Analysis
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max time kernel
150s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20230831-en -
resource tags
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submitted
08-09-2023 19:14
General
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Target
23ce1ae76844de9ad9dc0307ed629bb7.exe
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Size
304KB
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MD5
23ce1ae76844de9ad9dc0307ed629bb7
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SHA1
9f70fd29900c659599155e8d758b938db00f43bd
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SHA256
33c861023479ddcaea82f2daee9d0394f304d0c33ba210f4c3c53a93cf9a474c
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SHA512
f750d46822cb91792dc13fb85beecfffe55ba8f31d2daeb8768e991216ac000ce35ae5ebaf0b7a0211406de27dd351017086e357292202ef4e6f9dedf0a35525
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SSDEEP
6144:kcdY7kZx95vjjdluPMFTphrynyqDrOPiZ2oszWiofu50gq+n4P0F6:hdDndlu6PqDrEe2osKNfQ0HM3E
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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Renames multiple (470) 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\23ce1ae76844de9ad9dc0307ed629bb7.exe"C:\Users\Admin\AppData\Local\Temp\23ce1ae76844de9ad9dc0307ed629bb7.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\23ce1ae76844de9ad9dc0307ed629bb7.exeC:\Users\Admin\AppData\Local\Temp\23ce1ae76844de9ad9dc0307ed629bb7.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\23ce1ae76844de9ad9dc0307ed629bb7.exe"C:\Users\Admin\AppData\Local\Temp\23ce1ae76844de9ad9dc0307ed629bb7.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\23ce1ae76844de9ad9dc0307ed629bb7.exeC:\Users\Admin\AppData\Local\Temp\23ce1ae76844de9ad9dc0307ed629bb7.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
2.7MB
MD5871b719bb519537a07f777926f1077e1
SHA170a8a001363c1810503f3358bef60584c2432f93
SHA256750c2a6dcaf0134645c7260a281cab402d39b626c7f1afec13415120a38af644
SHA512d94f9722d844a03b7b9c84ad7e96acb68f4ae2aa3990b356324c1152a123ec209381b3cee110489d5313ad5738f7b893e57862fff1fe7c3b79f1911dcc6ac8cc
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Filesize
927B
MD54a911455784f74e368a4c2c7876d76f4
SHA1a1700a0849ffb4f26671eb76da2489946b821c34
SHA256264098e15b5b33d425f3b76e45b7976b58f917048125041135f7e60d8151108c
SHA5124617591400409e1930195795a55e20d5f063042bb3e9fd1955099066e507b6ac8a1e3ae54cc42418e2639149b31bf7e58cd5743670d9030a15e29f14d813815d
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Filesize
5KB
MD5ff6e10108c3e791104207b176b73ccae
SHA1c4ca00c26133b89ea0a46563122c90f1ffb5ff1c
SHA2565af1771c0f7cd0d02ceeeeea3c6a7edd1bde2c265ddc1f23251982aa3144eed4
SHA5122f6566d0e03ccd0225f7a5f409fa84af0866c7a31b5e6276d5cc2e00e853043fc42bb83a42aee3d6a0e7e008ee5a828e9e9cf134e1479d834154a1ba046aeedb
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Filesize
5KB
MD5ff6e10108c3e791104207b176b73ccae
SHA1c4ca00c26133b89ea0a46563122c90f1ffb5ff1c
SHA2565af1771c0f7cd0d02ceeeeea3c6a7edd1bde2c265ddc1f23251982aa3144eed4
SHA5122f6566d0e03ccd0225f7a5f409fa84af0866c7a31b5e6276d5cc2e00e853043fc42bb83a42aee3d6a0e7e008ee5a828e9e9cf134e1479d834154a1ba046aeedb
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Filesize
5KB
MD5ff6e10108c3e791104207b176b73ccae
SHA1c4ca00c26133b89ea0a46563122c90f1ffb5ff1c
SHA2565af1771c0f7cd0d02ceeeeea3c6a7edd1bde2c265ddc1f23251982aa3144eed4
SHA5122f6566d0e03ccd0225f7a5f409fa84af0866c7a31b5e6276d5cc2e00e853043fc42bb83a42aee3d6a0e7e008ee5a828e9e9cf134e1479d834154a1ba046aeedb
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Filesize
5KB
MD5ff6e10108c3e791104207b176b73ccae
SHA1c4ca00c26133b89ea0a46563122c90f1ffb5ff1c
SHA2565af1771c0f7cd0d02ceeeeea3c6a7edd1bde2c265ddc1f23251982aa3144eed4
SHA5122f6566d0e03ccd0225f7a5f409fa84af0866c7a31b5e6276d5cc2e00e853043fc42bb83a42aee3d6a0e7e008ee5a828e9e9cf134e1479d834154a1ba046aeedb
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Filesize
5KB
MD5ff6e10108c3e791104207b176b73ccae
SHA1c4ca00c26133b89ea0a46563122c90f1ffb5ff1c
SHA2565af1771c0f7cd0d02ceeeeea3c6a7edd1bde2c265ddc1f23251982aa3144eed4
SHA5122f6566d0e03ccd0225f7a5f409fa84af0866c7a31b5e6276d5cc2e00e853043fc42bb83a42aee3d6a0e7e008ee5a828e9e9cf134e1479d834154a1ba046aeedb
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Filesize
5.6MB
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Filesize
7.7MB
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Filesize
328KB
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Filesize
64KB
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Filesize
7.7MB
-
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
-
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
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
7.7MB
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Filesize
64KB
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Filesize
7.7MB