Analysis
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max time kernel
156s -
max time network
169s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
04-12-2022 00:51
Static task
static1
Behavioral task
behavioral1
Sample
73b8af0cae1078fbe0290cca6aa48e84289e0038e7eb92bd4bd41295f9fb7658.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
73b8af0cae1078fbe0290cca6aa48e84289e0038e7eb92bd4bd41295f9fb7658.exe
Resource
win10v2004-20220812-en
General
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Target
73b8af0cae1078fbe0290cca6aa48e84289e0038e7eb92bd4bd41295f9fb7658.exe
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Size
143KB
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MD5
0c864b8ebeb8ea6e1a99a1abc9b1213a
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SHA1
808fa3c2afb67bd43400da4ed41c91d0fd6acecc
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SHA256
73b8af0cae1078fbe0290cca6aa48e84289e0038e7eb92bd4bd41295f9fb7658
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SHA512
40cf66929c1eac3835519136295d564d279b81131a3892190b90c0254e15b5fedd09b0029aeabc93fe6149f3f1ac441873466d9bc44d620f40a49876b8aaeb6a
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SSDEEP
1536:H++fq6M5b9NqTxV67wAInyAeG+90MHJaOsp1gMIEELZ2G6CNgRtOOOOOOOOEQ6Jm:H++VMoTxyi9e7O1IXLoSWRqcHfe
Malware Config
Signatures
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Cobaltstrike
Detected malicious payload which is part of Cobaltstrike.
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Executes dropped EXE 1 IoCs
Processes:
CacheMgr.exepid process 5056 CacheMgr.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
73b8af0cae1078fbe0290cca6aa48e84289e0038e7eb92bd4bd41295f9fb7658.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run 73b8af0cae1078fbe0290cca6aa48e84289e0038e7eb92bd4bd41295f9fb7658.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\StubPath = "\"C:\\Users\\Admin\\AppData\\Roaming\\CacheMgr.exe\" -as" 73b8af0cae1078fbe0290cca6aa48e84289e0038e7eb92bd4bd41295f9fb7658.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
73b8af0cae1078fbe0290cca6aa48e84289e0038e7eb92bd4bd41295f9fb7658.exedescription pid process target process PID 2144 wrote to memory of 4940 2144 73b8af0cae1078fbe0290cca6aa48e84289e0038e7eb92bd4bd41295f9fb7658.exe cmd.exe PID 2144 wrote to memory of 4940 2144 73b8af0cae1078fbe0290cca6aa48e84289e0038e7eb92bd4bd41295f9fb7658.exe cmd.exe PID 2144 wrote to memory of 4940 2144 73b8af0cae1078fbe0290cca6aa48e84289e0038e7eb92bd4bd41295f9fb7658.exe cmd.exe PID 2144 wrote to memory of 5056 2144 73b8af0cae1078fbe0290cca6aa48e84289e0038e7eb92bd4bd41295f9fb7658.exe CacheMgr.exe PID 2144 wrote to memory of 5056 2144 73b8af0cae1078fbe0290cca6aa48e84289e0038e7eb92bd4bd41295f9fb7658.exe CacheMgr.exe PID 2144 wrote to memory of 5056 2144 73b8af0cae1078fbe0290cca6aa48e84289e0038e7eb92bd4bd41295f9fb7658.exe CacheMgr.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\73b8af0cae1078fbe0290cca6aa48e84289e0038e7eb92bd4bd41295f9fb7658.exe"C:\Users\Admin\AppData\Local\Temp\73b8af0cae1078fbe0290cca6aa48e84289e0038e7eb92bd4bd41295f9fb7658.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.execmd.exe /c copy "C:\Users\Admin\AppData\Local\Temp\73b8af0cae1078fbe0290cca6aa48e84289e0038e7eb92bd4bd41295f9fb7658.exe" "C:\Users\Admin\AppData\Roaming\CacheMgr.exe"2⤵
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C:\Users\Admin\AppData\Roaming\CacheMgr.exe"C:\Users\Admin\AppData\Roaming\CacheMgr.exe" -as2⤵
- Executes dropped EXE
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\CacheMgr.exeFilesize
143KB
MD50c864b8ebeb8ea6e1a99a1abc9b1213a
SHA1808fa3c2afb67bd43400da4ed41c91d0fd6acecc
SHA25673b8af0cae1078fbe0290cca6aa48e84289e0038e7eb92bd4bd41295f9fb7658
SHA51240cf66929c1eac3835519136295d564d279b81131a3892190b90c0254e15b5fedd09b0029aeabc93fe6149f3f1ac441873466d9bc44d620f40a49876b8aaeb6a
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C:\Users\Admin\AppData\Roaming\CacheMgr.exeFilesize
143KB
MD50c864b8ebeb8ea6e1a99a1abc9b1213a
SHA1808fa3c2afb67bd43400da4ed41c91d0fd6acecc
SHA25673b8af0cae1078fbe0290cca6aa48e84289e0038e7eb92bd4bd41295f9fb7658
SHA51240cf66929c1eac3835519136295d564d279b81131a3892190b90c0254e15b5fedd09b0029aeabc93fe6149f3f1ac441873466d9bc44d620f40a49876b8aaeb6a
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memory/2144-140-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/2144-134-0x00000000009C0000-0x0000000000AC0000-memory.dmpFilesize
1024KB
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memory/2144-135-0x00000000001D0000-0x00000000001E5000-memory.dmpFilesize
84KB
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memory/2144-133-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/2144-142-0x00000000001D0000-0x00000000001E5000-memory.dmpFilesize
84KB
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memory/4940-136-0x0000000000000000-mapping.dmp
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memory/5056-137-0x0000000000000000-mapping.dmp
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memory/5056-143-0x0000000000830000-0x0000000000930000-memory.dmpFilesize
1024KB
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memory/5056-144-0x00000000001D0000-0x00000000001E5000-memory.dmpFilesize
84KB
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memory/5056-145-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/5056-146-0x0000000000830000-0x0000000000930000-memory.dmpFilesize
1024KB
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memory/5056-147-0x00000000001D0000-0x00000000001E5000-memory.dmpFilesize
84KB