Analysis
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max time kernel
140s -
max time network
139s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
14-04-2021 14:19
Behavioral task
behavioral1
Sample
documents-1472621861.xlsb
Resource
win7v20210410
General
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Target
documents-1472621861.xlsb
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Size
94KB
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MD5
7046115d4093bb8a33ae64df0a85c4dd
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SHA1
602a43d4665ea83f3e1d0f1bc27ce83f515e6360
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SHA256
e443c61de95ddab96eb2f2658ace7b6d9b03dc3b9b37068396ecd655eb543aec
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SHA512
99c0183e937ab6a272fc4fda56eb4eac1e845d1f99a994290e3b380974e973be340b972d5d5186377f5448d949133b7e00790dbd05869b56bd2916c111dc1ef5
Malware Config
Extracted
qakbot
tr
1618398298
47.196.192.184:443
216.201.162.158:443
136.232.34.70:443
71.41.184.10:3389
140.82.49.12:443
45.63.107.192:2222
45.63.107.192:443
149.28.98.196:443
45.32.211.207:443
144.202.38.185:443
45.77.115.208:2222
45.77.115.208:8443
207.246.116.237:995
45.77.117.108:443
149.28.99.97:443
149.28.99.97:995
149.28.98.196:995
45.32.211.207:995
45.32.211.207:2222
149.28.98.196:2222
45.32.211.207:8443
144.202.38.185:2222
144.202.38.185:995
149.28.101.90:995
149.28.101.90:8443
149.28.101.90:443
149.28.101.90:2222
45.77.115.208:443
45.77.115.208:995
207.246.77.75:995
207.246.77.75:443
207.246.77.75:2222
207.246.77.75:8443
207.246.116.237:443
207.246.116.237:8443
207.246.116.237:2222
45.77.117.108:995
45.77.117.108:2222
45.77.117.108:8443
195.6.1.154:2222
105.198.236.101:443
105.198.236.99:443
188.26.91.212:443
81.97.154.100:443
78.63.226.32:443
45.63.107.192:995
149.28.99.97:2222
115.133.243.6:443
27.223.92.142:995
76.25.142.196:443
75.118.1.141:443
24.117.107.120:443
173.21.10.71:2222
73.151.236.31:443
67.165.206.193:993
71.74.12.34:443
108.14.4.202:443
98.252.118.134:443
47.22.148.6:443
72.252.201.69:443
75.67.192.125:443
189.210.115.207:443
75.137.47.174:443
151.205.102.42:443
98.192.185.86:443
24.43.22.221:993
190.85.91.154:443
24.55.112.61:443
86.220.62.251:2222
71.163.222.243:443
97.69.160.4:2222
24.229.150.54:995
90.65.236.181:2222
72.240.200.181:2222
67.8.103.21:443
73.25.124.140:2222
24.152.219.253:995
109.12.111.14:443
86.190.41.156:443
24.139.72.117:443
71.187.170.235:443
24.226.156.153:443
186.31.46.121:443
197.45.110.165:995
50.244.112.106:443
96.61.23.88:995
45.46.53.140:2222
50.29.166.232:995
95.77.223.148:443
94.59.106.186:2078
83.110.109.164:2222
64.121.114.87:443
144.139.47.206:443
96.37.113.36:993
222.153.174.162:995
172.78.56.208:443
77.27.207.217:995
24.95.61.62:443
77.211.30.202:995
92.59.35.196:2222
106.51.52.111:995
184.189.122.72:443
195.12.154.8:443
68.186.192.69:443
75.136.40.155:443
71.117.132.169:443
96.21.251.127:2222
71.199.192.62:443
70.168.130.172:995
83.196.56.65:2222
81.214.126.173:2222
82.12.157.95:995
209.210.187.52:995
209.210.187.52:443
67.6.12.4:443
189.222.59.177:443
174.104.22.30:443
142.117.191.18:2222
189.146.183.105:443
213.60.147.140:443
196.221.207.137:995
108.46.145.30:443
187.250.238.164:995
2.7.116.188:2222
195.43.173.70:443
106.250.150.98:443
45.67.231.247:443
83.110.103.152:443
83.110.9.71:2222
78.97.207.104:443
59.90.246.200:443
80.227.5.69:443
125.63.101.62:443
86.236.77.68:2222
109.106.69.138:2222
84.72.35.226:443
217.133.54.140:32100
197.161.154.132:443
89.137.211.239:995
74.222.204.82:995
122.148.156.131:995
156.223.110.23:443
144.139.166.18:443
202.185.166.181:443
76.94.200.148:995
71.63.120.101:443
196.151.252.84:443
202.188.138.162:443
74.68.144.202:443
69.58.147.82:2078
Signatures
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Process spawned unexpected child process 5 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3880 4656 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3852 4656 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4040 4656 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4072 4656 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4372 4656 rundll32.exe 67 -
Loads dropped DLL 2 IoCs
pid Process 4032 rundll32.exe 4592 regsvr32.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 4240 4592 WerFault.exe 90 -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4348 schtasks.exe -
Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4656 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 4032 rundll32.exe 4032 rundll32.exe 4240 WerFault.exe 4240 WerFault.exe 4240 WerFault.exe 4240 WerFault.exe 4240 WerFault.exe 4240 WerFault.exe 4240 WerFault.exe 4240 WerFault.exe 4240 WerFault.exe 4240 WerFault.exe 4240 WerFault.exe 4240 WerFault.exe 4240 WerFault.exe 4240 WerFault.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4032 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeRestorePrivilege 4240 WerFault.exe Token: SeBackupPrivilege 4240 WerFault.exe Token: SeDebugPrivilege 4240 WerFault.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4656 EXCEL.EXE 4656 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
pid Process 4656 EXCEL.EXE 4656 EXCEL.EXE 4656 EXCEL.EXE 4656 EXCEL.EXE 4656 EXCEL.EXE 4656 EXCEL.EXE 4656 EXCEL.EXE 4656 EXCEL.EXE 4656 EXCEL.EXE 4656 EXCEL.EXE 4656 EXCEL.EXE 4656 EXCEL.EXE 4656 EXCEL.EXE 4656 EXCEL.EXE -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 4656 wrote to memory of 3880 4656 EXCEL.EXE 80 PID 4656 wrote to memory of 3880 4656 EXCEL.EXE 80 PID 4656 wrote to memory of 3852 4656 EXCEL.EXE 81 PID 4656 wrote to memory of 3852 4656 EXCEL.EXE 81 PID 4656 wrote to memory of 4040 4656 EXCEL.EXE 82 PID 4656 wrote to memory of 4040 4656 EXCEL.EXE 82 PID 4656 wrote to memory of 4072 4656 EXCEL.EXE 83 PID 4656 wrote to memory of 4072 4656 EXCEL.EXE 83 PID 4072 wrote to memory of 4032 4072 rundll32.exe 84 PID 4072 wrote to memory of 4032 4072 rundll32.exe 84 PID 4072 wrote to memory of 4032 4072 rundll32.exe 84 PID 4032 wrote to memory of 1836 4032 rundll32.exe 85 PID 4032 wrote to memory of 1836 4032 rundll32.exe 85 PID 4032 wrote to memory of 1836 4032 rundll32.exe 85 PID 4032 wrote to memory of 1836 4032 rundll32.exe 85 PID 4032 wrote to memory of 1836 4032 rundll32.exe 85 PID 4656 wrote to memory of 4372 4656 EXCEL.EXE 86 PID 4656 wrote to memory of 4372 4656 EXCEL.EXE 86 PID 1836 wrote to memory of 4348 1836 explorer.exe 87 PID 1836 wrote to memory of 4348 1836 explorer.exe 87 PID 1836 wrote to memory of 4348 1836 explorer.exe 87 PID 4600 wrote to memory of 4592 4600 regsvr32.exe 90 PID 4600 wrote to memory of 4592 4600 regsvr32.exe 90 PID 4600 wrote to memory of 4592 4600 regsvr32.exe 90
Processes
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\documents-1472621861.xlsb"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4656 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\wiroe.oer1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:3880
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C:\Windows\SYSTEM32\rundll32.exerundll32 ..\wiroe.oer2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:3852
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C:\Windows\SYSTEM32\rundll32.exerundll32 ..\wiroe.oer3,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:4040
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C:\Windows\SYSTEM32\rundll32.exerundll32 ..\wiroe.oer4,DllRegisterServer2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:4072 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\wiroe.oer4,DllRegisterServer3⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4032 -
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe4⤵
- Suspicious use of WriteProcessMemory
PID:1836 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn qhgyhxg /tr "regsvr32.exe -s \"C:\Users\Admin\wiroe.oer4\"" /SC ONCE /Z /ST 16:18 /ET 16:305⤵
- Creates scheduled task(s)
PID:4348
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C:\Windows\SYSTEM32\rundll32.exerundll32 ..\wiroe.oer5,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:4372
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\??\c:\windows\system32\regsvr32.exeregsvr32.exe -s "C:\Users\Admin\wiroe.oer4"1⤵
- Suspicious use of WriteProcessMemory
PID:4600 -
C:\Windows\SysWOW64\regsvr32.exe-s "C:\Users\Admin\wiroe.oer4"2⤵
- Loads dropped DLL
PID:4592 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4592 -s 1803⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4240
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