Analysis
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max time kernel
150s -
max time network
126s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
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submitted
06-10-2023 12:54
General
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Target
NEAS.1f7dd42295e1d8059c9cae2eff17109eexe_JC.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:\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 (318) 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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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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Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
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Modifies Internet Explorer settings 1 TTPs 4 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\NEAS.1f7dd42295e1d8059c9cae2eff17109eexe_JC.exe"C:\Users\Admin\AppData\Local\Temp\NEAS.1f7dd42295e1d8059c9cae2eff17109eexe_JC.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\NEAS.1f7dd42295e1d8059c9cae2eff17109eexe_JC.exeC:\Users\Admin\AppData\Local\Temp\NEAS.1f7dd42295e1d8059c9cae2eff17109eexe_JC.exe2⤵
- Drops startup file
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\NEAS.1f7dd42295e1d8059c9cae2eff17109eexe_JC.exe"C:\Users\Admin\AppData\Local\Temp\NEAS.1f7dd42295e1d8059c9cae2eff17109eexe_JC.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\NEAS.1f7dd42295e1d8059c9cae2eff17109eexe_JC.exeC:\Users\Admin\AppData\Local\Temp\NEAS.1f7dd42295e1d8059c9cae2eff17109eexe_JC.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\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\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\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\info.hta"3⤵
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\desktop\info.hta"3⤵
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\info.hta"3⤵
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "F:\info.hta"3⤵
- Modifies Internet Explorer settings
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"3⤵
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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⤵
Network
MITRE ATT&CK Enterprise v15
Persistence
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
189.5MB
MD55ab6f67beac46ceeaf09b3839fc2d289
SHA1a8345f6043c6ba17a172c755a1e02644eb82fb87
SHA256b304b933f451953f7a675511d3eea1447aaa5139b93c8a294c0a8d9dd928f491
SHA51221fa2ee929c22df014de4c2d347ff41bdb3cd70bb56e199be2ff46893f5c55e6e50d9366efb64d7c37c3a1d474d7f503ac9c9d6b51e9526096a02d489d7d1782
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Filesize
5KB
MD548f23d407e7dc9e5b42abe11ed2cfa78
SHA142a0fe758fa2c05f03bb8ea4940f4adb86352aeb
SHA2562e397b1a170f395524e292aa5a7414ff2c49f8fe3c1e4ec41d3f45c53af122a2
SHA5120baf0e61115e5f17eb943eeb51d32688c0ce160cfcceb11ee16ee70b694d96a199a4ae14046c7ab0d55b29d31435dce6abef13cfc97e5f391bcb6e6b8faaf895
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Filesize
5KB
MD548f23d407e7dc9e5b42abe11ed2cfa78
SHA142a0fe758fa2c05f03bb8ea4940f4adb86352aeb
SHA2562e397b1a170f395524e292aa5a7414ff2c49f8fe3c1e4ec41d3f45c53af122a2
SHA5120baf0e61115e5f17eb943eeb51d32688c0ce160cfcceb11ee16ee70b694d96a199a4ae14046c7ab0d55b29d31435dce6abef13cfc97e5f391bcb6e6b8faaf895
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Filesize
5KB
MD548f23d407e7dc9e5b42abe11ed2cfa78
SHA142a0fe758fa2c05f03bb8ea4940f4adb86352aeb
SHA2562e397b1a170f395524e292aa5a7414ff2c49f8fe3c1e4ec41d3f45c53af122a2
SHA5120baf0e61115e5f17eb943eeb51d32688c0ce160cfcceb11ee16ee70b694d96a199a4ae14046c7ab0d55b29d31435dce6abef13cfc97e5f391bcb6e6b8faaf895
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Filesize
5KB
MD548f23d407e7dc9e5b42abe11ed2cfa78
SHA142a0fe758fa2c05f03bb8ea4940f4adb86352aeb
SHA2562e397b1a170f395524e292aa5a7414ff2c49f8fe3c1e4ec41d3f45c53af122a2
SHA5120baf0e61115e5f17eb943eeb51d32688c0ce160cfcceb11ee16ee70b694d96a199a4ae14046c7ab0d55b29d31435dce6abef13cfc97e5f391bcb6e6b8faaf895
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Filesize
5KB
MD548f23d407e7dc9e5b42abe11ed2cfa78
SHA142a0fe758fa2c05f03bb8ea4940f4adb86352aeb
SHA2562e397b1a170f395524e292aa5a7414ff2c49f8fe3c1e4ec41d3f45c53af122a2
SHA5120baf0e61115e5f17eb943eeb51d32688c0ce160cfcceb11ee16ee70b694d96a199a4ae14046c7ab0d55b29d31435dce6abef13cfc97e5f391bcb6e6b8faaf895
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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
76KB
-
Filesize
4KB
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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
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Filesize
6.9MB
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Filesize
6.9MB
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Filesize
512KB
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Filesize
256KB
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Filesize
280KB
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Filesize
208KB
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Filesize
304KB
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Filesize
4KB
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Filesize
36KB
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Filesize
512KB
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Filesize
6.9MB
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Filesize
256KB
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Filesize
6.9MB