Analysis
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max time kernel
150s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20230831-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
C:\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 (472) 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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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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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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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 62 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⤵
- 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\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\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\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\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}3⤵
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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}3⤵
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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}3⤵
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "F:\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}3⤵
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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\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 v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Privilege Escalation
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
3.2MB
MD55336fc3f65d07817c6fe1fc48ef66ce3
SHA1ead3e22ce5d1fbcbae6470c94576a64bb0839d44
SHA256204287f21bc56b841a26908f86235a04b7879455f2c32ad13095fc899920f218
SHA51234077d09d1260b7f081264cd4f08289b377c83dcb81318c23de6350a7af4a6581520c18a170f51acc0e64d1f0d87badeee8c6fb7236330a9525cf4ae7a3a9d9c
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Filesize
927B
MD54a911455784f74e368a4c2c7876d76f4
SHA1a1700a0849ffb4f26671eb76da2489946b821c34
SHA256264098e15b5b33d425f3b76e45b7976b58f917048125041135f7e60d8151108c
SHA5124617591400409e1930195795a55e20d5f063042bb3e9fd1955099066e507b6ac8a1e3ae54cc42418e2639149b31bf7e58cd5743670d9030a15e29f14d813815d
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Filesize
5KB
MD50108fea47aa086828e21ef716c38c8ac
SHA1be4debb57cee82b8903d9bea4f8aee7fe1caa736
SHA256eb468c36e0ba3024e0309eccb02b178a7f75cb3c00bb6c91681e4f04dde1f40d
SHA51278232787ddce8754d7e9ba5042fee541a613193b4d25d23916d27532810820d04c00882a9f1d432d0020cd23fb9ece5ef7fcbdbda4d49a32327a7bc8609bb5f5
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Filesize
5KB
MD50108fea47aa086828e21ef716c38c8ac
SHA1be4debb57cee82b8903d9bea4f8aee7fe1caa736
SHA256eb468c36e0ba3024e0309eccb02b178a7f75cb3c00bb6c91681e4f04dde1f40d
SHA51278232787ddce8754d7e9ba5042fee541a613193b4d25d23916d27532810820d04c00882a9f1d432d0020cd23fb9ece5ef7fcbdbda4d49a32327a7bc8609bb5f5
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Filesize
5KB
MD50108fea47aa086828e21ef716c38c8ac
SHA1be4debb57cee82b8903d9bea4f8aee7fe1caa736
SHA256eb468c36e0ba3024e0309eccb02b178a7f75cb3c00bb6c91681e4f04dde1f40d
SHA51278232787ddce8754d7e9ba5042fee541a613193b4d25d23916d27532810820d04c00882a9f1d432d0020cd23fb9ece5ef7fcbdbda4d49a32327a7bc8609bb5f5
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Filesize
5KB
MD50108fea47aa086828e21ef716c38c8ac
SHA1be4debb57cee82b8903d9bea4f8aee7fe1caa736
SHA256eb468c36e0ba3024e0309eccb02b178a7f75cb3c00bb6c91681e4f04dde1f40d
SHA51278232787ddce8754d7e9ba5042fee541a613193b4d25d23916d27532810820d04c00882a9f1d432d0020cd23fb9ece5ef7fcbdbda4d49a32327a7bc8609bb5f5
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Filesize
5KB
MD50108fea47aa086828e21ef716c38c8ac
SHA1be4debb57cee82b8903d9bea4f8aee7fe1caa736
SHA256eb468c36e0ba3024e0309eccb02b178a7f75cb3c00bb6c91681e4f04dde1f40d
SHA51278232787ddce8754d7e9ba5042fee541a613193b4d25d23916d27532810820d04c00882a9f1d432d0020cd23fb9ece5ef7fcbdbda4d49a32327a7bc8609bb5f5
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Filesize
7.7MB
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Filesize
64KB
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Filesize
7.7MB
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Filesize
7.7MB
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Filesize
656KB
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Filesize
5.6MB
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Filesize
64KB
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Filesize
7.7MB
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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
-
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
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Filesize
76KB
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Filesize
76KB
-
Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
-
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