Analysis
-
max time kernel
150s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20230712-en -
resource tags
-
submitted
14-07-2023 08:06
General
-
Target
a2f3d796dc2c2f474188db58d5ca7593.exe
-
Size
165KB
-
MD5
a2f3d796dc2c2f474188db58d5ca7593
-
SHA1
dc88893abba370aab576dcc9bd60b5fc7bb5dd4e
-
SHA256
408d62cbf4789d9533230eff49b8b45c11b01fd8c8d6d65ec339725d7521a48c
-
SHA512
9a454f6eb65ef53baa5cff2e2dd3b4691e80acc37b78e27b4832a045420942425aa458243d3640fe9b3d5c756cfb8d65d7f828cd4b6633228a6500327c1f2b7c
-
SSDEEP
3072:RONnlLWEFpHEVITy9VG4Req0CFkIOomD7Pp65vOs2C:+lLWcpHuSM3IGFROokP2Om
Malware Config
Extracted
C:\info.hta
class='mark'>[email protected]</span></div>
http://www.w3.org/TR/html4/strict.dtd'>
Extracted
C:\Users\Admin\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
-
Renames multiple (312) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
Deletes backup catalog 3 TTPs 2 IoCs
Uses wbadmin.exe to inhibit system recovery.
-
Modifies Windows Firewall 1 TTPs 2 IoCs
-
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 4 IoCs
-
Suspicious behavior: EnumeratesProcesses 64 IoCs
-
Suspicious use of AdjustPrivilegeToken 64 IoCs
-
Suspicious use of WriteProcessMemory 64 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\a2f3d796dc2c2f474188db58d5ca7593.exe"C:\Users\Admin\AppData\Local\Temp\a2f3d796dc2c2f474188db58d5ca7593.exe"1⤵
- 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\a2f3d796dc2c2f474188db58d5ca7593.exe"C:\Users\Admin\AppData\Local\Temp\a2f3d796dc2c2f474188db58d5ca7593.exe"2⤵
-
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\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\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\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "F:\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⤵
-
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
MD51ef065e0ba34bc5b2500a4625a8c26c6
SHA14936eda5453171839860121347183582665aee52
SHA2566e0a49940888dcd8e5a69878cfeae9d8c84a14af3aa80fce3cc6bd01cd316df1
SHA51269174c2754b3f8ec238b205584db5b38427402f967b512b8f4aeb475e5d325789b7791c754019b3cf60f759c39ae423c9fc15498bab0b34d2d5e35a561c9fb37
-
Filesize
5KB
MD5bad66f74726fb9608210d6727fec6fe1
SHA1ea1a2e4a8e6e0e423107b67f0b31bab0daea7fe9
SHA256cb5e041356cff243470bab21acab8190b4b19b41ffa1f144eacf64a06e3bf6b5
SHA512685d9d59e72527b1e31d24fd3f16b8a599d37495a38d88864fd2a5bd5390932ab9f812a76a474234009eb7d33233ac5bc6413c79aa8755b196f0f74a1cb7a162
-
Filesize
5KB
MD5bad66f74726fb9608210d6727fec6fe1
SHA1ea1a2e4a8e6e0e423107b67f0b31bab0daea7fe9
SHA256cb5e041356cff243470bab21acab8190b4b19b41ffa1f144eacf64a06e3bf6b5
SHA512685d9d59e72527b1e31d24fd3f16b8a599d37495a38d88864fd2a5bd5390932ab9f812a76a474234009eb7d33233ac5bc6413c79aa8755b196f0f74a1cb7a162
-
Filesize
5KB
MD5bad66f74726fb9608210d6727fec6fe1
SHA1ea1a2e4a8e6e0e423107b67f0b31bab0daea7fe9
SHA256cb5e041356cff243470bab21acab8190b4b19b41ffa1f144eacf64a06e3bf6b5
SHA512685d9d59e72527b1e31d24fd3f16b8a599d37495a38d88864fd2a5bd5390932ab9f812a76a474234009eb7d33233ac5bc6413c79aa8755b196f0f74a1cb7a162
-
Filesize
5KB
MD5bad66f74726fb9608210d6727fec6fe1
SHA1ea1a2e4a8e6e0e423107b67f0b31bab0daea7fe9
SHA256cb5e041356cff243470bab21acab8190b4b19b41ffa1f144eacf64a06e3bf6b5
SHA512685d9d59e72527b1e31d24fd3f16b8a599d37495a38d88864fd2a5bd5390932ab9f812a76a474234009eb7d33233ac5bc6413c79aa8755b196f0f74a1cb7a162
-
Filesize
5KB
MD5bad66f74726fb9608210d6727fec6fe1
SHA1ea1a2e4a8e6e0e423107b67f0b31bab0daea7fe9
SHA256cb5e041356cff243470bab21acab8190b4b19b41ffa1f144eacf64a06e3bf6b5
SHA512685d9d59e72527b1e31d24fd3f16b8a599d37495a38d88864fd2a5bd5390932ab9f812a76a474234009eb7d33233ac5bc6413c79aa8755b196f0f74a1cb7a162
-
Filesize
616KB
-
Filesize
1024KB
-
Filesize
616KB
-
Filesize
616KB
-
Filesize
616KB
-
Filesize
616KB
-
Filesize
616KB
-
Filesize
1024KB
-
Filesize
60KB
-
Filesize
616KB
-
Filesize
616KB
-
Filesize
1024KB
-
Filesize
616KB