Analysis
-
max time kernel
131s -
max time network
8s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
17-12-2020 16:51
Static task
static1
Behavioral task
behavioral1
Sample
gaefvup.dll
Resource
win7v20201028
General
-
Target
gaefvup.dll
-
Size
255KB
-
MD5
d3651962f3f65ae2d14b1b3fb8da6602
-
SHA1
af56654a48d3d23176a7ac42a4b8b83bd3222baa
-
SHA256
772f8d1f0fa5a639f57dd886343e1567aa64e9ead5589508154a525a97e79f38
-
SHA512
5c123d79b423b19d8249af74ac542260c491ec6dea3ed8d85af795dadb3d4910ae5412da17188d4f8c02f37201c9afbe935631d752ddffe4eb9b14df7356da4b
Malware Config
Extracted
qakbot
abc101
1606294013
98.115.243.237:443
78.101.21.73:443
185.163.221.77:2222
2.51.246.190:995
2.50.2.11:995
175.137.79.81:443
42.201.228.106:995
185.246.9.69:995
81.133.234.36:2222
24.205.42.241:443
73.239.229.107:995
102.185.58.126:443
173.245.152.231:443
105.101.216.210:443
89.137.195.167:995
174.76.21.134:443
41.238.217.126:6881
47.138.204.19:443
79.166.83.103:2222
92.154.83.96:1194
83.110.111.159:443
203.106.195.67:443
68.225.60.77:995
90.174.217.251:2222
73.166.10.38:995
83.110.226.174:443
109.177.80.59:2222
174.29.203.226:993
122.59.40.31:995
47.22.148.6:443
196.204.207.111:443
105.198.236.99:443
185.105.131.233:443
200.75.136.78:443
2.86.41.23:2222
83.196.50.197:2222
78.96.199.79:443
86.99.134.235:2222
109.106.69.138:2222
59.99.36.38:443
72.204.242.138:443
103.76.160.110:443
59.99.38.33:443
121.58.199.24:443
216.201.162.158:443
173.197.22.90:2222
217.165.2.92:995
83.110.13.182:2222
76.181.122.120:443
94.141.3.242:443
174.62.13.151:443
89.137.211.239:443
2.50.110.49:2078
108.160.123.244:443
120.150.218.241:995
50.244.112.106:443
2.7.202.106:2222
190.220.8.10:995
89.136.39.108:443
73.166.10.38:443
85.60.132.8:2087
87.27.110.90:2222
198.2.35.226:2222
84.78.128.76:2078
120.150.34.178:443
24.201.61.153:2078
217.128.117.218:2222
217.133.54.140:32100
156.205.56.98:995
98.26.50.62:995
172.114.116.226:995
109.209.94.165:2222
72.190.101.70:443
92.59.35.196:2083
37.107.82.136:443
85.132.36.111:2222
174.76.11.123:995
219.74.176.225:443
98.118.156.172:443
94.59.120.142:443
72.29.181.78:2078
178.223.20.246:995
83.110.19.27:443
189.231.173.158:443
45.63.107.192:2222
217.165.1.34:443
149.28.98.196:995
94.52.160.116:443
149.28.99.97:443
45.77.193.83:443
197.161.154.132:443
149.28.99.97:2222
45.63.107.192:995
156.194.226.251:995
42.118.247.172:443
149.28.98.196:2222
105.198.236.101:443
149.28.98.196:443
92.177.56.164:2222
41.97.97.120:443
24.152.219.253:995
37.116.152.122:2222
216.215.77.18:2078
24.122.0.90:443
68.192.50.231:443
73.55.254.225:443
110.53.221.119:443
50.244.112.90:443
178.87.29.72:443
201.152.196.4:443
2.49.219.254:22
71.126.139.251:443
47.44.217.98:443
75.136.40.155:443
93.149.253.201:2222
96.225.88.23:443
166.62.183.139:2078
45.118.65.34:443
50.244.112.10:995
93.146.133.102:2222
96.21.251.127:2222
58.179.21.147:995
90.101.117.122:2222
184.98.97.227:995
77.76.9.40:443
71.10.43.79:443
59.98.96.143:443
86.122.248.164:2222
101.185.175.169:2222
71.187.170.235:443
92.59.35.196:2222
103.102.100.78:2222
188.52.193.110:995
90.175.88.99:2222
37.107.111.46:995
96.237.141.134:995
78.97.3.6:443
2.50.143.154:2078
83.110.220.105:443
109.205.204.229:2222
90.101.62.189:2222
41.228.220.155:443
79.112.110.20:443
190.128.215.174:443
45.32.165.134:443
45.32.162.253:443
140.82.27.132:443
188.26.243.119:443
79.113.247.80:443
73.248.120.240:443
Signatures
-
Loads dropped DLL 1 IoCs
Processes:
regsvr32.exepid process 760 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 2044 rundll32.exe 2044 rundll32.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
rundll32.exepid process 2044 rundll32.exe -
Suspicious use of WriteProcessMemory 29 IoCs
Processes:
rundll32.exerundll32.exeexplorer.exetaskeng.exeregsvr32.exedescription pid process target process PID 1744 wrote to memory of 2044 1744 rundll32.exe rundll32.exe PID 1744 wrote to memory of 2044 1744 rundll32.exe rundll32.exe PID 1744 wrote to memory of 2044 1744 rundll32.exe rundll32.exe PID 1744 wrote to memory of 2044 1744 rundll32.exe rundll32.exe PID 1744 wrote to memory of 2044 1744 rundll32.exe rundll32.exe PID 1744 wrote to memory of 2044 1744 rundll32.exe rundll32.exe PID 1744 wrote to memory of 2044 1744 rundll32.exe rundll32.exe PID 2044 wrote to memory of 1796 2044 rundll32.exe explorer.exe PID 2044 wrote to memory of 1796 2044 rundll32.exe explorer.exe PID 2044 wrote to memory of 1796 2044 rundll32.exe explorer.exe PID 2044 wrote to memory of 1796 2044 rundll32.exe explorer.exe PID 2044 wrote to memory of 1796 2044 rundll32.exe explorer.exe PID 2044 wrote to memory of 1796 2044 rundll32.exe explorer.exe PID 1796 wrote to memory of 344 1796 explorer.exe schtasks.exe PID 1796 wrote to memory of 344 1796 explorer.exe schtasks.exe PID 1796 wrote to memory of 344 1796 explorer.exe schtasks.exe PID 1796 wrote to memory of 344 1796 explorer.exe schtasks.exe PID 1120 wrote to memory of 1720 1120 taskeng.exe regsvr32.exe PID 1120 wrote to memory of 1720 1120 taskeng.exe regsvr32.exe PID 1120 wrote to memory of 1720 1120 taskeng.exe regsvr32.exe PID 1120 wrote to memory of 1720 1120 taskeng.exe regsvr32.exe PID 1120 wrote to memory of 1720 1120 taskeng.exe regsvr32.exe PID 1720 wrote to memory of 760 1720 regsvr32.exe regsvr32.exe PID 1720 wrote to memory of 760 1720 regsvr32.exe regsvr32.exe PID 1720 wrote to memory of 760 1720 regsvr32.exe regsvr32.exe PID 1720 wrote to memory of 760 1720 regsvr32.exe regsvr32.exe PID 1720 wrote to memory of 760 1720 regsvr32.exe regsvr32.exe PID 1720 wrote to memory of 760 1720 regsvr32.exe regsvr32.exe PID 1720 wrote to memory of 760 1720 regsvr32.exe regsvr32.exe
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\gaefvup.dll,#11⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\gaefvup.dll,#12⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe3⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn klhfxqj /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\gaefvup.dll\"" /SC ONCE /Z /ST 16:49 /ET 17:014⤵
- Creates scheduled task(s)
-
C:\Windows\system32\taskeng.exetaskeng.exe {5D311F18-D70E-42E9-8E2A-16BA81045A21} S-1-5-18:NT AUTHORITY\System:Service:1⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\regsvr32.exeregsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\gaefvup.dll"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\regsvr32.exe-s "C:\Users\Admin\AppData\Local\Temp\gaefvup.dll"3⤵
- Loads dropped DLL
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\gaefvup.dllMD5
a011073b567e88385f9d2ce1b701c2f3
SHA1a8acfc01b5abfbc41f2d83cfc5f033db47e07266
SHA256cb88327ba2f0055799fffeb3b1be3c436951a206b1a85f3e39ba875e7a2b27c1
SHA512537fdfb95129c79d29c61d2d3970533f355740600b63569b34cbf032a96af84db741b6362e8fc266539cf39b723532bf33d6b4cb31392d48270f9981d6ac8e1e
-
\Users\Admin\AppData\Local\Temp\gaefvup.dllMD5
a011073b567e88385f9d2ce1b701c2f3
SHA1a8acfc01b5abfbc41f2d83cfc5f033db47e07266
SHA256cb88327ba2f0055799fffeb3b1be3c436951a206b1a85f3e39ba875e7a2b27c1
SHA512537fdfb95129c79d29c61d2d3970533f355740600b63569b34cbf032a96af84db741b6362e8fc266539cf39b723532bf33d6b4cb31392d48270f9981d6ac8e1e
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memory/344-6-0x0000000000000000-mapping.dmp
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memory/760-10-0x0000000000000000-mapping.dmp
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memory/1720-8-0x0000000000000000-mapping.dmp
-
memory/1796-3-0x00000000000A0000-0x00000000000A2000-memory.dmpFilesize
8KB
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memory/1796-5-0x0000000000000000-mapping.dmp
-
memory/1796-7-0x0000000000080000-0x00000000000A0000-memory.dmpFilesize
128KB
-
memory/2044-2-0x0000000000000000-mapping.dmp
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memory/2044-4-0x0000000000270000-0x0000000000290000-memory.dmpFilesize
128KB