Analysis
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max time kernel
150s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
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submitted
08-09-2023 19:14
General
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Target
23ce1ae76844de9ad9dc0307ed629bb7.exe
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Size
304KB
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MD5
23ce1ae76844de9ad9dc0307ed629bb7
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SHA1
9f70fd29900c659599155e8d758b938db00f43bd
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SHA256
33c861023479ddcaea82f2daee9d0394f304d0c33ba210f4c3c53a93cf9a474c
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SHA512
f750d46822cb91792dc13fb85beecfffe55ba8f31d2daeb8768e991216ac000ce35ae5ebaf0b7a0211406de27dd351017086e357292202ef4e6f9dedf0a35525
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SSDEEP
6144:kcdY7kZx95vjjdluPMFTphrynyqDrOPiZ2oszWiofu50gq+n4P0F6:hdDndlu6PqDrEe2osKNfQ0HM3E
Malware Config
Extracted
C:\info.hta
class='mark'>[email protected]</span></div>
http://www.w3.org/TR/html4/strict.dtd'>
Extracted
C:\Users\Admin\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 (320) 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\23ce1ae76844de9ad9dc0307ed629bb7.exe"C:\Users\Admin\AppData\Local\Temp\23ce1ae76844de9ad9dc0307ed629bb7.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\23ce1ae76844de9ad9dc0307ed629bb7.exeC:\Users\Admin\AppData\Local\Temp\23ce1ae76844de9ad9dc0307ed629bb7.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\23ce1ae76844de9ad9dc0307ed629bb7.exe"C:\Users\Admin\AppData\Local\Temp\23ce1ae76844de9ad9dc0307ed629bb7.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\23ce1ae76844de9ad9dc0307ed629bb7.exeC:\Users\Admin\AppData\Local\Temp\23ce1ae76844de9ad9dc0307ed629bb7.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
MD50d2da3c1f4ca270eaf6e26e4c187361d
SHA19c80efdc263c3f59ba0311fe0934ad187a0389aa
SHA2562e67cbc462231050ffc78c9e9a1d4b211e19b05b3fe78622012d071e4a95e1f8
SHA512d9d89eb7fc1d1bfa55663584010afa5a9ad55c49ccedb292601c9b34a667787aa6cd8a73c67e76c8c1db75d4cce824cfde1dcd34bf6e78b57f372b25048064e9
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Filesize
5KB
MD5aeddb2fac4597abc85a14a50088490c5
SHA1f926e397ab7551e2e3bf653b9ac1b39be2ba78a8
SHA2566c7742ed5894a1058e3650d643230570b54633a85f5324b4e8f4241463936a5d
SHA51252389078c0cd61b1cec775a4c55b097d082333ed969c0364aace093149c5bf5b37f390362dbf31052fab3f92d660c2c54585b79c96bcb0ab3ab7d6b43fb099dd
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Filesize
5KB
MD5aeddb2fac4597abc85a14a50088490c5
SHA1f926e397ab7551e2e3bf653b9ac1b39be2ba78a8
SHA2566c7742ed5894a1058e3650d643230570b54633a85f5324b4e8f4241463936a5d
SHA51252389078c0cd61b1cec775a4c55b097d082333ed969c0364aace093149c5bf5b37f390362dbf31052fab3f92d660c2c54585b79c96bcb0ab3ab7d6b43fb099dd
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Filesize
5KB
MD5aeddb2fac4597abc85a14a50088490c5
SHA1f926e397ab7551e2e3bf653b9ac1b39be2ba78a8
SHA2566c7742ed5894a1058e3650d643230570b54633a85f5324b4e8f4241463936a5d
SHA51252389078c0cd61b1cec775a4c55b097d082333ed969c0364aace093149c5bf5b37f390362dbf31052fab3f92d660c2c54585b79c96bcb0ab3ab7d6b43fb099dd
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Filesize
5KB
MD5aeddb2fac4597abc85a14a50088490c5
SHA1f926e397ab7551e2e3bf653b9ac1b39be2ba78a8
SHA2566c7742ed5894a1058e3650d643230570b54633a85f5324b4e8f4241463936a5d
SHA51252389078c0cd61b1cec775a4c55b097d082333ed969c0364aace093149c5bf5b37f390362dbf31052fab3f92d660c2c54585b79c96bcb0ab3ab7d6b43fb099dd
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Filesize
5KB
MD5aeddb2fac4597abc85a14a50088490c5
SHA1f926e397ab7551e2e3bf653b9ac1b39be2ba78a8
SHA2566c7742ed5894a1058e3650d643230570b54633a85f5324b4e8f4241463936a5d
SHA51252389078c0cd61b1cec775a4c55b097d082333ed969c0364aace093149c5bf5b37f390362dbf31052fab3f92d660c2c54585b79c96bcb0ab3ab7d6b43fb099dd
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Filesize
208KB
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Filesize
6.9MB
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Filesize
304KB
-
Filesize
328KB
-
Filesize
256KB
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Filesize
280KB
-
Filesize
6.9MB
-
Filesize
4KB
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Filesize
76KB
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Filesize
328KB
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Filesize
6.9MB
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Filesize
256KB
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Filesize
6.9MB
-
Filesize
76KB
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Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
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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
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
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Filesize
76KB