Analysis
-
max time kernel
150s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20231020-en -
resource tags
-
submitted
03-11-2023 18:24
General
-
Target
NEAS.c29630324d768c6e40b814164f6c2c6f33dd741392edc940cc852e67e1667a57exe_JC.exe
-
Size
56KB
-
MD5
c0edb05bd1e26666764757e7d6f6f09b
-
SHA1
330139df4594f4070ada6c89ec3d0a16abe14497
-
SHA256
c29630324d768c6e40b814164f6c2c6f33dd741392edc940cc852e67e1667a57
-
SHA512
f172c38d5d169523c56d5c551749c9b8bf6d1452b0c64666651757f46546ffe8bd445935b88faf16dc381a13a6b12a71934fef6c9fa434ee5974d0d3499d1790
-
SSDEEP
1536:gNeRBl5PT/rx1mzwRMSTdLpJ3obxhYPQg:gQRrmzwR5JfPQ
Malware Config
Extracted
C:\Users\Public\Desktop\info.hta
class='mark'>[email protected]</span></div>
http://www.w3.org/TR/html4/strict.dtd'>
Extracted
C:\users\public\desktop\info.hta
Signatures
-
Phobos
Phobos ransomware appeared at the beginning of 2019.
-
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
-
Modifies boot configuration data using bcdedit 1 TTPs 4 IoCs
-
Renames multiple (314) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
Deletes backup catalog 3 TTPs 2 IoCs
Uses wbadmin.exe to inhibit system recovery.
-
Modifies Windows Firewall 1 TTPs 2 IoCs
-
Drops startup file 3 IoCs
-
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Adds Run key to start application 2 TTPs 2 IoCs
-
Drops desktop.ini file(s) 64 IoCs
-
Drops file in Program Files directory 64 IoCs
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
-
Modifies Internet Explorer settings 1 TTPs 4 IoCs
-
Suspicious behavior: EnumeratesProcesses 64 IoCs
-
Suspicious use of AdjustPrivilegeToken 64 IoCs
-
Suspicious use of WriteProcessMemory 64 IoCs
-
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.
-
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Users\Admin\AppData\Local\Temp\NEAS.c29630324d768c6e40b814164f6c2c6f33dd741392edc940cc852e67e1667a57exe_JC.exe"C:\Users\Admin\AppData\Local\Temp\NEAS.c29630324d768c6e40b814164f6c2c6f33dd741392edc940cc852e67e1667a57exe_JC.exe"1⤵
- 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
-
C:\Users\Admin\AppData\Local\Temp\NEAS.c29630324d768c6e40b814164f6c2c6f33dd741392edc940cc852e67e1667a57exe_JC.exe"C:\Users\Admin\AppData\Local\Temp\NEAS.c29630324d768c6e40b814164f6c2c6f33dd741392edc940cc852e67e1667a57exe_JC.exe"2⤵
-
C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
-
C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
-
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- Deletes backup catalog
-
C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\netsh.exenetsh advfirewall set currentprofile state off3⤵
- Modifies Windows Firewall
-
C:\Windows\system32\netsh.exenetsh firewall set opmode mode=disable3⤵
- Modifies Windows Firewall
-
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\info.hta"2⤵
- Modifies Internet Explorer settings
-
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\desktop\info.hta"2⤵
- Modifies Internet Explorer settings
-
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\info.hta"2⤵
- Modifies Internet Explorer settings
-
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "F:\info.hta"2⤵
- Modifies Internet Explorer settings
-
C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
-
C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
-
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- Deletes backup catalog
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵
-
C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Persistence
Create or Modify System Process
1Windows Service
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\ProPsWW.cab.id[CDDF83E3-2939].[[email protected]].faustFilesize
143.1MB
MD539b52684bdd946d219d1068e2191b95a
SHA13f453e94e00f0e1bfd5a2f61822b757ce7aa0e3c
SHA2566b981de482cdea241ac366945262f09f832eb7a01589df8ed39a259a182d4ffe
SHA51225d2f163ca84b7fbdea2503fd2c2e9e4b119e25c073acbf6e2a6553e5aebb59dd4d287e121cce59d44c9cb3f26f4cb9caf32be5d34107ed4aceef4e61f23a3c5
-
C:\Users\Admin\Desktop\info.htaFilesize
5KB
MD5347438cf223439a52acc080f88d82afd
SHA128f9b41db14367abc3e489b9da2f6b4da8832274
SHA2560232cc5dd38a769caa3624f56750c50d859eadb0fea7ae925678145efa0cdfde
SHA512d9f08f6c7931de354101aa8c7d9fc7d470e194381f6ecef3dc49dd2def56ab1da8cb092da7c9ad4ca2a9bbc00f18ba2b8707daf36082da8311f9f3255e94ae02
-
C:\Users\Public\Desktop\info.htaFilesize
5KB
MD5347438cf223439a52acc080f88d82afd
SHA128f9b41db14367abc3e489b9da2f6b4da8832274
SHA2560232cc5dd38a769caa3624f56750c50d859eadb0fea7ae925678145efa0cdfde
SHA512d9f08f6c7931de354101aa8c7d9fc7d470e194381f6ecef3dc49dd2def56ab1da8cb092da7c9ad4ca2a9bbc00f18ba2b8707daf36082da8311f9f3255e94ae02
-
C:\info.htaFilesize
5KB
MD5347438cf223439a52acc080f88d82afd
SHA128f9b41db14367abc3e489b9da2f6b4da8832274
SHA2560232cc5dd38a769caa3624f56750c50d859eadb0fea7ae925678145efa0cdfde
SHA512d9f08f6c7931de354101aa8c7d9fc7d470e194381f6ecef3dc49dd2def56ab1da8cb092da7c9ad4ca2a9bbc00f18ba2b8707daf36082da8311f9f3255e94ae02
-
C:\users\public\desktop\info.htaFilesize
5KB
MD5347438cf223439a52acc080f88d82afd
SHA128f9b41db14367abc3e489b9da2f6b4da8832274
SHA2560232cc5dd38a769caa3624f56750c50d859eadb0fea7ae925678145efa0cdfde
SHA512d9f08f6c7931de354101aa8c7d9fc7d470e194381f6ecef3dc49dd2def56ab1da8cb092da7c9ad4ca2a9bbc00f18ba2b8707daf36082da8311f9f3255e94ae02
-
F:\info.htaFilesize
5KB
MD5347438cf223439a52acc080f88d82afd
SHA128f9b41db14367abc3e489b9da2f6b4da8832274
SHA2560232cc5dd38a769caa3624f56750c50d859eadb0fea7ae925678145efa0cdfde
SHA512d9f08f6c7931de354101aa8c7d9fc7d470e194381f6ecef3dc49dd2def56ab1da8cb092da7c9ad4ca2a9bbc00f18ba2b8707daf36082da8311f9f3255e94ae02