Resubmissions
23-08-2021 09:03
210823-vqq93xpzhj 1012-08-2021 21:11
210812-xvzjbhw2q2 1008-08-2021 17:49
210808-rjh11mmpt6 10Analysis
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max time kernel
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max time network
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platform
windows7_x64 -
resource
win7v20210408 -
submitted
23-08-2021 09:03
General
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Target
0abb4a302819cdca6c9f56893ca2b52856b55a0aa68a3cb8bdcd55dcc1fad9ad.bin.exe
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Size
1.2MB
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MD5
cc3652c078fa2bdfbbfae33335c30bda
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SHA1
b3d3ad0c2c9d526717f55c431d51c2f1e957325b
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SHA256
0abb4a302819cdca6c9f56893ca2b52856b55a0aa68a3cb8bdcd55dcc1fad9ad
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SHA512
d027e1df8c10516b81e47ef840f0e2baf971c0e0c4e77ff0fdc0122bbbb66ed210fd78336cb40d05c76d91838ae89ebb3304050dbf7fb7eeec73d47d1d26ec3d
Malware Config
Signatures
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
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Deletes System State backups 3 TTPs 2 IoCs
Uses wbadmin.exe to inhibit system recovery.
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Drops file in Drivers directory 13 IoCs
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Modifies extensions of user files 24 IoCs
Ransomware generally changes the extension on encrypted files.
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Deletes itself 1 IoCs
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 2 IoCs
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Drops desktop.ini file(s) 1 IoCs
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Enumerates connected drives 3 TTPs 41 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
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Drops file in System32 directory 64 IoCs
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Drops file in Program Files directory 64 IoCs
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Drops file in Windows directory 64 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Interacts with shadow copies 2 TTPs 13 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
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Modifies Internet Explorer settings 1 TTPs 38 IoCs
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Opens file in notepad (likely ransom note) 1 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of AdjustPrivilegeToken 23 IoCs
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Suspicious use of FindShellTrayWindow 1 IoCs
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Suspicious use of SetWindowsHookEx 7 IoCs
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Suspicious use of WriteProcessMemory 61 IoCs
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System policy modification 1 TTPs 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\0abb4a302819cdca6c9f56893ca2b52856b55a0aa68a3cb8bdcd55dcc1fad9ad.bin.exe"C:\Users\Admin\AppData\Local\Temp\0abb4a302819cdca6c9f56893ca2b52856b55a0aa68a3cb8bdcd55dcc1fad9ad.bin.exe"1⤵
- Drops file in Drivers directory
- Modifies extensions of user files
- Adds Run key to start application
- Drops desktop.ini file(s)
- Enumerates connected drives
- Drops file in System32 directory
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- System policy modification
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C:\Windows\system32\vssadmin.exevssadmin.exe Resize ShadowStorage /for=c: /on=c: /maxsize=401MB2⤵
- Interacts with shadow copies
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C:\Windows\system32\vssadmin.exevssadmin.exe Resize ShadowStorage /for=c: /on=c: /maxsize=unbounded2⤵
- Interacts with shadow copies
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C:\Windows\system32\vssadmin.exevssadmin.exe Resize ShadowStorage /for=d: /on=d: /maxsize=401MB2⤵
- Enumerates connected drives
- Interacts with shadow copies
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C:\Windows\system32\vssadmin.exevssadmin.exe Resize ShadowStorage /for=d: /on=d: /maxsize=unbounded2⤵
- Enumerates connected drives
- Interacts with shadow copies
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C:\Windows\system32\vssadmin.exevssadmin.exe Resize ShadowStorage /for=e: /on=e: /maxsize=401MB2⤵
- Enumerates connected drives
- Interacts with shadow copies
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C:\Windows\system32\vssadmin.exevssadmin.exe Resize ShadowStorage /for=e: /on=e: /maxsize=unbounded2⤵
- Enumerates connected drives
- Interacts with shadow copies
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C:\Windows\system32\vssadmin.exevssadmin.exe Resize ShadowStorage /for=f: /on=f: /maxsize=401MB2⤵
- Enumerates connected drives
- Interacts with shadow copies
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C:\Windows\system32\vssadmin.exevssadmin.exe Resize ShadowStorage /for=f: /on=f: /maxsize=unbounded2⤵
- Enumerates connected drives
- Interacts with shadow copies
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C:\Windows\system32\vssadmin.exevssadmin.exe Resize ShadowStorage /for=g: /on=g: /maxsize=401MB2⤵
- Enumerates connected drives
- Interacts with shadow copies
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C:\Windows\system32\vssadmin.exevssadmin.exe Resize ShadowStorage /for=g: /on=g: /maxsize=unbounded2⤵
- Enumerates connected drives
- Interacts with shadow copies
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C:\Windows\system32\vssadmin.exevssadmin.exe Resize ShadowStorage /for=h: /on=h: /maxsize=401MB2⤵
- Enumerates connected drives
- Interacts with shadow copies
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C:\Windows\system32\vssadmin.exevssadmin.exe Resize ShadowStorage /for=h: /on=h: /maxsize=unbounded2⤵
- Enumerates connected drives
- Interacts with shadow copies
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C:\Windows\system32\vssadmin.exevssadmin.exe Delete Shadows /All /Quiet2⤵
- Interacts with shadow copies
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C:\Windows\system32\bcdedit.exebcdedit.exe /set {default} recoveryenabled No2⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit.exe /set {default} bootstatuspolicy ignoreallfailures2⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\wbadmin.exewbadmin DELETE SYSTEMSTATEBACKUP2⤵
- Deletes System State backups
- Drops file in Windows directory
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C:\Windows\system32\wbadmin.exewbadmin DELETE SYSTEMSTATEBACKUP -deleteOldest2⤵
- Deletes System State backups
- Drops file in Windows directory
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C:\Windows\System32\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive2⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\0ABB4A~1.EXE >> NUL2⤵
- Deletes itself
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\README_LOCK.TXT1⤵
- Opens file in notepad (likely ransom note)
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Public\Desktop\!!!HOW_TO_DECRYPT!!!.mht1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1052 CREDAT:275457 /prefetch:22⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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MD5
3c9ff0d034c75e038a0ae611b54698ba
SHA12dcad5966f213870dccd275eeac2018181f05c5f
SHA25682055c3a096216cb2b88aa6c0de90badd90cdb8e4b5b506f54f967833558be06
SHA512bae970bc0fc696c59bf4c457c6dc63902d2b85388b6aa3215ff88abd55bbe785978c2bd0de1e1f2deddf124fa0efd1c6ebaf5f982351003f2447202163a9b1a2
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MD5
a6cd2b20f7df6fb7653061147d00ddbc
SHA1d4cc238b4618ed27ccf5932b4e4e6ed048cf56fc
SHA256f3109a33ed82755faeb1377ab288f0209f74237ab85d8002fe5cdc018f02d193
SHA5122e00ad7d12c65e162855c10665d148a5f5a75317560218d04952a9200a7fbdb97c2d313afaf35f6c42898d4a5a7e48791dbab87f16e4107833e7063f617434c6
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Filesize
8KB
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