.132.106:995
191.84.1.58:443
73.166.10.38:61202
86.98.223.81:22
80.11.5.65:2222
187.7.236.197:995
81.214.126.173:2222
90.201.21.58:443
89.137.211.239:995
24.234.204.230:995
189.222.83.156:443
181.134.233.216:443
95.77.144.238:443
100.43.250.74:995
69.47.239.10:443
151.52.8.91:443
197.237.62.207:443
89.136.112.74:443
190.85.91.154:443
2.50.167.241:443
193.248.154.174:2222
207.246.77.75:8443
24.139.72.117:443
149.28.99.97:2222
45.63.107.192:2222
144.202.38.185:443
207.246.77.75:443
149.28.98.196:443
149.28.98.196:995
149.28.101.90:2222
149.28.101.90:995
144.202.38.185:995
85.204.189.105:443
96.19.117.140:443
106.250.150.98:443
98.190.24.81:443
37.116.152.122:2078
172.87.157.235:3389
216.201.162.158:443
95.76.27.6:443
174.87.65.179:443
50.244.112.106:443
189.157.252.151:443
Signatures
-
Loads dropped DLL 1 IoCs
Processes:
regsvr32.exepid process 4472 regsvr32.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 4952 4472 WerFault.exe regsvr32.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
-
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
rundll32.exepid process 3732 rundll32.exe 3732 rundll32.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
rundll32.exepid process 3732 rundll32.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
rundll32.exerundll32.exeexplorer.exeregsvr32.exedescription pid process target process PID 3316 wrote to memory of 3732 3316 rundll32.exe rundll32.exe PID 3316 wrote to memory of 3732 3316 rundll32.exe rundll32.exe PID 3316 wrote to memory of 3732 3316 rundll32.exe rundll32.exe PID 3732 wrote to memory of 4436 3732 rundll32.exe explorer.exe PID 3732 wrote to memory of 4436 3732 rundll32.exe explorer.exe PID 3732 wrote to memory of 4436 3732 rundll32.exe explorer.exe PID 3732 wrote to memory of 4436 3732 rundll32.exe explorer.exe PID 3732 wrote to memory of 4436 3732 rundll32.exe explorer.exe PID 4436 wrote to memory of 1388 4436 explorer.exe schtasks.exe PID 4436 wrote to memory of 1388 4436 explorer.exe schtasks.exe PID 4436 wrote to memory of 1388 4436 explorer.exe schtasks.exe PID 4264 wrote to memory of 4472 4264 regsvr32.exe regsvr32.exe PID 4264 wrote to memory of 4472 4264 regsvr32.exe regsvr32.exe PID 4264 wrote to memory of 4472 4264 regsvr32.exe regsvr32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\b3c6c37f4bd2a9f13bbeae0885d3fc885b76b212b8e0736b2f8140555e1b9351.dll,#11⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\b3c6c37f4bd2a9f13bbeae0885d3fc885b76b212b8e0736b2f8140555e1b9351.dll,#12⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn fylrhux /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\b3c6c37f4bd2a9f13bbeae0885d3fc885b76b212b8e0736b2f8140555e1b9351.dll\"" /SC ONCE /Z /ST 11:21 /ET 11:334⤵
- Creates scheduled task(s)
-
C:\Windows\system32\regsvr32.exeregsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\b3c6c37f4bd2a9f13bbeae0885d3fc885b76b212b8e0736b2f8140555e1b9351.dll"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\regsvr32.exe-s "C:\Users\Admin\AppData\Local\Temp\b3c6c37f4bd2a9f13bbeae0885d3fc885b76b212b8e0736b2f8140555e1b9351.dll"2⤵
- Loads dropped DLL
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4472 -s 5843⤵
- Program crash
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4472 -ip 44721⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\b3c6c37f4bd2a9f13bbeae0885d3fc885b76b212b8e0736b2f8140555e1b9351.dllMD5
0fdb39ecf109dd1a7ecae7784a5bfd94
SHA106fda367974dc4c422bb3fc2ee5ccb2a47570acd
SHA2561b14c2fe0e9630430ed3a5366a0e82120b295f79a4c70b5006c1bfd59fa6e131
SHA51217c5502ada7e6081757ac1b08fc2d92df885fb16fbbd8591f8313b41c8a5bb6333fd79e8438f301f377ffd88a08d212ac839bcba42323958e6693cd49f28897c
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C:\Users\Admin\AppData\Local\Temp\b3c6c37f4bd2a9f13bbeae0885d3fc885b76b212b8e0736b2f8140555e1b9351.dllMD5
0fdb39ecf109dd1a7ecae7784a5bfd94
SHA106fda367974dc4c422bb3fc2ee5ccb2a47570acd
SHA2561b14c2fe0e9630430ed3a5366a0e82120b295f79a4c70b5006c1bfd59fa6e131
SHA51217c5502ada7e6081757ac1b08fc2d92df885fb16fbbd8591f8313b41c8a5bb6333fd79e8438f301f377ffd88a08d212ac839bcba42323958e6693cd49f28897c
-
memory/3732-133-0x00000000026D0000-0x00000000028BA000-memory.dmpFilesize
1.9MB
-
memory/3732-134-0x0000000010000000-0x000000001028A000-memory.dmpFilesize
2.5MB
-
memory/4436-135-0x00000000009C0000-0x0000000000DF3000-memory.dmpFilesize
4.2MB
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memory/4436-136-0x0000000000600000-0x0000000000634000-memory.dmpFilesize
208KB