Analysis
-
max time kernel
129s -
max time network
8s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
02-03-2021 12:57
Static task
static1
Behavioral task
behavioral1
Sample
IEUDLK.CJF.dll
Resource
win7v20201028
General
-
Target
IEUDLK.CJF.dll
-
Size
424KB
-
MD5
97e6abcad2140619ff150d6253f62b8f
-
SHA1
0762a2db618f5dcc403139b671222aecb7c4aaf1
-
SHA256
24753d9f0d691b6d582da3e301b98f75abbdb5382bb871ee00713c5029c56d44
-
SHA512
54d55de10d22086a0d77cad5b833ceee0b1bcd62062e56c0af5deaa64b0bbc84f45ac47905b833967b611a3e41eeb7f5ccc437619648cf69f8f1f04d50faaf08
Malware Config
Extracted
qakbot
tr
1614598087
24.95.61.62:443
89.3.198.238:443
196.151.252.84:443
90.65.236.181:2222
2.232.253.79:995
217.133.54.140:32100
195.43.173.70:443
84.247.55.190:8443
136.232.34.70:443
45.63.107.192:443
45.77.115.208:443
149.28.98.196:995
45.32.211.207:8443
149.28.98.196:443
149.28.99.97:443
45.63.107.192:2222
207.246.77.75:443
207.246.77.75:8443
45.77.117.108:443
45.32.211.207:995
144.202.38.185:2222
144.202.38.185:995
149.28.101.90:443
207.246.77.75:2222
207.246.77.75:995
45.77.115.208:2222
45.77.115.208:8443
207.246.116.237:443
207.246.116.237:2222
45.77.117.108:8443
149.28.98.196:2222
144.202.38.185:443
149.28.101.90:8443
149.28.101.90:2222
45.77.115.208:995
207.246.116.237:8443
207.246.116.237:995
45.77.117.108:995
45.77.117.108:2222
122.148.156.131:995
149.28.101.90:995
45.32.211.207:443
45.32.211.207:2222
149.28.99.97:2222
149.28.99.97:995
209.210.187.52:995
85.52.72.32:2222
86.236.77.68:2222
71.199.192.62:443
71.117.132.169:443
75.67.192.125:443
172.87.157.235:3389
79.115.174.55:443
95.77.223.148:443
83.110.9.71:2222
84.72.35.226:443
193.248.221.184:2222
68.186.192.69:443
75.136.40.155:443
2.7.116.188:2222
140.82.49.12:443
202.184.20.119:443
182.48.193.200:443
81.97.154.100:443
47.22.148.6:443
80.11.173.82:8443
213.60.147.140:443
197.161.154.132:443
89.137.211.239:995
78.180.179.136:443
83.196.56.65:2222
115.133.243.6:443
59.90.246.200:443
113.22.175.141:443
105.198.236.101:443
80.227.5.69:443
83.110.103.152:443
216.201.162.158:443
97.69.160.4:2222
65.27.228.247:443
75.118.1.141:443
81.214.126.173:2222
71.74.12.34:443
189.222.217.105:443
75.136.26.147:443
173.21.10.71:2222
203.198.96.249:443
73.153.211.227:443
197.45.110.165:995
144.139.166.18:443
76.25.142.196:443
96.37.113.36:993
71.197.126.250:443
24.43.22.218:993
74.222.204.82:995
67.6.12.4:443
108.29.32.251:443
142.117.191.18:2222
50.29.166.232:995
32.210.98.6:443
98.240.24.57:443
45.46.53.140:2222
172.78.30.215:443
47.196.192.184:443
186.31.77.42:443
83.110.108.38:2222
78.97.207.104:443
78.63.226.32:443
109.12.111.14:443
71.14.110.199:443
80.7.129.64:995
87.202.87.210:2222
74.68.144.202:443
196.221.207.137:995
197.51.82.72:443
202.188.138.162:443
176.181.247.197:443
189.222.199.37:995
188.26.91.212:443
41.39.134.183:443
98.192.185.86:443
105.96.8.96:443
47.187.108.172:443
105.198.236.99:443
94.53.92.42:443
174.104.22.30:443
189.222.59.177:443
181.48.190.78:443
119.157.106.105:3389
189.146.183.105:443
45.118.216.157:443
125.209.114.182:995
173.25.45.66:443
199.19.117.131:443
98.252.118.134:443
67.8.103.21:443
125.239.152.76:995
187.250.177.33:995
189.210.115.207:443
151.205.102.42:443
106.51.85.162:443
72.240.200.181:2222
72.252.201.69:443
209.210.187.52:443
108.46.145.30:443
24.139.72.117:443
71.163.223.159:443
24.229.150.54:995
45.63.107.192:995
82.12.157.95:995
Signatures
-
Loads dropped DLL 1 IoCs
Processes:
regsvr32.exepid process 1620 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:
regsvr32.exepid process 1512 regsvr32.exe 1512 regsvr32.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
regsvr32.exepid process 1512 regsvr32.exe -
Suspicious use of WriteProcessMemory 29 IoCs
Processes:
regsvr32.exeregsvr32.exeexplorer.exetaskeng.exeregsvr32.exedescription pid process target process PID 2008 wrote to memory of 1512 2008 regsvr32.exe regsvr32.exe PID 2008 wrote to memory of 1512 2008 regsvr32.exe regsvr32.exe PID 2008 wrote to memory of 1512 2008 regsvr32.exe regsvr32.exe PID 2008 wrote to memory of 1512 2008 regsvr32.exe regsvr32.exe PID 2008 wrote to memory of 1512 2008 regsvr32.exe regsvr32.exe PID 2008 wrote to memory of 1512 2008 regsvr32.exe regsvr32.exe PID 2008 wrote to memory of 1512 2008 regsvr32.exe regsvr32.exe PID 1512 wrote to memory of 544 1512 regsvr32.exe explorer.exe PID 1512 wrote to memory of 544 1512 regsvr32.exe explorer.exe PID 1512 wrote to memory of 544 1512 regsvr32.exe explorer.exe PID 1512 wrote to memory of 544 1512 regsvr32.exe explorer.exe PID 1512 wrote to memory of 544 1512 regsvr32.exe explorer.exe PID 1512 wrote to memory of 544 1512 regsvr32.exe explorer.exe PID 544 wrote to memory of 1656 544 explorer.exe schtasks.exe PID 544 wrote to memory of 1656 544 explorer.exe schtasks.exe PID 544 wrote to memory of 1656 544 explorer.exe schtasks.exe PID 544 wrote to memory of 1656 544 explorer.exe schtasks.exe PID 1476 wrote to memory of 1144 1476 taskeng.exe regsvr32.exe PID 1476 wrote to memory of 1144 1476 taskeng.exe regsvr32.exe PID 1476 wrote to memory of 1144 1476 taskeng.exe regsvr32.exe PID 1476 wrote to memory of 1144 1476 taskeng.exe regsvr32.exe PID 1476 wrote to memory of 1144 1476 taskeng.exe regsvr32.exe PID 1144 wrote to memory of 1620 1144 regsvr32.exe regsvr32.exe PID 1144 wrote to memory of 1620 1144 regsvr32.exe regsvr32.exe PID 1144 wrote to memory of 1620 1144 regsvr32.exe regsvr32.exe PID 1144 wrote to memory of 1620 1144 regsvr32.exe regsvr32.exe PID 1144 wrote to memory of 1620 1144 regsvr32.exe regsvr32.exe PID 1144 wrote to memory of 1620 1144 regsvr32.exe regsvr32.exe PID 1144 wrote to memory of 1620 1144 regsvr32.exe regsvr32.exe
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\IEUDLK.CJF.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2008 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\IEUDLK.CJF.dll2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1512 -
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe3⤵
- Suspicious use of WriteProcessMemory
PID:544 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn ieoqesk /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\IEUDLK.CJF.dll\"" /SC ONCE /Z /ST 12:55 /ET 13:074⤵
- Creates scheduled task(s)
PID:1656
-
-
-
-
C:\Windows\system32\taskeng.exetaskeng.exe {3E0C2BC4-7F45-46F4-8E27-BC3661EFB620} S-1-5-18:NT AUTHORITY\System:Service:1⤵
- Suspicious use of WriteProcessMemory
PID:1476 -
C:\Windows\system32\regsvr32.exeregsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\IEUDLK.CJF.dll"2⤵
- Suspicious use of WriteProcessMemory
PID:1144 -
C:\Windows\SysWOW64\regsvr32.exe-s "C:\Users\Admin\AppData\Local\Temp\IEUDLK.CJF.dll"3⤵
- Loads dropped DLL
PID:1620
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
-
MD5
124b74398650933bb47190a8cdee8d1b
SHA1ad6a4e26763d25a4c101a3eabd98bcf105eb79b0
SHA2560158409723e1ffc9ce2ff7db5c5721434dfcf49d91e7457a01d609ec404c85f6
SHA51277d4edd8280d2cfeab55d36a008d6abdd50b7bc6af70a8943b42bdbb61c4838719e4855bb1d72b859e8ecbc390b2113d2e541047b8881f2bcc51d761967643d6
-
MD5
124b74398650933bb47190a8cdee8d1b
SHA1ad6a4e26763d25a4c101a3eabd98bcf105eb79b0
SHA2560158409723e1ffc9ce2ff7db5c5721434dfcf49d91e7457a01d609ec404c85f6
SHA51277d4edd8280d2cfeab55d36a008d6abdd50b7bc6af70a8943b42bdbb61c4838719e4855bb1d72b859e8ecbc390b2113d2e541047b8881f2bcc51d761967643d6