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
06-10-2023 09:00
General
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Target
1f7dd42295e1d8059c9cae2eff17109e.exe
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Size
488KB
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MD5
1f7dd42295e1d8059c9cae2eff17109e
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SHA1
1d59046ef6c7d204e6ac74337ef534e3f9bd237c
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SHA256
88f6a6455f92255a189526e36aeb581c95c28dc5e26357e7667f871444a336ba
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SHA512
ee7c8017e3422d7749c60a16a231e7960bf9068dec4dd49b9ae6f62016c6de369f9473c1a95957a22f5ef3ce535464b21a2160bed1babf88714ce32a55bdf176
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SSDEEP
12288:RB9V0qCM18GVE8Swslkv92SCijw80Qqcasw4RQ5E5YG:RB9u9m8OsavESCwZNqcas+
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 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\1f7dd42295e1d8059c9cae2eff17109e.exe"C:\Users\Admin\AppData\Local\Temp\1f7dd42295e1d8059c9cae2eff17109e.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\1f7dd42295e1d8059c9cae2eff17109e.exeC:\Users\Admin\AppData\Local\Temp\1f7dd42295e1d8059c9cae2eff17109e.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\1f7dd42295e1d8059c9cae2eff17109e.exe"C:\Users\Admin\AppData\Local\Temp\1f7dd42295e1d8059c9cae2eff17109e.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\1f7dd42295e1d8059c9cae2eff17109e.exeC:\Users\Admin\AppData\Local\Temp\1f7dd42295e1d8059c9cae2eff17109e.exe4⤵
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C:\Users\Admin\AppData\Local\Temp\1f7dd42295e1d8059c9cae2eff17109e.exeC:\Users\Admin\AppData\Local\Temp\1f7dd42295e1d8059c9cae2eff17109e.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
MD5dd0b725ff105773376fd0050321652d5
SHA1427b441de11b3ff46f67d8801644631ad13211a6
SHA256b7e6f19436961004b4eeadbd11963aaa49ffda2f6537f8da883c20e87b4e6e3c
SHA5124d418d2ba52f91b06ddf7336d912b13025af8e7f323e59aef94d62288c6a38cd69a833b89fee21f01b77635cc02dc5374443802a1894c92ebb6095462eccab52
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Filesize
927B
MD54a911455784f74e368a4c2c7876d76f4
SHA1a1700a0849ffb4f26671eb76da2489946b821c34
SHA256264098e15b5b33d425f3b76e45b7976b58f917048125041135f7e60d8151108c
SHA5124617591400409e1930195795a55e20d5f063042bb3e9fd1955099066e507b6ac8a1e3ae54cc42418e2639149b31bf7e58cd5743670d9030a15e29f14d813815d
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Filesize
5KB
MD5f7144c560920d46168838e4f221a3106
SHA1c5ddbd3be2dd1885cb189e1216aee9b8a4069192
SHA2560248577d7285f2cc931ef01fcf916bffae9f521eb6755fc1cdbfa2f6b6619a76
SHA5129c4ec17ea41afe0ea9e547c66baad8a2f8bf542be5a60b6d83a17e3c4a1ade09f2241170e916aefc35cff63e3bd7d1d5c04f93928411f5de1396c2c7f9aa3eb2
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Filesize
5KB
MD5f7144c560920d46168838e4f221a3106
SHA1c5ddbd3be2dd1885cb189e1216aee9b8a4069192
SHA2560248577d7285f2cc931ef01fcf916bffae9f521eb6755fc1cdbfa2f6b6619a76
SHA5129c4ec17ea41afe0ea9e547c66baad8a2f8bf542be5a60b6d83a17e3c4a1ade09f2241170e916aefc35cff63e3bd7d1d5c04f93928411f5de1396c2c7f9aa3eb2
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Filesize
5KB
MD5f7144c560920d46168838e4f221a3106
SHA1c5ddbd3be2dd1885cb189e1216aee9b8a4069192
SHA2560248577d7285f2cc931ef01fcf916bffae9f521eb6755fc1cdbfa2f6b6619a76
SHA5129c4ec17ea41afe0ea9e547c66baad8a2f8bf542be5a60b6d83a17e3c4a1ade09f2241170e916aefc35cff63e3bd7d1d5c04f93928411f5de1396c2c7f9aa3eb2
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Filesize
5KB
MD5f7144c560920d46168838e4f221a3106
SHA1c5ddbd3be2dd1885cb189e1216aee9b8a4069192
SHA2560248577d7285f2cc931ef01fcf916bffae9f521eb6755fc1cdbfa2f6b6619a76
SHA5129c4ec17ea41afe0ea9e547c66baad8a2f8bf542be5a60b6d83a17e3c4a1ade09f2241170e916aefc35cff63e3bd7d1d5c04f93928411f5de1396c2c7f9aa3eb2
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Filesize
5KB
MD5f7144c560920d46168838e4f221a3106
SHA1c5ddbd3be2dd1885cb189e1216aee9b8a4069192
SHA2560248577d7285f2cc931ef01fcf916bffae9f521eb6755fc1cdbfa2f6b6619a76
SHA5129c4ec17ea41afe0ea9e547c66baad8a2f8bf542be5a60b6d83a17e3c4a1ade09f2241170e916aefc35cff63e3bd7d1d5c04f93928411f5de1396c2c7f9aa3eb2
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Filesize
7.7MB
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Filesize
512KB
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Filesize
5.6MB
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Filesize
304KB
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Filesize
208KB
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Filesize
280KB
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Filesize
64KB
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Filesize
7.7MB
-
Filesize
76KB
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Filesize
7.7MB
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Filesize
64KB
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Filesize
7.7MB
-
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