Analysis
-
max time kernel
150s -
max time network
30s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
-
submitted
21-04-2023 02:06
General
-
Target
c21de9109580e03f0fc0a71c10bfe2923927eb0dfe748bea47d550f1fe7f1715.exe
-
Size
56KB
-
MD5
c3ccde9c3fab53d5c749b2186e997bdc
-
SHA1
b494a696f4edbbd3831163dfd0f1b5efc134d068
-
SHA256
c21de9109580e03f0fc0a71c10bfe2923927eb0dfe748bea47d550f1fe7f1715
-
SHA512
2b72d43c3eba735ed69807f858ff59685df91fb7012d7bd868a08f0563c00832310fe9d7d160d5b633bc49c1f1d4b7c20c6ab2d9a39eea33ff8d00b683ccb586
-
SSDEEP
1536:SNeRBl5PT/rx1mzwRMSTdLpJcQvW5NoDXMmX9S/b8V:SQRrmzwR5JsNoDcmXI/b8V
Malware Config
Extracted
C:\Users\Public\Desktop\info.hta
class='mark'>[email protected]</span></div>
http://www.w3.org/TR/html4/strict.dtd'>
Extracted
C:\users\public\desktop\info.hta
Signatures
-
Phobos
Phobos ransomware appeared at the beginning of 2019.
-
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
-
Modifies boot configuration data using bcdedit 1 TTPs 4 IoCs
-
Deletes backup catalog 3 TTPs 2 IoCs
Uses wbadmin.exe to inhibit system recovery.
-
Modifies Windows Firewall 1 TTPs 2 IoCs
-
Modifies extensions of user files 2 IoCs
Ransomware generally changes the extension on encrypted files.
-
Drops startup file 3 IoCs
-
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Adds Run key to start application 2 TTPs 2 IoCs
-
Drops desktop.ini file(s) 64 IoCs
-
Drops file in Program Files directory 64 IoCs
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
-
Modifies Internet Explorer settings 1 TTPs 3 IoCs
-
Suspicious behavior: EnumeratesProcesses 64 IoCs
-
Suspicious use of AdjustPrivilegeToken 64 IoCs
-
Suspicious use of WriteProcessMemory 60 IoCs
-
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.
-
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Users\Admin\AppData\Local\Temp\c21de9109580e03f0fc0a71c10bfe2923927eb0dfe748bea47d550f1fe7f1715.exe"C:\Users\Admin\AppData\Local\Temp\c21de9109580e03f0fc0a71c10bfe2923927eb0dfe748bea47d550f1fe7f1715.exe"1⤵
- Modifies extensions of user files
- Drops startup file
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\c21de9109580e03f0fc0a71c10bfe2923927eb0dfe748bea47d550f1fe7f1715.exe"C:\Users\Admin\AppData\Local\Temp\c21de9109580e03f0fc0a71c10bfe2923927eb0dfe748bea47d550f1fe7f1715.exe"2⤵
-
-
C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\netsh.exenetsh advfirewall set currentprofile state off3⤵
- Modifies Windows Firewall
-
-
C:\Windows\system32\netsh.exenetsh firewall set opmode mode=disable3⤵
- Modifies Windows Firewall
-
-
-
C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
-
-
C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
-
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
-
-
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- Deletes backup catalog
-
-
-
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\info.hta"2⤵
- Modifies Internet Explorer settings
-
-
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\desktop\info.hta"2⤵
- Modifies Internet Explorer settings
-
-
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\info.hta"2⤵
- Modifies Internet Explorer settings
-
-
C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
-
-
C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
-
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
-
-
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- Deletes backup catalog
-
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵
-
C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
143.1MB
MD5c784f6cc3dc8d0d459880fac86a2901e
SHA1400c81d9ea8f269b251ff03c6325a297eba2c055
SHA2564a8243248e00a11434ca298642b3522bd43c8c6af431e16e6e34e770d69ae782
SHA512f4104a7d7aa5800df7b4289b80ba40537cb926029a41609e887e55e731502ba3de61b4d5c64a897b2384e7bb4fd9b2ce57f960862634652dc065ffb0a46501e7
-
Filesize
4KB
MD519ff6b267f1d13869dcdda17d60a9eb3
SHA1a48dc28d9ca390c09a5da73036cbf0a30c40a5a2
SHA2566a9ea31ed9189adb25ed0fa055460bf823b3c6a0e073b33165878898aad135f0
SHA512d7ba357171ae3ac552ba89028480df598a13c72febde6b96bb03f1520869f3f8b597ce120bc09abde1d8f22b3efc9ec8e58e5f3306f311119c4c67341f7820f7
-
Filesize
4KB
MD519ff6b267f1d13869dcdda17d60a9eb3
SHA1a48dc28d9ca390c09a5da73036cbf0a30c40a5a2
SHA2566a9ea31ed9189adb25ed0fa055460bf823b3c6a0e073b33165878898aad135f0
SHA512d7ba357171ae3ac552ba89028480df598a13c72febde6b96bb03f1520869f3f8b597ce120bc09abde1d8f22b3efc9ec8e58e5f3306f311119c4c67341f7820f7
-
Filesize
4KB
MD519ff6b267f1d13869dcdda17d60a9eb3
SHA1a48dc28d9ca390c09a5da73036cbf0a30c40a5a2
SHA2566a9ea31ed9189adb25ed0fa055460bf823b3c6a0e073b33165878898aad135f0
SHA512d7ba357171ae3ac552ba89028480df598a13c72febde6b96bb03f1520869f3f8b597ce120bc09abde1d8f22b3efc9ec8e58e5f3306f311119c4c67341f7820f7
-
Filesize
4KB
MD519ff6b267f1d13869dcdda17d60a9eb3
SHA1a48dc28d9ca390c09a5da73036cbf0a30c40a5a2
SHA2566a9ea31ed9189adb25ed0fa055460bf823b3c6a0e073b33165878898aad135f0
SHA512d7ba357171ae3ac552ba89028480df598a13c72febde6b96bb03f1520869f3f8b597ce120bc09abde1d8f22b3efc9ec8e58e5f3306f311119c4c67341f7820f7