Analysis
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max time kernel
151s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
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submitted
07-09-2023 08:01
General
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Target
e244628c750d40509ef2e3e72e4c2049.exe
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Size
630KB
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MD5
e244628c750d40509ef2e3e72e4c2049
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SHA1
f823f35c00580524fef34d9084721a4cea703016
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SHA256
356799503f195db260e08a81d42a431b4ebd47cef94eddc96f24a0fd3e49d716
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SHA512
329e78c0f70fb0af13624dc83263ef5ea3a5382e69b36ceb957d052db670d720fc99ff1275543bdc47d388d2cb4ffe560d468230fbe71dcb2f870c57d24b3cb8
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SSDEEP
12288:Etj+xbGF2Wi8qpq3ll2iEpiXH7Nu6GKy:aj0E2WNq03l0rpiXHhp
Malware Config
Extracted
C:\info.hta
class='mark'>[email protected]</span></div>
http://www.w3.org/TR/html4/strict.dtd'>
Extracted
F:\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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Renames multiple (320) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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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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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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Suspicious use of SetThreadContext 2 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).
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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 Internet Explorer settings 1 TTPs 4 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 64 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\e244628c750d40509ef2e3e72e4c2049.exe"C:\Users\Admin\AppData\Local\Temp\e244628c750d40509ef2e3e72e4c2049.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\e244628c750d40509ef2e3e72e4c2049.exeC:\Users\Admin\AppData\Local\Temp\e244628c750d40509ef2e3e72e4c2049.exe2⤵
- 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
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C:\Users\Admin\AppData\Local\Temp\e244628c750d40509ef2e3e72e4c2049.exe"C:\Users\Admin\AppData\Local\Temp\e244628c750d40509ef2e3e72e4c2049.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\e244628c750d40509ef2e3e72e4c2049.exeC:\Users\Admin\AppData\Local\Temp\e244628c750d40509ef2e3e72e4c2049.exe4⤵
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh advfirewall set currentprofile state off4⤵
- Modifies Windows Firewall
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C:\Windows\system32\netsh.exenetsh firewall set opmode mode=disable4⤵
- Modifies Windows Firewall
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\info.hta"3⤵
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\desktop\info.hta"3⤵
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\info.hta"3⤵
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "F:\info.hta"3⤵
- Modifies Internet Explorer settings
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"3⤵
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- 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⤵
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
24.4MB
MD5fc1b15c0d192ab39d486ae6b5fdf56eb
SHA170340b9d1abb8901603271127794827615973abc
SHA256b879c073e827a5647956df3dd486e0352ea4700e7063ff3fbf175c1b5500219c
SHA512c2c4d8fd8b9010ede953748b5164c238f1760a1745275175adc5f66b2c5cb759a0453bcfecd544a908b13ba7199d58bc42da942555c4689783c8dbc6165d66f1
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Filesize
5KB
MD554663669883be643cba7828a17f12a33
SHA1e6376643c53a30d5575c45f7bbca00479b706c9b
SHA2569f4cb63040227b4047365bd13547406c206b1c46df3b60cfc031522f984e6207
SHA5127497a5bd364fe3a6f56e8cd3d75a4549a80334d09154c53d2d48cd429f1c1d576c2f7d535fbf077f262f2f69a798cc50ceb40adfc723302931b3d470f79200ea
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Filesize
5KB
MD554663669883be643cba7828a17f12a33
SHA1e6376643c53a30d5575c45f7bbca00479b706c9b
SHA2569f4cb63040227b4047365bd13547406c206b1c46df3b60cfc031522f984e6207
SHA5127497a5bd364fe3a6f56e8cd3d75a4549a80334d09154c53d2d48cd429f1c1d576c2f7d535fbf077f262f2f69a798cc50ceb40adfc723302931b3d470f79200ea
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Filesize
5KB
MD554663669883be643cba7828a17f12a33
SHA1e6376643c53a30d5575c45f7bbca00479b706c9b
SHA2569f4cb63040227b4047365bd13547406c206b1c46df3b60cfc031522f984e6207
SHA5127497a5bd364fe3a6f56e8cd3d75a4549a80334d09154c53d2d48cd429f1c1d576c2f7d535fbf077f262f2f69a798cc50ceb40adfc723302931b3d470f79200ea
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Filesize
5KB
MD554663669883be643cba7828a17f12a33
SHA1e6376643c53a30d5575c45f7bbca00479b706c9b
SHA2569f4cb63040227b4047365bd13547406c206b1c46df3b60cfc031522f984e6207
SHA5127497a5bd364fe3a6f56e8cd3d75a4549a80334d09154c53d2d48cd429f1c1d576c2f7d535fbf077f262f2f69a798cc50ceb40adfc723302931b3d470f79200ea
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Filesize
5KB
MD554663669883be643cba7828a17f12a33
SHA1e6376643c53a30d5575c45f7bbca00479b706c9b
SHA2569f4cb63040227b4047365bd13547406c206b1c46df3b60cfc031522f984e6207
SHA5127497a5bd364fe3a6f56e8cd3d75a4549a80334d09154c53d2d48cd429f1c1d576c2f7d535fbf077f262f2f69a798cc50ceb40adfc723302931b3d470f79200ea
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
4KB
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Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
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Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
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Filesize
76KB
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Filesize
6.9MB
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Filesize
6.9MB
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Filesize
280KB
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Filesize
256KB
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Filesize
208KB
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Filesize
304KB
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Filesize
656KB
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Filesize
6.9MB
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Filesize
656KB
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Filesize
256KB
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Filesize
6.9MB
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Filesize
4KB
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Filesize
76KB