Analysis
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max time kernel
152s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
17-01-2024 18:33
Static task
static1
Behavioral task
behavioral1
Sample
634e1caf2247addb6bd12dda52dbd4de.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
634e1caf2247addb6bd12dda52dbd4de.exe
Resource
win10v2004-20231215-en
General
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Target
634e1caf2247addb6bd12dda52dbd4de.exe
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Size
58KB
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MD5
634e1caf2247addb6bd12dda52dbd4de
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SHA1
c8237af522b7ff52f5febd54d66a63e193c50aa4
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SHA256
3e23c4a8083651cc4ccdab917272c4b3f3c5fa70acb89e1123a4723c34637156
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SHA512
dc7ecc5e651266263c67fb14e85417364037aaa7a8067583ba5471ab8b98adafacbb3b3afe977637963eb4dbf7aaf655c48eea15c57a8162e870f7f5a3f68f84
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SSDEEP
1536:SFZG2U20yxmLNIF4vUa3PnPVGdEMNLE+JyddKi+tNeRYlHttkpcyK+4QsKgVUlbB:8HCjeiVvmWgeZfzIgN
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 2160 urdvxc.exe -
Executes dropped EXE 4 IoCs
pid Process 2260 urdvxc.exe 1852 urdvxc.exe 1812 urdvxc.exe 2160 urdvxc.exe -
Drops file in System32 directory 3 IoCs
description ioc Process File created C:\Windows\SysWOW64\urdvxc.exe 634e1caf2247addb6bd12dda52dbd4de.exe File opened for modification C:\Windows\SysWOW64\urdvxc.exe 634e1caf2247addb6bd12dda52dbd4de.exe File created C:\Windows\SysWOW64\urdvxc.exe urdvxc.exe -
Drops file in Program Files directory 13 IoCs
description ioc Process File opened for modification C:\Program Files\Java\jdk-1.8\jre\Welcome.html urdvxc.exe File opened for modification C:\Program Files\Java\jdk-1.8\README.html urdvxc.exe File opened for modification C:\Program Files\Java\jdk-1.8\chllsvtv.exe urdvxc.exe File opened for modification C:\Program Files\OutOptimize.html urdvxc.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\PersonaSpy\PersonaSpy.html urdvxc.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\PersonaSpy\tsbknceh.exe urdvxc.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Smart Tag\1033\rvhrjtnt.exe urdvxc.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\revhnlhn.exe urdvxc.exe File opened for modification C:\Program Files\Java\jre-1.8\Welcome.html urdvxc.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\1033\README.HTM urdvxc.exe File opened for modification C:\Program Files\Java\jre-1.8\hcjzqenb.exe urdvxc.exe File opened for modification C:\Program Files\Microsoft Office\Office16\OSPP.HTM urdvxc.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Smart Tag\1033\MCABOUT.HTM urdvxc.exe -
Modifies registry class 40 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\LocalServer32 urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\LocalServer32\ = "C:\\Windows\\SysWOW64\\urdvxc.exe" urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\LocalServer32 urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84} urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\LocalServer32\ = "C:\\Windows\\SysWOW64\\urdvxc.exe" urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D72C442F-6EA9-BFAF-2703-0F262F8765FD} urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AC84F518-2B78-BCFB-E876-EDAE640549C3}\ = "nsrlnvkseeszhtex" urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EB4470BE-3A35-A218-C7F6-4398C8694892}\ = "lrjsjnrskbrscbkh" urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84} urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5DA7E191-3518-8C5E-DAD0-E316016B7509}\ = "rqrknrnxwcvzkkbv" urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9E5B2A0-6DA4-8211-3F09-7196AABBE564} urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9E5B2A0-6DA4-8211-3F09-7196AABBE564}\ = "hnesvxlqzhknbzcb" urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9E5B2A0-6DA4-8211-3F09-7196AABBE564}\LocalServer32 urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EB4470BE-3A35-A218-C7F6-4398C8694892}\LocalServer32\ = "C:\\Program Files\\Microsoft Office\\root\\vfs\\ProgramFilesCommonX64\\Microsoft Shared\\Smart Tag\\1033\\rvhrjtnt.exe" urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4A6452E3-3C33-29C1-AA39-CCC75A03CB0C}\LocalServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\634e1caf2247addb6bd12dda52dbd4de.exe" 634e1caf2247addb6bd12dda52dbd4de.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\ = "jsrlwtrlknbtrlqr" urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\ = "rxlhjzzbhkxqvkjl" urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D72C442F-6EA9-BFAF-2703-0F262F8765FD}\ = "retexqqhrbblhnbl" urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4A6452E3-3C33-29C1-AA39-CCC75A03CB0C}\ = "nwsebeecbjerxnsn" 634e1caf2247addb6bd12dda52dbd4de.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AC84F518-2B78-BCFB-E876-EDAE640549C3}\LocalServer32\ = "C:\\Program Files\\Java\\jre-1.8\\hcjzqenb.exe" urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EB4470BE-3A35-A218-C7F6-4398C8694892} urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EB4470BE-3A35-A218-C7F6-4398C8694892}\LocalServer32 urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4A6452E3-3C33-29C1-AA39-CCC75A03CB0C}\LocalServer32 634e1caf2247addb6bd12dda52dbd4de.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84} urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\LocalServer32\ = "C:\\Windows\\SysWOW64\\urdvxc.exe" urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5DA7E191-3518-8C5E-DAD0-E316016B7509} urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5DA7E191-3518-8C5E-DAD0-E316016B7509}\LocalServer32 urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5DA7E191-3518-8C5E-DAD0-E316016B7509}\LocalServer32\ = "C:\\Program Files\\Java\\jdk-1.8\\jre\\revhnlhn.exe" urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AC84F518-2B78-BCFB-E876-EDAE640549C3}\LocalServer32 urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\LocalServer32\ = "C:\\Windows\\SysWOW64\\urdvxc.exe" urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D72C442F-6EA9-BFAF-2703-0F262F8765FD}\LocalServer32\ = "C:\\Program Files\\Java\\jdk-1.8\\chllsvtv.exe" urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AC84F518-2B78-BCFB-E876-EDAE640549C3} urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9E5B2A0-6DA4-8211-3F09-7196AABBE564}\LocalServer32\ = "C:\\Program Files\\Microsoft Office\\root\\Office16\\PersonaSpy\\tsbknceh.exe" urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4A6452E3-3C33-29C1-AA39-CCC75A03CB0C} 634e1caf2247addb6bd12dda52dbd4de.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\ = "sjrwnchxhzhvchcw" urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\LocalServer32 urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84} urdvxc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\ = "nrjbqskecweehren" urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{66E9A00C-64D1-4956-05AE-619DF5D22A84}\LocalServer32 urdvxc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D72C442F-6EA9-BFAF-2703-0F262F8765FD}\LocalServer32 urdvxc.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2260 urdvxc.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4332 wrote to memory of 2260 4332 634e1caf2247addb6bd12dda52dbd4de.exe 88 PID 4332 wrote to memory of 2260 4332 634e1caf2247addb6bd12dda52dbd4de.exe 88 PID 4332 wrote to memory of 2260 4332 634e1caf2247addb6bd12dda52dbd4de.exe 88 PID 4332 wrote to memory of 1852 4332 634e1caf2247addb6bd12dda52dbd4de.exe 89 PID 4332 wrote to memory of 1852 4332 634e1caf2247addb6bd12dda52dbd4de.exe 89 PID 4332 wrote to memory of 1852 4332 634e1caf2247addb6bd12dda52dbd4de.exe 89 PID 4332 wrote to memory of 2160 4332 634e1caf2247addb6bd12dda52dbd4de.exe 91 PID 4332 wrote to memory of 2160 4332 634e1caf2247addb6bd12dda52dbd4de.exe 91 PID 4332 wrote to memory of 2160 4332 634e1caf2247addb6bd12dda52dbd4de.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\634e1caf2247addb6bd12dda52dbd4de.exe"C:\Users\Admin\AppData\Local\Temp\634e1caf2247addb6bd12dda52dbd4de.exe"1⤵
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4332 -
C:\Windows\SysWOW64\urdvxc.exeC:\Windows\system32\urdvxc.exe /installservice2⤵
- Executes dropped EXE
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
PID:2260
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C:\Windows\SysWOW64\urdvxc.exeC:\Windows\system32\urdvxc.exe /start2⤵
- Executes dropped EXE
- Modifies registry class
PID:1852
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C:\Windows\SysWOW64\urdvxc.exeC:\Windows\system32\urdvxc.exe /uninstallservice patch:C:\Users\Admin\AppData\Local\Temp\634e1caf2247addb6bd12dda52dbd4de.exe2⤵
- Deletes itself
- Executes dropped EXE
- Modifies registry class
PID:2160
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C:\Windows\SysWOW64\urdvxc.exe"C:\Windows\SysWOW64\urdvxc.exe" /service1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Program Files directory
- Modifies registry class
PID:1812
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
58KB
MD5634e1caf2247addb6bd12dda52dbd4de
SHA1c8237af522b7ff52f5febd54d66a63e193c50aa4
SHA2563e23c4a8083651cc4ccdab917272c4b3f3c5fa70acb89e1123a4723c34637156
SHA512dc7ecc5e651266263c67fb14e85417364037aaa7a8067583ba5471ab8b98adafacbb3b3afe977637963eb4dbf7aaf655c48eea15c57a8162e870f7f5a3f68f84