Analysis
-
max time kernel
122s -
max time network
8s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
02-02-2021 13:34
Static task
static1
Behavioral task
behavioral1
Sample
ellth1.dll
Resource
win7v20201028
General
-
Target
ellth1.dll
-
Size
565KB
-
MD5
d095925bb57851b311351b95e8d95457
-
SHA1
a2816ed524260b45c62d9c1efe938af952d966ab
-
SHA256
d4c575a5d522c8e2cc79685a526ce185d021aef9299c019b0ac52c4e10769ccf
-
SHA512
ce9cc91ab9c5a1ee97d17a323536b5a93ef323274084e4f2c0d371ac89b12c27256faa03c46254cae96088b7b96b78dd10a242f9ed561ee9993a274992efd38e
Malware Config
Extracted
qakbot
krk01
1611569149
31.5.21.66:995
89.3.198.238:443
202.188.138.162:443
188.24.128.253:443
175.141.219.71:443
151.60.15.183:443
184.189.122.72:443
80.227.5.70:443
140.82.49.12:443
89.211.241.100:995
81.97.154.100:443
77.27.174.49:995
92.154.83.96:2078
42.3.8.54:443
71.187.170.235:443
46.153.36.53:995
71.182.142.63:443
105.186.102.16:443
50.244.112.106:443
78.63.226.32:443
85.132.36.111:2222
68.186.192.69:443
75.136.40.155:443
68.225.60.77:995
144.139.47.206:443
79.129.121.81:995
98.121.187.78:443
75.67.192.125:443
216.201.162.158:443
2.50.2.216:443
75.136.26.147:443
84.72.35.226:443
172.78.30.215:443
105.198.236.99:443
83.110.102.100:443
193.248.221.184:2222
190.85.91.154:443
96.37.113.36:993
83.110.108.181:2222
88.233.91.244:443
95.77.223.148:443
207.246.77.75:2222
86.236.77.68:2222
207.246.77.75:443
45.63.107.192:995
77.211.30.202:995
149.28.99.97:443
207.246.77.75:8443
149.28.98.196:2222
207.246.116.237:995
207.246.116.237:8443
149.28.99.97:995
207.246.77.75:995
207.246.116.237:2222
45.77.115.208:443
45.32.211.207:995
149.28.101.90:8443
149.28.101.90:443
149.28.99.97:2222
172.115.177.204:2222
144.202.38.185:995
207.246.116.237:443
149.28.98.196:443
144.202.38.185:443
149.28.101.90:995
45.32.211.207:2222
45.32.211.207:443
45.32.211.207:8443
149.28.98.196:995
144.202.38.185:2222
45.63.107.192:443
149.28.101.90:2222
45.63.107.192:2222
45.77.115.208:2222
196.151.252.84:443
105.198.236.101:443
82.76.47.211:443
45.77.115.208:995
45.77.115.208:8443
213.60.147.140:443
92.59.35.196:2222
47.22.148.6:443
203.106.195.67:443
202.185.50.15:443
173.70.165.101:995
50.240.77.238:22
86.98.93.124:2078
172.87.157.235:3389
197.45.110.165:995
76.25.142.196:443
106.51.52.111:443
188.25.63.105:443
83.110.12.140:2222
64.121.114.87:443
50.29.166.232:995
217.133.54.140:32100
122.148.156.131:995
173.21.10.71:2222
45.46.53.140:2222
67.6.91.75:443
47.156.65.184:443
76.111.128.194:443
75.118.1.141:443
65.27.228.247:443
71.74.12.34:443
74.68.144.202:443
98.240.24.57:443
47.196.192.184:443
71.14.110.199:443
71.197.126.250:443
24.253.38.139:993
197.161.154.132:443
80.7.129.64:995
47.208.8.187:443
89.137.211.239:995
86.220.60.133:2222
94.53.92.42:443
78.97.207.104:443
106.250.150.98:443
67.8.103.21:443
41.39.134.183:443
2.50.161.6:2222
96.19.117.140:443
199.19.117.131:443
104.37.20.207:995
216.150.207.100:2222
189.222.111.204:443
73.216.60.90:2222
69.123.179.70:443
189.237.7.9:443
89.137.221.232:443
109.12.111.14:443
125.63.101.62:443
2.7.69.217:2222
89.211.247.202:443
201.130.149.43:995
186.155.151.167:443
201.127.37.219:443
151.205.102.42:443
189.210.115.207:443
97.69.160.4:2222
72.240.200.181:2222
72.252.201.69:443
172.87.134.226:995
209.210.187.52:995
209.210.187.52:443
108.46.145.30:443
24.229.150.54:995
186.84.90.232:443
80.11.5.65:2222
Signatures
-
Loads dropped DLL 1 IoCs
Processes:
regsvr32.exepid process 544 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 2000 rundll32.exe 2000 rundll32.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
rundll32.exepid process 2000 rundll32.exe -
Suspicious use of WriteProcessMemory 29 IoCs
Processes:
rundll32.exerundll32.exeexplorer.exetaskeng.exeregsvr32.exedescription pid process target process PID 292 wrote to memory of 2000 292 rundll32.exe rundll32.exe PID 292 wrote to memory of 2000 292 rundll32.exe rundll32.exe PID 292 wrote to memory of 2000 292 rundll32.exe rundll32.exe PID 292 wrote to memory of 2000 292 rundll32.exe rundll32.exe PID 292 wrote to memory of 2000 292 rundll32.exe rundll32.exe PID 292 wrote to memory of 2000 292 rundll32.exe rundll32.exe PID 292 wrote to memory of 2000 292 rundll32.exe rundll32.exe PID 2000 wrote to memory of 876 2000 rundll32.exe explorer.exe PID 2000 wrote to memory of 876 2000 rundll32.exe explorer.exe PID 2000 wrote to memory of 876 2000 rundll32.exe explorer.exe PID 2000 wrote to memory of 876 2000 rundll32.exe explorer.exe PID 2000 wrote to memory of 876 2000 rundll32.exe explorer.exe PID 2000 wrote to memory of 876 2000 rundll32.exe explorer.exe PID 876 wrote to memory of 848 876 explorer.exe schtasks.exe PID 876 wrote to memory of 848 876 explorer.exe schtasks.exe PID 876 wrote to memory of 848 876 explorer.exe schtasks.exe PID 876 wrote to memory of 848 876 explorer.exe schtasks.exe PID 1348 wrote to memory of 748 1348 taskeng.exe regsvr32.exe PID 1348 wrote to memory of 748 1348 taskeng.exe regsvr32.exe PID 1348 wrote to memory of 748 1348 taskeng.exe regsvr32.exe PID 1348 wrote to memory of 748 1348 taskeng.exe regsvr32.exe PID 1348 wrote to memory of 748 1348 taskeng.exe regsvr32.exe PID 748 wrote to memory of 544 748 regsvr32.exe regsvr32.exe PID 748 wrote to memory of 544 748 regsvr32.exe regsvr32.exe PID 748 wrote to memory of 544 748 regsvr32.exe regsvr32.exe PID 748 wrote to memory of 544 748 regsvr32.exe regsvr32.exe PID 748 wrote to memory of 544 748 regsvr32.exe regsvr32.exe PID 748 wrote to memory of 544 748 regsvr32.exe regsvr32.exe PID 748 wrote to memory of 544 748 regsvr32.exe regsvr32.exe
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\ellth1.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:292 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\ellth1.dll,#12⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2000 -
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe3⤵
- Suspicious use of WriteProcessMemory
PID:876 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn nucegap /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\ellth1.dll\"" /SC ONCE /Z /ST 13:40 /ET 13:524⤵
- Creates scheduled task(s)
PID:848
-
C:\Windows\system32\taskeng.exetaskeng.exe {D61F0B50-25EB-4411-8F14-82CD5A78CADA} S-1-5-18:NT AUTHORITY\System:Service:1⤵
- Suspicious use of WriteProcessMemory
PID:1348 -
C:\Windows\system32\regsvr32.exeregsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\ellth1.dll"2⤵
- Suspicious use of WriteProcessMemory
PID:748 -
C:\Windows\SysWOW64\regsvr32.exe-s "C:\Users\Admin\AppData\Local\Temp\ellth1.dll"3⤵
- Loads dropped DLL
PID:544
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\ellth1.dllMD5
8bac227baa397ac730b4c65c19a79fe5
SHA1f8735861ae35590e841daf67b43787a054339435
SHA256bf3872c7e85d2f9d330aa6dc52f54e4003fadbed386c75fe3f22713269302e1b
SHA51272b7f7c54436f38e6baa71f329e4b79b63e3987f6f61322a0128356afd23ffe64d126cea43385cfeba02d6971ce293ad35c8236236c3073495372ac2ca56de80
-
\Users\Admin\AppData\Local\Temp\ellth1.dllMD5
8bac227baa397ac730b4c65c19a79fe5
SHA1f8735861ae35590e841daf67b43787a054339435
SHA256bf3872c7e85d2f9d330aa6dc52f54e4003fadbed386c75fe3f22713269302e1b
SHA51272b7f7c54436f38e6baa71f329e4b79b63e3987f6f61322a0128356afd23ffe64d126cea43385cfeba02d6971ce293ad35c8236236c3073495372ac2ca56de80
-
memory/544-15-0x0000000000000000-mapping.dmp
-
memory/748-13-0x000007FEFC4E1000-0x000007FEFC4E3000-memory.dmpFilesize
8KB
-
memory/748-12-0x0000000000000000-mapping.dmp
-
memory/848-10-0x0000000000000000-mapping.dmp
-
memory/876-9-0x0000000000130000-0x0000000000165000-memory.dmpFilesize
212KB
-
memory/876-11-0x0000000000130000-0x0000000000165000-memory.dmpFilesize
212KB
-
memory/876-8-0x0000000075281000-0x0000000075283000-memory.dmpFilesize
8KB
-
memory/876-6-0x0000000000000000-mapping.dmp
-
memory/2000-2-0x0000000000000000-mapping.dmp
-
memory/2000-5-0x00000000000C0000-0x00000000000C1000-memory.dmpFilesize
4KB
-
memory/2000-4-0x00000000754A0000-0x00000000754D5000-memory.dmpFilesize
212KB
-
memory/2000-3-0x0000000076861000-0x0000000076863000-memory.dmpFilesize
8KB