Analysis
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max time kernel
142s -
max time network
118s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
28-12-2021 12:47
Static task
static1
Behavioral task
behavioral1
Sample
1bbfe3e3d11a78fe8c9a8abf0eb3de8c915d34d3938d8f886d896e334ff36b8a.dll
Resource
win7-en-20211208
General
-
Target
1bbfe3e3d11a78fe8c9a8abf0eb3de8c915d34d3938d8f886d896e334ff36b8a.dll
-
Size
1.8MB
-
MD5
b7113424e89937b22a6da097622a83d5
-
SHA1
9e0219d7f65ef05e2c1ce19f24dfcf32eb5c8906
-
SHA256
1bbfe3e3d11a78fe8c9a8abf0eb3de8c915d34d3938d8f886d896e334ff36b8a
-
SHA512
e179b96f8f3dfee1a7882ee840500c1fe4ab35792d280503876b90323f0332f888b015fc55fa08de1dda0234a99bc15b23aff61315db721542133aab5ab85c0e
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 1160 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\Uooiyzrb\b0b44047 = 1c7963d0b4c84b54f17b22710eef175bfab84926baeee239579cfb600d67c79df026dd34984f31adbb23b76a290f721ac81853c6ebb1b41e2069dc8e6f474d250a5b1a1714b9092b7d782dcd0dc62828fcca28b6e30040f5139b382338608508e97ef67ae83b2329b385649b90 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Uooiyzrb\cffd2fb1 = 8af7c99fc23f00ae3d146d4c689389c6f3e4ec2d50dc3a74027db81bd85c0459593da6112ad29aa845dfaa7142b68c664f72fec08efb5f52c9968dc089b814205b6fd2e62babec7bb83b explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Uooiyzrb\42de989a = 9ce603a2840880d9de274e3c5a466d8de44c54ed44b32f27ea5134ca35a3bde3fb17e138a4d577cfc036c8d11841bb3b243efc6a870f52ab5659 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Uooiyzrb\774148d4 = b5a18dc92fda8f644a10a0aadfb72658b1df059f38bf5707f7d90abab5cfd36193b62a2696369895a219405b1b73990fbe13694f198abf4553836bce15f30b3e397d1e1e54872f63cffe73cb25cb6c0b069e3395ca5d1eadd8fcf65c87e72c39005e441cf3a77edfee5ca8982c1be1 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Uooiyzrb\750068a8 = 7267cdf34175574a3762ea519800a3c73826395447ebe3463829fbb01ddaba45bf8175c9a66d65990e460e4247368c75fadf62bd7e51107c8c777625b6ba61eeaf14b86d7681f16cd89b89cfe62f8a0adad915453b92368b0ebebe2a2be7d10f7120b66bc28923246630f618 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Uooiyzrb\cdbc0fcd = 610c20b605c51a0c88888c4294d6b17a9b5f89e34cbbc6a6687b54 explorer.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Uooiyzrb explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Uooiyzrb\8082722 = 1e8a2e12d4b750de72fc3358f7d6cc3c599681ccb395e6 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Uooiyzrb\3d97f76c = b925b39a5add6418ca0eafd20b086341d98c7194545130a375a8e0f0a75ce21aebbf47 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Uooiyzrb\42de989a = 9ce614a28408b5272c50c50cdf77679a6a6cde121a6b91033ef48145cca8ed8a49635568a2f1f3b1195ba1426a77b0e9a253fce673f29458f19203511d27dbe2ccff34bd0b25dcb21e9f4a629761b5 explorer.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
regsvr32.exeregsvr32.exepid process 864 regsvr32.exe 1160 regsvr32.exe -
Suspicious behavior: MapViewOfSection 2 IoCs
Processes:
regsvr32.exeregsvr32.exepid process 864 regsvr32.exe 1160 regsvr32.exe -
Suspicious use of FindShellTrayWindow 40 IoCs
Processes:
regsvr32.exeregsvr32.exepid process 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 1160 regsvr32.exe 1160 regsvr32.exe 1160 regsvr32.exe 1160 regsvr32.exe 1160 regsvr32.exe 1160 regsvr32.exe 1160 regsvr32.exe 1160 regsvr32.exe 1160 regsvr32.exe 1160 regsvr32.exe 1160 regsvr32.exe 1160 regsvr32.exe 1160 regsvr32.exe 1160 regsvr32.exe 1160 regsvr32.exe 1160 regsvr32.exe 1160 regsvr32.exe 1160 regsvr32.exe 1160 regsvr32.exe 1160 regsvr32.exe -
Suspicious use of SendNotifyMessage 20 IoCs
Processes:
regsvr32.exepid process 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe 864 regsvr32.exe -
Suspicious use of WriteProcessMemory 43 IoCs
Processes:
regsvr32.exeregsvr32.exeexplorer.exetaskeng.exeregsvr32.exeregsvr32.exeexplorer.exedescription pid process target process PID 1264 wrote to memory of 864 1264 regsvr32.exe regsvr32.exe PID 1264 wrote to memory of 864 1264 regsvr32.exe regsvr32.exe PID 1264 wrote to memory of 864 1264 regsvr32.exe regsvr32.exe PID 1264 wrote to memory of 864 1264 regsvr32.exe regsvr32.exe PID 1264 wrote to memory of 864 1264 regsvr32.exe regsvr32.exe PID 1264 wrote to memory of 864 1264 regsvr32.exe regsvr32.exe PID 1264 wrote to memory of 864 1264 regsvr32.exe regsvr32.exe PID 864 wrote to memory of 588 864 regsvr32.exe explorer.exe PID 864 wrote to memory of 588 864 regsvr32.exe explorer.exe PID 864 wrote to memory of 588 864 regsvr32.exe explorer.exe PID 864 wrote to memory of 588 864 regsvr32.exe explorer.exe PID 864 wrote to memory of 588 864 regsvr32.exe explorer.exe PID 864 wrote to memory of 588 864 regsvr32.exe explorer.exe PID 588 wrote to memory of 1104 588 explorer.exe schtasks.exe PID 588 wrote to memory of 1104 588 explorer.exe schtasks.exe PID 588 wrote to memory of 1104 588 explorer.exe schtasks.exe PID 588 wrote to memory of 1104 588 explorer.exe schtasks.exe PID 1552 wrote to memory of 1688 1552 taskeng.exe regsvr32.exe PID 1552 wrote to memory of 1688 1552 taskeng.exe regsvr32.exe PID 1552 wrote to memory of 1688 1552 taskeng.exe regsvr32.exe PID 1552 wrote to memory of 1688 1552 taskeng.exe regsvr32.exe PID 1552 wrote to memory of 1688 1552 taskeng.exe regsvr32.exe PID 1688 wrote to memory of 1160 1688 regsvr32.exe regsvr32.exe PID 1688 wrote to memory of 1160 1688 regsvr32.exe regsvr32.exe PID 1688 wrote to memory of 1160 1688 regsvr32.exe regsvr32.exe PID 1688 wrote to memory of 1160 1688 regsvr32.exe regsvr32.exe PID 1688 wrote to memory of 1160 1688 regsvr32.exe regsvr32.exe PID 1688 wrote to memory of 1160 1688 regsvr32.exe regsvr32.exe PID 1688 wrote to memory of 1160 1688 regsvr32.exe regsvr32.exe PID 1160 wrote to memory of 1680 1160 regsvr32.exe explorer.exe PID 1160 wrote to memory of 1680 1160 regsvr32.exe explorer.exe PID 1160 wrote to memory of 1680 1160 regsvr32.exe explorer.exe PID 1160 wrote to memory of 1680 1160 regsvr32.exe explorer.exe PID 1160 wrote to memory of 1680 1160 regsvr32.exe explorer.exe PID 1160 wrote to memory of 1680 1160 regsvr32.exe explorer.exe PID 1680 wrote to memory of 316 1680 explorer.exe reg.exe PID 1680 wrote to memory of 316 1680 explorer.exe reg.exe PID 1680 wrote to memory of 316 1680 explorer.exe reg.exe PID 1680 wrote to memory of 316 1680 explorer.exe reg.exe PID 1680 wrote to memory of 1964 1680 explorer.exe reg.exe PID 1680 wrote to memory of 1964 1680 explorer.exe reg.exe PID 1680 wrote to memory of 1964 1680 explorer.exe reg.exe PID 1680 wrote to memory of 1964 1680 explorer.exe reg.exe
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\1bbfe3e3d11a78fe8c9a8abf0eb3de8c915d34d3938d8f886d896e334ff36b8a.dll1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\1bbfe3e3d11a78fe8c9a8abf0eb3de8c915d34d3938d8f886d896e334ff36b8a.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 rplfhysllz /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\1bbfe3e3d11a78fe8c9a8abf0eb3de8c915d34d3938d8f886d896e334ff36b8a.dll\"" /SC ONCE /Z /ST 13:49 /ET 14:014⤵
- Creates scheduled task(s)
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C:\Windows\system32\taskeng.exetaskeng.exe {CCD2FF2F-0E25-4710-89C3-48AFE8522526} 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\1bbfe3e3d11a78fe8c9a8abf0eb3de8c915d34d3938d8f886d896e334ff36b8a.dll"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe-s "C:\Users\Admin\AppData\Local\Temp\1bbfe3e3d11a78fe8c9a8abf0eb3de8c915d34d3938d8f886d896e334ff36b8a.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\Ofouij" /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\Oymabu" /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\1bbfe3e3d11a78fe8c9a8abf0eb3de8c915d34d3938d8f886d896e334ff36b8a.dllMD5
b7113424e89937b22a6da097622a83d5
SHA19e0219d7f65ef05e2c1ce19f24dfcf32eb5c8906
SHA2561bbfe3e3d11a78fe8c9a8abf0eb3de8c915d34d3938d8f886d896e334ff36b8a
SHA512e179b96f8f3dfee1a7882ee840500c1fe4ab35792d280503876b90323f0332f888b015fc55fa08de1dda0234a99bc15b23aff61315db721542133aab5ab85c0e
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C:\Windows\System32\CatRoot2\dberr.txtMD5
f091bdb7d23cc514df351d8aed893b68
SHA119e33dcaa8124d8e67673e7c8ff102ca9bfc77f0
SHA25690c9cc88ca244c0fcc803ad7d4457120d5892b0dca889362f2c880a952feeab6
SHA51273036488f5501c03d8b6572bcd280a94bb6f5c234116cd4321af3bf0fbf85614205e764c0bc60c5c3b4171b555a95d9d8a026b298943ebfa2efe14a81502da25
-
\Users\Admin\AppData\Local\Temp\1bbfe3e3d11a78fe8c9a8abf0eb3de8c915d34d3938d8f886d896e334ff36b8a.dllMD5
b7113424e89937b22a6da097622a83d5
SHA19e0219d7f65ef05e2c1ce19f24dfcf32eb5c8906
SHA2561bbfe3e3d11a78fe8c9a8abf0eb3de8c915d34d3938d8f886d896e334ff36b8a
SHA512e179b96f8f3dfee1a7882ee840500c1fe4ab35792d280503876b90323f0332f888b015fc55fa08de1dda0234a99bc15b23aff61315db721542133aab5ab85c0e
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memory/316-77-0x0000000000000000-mapping.dmp
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memory/588-58-0x00000000000B0000-0x00000000000B2000-memory.dmpFilesize
8KB
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memory/588-59-0x0000000000000000-mapping.dmp
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memory/588-61-0x0000000074181000-0x0000000074183000-memory.dmpFilesize
8KB
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memory/588-65-0x0000000000080000-0x00000000000A1000-memory.dmpFilesize
132KB
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memory/864-56-0x0000000000000000-mapping.dmp
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memory/864-57-0x0000000075421000-0x0000000075423000-memory.dmpFilesize
8KB
-
memory/864-62-0x00000000001B0000-0x0000000000230000-memory.dmpFilesize
512KB
-
memory/864-63-0x0000000010000000-0x00000000101DC000-memory.dmpFilesize
1.9MB
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memory/1104-64-0x0000000000000000-mapping.dmp
-
memory/1160-69-0x0000000000000000-mapping.dmp
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memory/1160-79-0x0000000000150000-0x0000000000151000-memory.dmpFilesize
4KB
-
memory/1264-55-0x000007FEFB781000-0x000007FEFB783000-memory.dmpFilesize
8KB
-
memory/1680-74-0x0000000000000000-mapping.dmp
-
memory/1680-80-0x0000000000080000-0x00000000000A1000-memory.dmpFilesize
132KB
-
memory/1688-66-0x0000000000000000-mapping.dmp
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memory/1964-78-0x0000000000000000-mapping.dmp