Analysis
-
max time kernel
145s -
max time network
125s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
15-12-2021 14:18
Static task
static1
Behavioral task
behavioral1
Sample
b4da540a4ea5256861bd226b0461673a3da6d7fc195ddb50df59234f4903a576.dll
Resource
win7-en-20211208
General
-
Target
b4da540a4ea5256861bd226b0461673a3da6d7fc195ddb50df59234f4903a576.dll
-
Size
934KB
-
MD5
456fca45a858277d9837b058154600fe
-
SHA1
ce09f3d52f7628488db6fcbf26c4de933301455c
-
SHA256
b4da540a4ea5256861bd226b0461673a3da6d7fc195ddb50df59234f4903a576
-
SHA512
ab1a0b679b4d765fd04999f815d2d545725d4acbe9df9d9c34138c08c373c671b3509ec535269d59bc2c49e1d5f3596182da1c9c043c84c91232ba6c7fa1c28d
Malware Config
Extracted
qakbot
403.10
cullinan
1639333530
65.100.174.110:443
173.21.10.71:2222
140.82.49.12:443
190.73.3.148:2222
76.25.142.196:443
71.74.12.34:443
31.215.98.160:443
93.48.80.198:995
45.9.20.200:2211
41.228.22.180:443
109.12.111.14:443
63.143.92.99:995
120.150.218.241:995
94.60.254.81:443
86.148.6.51:443
218.101.110.3:995
216.238.71.31:443
207.246.112.221:443
216.238.72.121:443
216.238.71.31:995
207.246.112.221:995
216.238.72.121:995
186.64.87.195:443
73.151.236.31:443
78.191.12.29:995
67.165.206.193:993
68.186.192.69:443
65.100.174.110:8443
89.137.52.44:443
75.188.35.168:995
105.198.236.99:995
182.176.180.73:443
103.142.10.177:443
136.232.34.70:443
68.204.7.158:443
27.223.92.142:995
102.65.38.67:443
189.175.200.244:80
100.1.119.41:443
73.140.38.124:443
73.171.4.177:443
89.101.97.139:443
24.229.150.54:995
72.252.201.34:995
39.49.44.85:995
2.222.167.138:443
96.37.113.36:993
117.248.109.38:21
39.43.130.50:995
75.169.58.229:32100
24.55.112.61:443
27.5.4.111:2222
197.89.144.207:443
73.5.119.219:443
136.143.11.232:443
86.98.36.211:443
106.220.76.130:443
129.208.139.229:995
45.46.53.140:2222
190.229.210.128:465
91.178.126.51:995
189.18.181.24:995
185.53.147.51:443
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salt
jHxastDcds)oMc=jvh7wdUhxcsdt2
Signatures
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Loads dropped DLL 1 IoCs
Processes:
regsvr32.exepid process 3260 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 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Ysqiealdthnxq explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Ysqiealdthnxq\7c49d89a = 42c0b3ca38816e6a730ba6a1fb65265fa57630ebf9b124ffb50b59ce794d69a94023708563b7f312c4ce429d65ca548e5240e925776b5adfb8806350e8ca1b6af646703ae73395ae37ef explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Ysqiealdthnxq\49d608d4 = 03e9c1fe1017db03e409f510ea98d7aca443988474d59014fe2cd86d06608e2b133c5a2a60a53ccbad31b563d4bd4d963caa5e122dabce15e41d08c58cd0420333d7a90568ce7136c60b415a4b5ab3daa09a5d626440c3d01d73f25aa71c64247ca9ed40e753c8e312d2f82d43bfd539ad0a00708aaa92ac618e88ba75a91c7b5f57bf5cdd445ea755d757 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Ysqiealdthnxq\f32b4fcd = 5804c149b50e3e5865eba7ad3c04c5f4e5d886f03889fbde72ce9010502cb4e8c6c57ab1feb068665b80ea5c6336b50b54b7733f58849ba61790cbe77c5a53 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Ysqiealdthnxq\369f6722 = 6b6f3df2102f017ac310ba80f3e01efec1305e87193fedf660985da80e0c explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Ysqiealdthnxq\4b9728a8 = 15c96f0d3ab9dc02730a87d5ce24912cea4cb353fd83aeaae4b3a91eb5944737c0e776158ad82b62630fa7cb45e7ece084022e9218cc492745897641abce201b explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Ysqiealdthnxq\8e230047 = d01b435cd9a4efd48f44a71b55538a850f09a98e201367d7d64cee2eba7e3ba705bbfb45fff699f910eda1177e6876e5697aeafe26e86b64d64a9de2e15f1c614a562d85d0a6d03fdbc52bdb0fa4495c11176995fb0be5fb99 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Ysqiealdthnxq\f16a6fb1 = d2f46b29f2e2a48bc5c257735e9918f04d90d5e938e3411f18cd7996afae4c8b9e43f3e014bac6823ecf62ec7394505f1038e37d153a802ca5d907b1bf706813cf589f6a7eaa06949942c1df66481a871a95f417ff3d7b6c4313d1c2c6f94914 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Ysqiealdthnxq\300b76c = 8bfa69757543585fb9c34dce72448aaa514b0522a9a0e7dd3f24f14e498eb4c7a7f1a336f8163a96a9e70a61590300fc911b2cf3335c6025f96ff8e5a0da91fce6d3f3f083c5cbe084 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Ysqiealdthnxq\7c49d89a = 42c0a4ca38815b6b62cabce65e305324ed146ca6b2fc522f3a5120f19ad8043ad677e4403435d13583dc7861feaaf8a07cfbd42492eacc01deb086596b82448854f9b7eeb4c6ab36845aa58aee04448c6f2fc2e5bfac29af83392527990543 explorer.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
regsvr32.exeregsvr32.exepid process 3448 regsvr32.exe 3448 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe -
Suspicious behavior: MapViewOfSection 2 IoCs
Processes:
regsvr32.exeregsvr32.exepid process 3448 regsvr32.exe 3260 regsvr32.exe -
Suspicious use of FindShellTrayWindow 62 IoCs
Processes:
regsvr32.exeregsvr32.exepid process 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe 3260 regsvr32.exe -
Suspicious use of SendNotifyMessage 31 IoCs
Processes:
regsvr32.exepid process 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe 3448 regsvr32.exe -
Suspicious use of WriteProcessMemory 23 IoCs
Processes:
regsvr32.exeregsvr32.exeexplorer.exeregsvr32.exeregsvr32.exeexplorer.exedescription pid process target process PID 3780 wrote to memory of 3448 3780 regsvr32.exe regsvr32.exe PID 3780 wrote to memory of 3448 3780 regsvr32.exe regsvr32.exe PID 3780 wrote to memory of 3448 3780 regsvr32.exe regsvr32.exe PID 3448 wrote to memory of 3488 3448 regsvr32.exe explorer.exe PID 3448 wrote to memory of 3488 3448 regsvr32.exe explorer.exe PID 3448 wrote to memory of 3488 3448 regsvr32.exe explorer.exe PID 3448 wrote to memory of 3488 3448 regsvr32.exe explorer.exe PID 3448 wrote to memory of 3488 3448 regsvr32.exe explorer.exe PID 3488 wrote to memory of 4004 3488 explorer.exe schtasks.exe PID 3488 wrote to memory of 4004 3488 explorer.exe schtasks.exe PID 3488 wrote to memory of 4004 3488 explorer.exe schtasks.exe PID 3240 wrote to memory of 3260 3240 regsvr32.exe regsvr32.exe PID 3240 wrote to memory of 3260 3240 regsvr32.exe regsvr32.exe PID 3240 wrote to memory of 3260 3240 regsvr32.exe regsvr32.exe PID 3260 wrote to memory of 508 3260 regsvr32.exe explorer.exe PID 3260 wrote to memory of 508 3260 regsvr32.exe explorer.exe PID 3260 wrote to memory of 508 3260 regsvr32.exe explorer.exe PID 3260 wrote to memory of 508 3260 regsvr32.exe explorer.exe PID 3260 wrote to memory of 508 3260 regsvr32.exe explorer.exe PID 508 wrote to memory of 652 508 explorer.exe reg.exe PID 508 wrote to memory of 652 508 explorer.exe reg.exe PID 508 wrote to memory of 1196 508 explorer.exe reg.exe PID 508 wrote to memory of 1196 508 explorer.exe reg.exe
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\b4da540a4ea5256861bd226b0461673a3da6d7fc195ddb50df59234f4903a576.dll1⤵
- Suspicious use of WriteProcessMemory
PID:3780 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\b4da540a4ea5256861bd226b0461673a3da6d7fc195ddb50df59234f4903a576.dll2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3448 -
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe3⤵
- Suspicious use of WriteProcessMemory
PID:3488 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn laoaawcudy /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\b4da540a4ea5256861bd226b0461673a3da6d7fc195ddb50df59234f4903a576.dll\"" /SC ONCE /Z /ST 12:03 /ET 12:154⤵
- Creates scheduled task(s)
PID:4004
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\??\c:\windows\system32\regsvr32.exeregsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\b4da540a4ea5256861bd226b0461673a3da6d7fc195ddb50df59234f4903a576.dll"1⤵
- Suspicious use of WriteProcessMemory
PID:3240 -
C:\Windows\SysWOW64\regsvr32.exe-s "C:\Users\Admin\AppData\Local\Temp\b4da540a4ea5256861bd226b0461673a3da6d7fc195ddb50df59234f4903a576.dll"2⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3260 -
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe3⤵
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:508 -
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\Eljzc" /d "0"4⤵PID:652
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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\Vdbewatvxs" /d "0"4⤵PID:1196
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\b4da540a4ea5256861bd226b0461673a3da6d7fc195ddb50df59234f4903a576.dllMD5
456fca45a858277d9837b058154600fe
SHA1ce09f3d52f7628488db6fcbf26c4de933301455c
SHA256b4da540a4ea5256861bd226b0461673a3da6d7fc195ddb50df59234f4903a576
SHA512ab1a0b679b4d765fd04999f815d2d545725d4acbe9df9d9c34138c08c373c671b3509ec535269d59bc2c49e1d5f3596182da1c9c043c84c91232ba6c7fa1c28d
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\Users\Admin\AppData\Local\Temp\b4da540a4ea5256861bd226b0461673a3da6d7fc195ddb50df59234f4903a576.dllMD5
456fca45a858277d9837b058154600fe
SHA1ce09f3d52f7628488db6fcbf26c4de933301455c
SHA256b4da540a4ea5256861bd226b0461673a3da6d7fc195ddb50df59234f4903a576
SHA512ab1a0b679b4d765fd04999f815d2d545725d4acbe9df9d9c34138c08c373c671b3509ec535269d59bc2c49e1d5f3596182da1c9c043c84c91232ba6c7fa1c28d
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memory/508-130-0x0000000000000000-mapping.dmp
-
memory/508-135-0x00000000004C0000-0x00000000004C1000-memory.dmpFilesize
4KB
-
memory/508-134-0x00000000004C0000-0x00000000004C1000-memory.dmpFilesize
4KB
-
memory/508-133-0x00000000001A0000-0x00000000001C1000-memory.dmpFilesize
132KB
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memory/652-131-0x0000000000000000-mapping.dmp
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memory/1196-132-0x0000000000000000-mapping.dmp
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memory/3260-129-0x0000000002D80000-0x0000000002ECA000-memory.dmpFilesize
1.3MB
-
memory/3260-127-0x0000000000000000-mapping.dmp
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memory/3448-118-0x0000000000000000-mapping.dmp
-
memory/3448-119-0x0000000003220000-0x0000000003243000-memory.dmpFilesize
140KB
-
memory/3448-120-0x0000000010000000-0x00000000100F4000-memory.dmpFilesize
976KB
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memory/3488-121-0x0000000000000000-mapping.dmp
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memory/3488-125-0x0000000002D40000-0x0000000002D61000-memory.dmpFilesize
132KB
-
memory/3488-124-0x00000000031B0000-0x00000000031B1000-memory.dmpFilesize
4KB
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memory/3488-123-0x00000000031B0000-0x00000000031B1000-memory.dmpFilesize
4KB
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memory/4004-122-0x0000000000000000-mapping.dmp