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
12-09-2023 06:56
General
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Target
7e8b8c909f96c4058a7e8f7acd171a78.exe
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Size
382KB
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MD5
7e8b8c909f96c4058a7e8f7acd171a78
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SHA1
a0f2cc3a7fcb60f7389ee4555dbddc2ad5822c7e
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SHA256
2a50a42d3c44e6e3890a53228cb84f6fdb17e38b31422c68b8634a06d36cc324
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SHA512
5959a1b5e03f4b6d7ce837fab5bdce52ef8073666a4445e7d49904e252cf9d9233355bbd54eefd449528070de43d0f64b47bbef8160e2fee4a0dda292520c922
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SSDEEP
6144:MemFwi7Aaj8cDtp5adXbu7FK6jT92wiGgYP91k0dMENe2RurYEhM9+:Mnwi7RDtja5qN2PRYk0d/VRl
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\7e8b8c909f96c4058a7e8f7acd171a78.exe"C:\Users\Admin\AppData\Local\Temp\7e8b8c909f96c4058a7e8f7acd171a78.exe"1⤵
- 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\7e8b8c909f96c4058a7e8f7acd171a78.exeC:\Users\Admin\AppData\Local\Temp\7e8b8c909f96c4058a7e8f7acd171a78.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\7e8b8c909f96c4058a7e8f7acd171a78.exe"C:\Users\Admin\AppData\Local\Temp\7e8b8c909f96c4058a7e8f7acd171a78.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\7e8b8c909f96c4058a7e8f7acd171a78.exeC:\Users\Admin\AppData\Local\Temp\7e8b8c909f96c4058a7e8f7acd171a78.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
MD5d6e1cca61b22cc5bf9315206d052608b
SHA1db1d017b3c24bd23c3e3a1872f0dc3a42bc6e978
SHA2568e2c64c50801fecb2f6e43f26f173196521e5dd59c67880595aaa54d56385319
SHA512fcd596005d467ee7e49405bb467281ac5c875ed1a43001868e479bdecb2bc4a74207311e98d5c3ab159fb0352edef09c0a87a28131767cb96943acfe05d245ba
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Filesize
927B
MD54a911455784f74e368a4c2c7876d76f4
SHA1a1700a0849ffb4f26671eb76da2489946b821c34
SHA256264098e15b5b33d425f3b76e45b7976b58f917048125041135f7e60d8151108c
SHA5124617591400409e1930195795a55e20d5f063042bb3e9fd1955099066e507b6ac8a1e3ae54cc42418e2639149b31bf7e58cd5743670d9030a15e29f14d813815d
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Filesize
5KB
MD5fac05233b52638a7d3c4b32d62ee3f3f
SHA1cce7681fdd6a32038beb3195a5c989c80208e1d5
SHA25686a3fac97e61c5d310e14c856d154345ca9b6fec337589045d30dab266297083
SHA51215656fe92cfc8e71779be392bb4a9e8e13b1984fabe0bf21db2d3394eccd2bf4019f7f2d302547518c3c54ab2a9ff339d4fc784347389e1ebd3089350f55cedc
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Filesize
5KB
MD5fac05233b52638a7d3c4b32d62ee3f3f
SHA1cce7681fdd6a32038beb3195a5c989c80208e1d5
SHA25686a3fac97e61c5d310e14c856d154345ca9b6fec337589045d30dab266297083
SHA51215656fe92cfc8e71779be392bb4a9e8e13b1984fabe0bf21db2d3394eccd2bf4019f7f2d302547518c3c54ab2a9ff339d4fc784347389e1ebd3089350f55cedc
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Filesize
5KB
MD5fac05233b52638a7d3c4b32d62ee3f3f
SHA1cce7681fdd6a32038beb3195a5c989c80208e1d5
SHA25686a3fac97e61c5d310e14c856d154345ca9b6fec337589045d30dab266297083
SHA51215656fe92cfc8e71779be392bb4a9e8e13b1984fabe0bf21db2d3394eccd2bf4019f7f2d302547518c3c54ab2a9ff339d4fc784347389e1ebd3089350f55cedc
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Filesize
5KB
MD5fac05233b52638a7d3c4b32d62ee3f3f
SHA1cce7681fdd6a32038beb3195a5c989c80208e1d5
SHA25686a3fac97e61c5d310e14c856d154345ca9b6fec337589045d30dab266297083
SHA51215656fe92cfc8e71779be392bb4a9e8e13b1984fabe0bf21db2d3394eccd2bf4019f7f2d302547518c3c54ab2a9ff339d4fc784347389e1ebd3089350f55cedc
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Filesize
5KB
MD5fac05233b52638a7d3c4b32d62ee3f3f
SHA1cce7681fdd6a32038beb3195a5c989c80208e1d5
SHA25686a3fac97e61c5d310e14c856d154345ca9b6fec337589045d30dab266297083
SHA51215656fe92cfc8e71779be392bb4a9e8e13b1984fabe0bf21db2d3394eccd2bf4019f7f2d302547518c3c54ab2a9ff339d4fc784347389e1ebd3089350f55cedc
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
-
Filesize
76KB
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Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
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Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
-
Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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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
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Filesize
7.7MB
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Filesize
7.7MB
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Filesize
5.6MB
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Filesize
64KB
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Filesize
408KB