Analysis
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max time kernel
150s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
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submitted
02-10-2023 11:53
General
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Target
fa620f37539b2c7e53d4c06de1b680d0eab5c3a5280b89d1700e014bfd320519.exe
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Size
260KB
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MD5
c2317e46c10621501b8fb1022136b0c3
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SHA1
982a7c80f27f9dd71b8214e07c7beb81c13d3ec7
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SHA256
fa620f37539b2c7e53d4c06de1b680d0eab5c3a5280b89d1700e014bfd320519
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SHA512
2b28c632bda2a059f7725d28ee068f397385bf09714fbb8ad9b76f3b826d7bda9051d87911e29ba2bb36e5288441d06bc0f8ba85a1f28514ca22f7f07ed5850d
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SSDEEP
6144:b6ugHwcL96M7w0hpE6E7v1/Lf97PMam5pRLUZmlZe8cUy:brgHwzlQEr1/DZPMasPLi8R
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 (473) 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\fa620f37539b2c7e53d4c06de1b680d0eab5c3a5280b89d1700e014bfd320519.exe"C:\Users\Admin\AppData\Local\Temp\fa620f37539b2c7e53d4c06de1b680d0eab5c3a5280b89d1700e014bfd320519.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\fa620f37539b2c7e53d4c06de1b680d0eab5c3a5280b89d1700e014bfd320519.exeC:\Users\Admin\AppData\Local\Temp\fa620f37539b2c7e53d4c06de1b680d0eab5c3a5280b89d1700e014bfd320519.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\fa620f37539b2c7e53d4c06de1b680d0eab5c3a5280b89d1700e014bfd320519.exe"C:\Users\Admin\AppData\Local\Temp\fa620f37539b2c7e53d4c06de1b680d0eab5c3a5280b89d1700e014bfd320519.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\fa620f37539b2c7e53d4c06de1b680d0eab5c3a5280b89d1700e014bfd320519.exeC:\Users\Admin\AppData\Local\Temp\fa620f37539b2c7e53d4c06de1b680d0eab5c3a5280b89d1700e014bfd320519.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
MD5e765b3a6bc4fda88f50b55a29b31dc31
SHA1fa4f194327c81c8abf3b98b673ee7a1d7895ff0a
SHA2567786e86bfba1586068c1ecd2971cac54abcf5ceaaa9de048ed9404e00922d7d1
SHA512bcbeb37042d297a8610ac2b5239f093e9645abe1ef228abc878b2bb68639fe2dcf1623cf0a136c1f6af6b546da763da7b5939f1d6a05469c5bdd7896a780b257
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Filesize
927B
MD54a911455784f74e368a4c2c7876d76f4
SHA1a1700a0849ffb4f26671eb76da2489946b821c34
SHA256264098e15b5b33d425f3b76e45b7976b58f917048125041135f7e60d8151108c
SHA5124617591400409e1930195795a55e20d5f063042bb3e9fd1955099066e507b6ac8a1e3ae54cc42418e2639149b31bf7e58cd5743670d9030a15e29f14d813815d
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Filesize
5KB
MD53e72145194c672c168fba652686c33a2
SHA18588efffc0d52bc7db3ae0a8c7e87ad6e919a290
SHA25694d0e85061fdd066000b72af90debbf1e689718856b8f8d157afda7d2c1f3735
SHA512c9505f31170ea6b0c558af6761fd0e262db3509f9cfe0845191d0057c3fafe6823c9d0f543043f64f765bb1cc8e235bebede695d1ee1761f6e5ecc85643f95fa
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Filesize
5KB
MD53e72145194c672c168fba652686c33a2
SHA18588efffc0d52bc7db3ae0a8c7e87ad6e919a290
SHA25694d0e85061fdd066000b72af90debbf1e689718856b8f8d157afda7d2c1f3735
SHA512c9505f31170ea6b0c558af6761fd0e262db3509f9cfe0845191d0057c3fafe6823c9d0f543043f64f765bb1cc8e235bebede695d1ee1761f6e5ecc85643f95fa
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Filesize
5KB
MD53e72145194c672c168fba652686c33a2
SHA18588efffc0d52bc7db3ae0a8c7e87ad6e919a290
SHA25694d0e85061fdd066000b72af90debbf1e689718856b8f8d157afda7d2c1f3735
SHA512c9505f31170ea6b0c558af6761fd0e262db3509f9cfe0845191d0057c3fafe6823c9d0f543043f64f765bb1cc8e235bebede695d1ee1761f6e5ecc85643f95fa
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Filesize
5KB
MD53e72145194c672c168fba652686c33a2
SHA18588efffc0d52bc7db3ae0a8c7e87ad6e919a290
SHA25694d0e85061fdd066000b72af90debbf1e689718856b8f8d157afda7d2c1f3735
SHA512c9505f31170ea6b0c558af6761fd0e262db3509f9cfe0845191d0057c3fafe6823c9d0f543043f64f765bb1cc8e235bebede695d1ee1761f6e5ecc85643f95fa
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Filesize
5KB
MD53e72145194c672c168fba652686c33a2
SHA18588efffc0d52bc7db3ae0a8c7e87ad6e919a290
SHA25694d0e85061fdd066000b72af90debbf1e689718856b8f8d157afda7d2c1f3735
SHA512c9505f31170ea6b0c558af6761fd0e262db3509f9cfe0845191d0057c3fafe6823c9d0f543043f64f765bb1cc8e235bebede695d1ee1761f6e5ecc85643f95fa
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Filesize
76KB
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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
-
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
7.7MB
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Filesize
7.7MB
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Filesize
64KB
-
Filesize
280KB
-
Filesize
76KB
-
Filesize
288KB
-
Filesize
5.6MB
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Filesize
7.7MB
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Filesize
304KB
-
Filesize
208KB
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Filesize
64KB
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Filesize
280KB
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Filesize
7.7MB