Analysis
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max time kernel
151s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
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submitted
15-09-2023 12:32
General
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Target
42553b52c33d2b5f8a747819d0bf97d5.exe
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Size
602KB
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MD5
42553b52c33d2b5f8a747819d0bf97d5
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SHA1
ae1bc8822e41c65caedc07dd98b0d9156e2a28cd
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SHA256
d4cb20dba15d88c38c35be69fe04538b4f9bb0a12edb51ff23c0171b584edf08
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SHA512
5ed02973a1a88dc4835a933e84d422ecad64dd33645d4621ecd396a8786269c7616b5e68a6744912c5f3bc831a1b897b89306b773577c90dfbf766e1186ffe4c
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SSDEEP
12288:k1gLpE124JdB+jegjTfWU3qU8FyFTdeQUSonYLVqY2Vi:HaM4JaSMoF4deLgVKQ
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 (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 64 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\42553b52c33d2b5f8a747819d0bf97d5.exe"C:\Users\Admin\AppData\Local\Temp\42553b52c33d2b5f8a747819d0bf97d5.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\42553b52c33d2b5f8a747819d0bf97d5.exeC:\Users\Admin\AppData\Local\Temp\42553b52c33d2b5f8a747819d0bf97d5.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\42553b52c33d2b5f8a747819d0bf97d5.exe"C:\Users\Admin\AppData\Local\Temp\42553b52c33d2b5f8a747819d0bf97d5.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\42553b52c33d2b5f8a747819d0bf97d5.exeC:\Users\Admin\AppData\Local\Temp\42553b52c33d2b5f8a747819d0bf97d5.exe4⤵
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C:\Users\Admin\AppData\Local\Temp\42553b52c33d2b5f8a747819d0bf97d5.exeC:\Users\Admin\AppData\Local\Temp\42553b52c33d2b5f8a747819d0bf97d5.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
MD511f2b7d65f7f3f5330fcf1db33ba6232
SHA1b7316dfd9f87e6a83a989e5a20894c3bb7b52a47
SHA2561addd2cafdbad6f27de8171aa3c9b3f1aa6d1b2779ca487f649d7758cad949b6
SHA512ea7676ba20edd1d737f9a1375b4108fddc6cefbdda34aa0f7fc09998c72ddfad117b7559b0fcc2b2a07bbc848b69432a80f2b1a75a0d537f5a691a99a6c2bef8
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Filesize
927B
MD5ff27e87d4bf1330435001e57e8244d60
SHA1b22264ed3cd4d35f8236278edd2512c3b7ecb355
SHA2567e9adf70ba438f8a38feac34e1b25bb4261fa506d00361ea7e5cde784651474e
SHA512d678aa2b42032ea0d811f9783abff7c94a6d674bd3dee74df706b7f95da7e51d84207320ea36226da4f8651e6ec618ea12d99d2d6d371bd1e98395518b8956e0
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Filesize
5KB
MD5548959ff1880a989f47cd13f0d5546b0
SHA10b772eb8767052c190a33e74f055840c7be3570c
SHA2560c97b1eb1afc1ca7a9037c5ffe24459e605c3dda4e2c8dd3592394a0db297f8f
SHA512d5c1dd6c0330522d4d4f020f465bce51150c13fe593354a25c76423076ba16dffeb733d65287c160fb86843ee6ae16f4102af70e973669d256dcad75dcdea114
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Filesize
5KB
MD5548959ff1880a989f47cd13f0d5546b0
SHA10b772eb8767052c190a33e74f055840c7be3570c
SHA2560c97b1eb1afc1ca7a9037c5ffe24459e605c3dda4e2c8dd3592394a0db297f8f
SHA512d5c1dd6c0330522d4d4f020f465bce51150c13fe593354a25c76423076ba16dffeb733d65287c160fb86843ee6ae16f4102af70e973669d256dcad75dcdea114
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Filesize
5KB
MD5548959ff1880a989f47cd13f0d5546b0
SHA10b772eb8767052c190a33e74f055840c7be3570c
SHA2560c97b1eb1afc1ca7a9037c5ffe24459e605c3dda4e2c8dd3592394a0db297f8f
SHA512d5c1dd6c0330522d4d4f020f465bce51150c13fe593354a25c76423076ba16dffeb733d65287c160fb86843ee6ae16f4102af70e973669d256dcad75dcdea114
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Filesize
5KB
MD5548959ff1880a989f47cd13f0d5546b0
SHA10b772eb8767052c190a33e74f055840c7be3570c
SHA2560c97b1eb1afc1ca7a9037c5ffe24459e605c3dda4e2c8dd3592394a0db297f8f
SHA512d5c1dd6c0330522d4d4f020f465bce51150c13fe593354a25c76423076ba16dffeb733d65287c160fb86843ee6ae16f4102af70e973669d256dcad75dcdea114
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Filesize
5KB
MD5548959ff1880a989f47cd13f0d5546b0
SHA10b772eb8767052c190a33e74f055840c7be3570c
SHA2560c97b1eb1afc1ca7a9037c5ffe24459e605c3dda4e2c8dd3592394a0db297f8f
SHA512d5c1dd6c0330522d4d4f020f465bce51150c13fe593354a25c76423076ba16dffeb733d65287c160fb86843ee6ae16f4102af70e973669d256dcad75dcdea114
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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
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
-
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
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
208KB
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Filesize
304KB
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Filesize
7.7MB
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Filesize
7.7MB
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Filesize
280KB
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Filesize
304KB
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Filesize
64KB
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Filesize
5.6MB
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Filesize
624KB