Analysis
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max time kernel
21s -
max time network
19s -
platform
windows7_x64 -
resource
win7-20230712-en -
resource tags
arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system -
submitted
20-07-2023 14:38
Static task
static1
Behavioral task
behavioral1
Sample
paint.net.5.0.7.install.x64.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
paint.net.5.0.7.install.x64.exe
Resource
win10v2004-20230703-en
General
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Target
paint.net.5.0.7.install.x64.exe
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Size
62.3MB
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MD5
6f86aae6d0ae5f9528dbb3f0e79c6b18
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SHA1
b08e7584742aa1bfb0b4392137a5f5d5054c0407
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SHA256
66699c704e29cddea138939d15975d148c5579921d2644436e6288fd1ed952d6
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SHA512
e8188e775c6983c1486b0fbf12c816a8d0782ced4e28d2a6b70335998485a28689bbbe2fc0bb9a9f90f9b7c3607cadaaf54cd8e5fb2325ad99bb38a6be7e20eb
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SSDEEP
1572864:mXR4eDZdsOA4k35+yJ+Tmz9OXBVUp3W/Zl8D:mB1e4q1JZzZp8Zl8D
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
SetupShim.exepid process 2340 SetupShim.exe -
Loads dropped DLL 4 IoCs
Processes:
paint.net.5.0.7.install.x64.exepid process 1732 paint.net.5.0.7.install.x64.exe 1732 paint.net.5.0.7.install.x64.exe 1732 paint.net.5.0.7.install.x64.exe 1732 paint.net.5.0.7.install.x64.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 7 IoCs
Processes:
paint.net.5.0.7.install.x64.exedescription pid process target process PID 1732 wrote to memory of 2340 1732 paint.net.5.0.7.install.x64.exe SetupShim.exe PID 1732 wrote to memory of 2340 1732 paint.net.5.0.7.install.x64.exe SetupShim.exe PID 1732 wrote to memory of 2340 1732 paint.net.5.0.7.install.x64.exe SetupShim.exe PID 1732 wrote to memory of 2340 1732 paint.net.5.0.7.install.x64.exe SetupShim.exe PID 1732 wrote to memory of 2340 1732 paint.net.5.0.7.install.x64.exe SetupShim.exe PID 1732 wrote to memory of 2340 1732 paint.net.5.0.7.install.x64.exe SetupShim.exe PID 1732 wrote to memory of 2340 1732 paint.net.5.0.7.install.x64.exe SetupShim.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\paint.net.5.0.7.install.x64.exe"C:\Users\Admin\AppData\Local\Temp\paint.net.5.0.7.install.x64.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\7zS4C65D3C6\SetupShim.exe"C:\Users\Admin\AppData\Local\Temp\7zS4C65D3C6\SetupShim.exe" /suppressReboot2⤵
- Executes dropped EXE
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\7zS4C65D3C6\SetupShim.exeFilesize
137KB
MD5c418df22a5b498845690f5e1b85af0ef
SHA170172d659ebc32aa9542f880df73e25b5e22a2eb
SHA2563f480d7ad95c97fb742647a4adb89574ffce2de793b4f0ab06354a87bc9717ee
SHA51227745774d2cf8c21d833c57d58858e27213dfa58726fa2c2436e0e56fe55006f8f43f63646c8f0e22e7c16a4717cebc3fc364342b096c6267af30615173b6b46
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C:\Users\Admin\AppData\Local\Temp\7zS4C65D3C6\SetupShim.exeFilesize
137KB
MD5c418df22a5b498845690f5e1b85af0ef
SHA170172d659ebc32aa9542f880df73e25b5e22a2eb
SHA2563f480d7ad95c97fb742647a4adb89574ffce2de793b4f0ab06354a87bc9717ee
SHA51227745774d2cf8c21d833c57d58858e27213dfa58726fa2c2436e0e56fe55006f8f43f63646c8f0e22e7c16a4717cebc3fc364342b096c6267af30615173b6b46
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C:\Users\Admin\AppData\Local\Temp\7zS4C65D3C6\x64\PaintDotNet.Strings.3.co.resourcesFilesize
178KB
MD575323dd2cf1cb773371b45f8df4c1d8b
SHA1958760f83c75ba6cc61bd7e76e39052709057e53
SHA256b7d22d4279550225e72d542c1df8c4b2549b17a079cdadb964fb6c1f3b3ca002
SHA512f0663bdfef779ae992fc8d6ebd9913380cfc4eb4220962408accee095558a0b4c4501174ab3720763290097b999c17cce1bb566a05a32b9ed0ecd494e72d3cd1
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\Users\Admin\AppData\Local\Temp\7zS4C65D3C6\SetupShim.exeFilesize
137KB
MD5c418df22a5b498845690f5e1b85af0ef
SHA170172d659ebc32aa9542f880df73e25b5e22a2eb
SHA2563f480d7ad95c97fb742647a4adb89574ffce2de793b4f0ab06354a87bc9717ee
SHA51227745774d2cf8c21d833c57d58858e27213dfa58726fa2c2436e0e56fe55006f8f43f63646c8f0e22e7c16a4717cebc3fc364342b096c6267af30615173b6b46
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\Users\Admin\AppData\Local\Temp\7zS4C65D3C6\SetupShim.exeFilesize
137KB
MD5c418df22a5b498845690f5e1b85af0ef
SHA170172d659ebc32aa9542f880df73e25b5e22a2eb
SHA2563f480d7ad95c97fb742647a4adb89574ffce2de793b4f0ab06354a87bc9717ee
SHA51227745774d2cf8c21d833c57d58858e27213dfa58726fa2c2436e0e56fe55006f8f43f63646c8f0e22e7c16a4717cebc3fc364342b096c6267af30615173b6b46
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\Users\Admin\AppData\Local\Temp\7zS4C65D3C6\SetupShim.exeFilesize
137KB
MD5c418df22a5b498845690f5e1b85af0ef
SHA170172d659ebc32aa9542f880df73e25b5e22a2eb
SHA2563f480d7ad95c97fb742647a4adb89574ffce2de793b4f0ab06354a87bc9717ee
SHA51227745774d2cf8c21d833c57d58858e27213dfa58726fa2c2436e0e56fe55006f8f43f63646c8f0e22e7c16a4717cebc3fc364342b096c6267af30615173b6b46
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\Users\Admin\AppData\Local\Temp\7zS4C65D3C6\SetupShim.exeFilesize
137KB
MD5c418df22a5b498845690f5e1b85af0ef
SHA170172d659ebc32aa9542f880df73e25b5e22a2eb
SHA2563f480d7ad95c97fb742647a4adb89574ffce2de793b4f0ab06354a87bc9717ee
SHA51227745774d2cf8c21d833c57d58858e27213dfa58726fa2c2436e0e56fe55006f8f43f63646c8f0e22e7c16a4717cebc3fc364342b096c6267af30615173b6b46