Analysis
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max time kernel
145s -
max time network
122s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
22-12-2021 17:30
Static task
static1
Behavioral task
behavioral1
Sample
a695f24e4266187d70e4513e8b41b6e63c18cdb8cb540f1883192cdd746ec203.dll
Resource
win7-en-20211208
General
-
Target
a695f24e4266187d70e4513e8b41b6e63c18cdb8cb540f1883192cdd746ec203.dll
-
Size
1.8MB
-
MD5
e8de1a621f8743238c9ce96cd91f58b8
-
SHA1
bc579c3ac95dc28a4575b6c27da4718763989509
-
SHA256
a695f24e4266187d70e4513e8b41b6e63c18cdb8cb540f1883192cdd746ec203
-
SHA512
97404dc8aa5701ae3189a8822876c14da81b0876e39c17050d871e774bbdc93b764f91bc61e9cffb1f292bb06324bcd8de1870ae5b89bc33d974b4af1b3a7c83
Malware Config
Extracted
qakbot
403.10
cullinan
1640170781
14.96.108.245:61202
182.191.92.203:995
136.232.34.70:443
93.48.80.198:995
140.82.49.12:443
32.221.229.7:443
24.152.219.253:995
31.35.28.29:443
96.37.113.36:993
190.39.205.165:443
79.173.195.234:443
39.49.66.100:995
103.139.242.30:22
79.167.192.206:995
45.9.20.200:2211
24.95.61.62:443
37.210.226.125:61202
103.139.242.30:995
70.163.1.219:443
103.143.8.71:6881
76.169.147.192:32103
136.143.11.232:443
63.153.187.104:443
24.53.49.240:443
94.200.181.154:995
149.135.101.20:443
67.209.195.198:443
209.210.95.228:32100
96.80.109.57:995
80.14.196.176:2222
38.70.253.226:2222
24.222.20.254:443
102.65.38.67:443
217.128.93.27:2222
106.51.48.170:50001
218.101.110.3:995
82.152.39.39:443
24.178.196.158:2222
74.15.2.252:2222
103.142.10.177:443
217.165.123.47:61200
89.101.97.139:443
120.150.218.241:995
117.248.109.38:21
190.73.3.148:2222
105.106.30.144:443
186.64.87.213:443
96.21.251.127:2222
111.125.245.116:995
182.176.180.73:443
188.159.111.126:443
178.153.86.181:443
31.215.70.105:443
73.151.236.31:443
121.175.104.13:32100
182.56.66.96:443
41.228.22.180:443
217.164.247.241:2222
103.139.242.30:990
173.21.10.71:2222
59.6.7.83:61200
121.175.104.13:443
76.25.142.196:443
71.74.12.34:443
94.60.254.81:443
201.172.31.95:80
187.162.59.232:995
65.100.174.110:8443
100.1.119.41:443
70.51.134.181:2222
79.160.207.214:443
40.134.247.125:995
70.224.68.92:443
105.198.236.99:995
173.25.166.81:443
176.205.152.44:443
108.4.67.252:443
109.12.111.14:443
24.55.112.61:443
50.237.134.22:995
189.174.46.65:995
75.188.35.168:443
187.189.86.168:443
114.79.148.170:443
176.24.150.197:443
95.5.133.68:995
86.98.52.117:443
200.54.14.34:80
72.252.201.34:995
103.139.242.30:443
103.139.242.30:465
103.139.242.30:993
78.101.89.174:2222
78.101.89.174:443
73.5.119.219:443
23.233.146.92:443
89.137.52.44:443
74.5.148.57:443
68.186.192.69:443
50.33.112.74:995
70.93.80.154:995
75.169.58.229:32100
63.143.92.99:995
217.39.100.89:443
46.9.77.245:995
173.71.147.134:995
75.110.250.187:443
185.249.85.205:443
65.100.174.110:443
82.78.212.133:443
83.110.107.123:443
59.88.168.108:443
65.128.74.102:443
67.165.206.193:993
68.204.7.158:443
78.101.82.198:995
80.6.192.58:443
41.97.234.150:995
114.79.145.28:443
188.54.96.91:443
50.238.6.36:443
217.165.11.65:61200
103.143.8.71:995
2.178.67.97:61202
86.198.237.51:2222
88.253.171.236:995
187.172.146.123:443
92.167.4.71:2222
189.30.244.252:995
194.36.28.26:443
84.199.230.66:443
14.96.67.177:443
182.56.57.23:995
87.70.118.51:443
93.48.58.123:2222
69.46.15.180:443
23.82.128.108:443
5.36.7.212:443
200.75.131.234:443
82.77.137.101:995
187.201.90.81:443
201.172.31.95:443
216.238.72.121:443
216.238.71.31:995
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salt
jHxastDcds)oMc=jvh7wdUhxcsdt2
Signatures
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Loads dropped DLL 1 IoCs
Processes:
regsvr32.exepid process 1212 regsvr32.exe -
Drops file in System32 directory 2 IoCs
Processes:
regsvr32.exeregsvr32.exedescription ioc process File opened for modification C:\Windows\System32\CatRoot2\dberr.txt regsvr32.exe File opened for modification C:\Windows\System32\CatRoot2\dberr.txt regsvr32.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Modifies data under HKEY_USERS 10 IoCs
Processes:
explorer.exedescription ioc process Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Mieixerwusobt\9186a8cb = 38547b0d1080cb8ee41e0b4b32e079e885430889fdcce0b103bc4339f851401ca6179311b460d4c8ab58beab04bc922f3695e4b45f48f9ba182a9fd3a32dd3dc939b09f2a5eadd7d6bea45865360af44af9bbbce53424383fc3ab1beecc02416d24769e7f321120377 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Mieixerwusobt\61ad506a = 88e683057eee4185461fa5db8c421ff8e1df42dfc64206efa740cd0396066cae3a0d896d1aa82a3216701a139d76e935746660c13d0d8fee0caf0b92927fd8390ad7e721 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Mieixerwusobt\eecfc73d = 7beed40ab027ea405c1901652152836f4d0a7a56cd3f54810a explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Mieixerwusobt\db501773 = 42b390f56c4c3e0a69f317945737e763d05c250667baca4a3fa8f63e1bf8db37038a8e5a6fed4bf03b9ef55c6a504840ed3731d51dda04a26d47a14c92969863d0cc00fc06540a402f3e7a5a0ff5a50090c96ab9b84212a3b4b4fa2e92663887ed9d2e48cee92ce517d67f5413951ca4295c254c77224232a6b131ef0f1f7e3c explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Mieixerwusobt\d911370f = 7d5055a0bc0f4c21466bb2af794cf414def723cd3d2fc5f6ee5595c8c334c02006e55afd45944ba890ba explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Mieixerwusobt\1ca51fe0 = e9b8509979819fed47666ac7b693ab61ea5cbbf345bf845c4661f15687ac0a84 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Mieixerwusobt\a4197885 = 5d2d96726c9f8897d73eecdc88cf94b1c0970aeb68dab84b38151b4f53 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Mieixerwusobt\63ec7016 = 457c322a6c4e226806fd395d81236e89a98ec7c49b74cf9a045b4002ad explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Mieixerwusobt\eecfc73d = 7beec30ab027df110e8eba1192e1ceb6ac3483af915baf7099e51cb34a9f0903ac9f7ec9246f033d54b0110cbc5d explorer.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Mieixerwusobt explorer.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
regsvr32.exeregsvr32.exepid process 1620 regsvr32.exe 1212 regsvr32.exe -
Suspicious behavior: MapViewOfSection 2 IoCs
Processes:
regsvr32.exeregsvr32.exepid process 1620 regsvr32.exe 1212 regsvr32.exe -
Suspicious use of FindShellTrayWindow 40 IoCs
Processes:
regsvr32.exeregsvr32.exepid process 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1212 regsvr32.exe 1212 regsvr32.exe 1212 regsvr32.exe 1212 regsvr32.exe 1212 regsvr32.exe 1212 regsvr32.exe 1212 regsvr32.exe 1212 regsvr32.exe 1212 regsvr32.exe 1212 regsvr32.exe 1212 regsvr32.exe 1212 regsvr32.exe 1212 regsvr32.exe 1212 regsvr32.exe 1212 regsvr32.exe 1212 regsvr32.exe 1212 regsvr32.exe 1212 regsvr32.exe 1212 regsvr32.exe 1212 regsvr32.exe -
Suspicious use of SendNotifyMessage 20 IoCs
Processes:
regsvr32.exepid process 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe 1620 regsvr32.exe -
Suspicious use of WriteProcessMemory 43 IoCs
Processes:
regsvr32.exeregsvr32.exeexplorer.exetaskeng.exeregsvr32.exeregsvr32.exeexplorer.exedescription pid process target process PID 1668 wrote to memory of 1620 1668 regsvr32.exe regsvr32.exe PID 1668 wrote to memory of 1620 1668 regsvr32.exe regsvr32.exe PID 1668 wrote to memory of 1620 1668 regsvr32.exe regsvr32.exe PID 1668 wrote to memory of 1620 1668 regsvr32.exe regsvr32.exe PID 1668 wrote to memory of 1620 1668 regsvr32.exe regsvr32.exe PID 1668 wrote to memory of 1620 1668 regsvr32.exe regsvr32.exe PID 1668 wrote to memory of 1620 1668 regsvr32.exe regsvr32.exe PID 1620 wrote to memory of 836 1620 regsvr32.exe explorer.exe PID 1620 wrote to memory of 836 1620 regsvr32.exe explorer.exe PID 1620 wrote to memory of 836 1620 regsvr32.exe explorer.exe PID 1620 wrote to memory of 836 1620 regsvr32.exe explorer.exe PID 1620 wrote to memory of 836 1620 regsvr32.exe explorer.exe PID 1620 wrote to memory of 836 1620 regsvr32.exe explorer.exe PID 836 wrote to memory of 1492 836 explorer.exe schtasks.exe PID 836 wrote to memory of 1492 836 explorer.exe schtasks.exe PID 836 wrote to memory of 1492 836 explorer.exe schtasks.exe PID 836 wrote to memory of 1492 836 explorer.exe schtasks.exe PID 1544 wrote to memory of 1252 1544 taskeng.exe regsvr32.exe PID 1544 wrote to memory of 1252 1544 taskeng.exe regsvr32.exe PID 1544 wrote to memory of 1252 1544 taskeng.exe regsvr32.exe PID 1544 wrote to memory of 1252 1544 taskeng.exe regsvr32.exe PID 1544 wrote to memory of 1252 1544 taskeng.exe regsvr32.exe PID 1252 wrote to memory of 1212 1252 regsvr32.exe regsvr32.exe PID 1252 wrote to memory of 1212 1252 regsvr32.exe regsvr32.exe PID 1252 wrote to memory of 1212 1252 regsvr32.exe regsvr32.exe PID 1252 wrote to memory of 1212 1252 regsvr32.exe regsvr32.exe PID 1252 wrote to memory of 1212 1252 regsvr32.exe regsvr32.exe PID 1252 wrote to memory of 1212 1252 regsvr32.exe regsvr32.exe PID 1252 wrote to memory of 1212 1252 regsvr32.exe regsvr32.exe PID 1212 wrote to memory of 1800 1212 regsvr32.exe explorer.exe PID 1212 wrote to memory of 1800 1212 regsvr32.exe explorer.exe PID 1212 wrote to memory of 1800 1212 regsvr32.exe explorer.exe PID 1212 wrote to memory of 1800 1212 regsvr32.exe explorer.exe PID 1212 wrote to memory of 1800 1212 regsvr32.exe explorer.exe PID 1212 wrote to memory of 1800 1212 regsvr32.exe explorer.exe PID 1800 wrote to memory of 1708 1800 explorer.exe reg.exe PID 1800 wrote to memory of 1708 1800 explorer.exe reg.exe PID 1800 wrote to memory of 1708 1800 explorer.exe reg.exe PID 1800 wrote to memory of 1708 1800 explorer.exe reg.exe PID 1800 wrote to memory of 1948 1800 explorer.exe reg.exe PID 1800 wrote to memory of 1948 1800 explorer.exe reg.exe PID 1800 wrote to memory of 1948 1800 explorer.exe reg.exe PID 1800 wrote to memory of 1948 1800 explorer.exe reg.exe
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\a695f24e4266187d70e4513e8b41b6e63c18cdb8cb540f1883192cdd746ec203.dll1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\a695f24e4266187d70e4513e8b41b6e63c18cdb8cb540f1883192cdd746ec203.dll2⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- 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 xwbbjakmg /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\a695f24e4266187d70e4513e8b41b6e63c18cdb8cb540f1883192cdd746ec203.dll\"" /SC ONCE /Z /ST 18:32 /ET 18:444⤵
- Creates scheduled task(s)
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C:\Windows\system32\taskeng.exetaskeng.exe {4A23D593-C8A5-4541-B0E7-74347B4F014C} 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\a695f24e4266187d70e4513e8b41b6e63c18cdb8cb540f1883192cdd746ec203.dll"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe-s "C:\Users\Admin\AppData\Local\Temp\a695f24e4266187d70e4513e8b41b6e63c18cdb8cb540f1883192cdd746ec203.dll"3⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- 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\Wltaoss" /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\Iuhukqaock" /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\a695f24e4266187d70e4513e8b41b6e63c18cdb8cb540f1883192cdd746ec203.dllMD5
e8de1a621f8743238c9ce96cd91f58b8
SHA1bc579c3ac95dc28a4575b6c27da4718763989509
SHA256a695f24e4266187d70e4513e8b41b6e63c18cdb8cb540f1883192cdd746ec203
SHA51297404dc8aa5701ae3189a8822876c14da81b0876e39c17050d871e774bbdc93b764f91bc61e9cffb1f292bb06324bcd8de1870ae5b89bc33d974b4af1b3a7c83
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C:\Windows\System32\CatRoot2\dberr.txtMD5
ced5124a9bc00ce5d018ab2674158d24
SHA10ab1703058fbdd7a2b7048a2ccb79506f58f6322
SHA256bc445524ce261a2aa185abe1ae51ffe013d641d091696098389ddfd9016f2ef4
SHA512be1b9926fef4c0d544ddcf091ac9d867f0a6f179979e1304d60cbc1fb4310362cf98d7e5a3b8757bb7f5bc0eea444496e04e31438b7252727f63c8e01d72f264
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\??\PIPE\wkssvcMD5
d41d8cd98f00b204e9800998ecf8427e
SHA1da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e
-
\Users\Admin\AppData\Local\Temp\a695f24e4266187d70e4513e8b41b6e63c18cdb8cb540f1883192cdd746ec203.dllMD5
e8de1a621f8743238c9ce96cd91f58b8
SHA1bc579c3ac95dc28a4575b6c27da4718763989509
SHA256a695f24e4266187d70e4513e8b41b6e63c18cdb8cb540f1883192cdd746ec203
SHA51297404dc8aa5701ae3189a8822876c14da81b0876e39c17050d871e774bbdc93b764f91bc61e9cffb1f292bb06324bcd8de1870ae5b89bc33d974b4af1b3a7c83
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memory/836-58-0x00000000000B0000-0x00000000000B2000-memory.dmpFilesize
8KB
-
memory/836-59-0x0000000000000000-mapping.dmp
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memory/836-61-0x0000000074DA1000-0x0000000074DA3000-memory.dmpFilesize
8KB
-
memory/836-64-0x0000000000080000-0x00000000000A1000-memory.dmpFilesize
132KB
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memory/1212-69-0x0000000000000000-mapping.dmp
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memory/1252-66-0x0000000000000000-mapping.dmp
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memory/1492-65-0x0000000000000000-mapping.dmp
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memory/1620-63-0x0000000010000000-0x00000000101DC000-memory.dmpFilesize
1.9MB
-
memory/1620-62-0x00000000001C0000-0x00000000001C1000-memory.dmpFilesize
4KB
-
memory/1620-57-0x0000000075DF1000-0x0000000075DF3000-memory.dmpFilesize
8KB
-
memory/1620-56-0x0000000000000000-mapping.dmp
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memory/1668-55-0x000007FEFC3A1000-0x000007FEFC3A3000-memory.dmpFilesize
8KB
-
memory/1708-78-0x0000000000000000-mapping.dmp
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memory/1800-74-0x0000000000000000-mapping.dmp
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memory/1800-79-0x00000000000C0000-0x00000000000E1000-memory.dmpFilesize
132KB
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memory/1948-80-0x0000000000000000-mapping.dmp