Analysis
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max time kernel
150s -
max time network
131s -
platform
windows10-1703_x64 -
resource
win10-20230703-en -
resource tags
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submitted
15-07-2023 00:27
General
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Target
8879a7a950a3916f5438685f994ee829a20e4c60021db73060cd078e4a72b5a7.exe
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Size
164KB
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MD5
7166d39e9c1cb17e1728d316531242b1
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SHA1
d05810943685bcd70999ff0926215f5d6fe2637a
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SHA256
8879a7a950a3916f5438685f994ee829a20e4c60021db73060cd078e4a72b5a7
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SHA512
b377a2605a34a0fe98a1c49db7d3898e12850944c323b7a4d19c1f5e2081e688624127de529e961da530b7439813495cc254957cb2e16ffea999d943f0fc4214
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SSDEEP
3072:0OLdjvSZkJXvtv+HQ7kvQ4sn++DXmHz5AL:RLdTS6Xvd+HQ7kvQ44L
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 (449) 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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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 42 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\8879a7a950a3916f5438685f994ee829a20e4c60021db73060cd078e4a72b5a7.exe"C:\Users\Admin\AppData\Local\Temp\8879a7a950a3916f5438685f994ee829a20e4c60021db73060cd078e4a72b5a7.exe"1⤵
- 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\8879a7a950a3916f5438685f994ee829a20e4c60021db73060cd078e4a72b5a7.exe"C:\Users\Admin\AppData\Local\Temp\8879a7a950a3916f5438685f994ee829a20e4c60021db73060cd078e4a72b5a7.exe"2⤵
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- Deletes backup catalog
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh advfirewall set currentprofile state off3⤵
- Modifies Windows Firewall
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C:\Windows\system32\netsh.exenetsh firewall set opmode mode=disable3⤵
- 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}2⤵
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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}2⤵
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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}2⤵
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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}2⤵
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- 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 v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.7MB
MD546814e167b583c580f5141913461dc8e
SHA12e01c273b99b3bd12e98d4313a811201d92ee7b4
SHA2569a854ba4465bca20086fe1ec6d3e2baaf90c3d90e3547215fb5cc9a11e47b716
SHA5127758dcfcf8ca95f2dc329473e7f6cf46906947d0b9179bec052133c97561c2162dbf6aa7c06e7db776d3765139ebb45a15b192b204c71ce498d8e99f706fb3b7
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Filesize
5KB
MD53cad80a08c2e88362c3ccda095a743b0
SHA10f0b691070e627d4340296ef4fb6f6f7fdb174ae
SHA25661b5e612fc054a49918ca7c34b54f7558008fc23b6105da32162d8a3bc1b7394
SHA51243ff8efc00727ab2731c037d5da3403748290d95927c5cd0ba44465605b2636715ff9423c2b9e101150a7e00abf6ab10e91a76d2b1012c0082c8976a7c41a4d9
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Filesize
5KB
MD53cad80a08c2e88362c3ccda095a743b0
SHA10f0b691070e627d4340296ef4fb6f6f7fdb174ae
SHA25661b5e612fc054a49918ca7c34b54f7558008fc23b6105da32162d8a3bc1b7394
SHA51243ff8efc00727ab2731c037d5da3403748290d95927c5cd0ba44465605b2636715ff9423c2b9e101150a7e00abf6ab10e91a76d2b1012c0082c8976a7c41a4d9
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Filesize
5KB
MD53cad80a08c2e88362c3ccda095a743b0
SHA10f0b691070e627d4340296ef4fb6f6f7fdb174ae
SHA25661b5e612fc054a49918ca7c34b54f7558008fc23b6105da32162d8a3bc1b7394
SHA51243ff8efc00727ab2731c037d5da3403748290d95927c5cd0ba44465605b2636715ff9423c2b9e101150a7e00abf6ab10e91a76d2b1012c0082c8976a7c41a4d9
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Filesize
5KB
MD53cad80a08c2e88362c3ccda095a743b0
SHA10f0b691070e627d4340296ef4fb6f6f7fdb174ae
SHA25661b5e612fc054a49918ca7c34b54f7558008fc23b6105da32162d8a3bc1b7394
SHA51243ff8efc00727ab2731c037d5da3403748290d95927c5cd0ba44465605b2636715ff9423c2b9e101150a7e00abf6ab10e91a76d2b1012c0082c8976a7c41a4d9
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Filesize
5KB
MD53cad80a08c2e88362c3ccda095a743b0
SHA10f0b691070e627d4340296ef4fb6f6f7fdb174ae
SHA25661b5e612fc054a49918ca7c34b54f7558008fc23b6105da32162d8a3bc1b7394
SHA51243ff8efc00727ab2731c037d5da3403748290d95927c5cd0ba44465605b2636715ff9423c2b9e101150a7e00abf6ab10e91a76d2b1012c0082c8976a7c41a4d9
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Filesize
60KB
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Filesize
908KB
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Filesize
908KB
-
Filesize
908KB
-
Filesize
908KB
-
Filesize
908KB
-
Filesize
908KB
-
Filesize
60KB
-
Filesize
908KB
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Filesize
1024KB
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Filesize
1024KB
-
Filesize
908KB
-
Filesize
1024KB
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Filesize
908KB