Analysis
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max time kernel
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max time network
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platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
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submitted
03-11-2022 07:38
General
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Target
cd89fd5bf3049fad64718c190ae014b4c9c0d141e3550d63008c1c5c71d50bd7.exe
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Size
55KB
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MD5
fd0ef924c1edc067cd2298024a7057b0
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SHA1
0a32d7600869f37f0fbe2a5c996cda5111d4a4d1
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SHA256
cd89fd5bf3049fad64718c190ae014b4c9c0d141e3550d63008c1c5c71d50bd7
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SHA512
275efb2d22ceaed29c4c4563782f648663ea752a6b08d4472ba12d29dc76c57b2120c3a5984d08f5a0ebdd3abf68e6ea8af1325ff9eb24830c43c8c489ad44c0
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SSDEEP
1536:HNeRBl5PT/rx1mzwRMSTdLpJ47kmvBMRM:HQRrmzwR5JWk2+
Malware Config
Signatures
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Phobos
Phobos ransomware appeared at the beginning of 2019.
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Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
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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 4 IoCs
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Deletes backup catalog 3 TTPs 2 IoCs
Uses wbadmin.exe to inhibit system recovery.
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Modifies Windows Firewall 1 TTPs 2 IoCs
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Drops startup file 3 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) 64 IoCs
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Drops file in Program Files 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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Checks SCSI registry key(s) 3 TTPs 4 IoCs
SCSI information is often read in order to detect sandboxing environments.
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Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
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Modifies registry class 1 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
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Suspicious use of WriteProcessMemory 42 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\cd89fd5bf3049fad64718c190ae014b4c9c0d141e3550d63008c1c5c71d50bd7.exe"C:\Users\Admin\AppData\Local\Temp\cd89fd5bf3049fad64718c190ae014b4c9c0d141e3550d63008c1c5c71d50bd7.exe"1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\cd89fd5bf3049fad64718c190ae014b4c9c0d141e3550d63008c1c5c71d50bd7.exe"C:\Users\Admin\AppData\Local\Temp\cd89fd5bf3049fad64718c190ae014b4c9c0d141e3550d63008c1c5c71d50bd7.exe"2⤵
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- Deletes backup catalog
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh advfirewall set currentprofile state off3⤵
- Modifies Windows Firewall
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C:\Windows\system32\netsh.exenetsh firewall set opmode mode=disable3⤵
- Modifies Windows Firewall
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\desktop\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- Deletes backup catalog
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s seclogon1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet1⤵
- Interacts with shadow copies
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
4KB
MD5ea7354321d61c94a1027f2c015d2fecf
SHA18d49bae21c5315b85b5341f6a4a852ae991b3b63
SHA256dca9e57b4afa9ea16317e18a222d95c69991bc672a58768685bc06dd956c642c
SHA512190c3b98bd351359075d2d0e314eaaadc2bfb34ddaf7ba0ac7415aa9e23a4d1b638c77acac31df0b7dbcc7948d2ad9c96395b22bb43bd96d0a12e60842f858ec
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Filesize
4KB
MD5ea7354321d61c94a1027f2c015d2fecf
SHA18d49bae21c5315b85b5341f6a4a852ae991b3b63
SHA256dca9e57b4afa9ea16317e18a222d95c69991bc672a58768685bc06dd956c642c
SHA512190c3b98bd351359075d2d0e314eaaadc2bfb34ddaf7ba0ac7415aa9e23a4d1b638c77acac31df0b7dbcc7948d2ad9c96395b22bb43bd96d0a12e60842f858ec
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Filesize
4KB
MD5ea7354321d61c94a1027f2c015d2fecf
SHA18d49bae21c5315b85b5341f6a4a852ae991b3b63
SHA256dca9e57b4afa9ea16317e18a222d95c69991bc672a58768685bc06dd956c642c
SHA512190c3b98bd351359075d2d0e314eaaadc2bfb34ddaf7ba0ac7415aa9e23a4d1b638c77acac31df0b7dbcc7948d2ad9c96395b22bb43bd96d0a12e60842f858ec
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