Analysis
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max time kernel
0s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240215-en -
resource tags
arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system -
submitted
08/05/2024, 19:12
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
0bc6930894bab41fb38bdc6f6de066c2b84e526bb4fa99f956e9ee8c2b925bbb.dll
Resource
win7-20240215-en
windows7-x64
4 signatures
150 seconds
General
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Target
0bc6930894bab41fb38bdc6f6de066c2b84e526bb4fa99f956e9ee8c2b925bbb.dll
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Size
882KB
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MD5
7991035faa9b8d0de18aa7042f43980f
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SHA1
70601016ea3b574ac494ef8c5abf6622adfe61ce
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SHA256
0bc6930894bab41fb38bdc6f6de066c2b84e526bb4fa99f956e9ee8c2b925bbb
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SHA512
e5f0b5a1fdffc2596be506856aebc59dbd3cfbe4266146f76c887164a413c6d8a3e9143b1061d6329a12ffcd76b5ed1c7841d418e4109e1da0b79e9da3617661
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SSDEEP
12288:z+kDJB5KMQQ3e7Rh2c4T+7fQdvxyHboPKG5P5blYpecdpaoj4tdx1QV/q:HYByc4ZlxyUPD5xSrjc9QV/
Score
7/10
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2572 B47.tmp -
Loads dropped DLL 2 IoCs
pid Process 1736 regsvr32.exe 1736 regsvr32.exe -
Modifies registry class 24 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AcroAccess.AcrobatAccess.1\CLSID\ = "{C523F39F-9C83-11D3-9094-00104BD0D535}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AcroAccess.AcrobatAccess\CurVer\ = "AcroAccess.AcrobatAccess.1" regsvr32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C523F39F-9C83-11D3-9094-00104BD0D535}\ProgID regsvr32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C523F39F-9C83-11D3-9094-00104BD0D535}\TypeLib regsvr32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C523F39F-9C83-11D3-9094-00104BD0D535} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C523F39F-9C83-11D3-9094-00104BD0D535}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C523F39F-9C83-11D3-9094-00104BD0D535}\ProgID\ = "AcroAccess.AcrobatAccess.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AcroAccess.AcrobatAccess.1\ = "AcrobatAccess Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C523F39F-9C83-11D3-9094-00104BD0D535}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C523F39F-9C83-11D3-9094-00104BD0D535}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C523F39F-9C83-11D3-9094-00104BD0D535}\Programmable regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C523F39F-9C83-11D3-9094-00104BD0D535}\TypeLib\ = "{C523F390-9C83-11D3-9094-00104BD0D535}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C523F39F-9C83-11D3-9094-00104BD0D535}\VersionIndependentProgID regsvr32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C523F39F-9C83-11D3-9094-00104BD0D535}\Programmable regsvr32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C523F39F-9C83-11D3-9094-00104BD0D535}\VersionIndependentProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C523F39F-9C83-11D3-9094-00104BD0D535} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C523F39F-9C83-11D3-9094-00104BD0D535}\ = "AcrobatAccess Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C523F39F-9C83-11D3-9094-00104BD0D535}\VersionIndependentProgID\ = "AcroAccess.AcrobatAccess" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C523F39F-9C83-11D3-9094-00104BD0D535}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0bc6930894bab41fb38bdc6f6de066c2b84e526bb4fa99f956e9ee8c2b925bbb.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AcroAccess.AcrobatAccess\ = "AcrobatAccess Class" regsvr32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C523F39F-9C83-11D3-9094-00104BD0D535}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C523F39F-9C83-11D3-9094-00104BD0D535}\AppID = "{8A523F4F-AB44-4477-BAB0-151E5936D144}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C523F39F-9C83-11D3-9094-00104BD0D535}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AcroAccess.AcrobatAccess\CLSID\ = "{C523F39F-9C83-11D3-9094-00104BD0D535}" regsvr32.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2308 wrote to memory of 1736 2308 regsvr32.exe 28 PID 2308 wrote to memory of 1736 2308 regsvr32.exe 28 PID 2308 wrote to memory of 1736 2308 regsvr32.exe 28 PID 2308 wrote to memory of 1736 2308 regsvr32.exe 28 PID 2308 wrote to memory of 1736 2308 regsvr32.exe 28 PID 2308 wrote to memory of 1736 2308 regsvr32.exe 28 PID 2308 wrote to memory of 1736 2308 regsvr32.exe 28 PID 1736 wrote to memory of 2572 1736 regsvr32.exe 29 PID 1736 wrote to memory of 2572 1736 regsvr32.exe 29 PID 1736 wrote to memory of 2572 1736 regsvr32.exe 29 PID 1736 wrote to memory of 2572 1736 regsvr32.exe 29
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\0bc6930894bab41fb38bdc6f6de066c2b84e526bb4fa99f956e9ee8c2b925bbb.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2308 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\0bc6930894bab41fb38bdc6f6de066c2b84e526bb4fa99f956e9ee8c2b925bbb.dll2⤵
- Loads dropped DLL
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1736 -
C:\Users\Admin\AppData\Local\Temp\B47.tmpC:\Users\Admin\AppData\Local\Temp\B47.tmp3⤵
- Executes dropped EXE
PID:2572
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
145KB
MD5c610e7ccd6859872c585b2a85d7dc992
SHA1362b3d4b72e3add687c209c79b500b7c6a246d46
SHA25614063fc61dc71b9881d75e93a587c27a6daf8779ff5255a24a042beace541041
SHA5128570aad2ae8b5dcba00fc5ebf3dc0ea117e96cc88a83febd820c5811bf617a6431c1367b3eb88332f43f80b30ebe2c298c22dcc44860a075f7b41bf350236666