Analysis
-
max time kernel
150s -
max time network
138s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
15-04-2021 13:21
Static task
static1
Behavioral task
behavioral1
Sample
Documents 4995.xlsb
Resource
win7v20210410
General
-
Target
Documents 4995.xlsb
-
Size
75KB
-
MD5
f26158691ea9aeec5e2aa69e58c65c7d
-
SHA1
0954a286bd666290d9396833cf948c62cd038492
-
SHA256
ee1e81fcd5e336fd2d19cc9eb0a5a8f796613f387b1b7216106d7130da0ea3cf
-
SHA512
6b223115cccfc67ce2449689af76744549d58b85f0cf491c591d6bfe60eb0bcd81f6b5044fafd62ecce90202a3ffb727b1617b93cf1184990e14412ac286b0fb
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
-
Process spawned unexpected child process 5 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
rundll32.exerundll32.exerundll32.exerundll32.exerundll32.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1192 4044 rundll32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3868 4044 rundll32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3200 4044 rundll32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2704 4044 rundll32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1480 4044 rundll32.exe EXCEL.EXE -
Loads dropped DLL 2 IoCs
Processes:
rundll32.exeregsvr32.exepid process 3780 rundll32.exe 1188 regsvr32.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 3284 1188 WerFault.exe regsvr32.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE 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 -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
-
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 4044 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 16 IoCs
Processes:
rundll32.exeWerFault.exepid process 3780 rundll32.exe 3780 rundll32.exe 3284 WerFault.exe 3284 WerFault.exe 3284 WerFault.exe 3284 WerFault.exe 3284 WerFault.exe 3284 WerFault.exe 3284 WerFault.exe 3284 WerFault.exe 3284 WerFault.exe 3284 WerFault.exe 3284 WerFault.exe 3284 WerFault.exe 3284 WerFault.exe 3284 WerFault.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
rundll32.exepid process 3780 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
WerFault.exedescription pid process Token: SeRestorePrivilege 3284 WerFault.exe Token: SeBackupPrivilege 3284 WerFault.exe Token: SeDebugPrivilege 3284 WerFault.exe -
Suspicious use of SetWindowsHookEx 14 IoCs
Processes:
EXCEL.EXEpid process 4044 EXCEL.EXE 4044 EXCEL.EXE 4044 EXCEL.EXE 4044 EXCEL.EXE 4044 EXCEL.EXE 4044 EXCEL.EXE 4044 EXCEL.EXE 4044 EXCEL.EXE 4044 EXCEL.EXE 4044 EXCEL.EXE 4044 EXCEL.EXE 4044 EXCEL.EXE 4044 EXCEL.EXE 4044 EXCEL.EXE -
Suspicious use of WriteProcessMemory 24 IoCs
Processes:
EXCEL.EXErundll32.exerundll32.exeexplorer.exeregsvr32.exedescription pid process target process PID 4044 wrote to memory of 1192 4044 EXCEL.EXE rundll32.exe PID 4044 wrote to memory of 1192 4044 EXCEL.EXE rundll32.exe PID 1192 wrote to memory of 3780 1192 rundll32.exe rundll32.exe PID 1192 wrote to memory of 3780 1192 rundll32.exe rundll32.exe PID 1192 wrote to memory of 3780 1192 rundll32.exe rundll32.exe PID 3780 wrote to memory of 1516 3780 rundll32.exe explorer.exe PID 3780 wrote to memory of 1516 3780 rundll32.exe explorer.exe PID 3780 wrote to memory of 1516 3780 rundll32.exe explorer.exe PID 3780 wrote to memory of 1516 3780 rundll32.exe explorer.exe PID 3780 wrote to memory of 1516 3780 rundll32.exe explorer.exe PID 4044 wrote to memory of 3868 4044 EXCEL.EXE rundll32.exe PID 4044 wrote to memory of 3868 4044 EXCEL.EXE rundll32.exe PID 1516 wrote to memory of 2352 1516 explorer.exe schtasks.exe PID 1516 wrote to memory of 2352 1516 explorer.exe schtasks.exe PID 1516 wrote to memory of 2352 1516 explorer.exe schtasks.exe PID 4044 wrote to memory of 3200 4044 EXCEL.EXE rundll32.exe PID 4044 wrote to memory of 3200 4044 EXCEL.EXE rundll32.exe PID 4044 wrote to memory of 2704 4044 EXCEL.EXE rundll32.exe PID 4044 wrote to memory of 2704 4044 EXCEL.EXE rundll32.exe PID 4044 wrote to memory of 1480 4044 EXCEL.EXE rundll32.exe PID 4044 wrote to memory of 1480 4044 EXCEL.EXE rundll32.exe PID 4064 wrote to memory of 1188 4064 regsvr32.exe regsvr32.exe PID 4064 wrote to memory of 1188 4064 regsvr32.exe regsvr32.exe PID 4064 wrote to memory of 1188 4064 regsvr32.exe regsvr32.exe
Processes
-
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 4995.xlsb"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4044 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\fikftkm.thj,DllRegisterServer2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:1192 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\fikftkm.thj,DllRegisterServer3⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3780 -
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe4⤵
- Suspicious use of WriteProcessMemory
PID:1516 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn sbbshmjo /tr "regsvr32.exe -s \"C:\Users\Admin\fikftkm.thj\"" /SC ONCE /Z /ST 15:20 /ET 15:325⤵
- Creates scheduled task(s)
PID:2352 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\fikftkm.thj1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:3868 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\fikftkm.thj2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:3200 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\fikftkm.thj3,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2704 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\fikftkm.thj4,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1480
-
\??\c:\windows\system32\regsvr32.exeregsvr32.exe -s "C:\Users\Admin\fikftkm.thj"1⤵
- Suspicious use of WriteProcessMemory
PID:4064 -
C:\Windows\SysWOW64\regsvr32.exe-s "C:\Users\Admin\fikftkm.thj"2⤵
- Loads dropped DLL
PID:1188 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1188 -s 6083⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3284
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
-
MD5
f39651904de252f4e96ece7a5f844f8d
SHA1a4d212ee9cba9ae0a79582182ac4776948349541
SHA25602caf6e564c885476eded0b0558f70858a418fd8226eab2a9b79317500a471ae
SHA5126431bfb563ef1050ac58fecaf72def360003b1ec0c31e4e31eefab838ee2b8eef582025cbd20162c6f146ef29313df1dfb2bdb1b5d01bb227b638b6e8d68733e
-
MD5
5f0765c2bef2b169d71896cc95f7d120
SHA16d9aacb219c90e8c9b1e77b273b99a3b7193cbda
SHA2561de69d0f094caffad141b0efb4581ba819e3da6b38c0993ac778309fb44bf2ad
SHA512534240e12033399de720ac84245dabe016f1496a533cd7dc8a6c953b3950005171df91d4bb49ad2a09e56bb0804319da8aa6048b0ceaa529379073e8901924df
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MD5
f39651904de252f4e96ece7a5f844f8d
SHA1a4d212ee9cba9ae0a79582182ac4776948349541
SHA25602caf6e564c885476eded0b0558f70858a418fd8226eab2a9b79317500a471ae
SHA5126431bfb563ef1050ac58fecaf72def360003b1ec0c31e4e31eefab838ee2b8eef582025cbd20162c6f146ef29313df1dfb2bdb1b5d01bb227b638b6e8d68733e
-
MD5
5f0765c2bef2b169d71896cc95f7d120
SHA16d9aacb219c90e8c9b1e77b273b99a3b7193cbda
SHA2561de69d0f094caffad141b0efb4581ba819e3da6b38c0993ac778309fb44bf2ad
SHA512534240e12033399de720ac84245dabe016f1496a533cd7dc8a6c953b3950005171df91d4bb49ad2a09e56bb0804319da8aa6048b0ceaa529379073e8901924df