Analysis
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max time kernel
1799s -
max time network
1801s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
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submitted
20-04-2024 11:55
General
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Target
43f846c12c24a078ebe33f71e8ea3b4f75107aeb275e2c3cd9dc61617c9757fc.exe
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Size
55KB
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MD5
4e93c194b641d9b849f270531ec14d20
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SHA1
8b5a21254a0c10e3ca2570eeba490755197b544e
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SHA256
43f846c12c24a078ebe33f71e8ea3b4f75107aeb275e2c3cd9dc61617c9757fc
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SHA512
0c6dba53321b00a7b17bde84598de18cad9ecdae1a36209b6f13a99df96abe86987c2cbef132c6bc0ce80de75b4ad15351abd8c0c8e5c83bc17bb4f64713f2ec
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SSDEEP
1536:YNeRBl5PT/rx1mzwRMSTdLpJZtqoQOcO:YQRrmzwR5JAOF
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 4 IoCs
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Renames multiple (523) 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 2 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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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 42 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\43f846c12c24a078ebe33f71e8ea3b4f75107aeb275e2c3cd9dc61617c9757fc.exe"C:\Users\Admin\AppData\Local\Temp\43f846c12c24a078ebe33f71e8ea3b4f75107aeb275e2c3cd9dc61617c9757fc.exe"1⤵
- 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\43f846c12c24a078ebe33f71e8ea3b4f75107aeb275e2c3cd9dc61617c9757fc.exe"C:\Users\Admin\AppData\Local\Temp\43f846c12c24a078ebe33f71e8ea3b4f75107aeb275e2c3cd9dc61617c9757fc.exe"2⤵
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- Deletes backup catalog
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh advfirewall set currentprofile state off3⤵
- Modifies Windows Firewall
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C:\Windows\system32\netsh.exenetsh firewall set opmode mode=disable3⤵
- 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}2⤵
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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}2⤵
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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}2⤵
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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}2⤵
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- 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)
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C:\Windows\System32\WaaSMedicAgent.exeC:\Windows\System32\WaaSMedicAgent.exe 2b7173d71b5cc2df64965f9eee329797 dw0sDglxOUG5OVM917MhDA.0.1.0.0.01⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv1⤵
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C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe1⤵
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k UnistackSvcGroup1⤵
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
1Privilege Escalation
Create or Modify System Process
1Windows Service
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Indicator Removal
3File Deletion
3Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Program Files\Common Files\microsoft shared\ClickToRun\C2R32.dll.id[4C1E254C-2822].[[email protected]].eightFilesize
2.7MB
MD57dbbc55d58f46a7da8240d87bb8e80a2
SHA1d532dbb29bced360bc8f7b65e59e2d4b7d265858
SHA256a414d1e8d03678e768a7b70501de1374538cce4223e3673e6e235cadbf81ad73
SHA5120a6ff48a99eb7de2cabf65c1f8aab44ec876e9dfa257cd116b6832e13beb1aa05c6befa49bf15061eabeb3bbfef44d185aa497db7545195b7d28a0b38f77127c
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C:\info.htaFilesize
4KB
MD5466bca1f2dc7a488d0b837bd1b9f0de9
SHA15e444d3eaa91392aea5a9619cf44f41de4c86fe0
SHA2562b8481607f7b0d1096d5ed0cd8422248a7b94d003a862d7ed374056f33eeed8e
SHA512d5d5ff90002921891c5082f92155ebb610858a2ede4bdb86882299262dae001dc1d7de438bb2360db5cd8b45446f6ded67169b0b2c3a1d8589823c22fece9050
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memory/4152-12498-0x000002224B440000-0x000002224B450000-memory.dmpFilesize
64KB
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memory/4152-12514-0x000002224B540000-0x000002224B550000-memory.dmpFilesize
64KB
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memory/4152-12533-0x0000022253770000-0x0000022253771000-memory.dmpFilesize
4KB
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memory/4152-12535-0x00000222538B0000-0x00000222538B1000-memory.dmpFilesize
4KB
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memory/4152-12537-0x00000222538B0000-0x00000222538B1000-memory.dmpFilesize
4KB
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memory/4152-12538-0x00000222538C0000-0x00000222538C1000-memory.dmpFilesize
4KB
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memory/4152-12539-0x00000222538C0000-0x00000222538C1000-memory.dmpFilesize
4KB
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memory/4152-12540-0x00000222538C0000-0x00000222538C1000-memory.dmpFilesize
4KB
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memory/4152-12541-0x00000222538E0000-0x00000222538E1000-memory.dmpFilesize
4KB
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memory/4152-12542-0x00000222538E0000-0x00000222538E1000-memory.dmpFilesize
4KB
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memory/4152-12543-0x00000222538E0000-0x00000222538E1000-memory.dmpFilesize
4KB
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memory/4152-12544-0x00000222538E0000-0x00000222538E1000-memory.dmpFilesize
4KB
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memory/4152-12545-0x00000222538E0000-0x00000222538E1000-memory.dmpFilesize
4KB
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memory/4152-12546-0x00000222538E0000-0x00000222538E1000-memory.dmpFilesize
4KB
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memory/4152-12547-0x00000222538E0000-0x00000222538E1000-memory.dmpFilesize
4KB
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memory/4152-12548-0x00000222538E0000-0x00000222538E1000-memory.dmpFilesize
4KB
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memory/4152-12549-0x00000222538E0000-0x00000222538E1000-memory.dmpFilesize
4KB
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memory/4152-12550-0x00000222538E0000-0x00000222538E1000-memory.dmpFilesize
4KB
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memory/4152-12551-0x00000222538E0000-0x00000222538E1000-memory.dmpFilesize
4KB
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memory/4152-12552-0x00000222538E0000-0x00000222538E1000-memory.dmpFilesize
4KB
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memory/4152-12553-0x00000222538E0000-0x00000222538E1000-memory.dmpFilesize
4KB
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memory/4152-12554-0x00000222538E0000-0x00000222538E1000-memory.dmpFilesize
4KB
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memory/4152-12555-0x00000222538E0000-0x00000222538E1000-memory.dmpFilesize
4KB
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memory/4152-12556-0x00000222538E0000-0x00000222538E1000-memory.dmpFilesize
4KB
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memory/4152-12557-0x00000222538E0000-0x00000222538E1000-memory.dmpFilesize
4KB
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memory/4152-12558-0x00000222538E0000-0x00000222538E1000-memory.dmpFilesize
4KB
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memory/4152-12559-0x00000222538F0000-0x00000222538F1000-memory.dmpFilesize
4KB
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memory/4152-12560-0x00000222538F0000-0x00000222538F1000-memory.dmpFilesize
4KB
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memory/4152-12561-0x0000022253C00000-0x0000022253C01000-memory.dmpFilesize
4KB
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memory/4152-12562-0x0000022253950000-0x0000022253951000-memory.dmpFilesize
4KB
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memory/4152-12563-0x0000022253950000-0x0000022253951000-memory.dmpFilesize
4KB