Analysis
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max time kernel
150s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
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submitted
04-10-2023 08:25
General
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Target
fa7ed15708d988e7f69b5628db9481816052efea29e93f1bd274a1d76006aee6.exe
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Size
1023KB
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MD5
77650bc339c9c420709ca447465f164b
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SHA1
623362fa1b8b25eb5e072db8f873486392cb464d
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SHA256
fa7ed15708d988e7f69b5628db9481816052efea29e93f1bd274a1d76006aee6
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SHA512
180f90f46b2ffe746bdd554b55987624f0e5c18b381dc5a43a18362e4403a155d8c1753b6038c9792e1d0bf450995cba830f5b653508491763e9a1a99605d4bb
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SSDEEP
24576:3JorhygMajIQREzeqwEhjL5a5iT/8oTZfMy4:5SrM8HCL5Rb8oSy4
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 (468) 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\fa7ed15708d988e7f69b5628db9481816052efea29e93f1bd274a1d76006aee6.exe"C:\Users\Admin\AppData\Local\Temp\fa7ed15708d988e7f69b5628db9481816052efea29e93f1bd274a1d76006aee6.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\fa7ed15708d988e7f69b5628db9481816052efea29e93f1bd274a1d76006aee6.exeC:\Users\Admin\AppData\Local\Temp\fa7ed15708d988e7f69b5628db9481816052efea29e93f1bd274a1d76006aee6.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\fa7ed15708d988e7f69b5628db9481816052efea29e93f1bd274a1d76006aee6.exe"C:\Users\Admin\AppData\Local\Temp\fa7ed15708d988e7f69b5628db9481816052efea29e93f1bd274a1d76006aee6.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\fa7ed15708d988e7f69b5628db9481816052efea29e93f1bd274a1d76006aee6.exeC:\Users\Admin\AppData\Local\Temp\fa7ed15708d988e7f69b5628db9481816052efea29e93f1bd274a1d76006aee6.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
MD5d6b93614bc7ee12e8c4f35804aef8785
SHA1c13d93007e22007ada9b7975b741b10edfaca530
SHA2568e545305176b99da02037b79753fe1e805f96e735c148b71fe0913bef92d0597
SHA512d6f0b89be1ceae2c18d00a1872af6bc014a62cc0264810a00f99dac7f8111951cb59d77506ec1348f6392a5b3e32326823b6e4eedebf95ee41cad788630e8ee8
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Filesize
927B
MD54a911455784f74e368a4c2c7876d76f4
SHA1a1700a0849ffb4f26671eb76da2489946b821c34
SHA256264098e15b5b33d425f3b76e45b7976b58f917048125041135f7e60d8151108c
SHA5124617591400409e1930195795a55e20d5f063042bb3e9fd1955099066e507b6ac8a1e3ae54cc42418e2639149b31bf7e58cd5743670d9030a15e29f14d813815d
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Filesize
5KB
MD5d27ce761c07e97b343861225b436b893
SHA18332f2b2ab891524d83203b1b20b1d8660b5f51e
SHA25698fd472f483f3ee8c77b24e325dd727385c365a6f21a6064650726adcce022db
SHA5125695b19565dbb44c9cb430fd6c2d36112272d45761ddb47f3290e627ac1d5a6d41d7352995beb99ca800168c7f64ffe9624e0f60f908d8fef86d8385f3d4c28a
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Filesize
5KB
MD5d27ce761c07e97b343861225b436b893
SHA18332f2b2ab891524d83203b1b20b1d8660b5f51e
SHA25698fd472f483f3ee8c77b24e325dd727385c365a6f21a6064650726adcce022db
SHA5125695b19565dbb44c9cb430fd6c2d36112272d45761ddb47f3290e627ac1d5a6d41d7352995beb99ca800168c7f64ffe9624e0f60f908d8fef86d8385f3d4c28a
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Filesize
5KB
MD5d27ce761c07e97b343861225b436b893
SHA18332f2b2ab891524d83203b1b20b1d8660b5f51e
SHA25698fd472f483f3ee8c77b24e325dd727385c365a6f21a6064650726adcce022db
SHA5125695b19565dbb44c9cb430fd6c2d36112272d45761ddb47f3290e627ac1d5a6d41d7352995beb99ca800168c7f64ffe9624e0f60f908d8fef86d8385f3d4c28a
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Filesize
5KB
MD5d27ce761c07e97b343861225b436b893
SHA18332f2b2ab891524d83203b1b20b1d8660b5f51e
SHA25698fd472f483f3ee8c77b24e325dd727385c365a6f21a6064650726adcce022db
SHA5125695b19565dbb44c9cb430fd6c2d36112272d45761ddb47f3290e627ac1d5a6d41d7352995beb99ca800168c7f64ffe9624e0f60f908d8fef86d8385f3d4c28a
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Filesize
5KB
MD5d27ce761c07e97b343861225b436b893
SHA18332f2b2ab891524d83203b1b20b1d8660b5f51e
SHA25698fd472f483f3ee8c77b24e325dd727385c365a6f21a6064650726adcce022db
SHA5125695b19565dbb44c9cb430fd6c2d36112272d45761ddb47f3290e627ac1d5a6d41d7352995beb99ca800168c7f64ffe9624e0f60f908d8fef86d8385f3d4c28a
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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
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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
5.6MB
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Filesize
7.7MB
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Filesize
304KB
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Filesize
7.7MB
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Filesize
208KB
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Filesize
280KB
-
Filesize
288KB
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Filesize
64KB
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Filesize
1.0MB
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Filesize
76KB