Analysis
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max time kernel
146s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
30-12-2023 23:01
Static task
static1
Behavioral task
behavioral1
Sample
1f45bcf1fb8b7ef74a57d19a371f41cf.dll
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
1f45bcf1fb8b7ef74a57d19a371f41cf.dll
Resource
win10v2004-20231222-en
General
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Target
1f45bcf1fb8b7ef74a57d19a371f41cf.dll
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Size
1.3MB
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MD5
1f45bcf1fb8b7ef74a57d19a371f41cf
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SHA1
9b7f346a04f8481c22fb6f8853f76349402a7009
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SHA256
aee116011409a5bec7d356bd8f704df0a361fb029bf20178d49e02607798d9a1
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SHA512
6cdbc392b650420d9238d7400956fa41ec9ede827576b9023b977e232dd18b3dd72f36082fc6cdb5af7f62868b0bd00e9b718522799467c674efb6202a169f9f
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SSDEEP
24576:ax12nIqqCgOgFO9fccuUMHKv+i7e1LXEdFoGzIyXjxeKr:aYIqJPV9fcHqmGSr9or
Malware Config
Signatures
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Bazar Loader
Detected loader normally used to deploy BazarBackdoor malware.
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Bazar/Team9 Loader payload 7 IoCs
Processes:
resource yara_rule behavioral1/memory/2928-0-0x0000000027700000-0x0000000027764000-memory.dmp BazarLoaderVar3 behavioral1/memory/2928-1-0x000007FEF6CC0000-0x000007FEF6E62000-memory.dmp BazarLoaderVar3 behavioral1/memory/2928-10-0x0000000027700000-0x0000000027764000-memory.dmp BazarLoaderVar3 behavioral1/memory/2928-9-0x000007FEF6CC0000-0x000007FEF6E62000-memory.dmp BazarLoaderVar3 behavioral1/memory/2696-11-0x0000000027660000-0x00000000276C4000-memory.dmp BazarLoaderVar3 behavioral1/memory/2696-12-0x000007FEF63E0000-0x000007FEF6582000-memory.dmp BazarLoaderVar3 behavioral1/memory/2696-19-0x0000000027660000-0x00000000276C4000-memory.dmp BazarLoaderVar3 -
Modifies registry key 1 TTPs 1 IoCs
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Runs ping.exe 1 TTPs 2 IoCs
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Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs
Processes:
regsvr32.exepid process 2696 regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
regsvr32.exepid process 2696 regsvr32.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
regsvr32.execmd.exeregsvr32.exedescription pid process target process PID 2928 wrote to memory of 820 2928 regsvr32.exe cmd.exe PID 2928 wrote to memory of 820 2928 regsvr32.exe cmd.exe PID 2928 wrote to memory of 820 2928 regsvr32.exe cmd.exe PID 820 wrote to memory of 2164 820 cmd.exe PING.EXE PID 820 wrote to memory of 2164 820 cmd.exe PING.EXE PID 820 wrote to memory of 2164 820 cmd.exe PING.EXE PID 820 wrote to memory of 2696 820 cmd.exe regsvr32.exe PID 820 wrote to memory of 2696 820 cmd.exe regsvr32.exe PID 820 wrote to memory of 2696 820 cmd.exe regsvr32.exe PID 820 wrote to memory of 2696 820 cmd.exe regsvr32.exe PID 820 wrote to memory of 2696 820 cmd.exe regsvr32.exe PID 2696 wrote to memory of 1204 2696 regsvr32.exe cmd.exe PID 2696 wrote to memory of 1204 2696 regsvr32.exe cmd.exe PID 2696 wrote to memory of 1204 2696 regsvr32.exe cmd.exe
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\1f45bcf1fb8b7ef74a57d19a371f41cf.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2928 -
C:\Windows\system32\cmd.execmd /c ping 127.0.0.1 -n 8 & "C:\Windows\system32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\1f45bcf1fb8b7ef74a57d19a371f41cf.dll" mscp ahis & exit2⤵
- Suspicious use of WriteProcessMemory
PID:820 -
C:\Windows\system32\PING.EXEping 127.0.0.1 -n 83⤵
- Runs ping.exe
PID:2164
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C:\Windows\system32\regsvr32.exe"C:\Windows\system32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\1f45bcf1fb8b7ef74a57d19a371f41cf.dll" mscp ahis3⤵
- Suspicious behavior: CmdExeWriteProcessMemorySpam
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2696 -
C:\Windows\system32\cmd.execmd.exe /c echo %temp%4⤵PID:1204
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C:\Windows\system32\cmd.execmd /c ping 127.0.0.1 -n 8 & "C:\Windows\system32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\Damp\lrmeihkpubjk.exe" mscp arih & exit4⤵PID:2248
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C:\Windows\system32\cmd.execmd.exe /c reg.exe add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v RealtechUpdate /t REG_SZ /d "\"C:\Windows\system32\regsvr32.exe\" /s \"C:\Users\Admin\AppData\Local\Temp\Damp\lrmeihkpubjk.exe\" mscp arih"4⤵PID:2256
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C:\Windows\system32\reg.exereg.exe add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v RealtechUpdate /t REG_SZ /d "\"C:\Windows\system32\regsvr32.exe\" /s \"C:\Users\Admin\AppData\Local\Temp\Damp\lrmeihkpubjk.exe\" mscp arih"1⤵
- Modifies registry key
PID:2348
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C:\Windows\system32\PING.EXEping 127.0.0.1 -n 81⤵
- Runs ping.exe
PID:1856