Analysis
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max time kernel
150s -
max time network
129s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
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submitted
13-10-2023 17:13
General
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Target
NEAS.NEASNEAS7e18ff461e3fc159c9b6634c9250600ea4c62da604885697c95d9bac794109b8exeexeexe_JC.exe
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Size
549KB
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MD5
40a2a330dece024db63f275748eb3d7a
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SHA1
97508bbbff47aa06a381ff80428b8578d4daafb5
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SHA256
7e18ff461e3fc159c9b6634c9250600ea4c62da604885697c95d9bac794109b8
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SHA512
dcec48482463a960d47ea93b655dfec3ca88561fab3648b5ab8a8e7253a59d282c7cd4392daec9d3c95ebe9fb5265961705433c2374f6ffe2348123e586ed0a4
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SSDEEP
12288:yVthvdMSOXfbbOPFErVy0MRRp1o6tD5B:k3FMFXfXOPmRy0Wp1Ft
Malware Config
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 2 IoCs
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Renames multiple (140) 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 1 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 1 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) 11 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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Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of AdjustPrivilegeToken 49 IoCs
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Suspicious use of WriteProcessMemory 51 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.NEASNEAS7e18ff461e3fc159c9b6634c9250600ea4c62da604885697c95d9bac794109b8exeexeexe_JC.exe"C:\Users\Admin\AppData\Local\Temp\NEAS.NEASNEAS7e18ff461e3fc159c9b6634c9250600ea4c62da604885697c95d9bac794109b8exeexeexe_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.NEASNEAS7e18ff461e3fc159c9b6634c9250600ea4c62da604885697c95d9bac794109b8exeexeexe_JC.exeC:\Users\Admin\AppData\Local\Temp\NEAS.NEASNEAS7e18ff461e3fc159c9b6634c9250600ea4c62da604885697c95d9bac794109b8exeexeexe_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.NEASNEAS7e18ff461e3fc159c9b6634c9250600ea4c62da604885697c95d9bac794109b8exeexeexe_JC.exe"C:\Users\Admin\AppData\Local\Temp\NEAS.NEASNEAS7e18ff461e3fc159c9b6634c9250600ea4c62da604885697c95d9bac794109b8exeexeexe_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.NEASNEAS7e18ff461e3fc159c9b6634c9250600ea4c62da604885697c95d9bac794109b8exeexeexe_JC.exeC:\Users\Admin\AppData\Local\Temp\NEAS.NEASNEAS7e18ff461e3fc159c9b6634c9250600ea4c62da604885697c95d9bac794109b8exeexeexe_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\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
143.1MB
MD59e6081f109d83b1baa3c8105f6cea33f
SHA1568fc7a0ceda37ce8cebcb3af3a37abd64ec73f4
SHA25641ee4876ce93a6e508cdaf310fa4d102adcfe7d93092bcf43e74889c8fd7ae17
SHA512b120cc8051260df0986baa8c50f47eb33ec5c387b7dc844575ea23aee581c7e6dc45912203e7252c30ea388f547e730ce2fde76da194f0d80fcd7bc2ee21ee55
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Filesize
6.9MB
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Filesize
576KB
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Filesize
280KB
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Filesize
256KB
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Filesize
208KB
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Filesize
304KB
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Filesize
6.9MB
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Filesize
6.9MB
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Filesize
280KB
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Filesize
576KB
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Filesize
6.9MB
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Filesize
76KB
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Filesize
76KB
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Filesize
4KB
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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
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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
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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
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Filesize
36KB
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Filesize
4KB