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Analysis
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max time kernel
148s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
05/03/2024, 17:53
Static task
static1
Behavioral task
behavioral1
Sample
b54d5805dbdd7bab5717cb8721b298af.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
b54d5805dbdd7bab5717cb8721b298af.exe
Resource
win10v2004-20240226-en
General
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Target
b54d5805dbdd7bab5717cb8721b298af.exe
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Size
1.1MB
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MD5
b54d5805dbdd7bab5717cb8721b298af
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SHA1
d86c2fbadf679b48c296d0f3c72a9e19854afb9f
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SHA256
a456f230d9e716dd0d3d7a07af50f4f51e6d2c941a7f875de98458192268505e
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SHA512
b81a24a540eb5a5bfdddec74bab1aebe9b760000c0cf0501e001cb4c8b5cde5c5af89798fa3754d5d0c2a36fb7def33c00615cab7ee8c62d52939d40c5411ce4
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SSDEEP
24576:ZiNzy/uFX7TWX1c4BLZJD99SjA9mGajHA+svnJheAERzltAWNfk:kySfaD9E8qA+B
Malware Config
Signatures
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Ardamax main executable 2 IoCs
resource yara_rule behavioral1/files/0x0007000000018b42-23.dat family_ardamax behavioral1/files/0x0007000000018b42-61.dat family_ardamax -
Executes dropped EXE 2 IoCs
pid Process 2300 Install.exe 3040 RVBR.exe -
Loads dropped DLL 11 IoCs
pid Process 1412 b54d5805dbdd7bab5717cb8721b298af.exe 2300 Install.exe 2300 Install.exe 2300 Install.exe 2300 Install.exe 2300 Install.exe 3040 RVBR.exe 3040 RVBR.exe 3040 RVBR.exe 3040 RVBR.exe 3040 RVBR.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\RVBR Agent = "C:\\Windows\\SysWOW64\\28463\\RVBR.exe" RVBR.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops file in System32 directory 9 IoCs
description ioc Process File created C:\Windows\SysWOW64\28463\RVBR.007 Install.exe File created C:\Windows\SysWOW64\28463\key.bin Install.exe File opened for modification C:\Windows\SysWOW64\28463 RVBR.exe File created C:\Windows\SysWOW64\28463\RVBR.001 Install.exe File created C:\Windows\SysWOW64\28463\RVBR.006 Install.exe File created C:\Windows\SysWOW64\28463\RVBR.exe Install.exe File created C:\Windows\SysWOW64\28463\AKV.exe Install.exe File created C:\Windows\SysWOW64\28463\RVBR.009 RVBR.exe File opened for modification C:\Windows\SysWOW64\28463\RVBR.009 RVBR.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 38 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0030AEB1-985D-466E-ACB2-FCDE23682774}\ProgID\ = "AMOVIE.ActiveMovieControl.2" RVBR.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0030AEB1-985D-466E-ACB2-FCDE23682774}\TypeLib\ = "{FBB5B14A-535F-7182-4B46-32FEE800D223}" RVBR.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0030AEB1-985D-466E-ACB2-FCDE23682774}\InprocServer32 RVBR.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0030AEB1-985D-466E-ACB2-FCDE23682774}\InprocServer32\ RVBR.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB5B14A-535F-7182-4B46-32FEE800D223}\1.0\ = "GrooveApplicationDescriptorServicesAlpha" RVBR.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0030AEB1-985D-466E-ACB2-FCDE23682774}\VersionIndependentProgID RVBR.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB5B14A-535F-7182-4B46-32FEE800D223}\1.0\FLAGS\ = "4" RVBR.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0030AEB1-985D-466E-ACB2-FCDE23682774}\TypeLib RVBR.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0030AEB1-985D-466E-ACB2-FCDE23682774}\Version RVBR.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB5B14A-535F-7182-4B46-32FEE800D223}\1.0\FLAGS RVBR.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB5B14A-535F-7182-4B46-32FEE800D223}\1.0\FLAGS\ RVBR.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB5B14A-535F-7182-4B46-32FEE800D223}\1.0\HELPDIR RVBR.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0030AEB1-985D-466E-ACB2-FCDE23682774}\ = "Ciledi.Oleba.Rexam object" RVBR.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0030AEB1-985D-466E-ACB2-FCDE23682774}\ToolboxBitmap32\ RVBR.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB5B14A-535F-7182-4B46-32FEE800D223}\ RVBR.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB5B14A-535F-7182-4B46-32FEE800D223}\1.0 RVBR.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB5B14A-535F-7182-4B46-32FEE800D223}\1.0\0\win32\ RVBR.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0030AEB1-985D-466E-ACB2-FCDE23682774}\Version\ = "2.0" RVBR.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0030AEB1-985D-466E-ACB2-FCDE23682774}\VersionIndependentProgID\ = "AMOVIE.ActiveMovieControl" RVBR.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0030AEB1-985D-466E-ACB2-FCDE23682774}\MiscStatus\ RVBR.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB5B14A-535F-7182-4B46-32FEE800D223}\1.0\ RVBR.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB5B14A-535F-7182-4B46-32FEE800D223}\1.0\0\win32\ = "C:\\PROGRA~2\\MICROS~1\\Office14\\GROOVE.EXE\\132" RVBR.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB5B14A-535F-7182-4B46-32FEE800D223}\1.0\HELPDIR\ RVBR.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB5B14A-535F-7182-4B46-32FEE800D223}\1.0\HELPDIR\ = "C:\\Program Files (x86)\\Microsoft Office\\Office14\\" RVBR.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0030AEB1-985D-466E-ACB2-FCDE23682774}\ToolboxBitmap32 RVBR.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB5B14A-535F-7182-4B46-32FEE800D223}\1.0\0 RVBR.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB5B14A-535F-7182-4B46-32FEE800D223}\1.0\0\ RVBR.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0030AEB1-985D-466E-ACB2-FCDE23682774}\Version\ RVBR.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0030AEB1-985D-466E-ACB2-FCDE23682774}\VersionIndependentProgID\ RVBR.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0030AEB1-985D-466E-ACB2-FCDE23682774} RVBR.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0030AEB1-985D-466E-ACB2-FCDE23682774}\InprocServer32\ = "C:\\Windows\\SysWOW64\\wmpdxm.dll" RVBR.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0030AEB1-985D-466E-ACB2-FCDE23682774}\MiscStatus\ = "0" RVBR.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0030AEB1-985D-466E-ACB2-FCDE23682774}\ProgID RVBR.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0030AEB1-985D-466E-ACB2-FCDE23682774}\ProgID\ RVBR.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0030AEB1-985D-466E-ACB2-FCDE23682774}\MiscStatus RVBR.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB5B14A-535F-7182-4B46-32FEE800D223} RVBR.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB5B14A-535F-7182-4B46-32FEE800D223}\1.0\0\win32 RVBR.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0030AEB1-985D-466E-ACB2-FCDE23682774}\TypeLib\ RVBR.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: 33 3040 RVBR.exe Token: SeIncBasePriorityPrivilege 3040 RVBR.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3040 RVBR.exe -
Suspicious use of SendNotifyMessage 1 IoCs
pid Process 3040 RVBR.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 3040 RVBR.exe 3040 RVBR.exe 3040 RVBR.exe 3040 RVBR.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 1412 wrote to memory of 2300 1412 b54d5805dbdd7bab5717cb8721b298af.exe 28 PID 1412 wrote to memory of 2300 1412 b54d5805dbdd7bab5717cb8721b298af.exe 28 PID 1412 wrote to memory of 2300 1412 b54d5805dbdd7bab5717cb8721b298af.exe 28 PID 1412 wrote to memory of 2300 1412 b54d5805dbdd7bab5717cb8721b298af.exe 28 PID 1412 wrote to memory of 2300 1412 b54d5805dbdd7bab5717cb8721b298af.exe 28 PID 1412 wrote to memory of 2300 1412 b54d5805dbdd7bab5717cb8721b298af.exe 28 PID 1412 wrote to memory of 2300 1412 b54d5805dbdd7bab5717cb8721b298af.exe 28 PID 2300 wrote to memory of 3040 2300 Install.exe 29 PID 2300 wrote to memory of 3040 2300 Install.exe 29 PID 2300 wrote to memory of 3040 2300 Install.exe 29 PID 2300 wrote to memory of 3040 2300 Install.exe 29 PID 2300 wrote to memory of 3040 2300 Install.exe 29 PID 2300 wrote to memory of 3040 2300 Install.exe 29 PID 2300 wrote to memory of 3040 2300 Install.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\b54d5805dbdd7bab5717cb8721b298af.exe"C:\Users\Admin\AppData\Local\Temp\b54d5805dbdd7bab5717cb8721b298af.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1412 -
C:\Users\Admin\AppData\Local\Temp\Install.exe"C:\Users\Admin\AppData\Local\Temp\Install.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2300 -
C:\Windows\SysWOW64\28463\RVBR.exe"C:\Windows\system32\28463\RVBR.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:3040
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
64KB
MD5c11aba177d59b59c65dbc75e0026fa9e
SHA1e93913c3748de3a0ba131d1fa96dd16019262c6e
SHA256b63e603c8f0511f69751ddb8ecb29f5cf9dddff80f5da558e50afe0effcb5282
SHA5120a5c92b0b0854f3b893362b0bd2719cf5965e03c1fadf9b20a3ef508d972ae9fb144554c77f4d83f9fb46e0cfe37f6cd23058316a8c051370299f4c5667de9b5
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Filesize
457KB
MD546ccfd974518e5849738449034a05a17
SHA1d391108816aed7ba8f7beb205ad7171c74eae6b2
SHA256571aae1f8a260909dbc45c67b4c547fc573c07097b36d4e18db0e36d91deccfe
SHA512773a40a37ebc54cbde7c40ca98001150e78da43726e475f1ee25ef869a39682c0fcd46fb57cf6130151cd8115aa6f2c196e57414affe464fd3b137eb5b317a7a
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Filesize
388B
MD511d3d9802c46a9a86fa765854a3f5eb8
SHA15db7410ebd41d880b50251e01f11fcdefff853d6
SHA256948dbed176118c1b36d2bc443c9236f1df0436ebbf75fcd11dbfc398f2e982cf
SHA512dc36edbd798a2c7afe3dfe402492775fcd0589726548489beef83d5576abc8072c506df04b0b8d886d90a456ea26c5f5f3c98d9a9769890d04ad65f2d0ded22c
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Filesize
8KB
MD5395bbef326fa5ad1216b23f5debf167b
SHA1aa4a7334b5a693b3f0d6f47b568e0d13a593d782
SHA2567c1c4ba8978d3ec53bc6da4d8f9e5e1ca52edf5ccf5ec19ef06b02055ff3b3d1
SHA512dc3f3d7501feb10623807e89f28a0e38bdbbd4a7e2ad964c8ab33c392bde61896fe40bb7773f6309cd59ad9a686decbd81c15b588ac8d311fd2a273ac9410679
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Filesize
5KB
MD51b5e72f0ebd49cf146f9ae68d792ffe5
SHA11e90a69c12b9a849fbbac0670296b07331c1cf87
SHA2568f4485675fe35b14276f5c8af8a6b42f03cf1b5de638355e4c4b28397385e87e
SHA5126364f5581de5aaec09b5d1c4e5745193f981ff93cf91e20c6c9ff56566b5d182ccbdacf9aeed1d7a01460eb21619e14ac4ab31b083a951b45b3b7f9d93a62ffc
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Filesize
105B
MD527c90d4d9b049f4cd00f32ed1d2e5baf
SHA1338a3ea8f1e929d8916ece9b6e91e697eb562550
SHA256172d6f21165fb3ca925e5b000451fd8946920206f7438018c28b158b90cf5ffb
SHA512d73dadb3cf74c647ce5bad5b87d3fb42a212defcba8afb8cf962020b61a0369c0a2b1005797583daf1f1ae88b29b7288bc544a53d643f3519cf604aa0ffd6dae
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Filesize
4KB
MD54b8ed89120fe8ddc31ddba07bc15372b
SHA1181e7ac3d444656f50c1cd02a6832708253428e6
SHA2562ae6b0e14465338be0bc5ad10703f5c823d092ebb8cff7e5a05b7d79c8459b93
SHA51249269b71270b3eda0ddcb399021de9c88f6fd2086cf54fa4898a91e64afe109d44b635d47a5ea9bae7f53a5e968af97fa13bdf699ba00ce879ecadd7bbc8af23
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Filesize
809KB
MD5624cfb18ef0fbb67b17286741cf8aef3
SHA1eefe01dcdd68d1b2e4af387e1622dbc256601dec
SHA2567bf34710e8159022da60b4c530e02e55c2d69cbf78043243d76dce1d73718a16
SHA5120a2fc50267774883b6325960d46c938ba687c46e33e19c98b5ae13b528bb62fd309ad18da8e44972596f70dc20dd909af10749fc5982703890b669f089a4cf2f
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Filesize
429KB
MD5e8fea5e153d5c39828f681b67f2fd000
SHA1426ac1f5ebc8b8e7db28e69286e337ed9b5e2921
SHA2567c71f25d9cc1f773f992263954c0df68bc5e707858d47fb5f1d4f0045dff75a9
SHA512dc85aa79d7707942a72e22a563adb01238991e494cf495ba7869aea8e7e24f8a9bf88cfa31d8e37df3a1106704556cae3fdaaea373d9ada4391b20908a13d649
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Filesize
649KB
MD52bff0c75a04401dada0adfab933e46a7
SHA1364d97f90b137f8e359d998164fb15d474be7bbb
SHA2562aa53bc5da3294817f95d8806effdf28e5af49661a955256c46db2b67cb6e6da
SHA51288b82973d3c042bceb75e12297111fa7b8bd4e2a7a37d26b698c595d8d75ec670cc7aebfa2572206c1b2a4ecbbfa3103affb8bee6d7ef47428a225e2cd1bea3f
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Filesize
635KB
MD5214d09d491964d9a427c8b090649f93b
SHA16b811369e1ff7278cc3e7ff1ff5dc27607922fa9
SHA256b8577e261d9c7ad1bbf8f6a4821449846eb1013e16fbfe1320016c45b85dc641
SHA5121e51ac775cae1b6041832fe559d9064e34e48b47d84f3f537736970f56c8e9921d3ef4808b650c5a3acae7c144fe2d44f73442373578b86221aaeb425fc45827