Analysis
-
max time kernel
131s -
max time network
118s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
25-01-2022 13:52
Static task
static1
Behavioral task
behavioral1
Sample
yn.dll
Resource
win7-en-20211208
General
-
Target
yn.dll
-
Size
1.1MB
-
MD5
557d5118e28207d90e80f2dd90e23bfb
-
SHA1
b871a809f1ea0c6c43e92c3479d1bde6157d939f
-
SHA256
532fbe194acb281ef6be139e0724a46d9936606b190b62bc57ba0859b2b61b8c
-
SHA512
8461d347c2da986b7222e076bbbc97c6d43577a48cf31b4255090ad665b72330ce1ce825b8e248e9c7e4c14b8541c2649dd2d39d4e8a63e58bb1056e89bad0c6
Malware Config
Extracted
qakbot
403.10
tr
1643025272
103.143.8.71:6881
37.210.172.200:2222
136.143.11.232:443
190.73.3.148:2222
78.101.147.76:61202
82.152.39.39:443
65.100.174.110:995
65.100.174.110:443
111.125.245.116:995
117.248.109.38:21
31.215.99.178:443
103.142.10.177:443
39.49.110.129:995
86.97.246.244:1194
68.204.7.158:443
217.128.93.27:2222
144.86.28.125:443
94.59.253.222:2222
120.150.218.241:995
185.249.85.209:443
69.14.172.24:443
94.200.181.154:995
182.191.92.203:995
24.95.61.62:443
86.97.246.244:2222
89.137.52.44:443
70.163.1.219:443
220.255.25.1:2222
24.178.196.158:2222
103.139.242.30:993
96.80.109.57:995
209.210.95.228:32100
180.233.150.134:995
149.135.101.20:443
38.70.253.226:2222
24.222.20.254:443
83.110.2.97:443
78.87.44.54:995
86.108.46.251:443
74.15.2.252:2222
102.65.38.67:443
37.203.225.248:443
75.139.7.190:2083
24.53.49.240:443
80.14.196.176:2222
94.60.254.81:443
86.98.32.228:443
130.164.129.3:443
176.67.56.94:443
31.167.160.170:443
31.35.28.29:443
32.221.231.1:443
71.74.12.34:443
96.21.251.127:2222
41.86.42.158:995
41.228.22.180:443
93.48.80.198:995
45.9.20.200:443
86.98.47.119:61200
96.246.158.154:995
89.114.156.182:995
67.209.195.198:443
75.156.151.34:443
89.101.97.139:443
182.56.101.61:443
128.106.122.39:443
31.215.226.115:2222
76.25.142.196:443
173.21.10.71:2222
142.186.63.108:2222
60.54.102.15:443
73.151.236.31:443
73.136.32.202:443
5.32.41.46:443
78.180.191.206:995
109.12.111.14:443
40.134.247.125:995
31.215.99.6:443
217.164.76.107:2078
80.6.192.58:443
63.143.92.99:995
27.5.4.194:2078
86.133.23.70:443
116.86.26.140:995
90.8.56.248:2222
101.50.120.112:995
67.165.206.193:993
100.1.119.41:443
31.215.29.238:443
186.64.87.207:443
190.206.211.182:443
218.101.110.3:995
103.139.242.30:990
136.232.34.70:443
73.67.152.98:2222
47.158.25.67:443
187.189.86.168:443
72.252.201.34:995
72.252.201.34:990
70.51.153.245:2222
108.4.67.252:443
70.45.174.173:443
72.252.201.34:993
217.165.109.189:32101
114.79.148.170:443
197.89.105.165:443
182.176.180.73:443
75.188.35.168:443
27.223.92.142:995
200.75.131.234:443
71.163.110.53:995
75.168.192.223:2222
107.77.232.51:443
201.172.31.135:80
83.110.98.231:995
96.37.113.36:993
78.191.27.236:995
78.96.235.245:443
23.229.117.237:443
91.185.131.89:61202
76.169.147.192:32103
114.143.84.25:61202
92.98.33.251:995
23.233.146.92:443
75.169.58.229:32100
184.100.174.73:443
50.237.134.22:995
36.234.184.238:995
65.100.174.110:8443
59.12.216.39:443
103.139.242.30:22
190.45.79.111:443
176.24.150.197:443
106.51.48.170:50001
111.119.252.178:995
73.59.201.174:443
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salt
jHxastDcds)oMc=jvh7wdUhxcsdt2
Signatures
-
Loads dropped DLL 1 IoCs
Processes:
regsvr32.exepid process 1048 regsvr32.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
-
Modifies data under HKEY_USERS 10 IoCs
Processes:
explorer.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Wjriyxdrgykrob explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Wjriyxdrgykrob\901be9d2 = 66372dd9b93667f45c605824541e93e144c238d367 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Wjriyxdrgykrob\55afc13d = a24dde6be45b5df0db5d75fcce5c85c78b58c61bdf931988cb0fa776a168e249033e60 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Wjriyxdrgykrob\1f797e85 = 65b6c1266b5e9662bf6e4f760d109c119eb888cba78a6235e992de13c3c3f3039b148e7687cf7e5da308b996cbb770541d6962f1aaac6ceb8fb0244cc22157b42f001c23d66fbb610156150e58d3063b2184 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Wjriyxdrgykrob\1f797e85 = 65b6d6266b5ea34fb2d87eb7e7730a30090fd2d37c9893776f4453499511fad73ee80e0553f3225f03f7444785879c54adae31aca7d71a57ac5d15b642 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Wjriyxdrgykrob\2ae6aecb = f9621b060064c2c9e1277051e090a296f955c0a6d70615276ae70fd1f62583a55c0ccd98fca40714c08e8cf3d5c6e1abb722e1c00e881f5e715ea46ac9576aaa50980ed149599e94fe6b6231721cea0f07234fabd519931ff857f4c17e2f3d4174d7143b1939a4924987573ff312c10763a50c0c0e0d18f4a6f96661902d36c379b2b92cc949234a1d0ee1bda6b437234d9eb18a0df4d26f1e explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Wjriyxdrgykrob\28a78eb7 = 2461b332a7b8b6c986b0b44bd902e442d26e52457dfb1cb68506f979 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Wjriyxdrgykrob\ed13a658 = 6956613fd1cf782b4866ab4e8fa9f9ff67f420587d09b7e5c003deecd6de95b3c7c5c2b19a96716a87973bf2620256350b4c24448bf50d41539e5bc5c3a8410455c1 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Wjriyxdrgykrob\925ac9ae = 3caf7d2b85c34853b1e1f8341d9948e3baadf9a6a141b72dfe673418f662626364069ef2735f457b2d7337d454e696c574c551992c19ebc31d8da49a3cfa42ef5af479cc5506938a99e427375c39a655278413f70ac1 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Wjriyxdrgykrob\60301173 = 34bc639b40a3cbccf61be1ef88c55de35befb490af0ec44cbcf587b212e8517d0ff75c190d7ba3a58506fdaee429ea4c4fc58d2248 explorer.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
regsvr32.exeregsvr32.exepid process 1656 regsvr32.exe 1048 regsvr32.exe -
Suspicious behavior: MapViewOfSection 2 IoCs
Processes:
regsvr32.exeregsvr32.exepid process 1656 regsvr32.exe 1048 regsvr32.exe -
Suspicious use of WriteProcessMemory 43 IoCs
Processes:
regsvr32.exeregsvr32.exeexplorer.exetaskeng.exeregsvr32.exeregsvr32.exeexplorer.exedescription pid process target process PID 1628 wrote to memory of 1656 1628 regsvr32.exe regsvr32.exe PID 1628 wrote to memory of 1656 1628 regsvr32.exe regsvr32.exe PID 1628 wrote to memory of 1656 1628 regsvr32.exe regsvr32.exe PID 1628 wrote to memory of 1656 1628 regsvr32.exe regsvr32.exe PID 1628 wrote to memory of 1656 1628 regsvr32.exe regsvr32.exe PID 1628 wrote to memory of 1656 1628 regsvr32.exe regsvr32.exe PID 1628 wrote to memory of 1656 1628 regsvr32.exe regsvr32.exe PID 1656 wrote to memory of 1512 1656 regsvr32.exe explorer.exe PID 1656 wrote to memory of 1512 1656 regsvr32.exe explorer.exe PID 1656 wrote to memory of 1512 1656 regsvr32.exe explorer.exe PID 1656 wrote to memory of 1512 1656 regsvr32.exe explorer.exe PID 1656 wrote to memory of 1512 1656 regsvr32.exe explorer.exe PID 1656 wrote to memory of 1512 1656 regsvr32.exe explorer.exe PID 1512 wrote to memory of 432 1512 explorer.exe schtasks.exe PID 1512 wrote to memory of 432 1512 explorer.exe schtasks.exe PID 1512 wrote to memory of 432 1512 explorer.exe schtasks.exe PID 1512 wrote to memory of 432 1512 explorer.exe schtasks.exe PID 1256 wrote to memory of 1096 1256 taskeng.exe regsvr32.exe PID 1256 wrote to memory of 1096 1256 taskeng.exe regsvr32.exe PID 1256 wrote to memory of 1096 1256 taskeng.exe regsvr32.exe PID 1256 wrote to memory of 1096 1256 taskeng.exe regsvr32.exe PID 1256 wrote to memory of 1096 1256 taskeng.exe regsvr32.exe PID 1096 wrote to memory of 1048 1096 regsvr32.exe regsvr32.exe PID 1096 wrote to memory of 1048 1096 regsvr32.exe regsvr32.exe PID 1096 wrote to memory of 1048 1096 regsvr32.exe regsvr32.exe PID 1096 wrote to memory of 1048 1096 regsvr32.exe regsvr32.exe PID 1096 wrote to memory of 1048 1096 regsvr32.exe regsvr32.exe PID 1096 wrote to memory of 1048 1096 regsvr32.exe regsvr32.exe PID 1096 wrote to memory of 1048 1096 regsvr32.exe regsvr32.exe PID 1048 wrote to memory of 1580 1048 regsvr32.exe explorer.exe PID 1048 wrote to memory of 1580 1048 regsvr32.exe explorer.exe PID 1048 wrote to memory of 1580 1048 regsvr32.exe explorer.exe PID 1048 wrote to memory of 1580 1048 regsvr32.exe explorer.exe PID 1048 wrote to memory of 1580 1048 regsvr32.exe explorer.exe PID 1048 wrote to memory of 1580 1048 regsvr32.exe explorer.exe PID 1580 wrote to memory of 1888 1580 explorer.exe reg.exe PID 1580 wrote to memory of 1888 1580 explorer.exe reg.exe PID 1580 wrote to memory of 1888 1580 explorer.exe reg.exe PID 1580 wrote to memory of 1888 1580 explorer.exe reg.exe PID 1580 wrote to memory of 1720 1580 explorer.exe reg.exe PID 1580 wrote to memory of 1720 1580 explorer.exe reg.exe PID 1580 wrote to memory of 1720 1580 explorer.exe reg.exe PID 1580 wrote to memory of 1720 1580 explorer.exe reg.exe
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\yn.dll1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\yn.dll2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn foqyfqx /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\yn.dll\"" /SC ONCE /Z /ST 14:54 /ET 15:064⤵
- Creates scheduled task(s)
-
C:\Windows\system32\taskeng.exetaskeng.exe {B6A7EEBB-7173-4583-B1EF-35B9C50FA4E9} S-1-5-18:NT AUTHORITY\System:Service:1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\regsvr32.exeregsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\yn.dll"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe-s "C:\Users\Admin\AppData\Local\Temp\yn.dll"3⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe4⤵
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\reg.exeC:\Windows\system32\reg.exe ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /t REG_DWORD /v "C:\ProgramData\Microsoft\Zeufuboozpil" /d "0"5⤵
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C:\Windows\system32\reg.exeC:\Windows\system32\reg.exe ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /t REG_DWORD /v "C:\Users\Admin\AppData\Roaming\Microsoft\Caynhewzff" /d "0"5⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\yn.dllMD5
557d5118e28207d90e80f2dd90e23bfb
SHA1b871a809f1ea0c6c43e92c3479d1bde6157d939f
SHA256532fbe194acb281ef6be139e0724a46d9936606b190b62bc57ba0859b2b61b8c
SHA5128461d347c2da986b7222e076bbbc97c6d43577a48cf31b4255090ad665b72330ce1ce825b8e248e9c7e4c14b8541c2649dd2d39d4e8a63e58bb1056e89bad0c6
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\??\PIPE\wkssvcMD5
d41d8cd98f00b204e9800998ecf8427e
SHA1da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e
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\Users\Admin\AppData\Local\Temp\yn.dllMD5
557d5118e28207d90e80f2dd90e23bfb
SHA1b871a809f1ea0c6c43e92c3479d1bde6157d939f
SHA256532fbe194acb281ef6be139e0724a46d9936606b190b62bc57ba0859b2b61b8c
SHA5128461d347c2da986b7222e076bbbc97c6d43577a48cf31b4255090ad665b72330ce1ce825b8e248e9c7e4c14b8541c2649dd2d39d4e8a63e58bb1056e89bad0c6
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memory/1512-59-0x00000000000B0000-0x00000000000B2000-memory.dmpFilesize
8KB
-
memory/1512-61-0x0000000074CC1000-0x0000000074CC3000-memory.dmpFilesize
8KB
-
memory/1512-62-0x0000000000080000-0x00000000000A1000-memory.dmpFilesize
132KB
-
memory/1580-71-0x00000000000E0000-0x0000000000101000-memory.dmpFilesize
132KB
-
memory/1628-55-0x000007FEFC2D1000-0x000007FEFC2D3000-memory.dmpFilesize
8KB
-
memory/1656-56-0x0000000075801000-0x0000000075803000-memory.dmpFilesize
8KB
-
memory/1656-57-0x0000000000110000-0x0000000000111000-memory.dmpFilesize
4KB
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memory/1656-58-0x0000000010000000-0x0000000010121000-memory.dmpFilesize
1.1MB