Analysis
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max time kernel
140s -
max time network
172s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
12-07-2021 14:33
Static task
static1
Behavioral task
behavioral1
Sample
b.exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
General
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Target
b.exe
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Size
212KB
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MD5
6afa5dec92e5dead749079cbac762b33
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SHA1
baa768c3cdc1b1dac9f4b556a3757d17d68b6498
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SHA256
becd302b33c38ca20a179ba9c54c6f47e6edfb8fa3e50ba9240e5ca81d1ec709
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SHA512
d24333d5f67d66752484f47191f56b74ca9088ac28bdd97b9b24408737ac6b20e5d8446ff4069628b5c7eee1dcee2e69028e1ac9fe66bdbf2db8adfe362ffd3b
Malware Config
Signatures
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Drops file in System32 directory 1 IoCs
Processes:
storageprovider.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat storageprovider.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies data under HKEY_USERS 29 IoCs
Processes:
storageprovider.exestorageprovider.exedescription ioc process Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{08244EE6-92F0-47F2-9FC9-929BAA2E7235} {0C6C4200-C589-11D0-999A-00C04FD655E1} 0xFFFF = 0100000000000000f0419d7f2a77d701 storageprovider.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 storageprovider.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad storageprovider.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2A905F01-0A57-4E51-8685-54144DDC3A32} storageprovider.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{99FD978C-D287-4F50-827F-B2C658EDA8E7} {0C6C4200-C589-11D0-999A-00C04FD655E1} 0xFFFF = 010000000000000080dd947f2a77d701 storageprovider.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{16F3DD56-1AF5-4347-846D-7C10C4192619} {0C6C4200-C589-11D0-999A-00C04FD655E1} 0xFFFF = 0100000000000000b0349a7f2a77d701 storageprovider.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections storageprovider.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 storageprovider.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings storageprovider.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a070023000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 storageprovider.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2a-54-58-63-74-ad storageprovider.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{AB5C5600-7E6E-4B06-9197-9ECEF74D31CC} {0C6C4200-C589-11D0-999A-00C04FD655E1} 0xFFFF = 01000000000000002064967f2a77d701 storageprovider.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{2916C86E-86A6-43FE-8112-43ABE6BF8DCC} {0C6C4200-C589-11D0-999A-00C04FD655E1} 0xFFFF = 010000000000000060e29b7f2a77d701 storageprovider.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings storageprovider.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" storageprovider.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2A905F01-0A57-4E51-8685-54144DDC3A32}\WpadDecision = "0" storageprovider.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached storageprovider.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2a-54-58-63-74-ad\WpadDecisionReason = "1" storageprovider.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix storageprovider.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" storageprovider.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2A905F01-0A57-4E51-8685-54144DDC3A32}\2a-54-58-63-74-ad storageprovider.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2a-54-58-63-74-ad\WpadDecisionTime = 1026e4842a77d701 storageprovider.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" storageprovider.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2A905F01-0A57-4E51-8685-54144DDC3A32}\WpadDecisionTime = 1026e4842a77d701 storageprovider.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{920E6DB1-9907-4370-B3A0-BAFC03D81399} {0C6C4200-C589-11D0-999A-00C04FD655E1} 0xFFFF = 0100000000000000c0ea977f2a77d701 storageprovider.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2A905F01-0A57-4E51-8685-54144DDC3A32}\WpadDecisionReason = "1" storageprovider.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2A905F01-0A57-4E51-8685-54144DDC3A32}\WpadNetworkName = "Network" storageprovider.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2a-54-58-63-74-ad\WpadDecision = "0" storageprovider.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{D9144DCD-E998-4ECA-AB6A-DCD83CCBA16D} {0C6C4200-C589-11D0-999A-00C04FD655E1} 0xFFFF = 01000000000000007045927f2a77d701 storageprovider.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
storageprovider.exepid process 572 storageprovider.exe 572 storageprovider.exe 572 storageprovider.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
b.exepid process 1756 b.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
b.exestorageprovider.exedescription pid process target process PID 2028 wrote to memory of 1756 2028 b.exe b.exe PID 2028 wrote to memory of 1756 2028 b.exe b.exe PID 2028 wrote to memory of 1756 2028 b.exe b.exe PID 2028 wrote to memory of 1756 2028 b.exe b.exe PID 524 wrote to memory of 572 524 storageprovider.exe storageprovider.exe PID 524 wrote to memory of 572 524 storageprovider.exe storageprovider.exe PID 524 wrote to memory of 572 524 storageprovider.exe storageprovider.exe PID 524 wrote to memory of 572 524 storageprovider.exe storageprovider.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b.exe"C:\Users\Admin\AppData\Local\Temp\b.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\b.exe"C:\Users\Admin\AppData\Local\Temp\b.exe"2⤵
- Suspicious behavior: RenamesItself
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C:\Windows\SysWOW64\storageprovider.exeC:\Windows\SysWOW64\storageprovider.exe1⤵
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\storageprovider.exe"C:\Windows\SysWOW64\storageprovider.exe"2⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/524-73-0x0000000001130000-0x000000000113D000-memory.dmpFilesize
52KB
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memory/524-76-0x0000000001130000-0x000000000113D000-memory.dmpFilesize
52KB
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memory/572-77-0x0000000000000000-mapping.dmp
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memory/572-79-0x0000000000AA0000-0x0000000000AAD000-memory.dmpFilesize
52KB
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memory/572-82-0x0000000000AA0000-0x0000000000AAD000-memory.dmpFilesize
52KB
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memory/1756-66-0x0000000000000000-mapping.dmp
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memory/1756-68-0x00000000004B0000-0x00000000004BD000-memory.dmpFilesize
52KB
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memory/1756-71-0x00000000004B0000-0x00000000004BD000-memory.dmpFilesize
52KB
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memory/2028-60-0x00000000765F1000-0x00000000765F3000-memory.dmpFilesize
8KB
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memory/2028-61-0x00000000003E0000-0x00000000003ED000-memory.dmpFilesize
52KB
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memory/2028-62-0x00000000003F0000-0x00000000003FD000-memory.dmpFilesize
52KB
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memory/2028-65-0x00000000003F0000-0x00000000003FD000-memory.dmpFilesize
52KB