Analysis
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max time kernel
134s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
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submitted
01-04-2024 10:38
General
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Target
vcredist2005_x86.exe
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Size
2.6MB
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MD5
ce2922f83fb4b170affce0ea448b107b
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SHA1
b8fab0bb7f62a24ddfe77b19cd9a1451abd7b847
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SHA256
4ee4da0fe62d5fa1b5e80c6e6d88a4a2f8b3b140c35da51053d0d7b72a381d29
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SHA512
e94b077e054bd8992374d359f3adc4d1d78d42118d878556715d77182f7d03635850b2b2f06c012ccb7c410e2b3c124cf6508473efe150d3c51a51857ce1c6b0
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SSDEEP
49152:rqGRIgg2SirwkF9xdtb43lyGKCafpKkiwnaDahmPzpY4FPyaza:rxxLFfY/KCCpKk9aWMzZyau
Malware Config
Signatures
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Loads dropped DLL 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
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Enumerates connected drives 3 TTPs 46 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
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Drops file in Program Files directory 1 IoCs
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Drops file in Windows directory 57 IoCs
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Checks SCSI registry key(s) 3 TTPs 5 IoCs
SCSI information is often read in order to detect sandboxing environments.
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Modifies data under HKEY_USERS 3 IoCs
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Modifies registry class 45 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
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Suspicious use of FindShellTrayWindow 2 IoCs
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Suspicious use of WriteProcessMemory 8 IoCs
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\vcredist2005_x86.exe"C:\Users\Admin\AppData\Local\Temp\vcredist2005_x86.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\msiexec.exemsiexec /i vcredist.msi2⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
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C:\Windows\system32\msiexec.exeC:\Windows\system32\msiexec.exe /V1⤵
- Enumerates connected drives
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\srtasks.exeC:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:22⤵
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C:\Windows\syswow64\MsiExec.exeC:\Windows\syswow64\MsiExec.exe -Embedding 00ADC764FA5BF163F9CFBDD19A516E672⤵
- Loads dropped DLL
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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C:\Config.Msi\e5800d9.rbsFilesize
73KB
MD5c3abd236987d2dbbdf229439a7461a99
SHA1e8ba3d997732f226734b51c01ee37414782fc605
SHA2565cac97a86bb618ceccebc6030c3fb33cb248ac34597a20f68adfab222185a9cf
SHA5122e71d39c632f80f55bef71feec455e679ec140f86c2091609e06cfba09400baf5140e63d850b10ca1d4e6772ea48437fce787a838395844d8d01a3d452c687e5
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\vcredis1.cabFilesize
247KB
MD5cc064d4b81619991de8131a86ad77681
SHA188d80d86cc20c27d7d2a872af719300bd2bb73f9
SHA256913ee5a1cae3e5a1872b3a5efaaa00c58e4beb692492b138f76967da671b0477
SHA5125aff0eb26cfc187bf58721b2b6d73357d9f1e66d1ac5340ad9ddc08b40ad0eda27a144cb3b650604637a7476c282ded83ed890de98a73ccaf0cc021da3a9eb25
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\vcredist.msiFilesize
2.6MB
MD5b20bbeb818222b657df49a9cfe4fed79
SHA13f6508e880b86502773a3275bc9527f046d45502
SHA25691bdd063f6c53126737791c9eccf0b2f4cf44927831527245bc89a0be06c0cb4
SHA512f534bc7bf1597e728940e6c3b77f864adfaa413bb1e080458326b692b0f96bddf4fbd294eeed36d7764a3578e6c8e919488bbf63b8fe2d4355ab3efd685424a4
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C:\Windows\Installer\MSI50C.tmpFilesize
28KB
MD585221b3bcba8dbe4b4a46581aa49f760
SHA1746645c92594bfc739f77812d67cfd85f4b92474
SHA256f6e34a4550e499346f5ab1d245508f16bf765ff24c4988984b89e049ca55737f
SHA512060e35c4de14a03a2cda313f968e372291866cc4acd59977d7a48ac3745494abc54df83fff63cf30be4e10ff69a3b3c8b6c38f43ebd2a8d23d6c86fbee7ba87d
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\??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2Filesize
23.7MB
MD5b28dd6b6d23ae1fb765a0ccbc469392e
SHA1edfdd6626c3d8ff8157a41fbe7236ef6369587fc
SHA25631bd87380f80e24d887b6654990dc6b4981512fb83e6f9205b76f3aeca982c91
SHA5125150a3457d1171674f3d33cf4679ccdc97a4966ad630f37b78935c0d730a12ca32ac2dfe646a63927f0126371a6d57c623679c0e19355dd71727f82ab467f900
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\??\Volume{0e54dc8f-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{8693185c-fb44-4ec9-994d-00e77a56e7e1}_OnDiskSnapshotPropFilesize
6KB
MD5b3da82bbe8cf7ea4706a4b16a0449274
SHA1ee49a1c82f91b492d77a4c04bb42b9a7f5d7592e
SHA25631b606aa027384c2d451acef933553412eac33c8f58c900ebb7631fe878c259c
SHA512fe54fed5ead1bdb45fc002aa4f1ee4d7dc96154f5c488230e018712d5099dd20e48a6b73748bd385559c01996ae175651871448681fee965bcd29055a4f2e65e