Analysis
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max time kernel
150s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20230221-en -
resource tags
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submitted
29-03-2023 03:11
General
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Target
VirusShare_ad9b251b3d3d8a38fb99d90964109e65.exe
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Size
96KB
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MD5
ad9b251b3d3d8a38fb99d90964109e65
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SHA1
3020fe2707fbe986fc9577c7d6e7ae94cb2213b2
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SHA256
eb740005273c087baf42b0c3a49a7c5b7225256681106c72567db92fc2048ada
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SHA512
a419d268857830ae6f5f090fcce65fae0d70cbd82295413bd9226e9e4f631f5ab62be24df4098f3103cfe8a85f868cd464744026696ab1433d6763c493f17558
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SSDEEP
1536:FkcgYgbig9EhjWNMSTdwp++lx/ynQ4uYF/9kcgYgbig9EhjWNMSTdwp++lxT:Fj8ijWNw++lf4Pzj8ijWNw++lN
Malware Config
Extracted
C:\info.hta
class='mark'>[email protected]</span></div>
http://www.w3.org/TR/html4/strict.dtd'>
Extracted
C:\users\public\desktop\info.hta
Signatures
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Phobos
Phobos ransomware appeared at the beginning of 2019.
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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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Modifies extensions of user files 2 IoCs
Ransomware generally changes the extension on encrypted files.
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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 39 IoCs
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Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\VirusShare_ad9b251b3d3d8a38fb99d90964109e65.exe"C:\Users\Admin\AppData\Local\Temp\VirusShare_ad9b251b3d3d8a38fb99d90964109e65.exe"1⤵
- Modifies extensions of user files
- 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\VirusShare_ad9b251b3d3d8a38fb99d90964109e65.exe"C:\Users\Admin\AppData\Local\Temp\VirusShare_ad9b251b3d3d8a38fb99d90964109e65.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\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\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\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)
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.7MB
MD5c1d83929954ea3aa93a540586180e896
SHA142bb159b4424577f746c1242e407441717027637
SHA256a74f0c003637dfdad7aea8aa698475dc4e0df6d2876fcfa96b452f03a3d33b2e
SHA512baeb1447c5c47b52be9dcaf3018cd0ff82db80e74c6b3ab03c64c8821879bc39237052a860f3be0dc3c5785f2abaab64dff0570558ea8dd7b92cb8fa71c71ad6
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Filesize
5KB
MD5f3d34d3fbc31d590f4b9d08bf21e629d
SHA1c1f4c6a6a9c0263b0852cf653666f1326585d7f0
SHA256de3c465c2ea35594cb678d201426c64f078ba4457824776ab809e194bc40df00
SHA51269b105a30c7ea0ec79eb31a9f5d19dabf130b70f6f32b57f4965f8e8c356afa9bac87e67969f7a0bfaaa0accacd45bdc606c745eb8a0ca2e35db596ada7bb087
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Filesize
5KB
MD5f3d34d3fbc31d590f4b9d08bf21e629d
SHA1c1f4c6a6a9c0263b0852cf653666f1326585d7f0
SHA256de3c465c2ea35594cb678d201426c64f078ba4457824776ab809e194bc40df00
SHA51269b105a30c7ea0ec79eb31a9f5d19dabf130b70f6f32b57f4965f8e8c356afa9bac87e67969f7a0bfaaa0accacd45bdc606c745eb8a0ca2e35db596ada7bb087
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Filesize
5KB
MD5f3d34d3fbc31d590f4b9d08bf21e629d
SHA1c1f4c6a6a9c0263b0852cf653666f1326585d7f0
SHA256de3c465c2ea35594cb678d201426c64f078ba4457824776ab809e194bc40df00
SHA51269b105a30c7ea0ec79eb31a9f5d19dabf130b70f6f32b57f4965f8e8c356afa9bac87e67969f7a0bfaaa0accacd45bdc606c745eb8a0ca2e35db596ada7bb087
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Filesize
5KB
MD5f3d34d3fbc31d590f4b9d08bf21e629d
SHA1c1f4c6a6a9c0263b0852cf653666f1326585d7f0
SHA256de3c465c2ea35594cb678d201426c64f078ba4457824776ab809e194bc40df00
SHA51269b105a30c7ea0ec79eb31a9f5d19dabf130b70f6f32b57f4965f8e8c356afa9bac87e67969f7a0bfaaa0accacd45bdc606c745eb8a0ca2e35db596ada7bb087