Analysis
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max time kernel
151s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
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submitted
12-10-2023 16:15
General
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Target
97a4d094f86b757b3fb0e189f2843a7af8d0ec43f9805214e89992528e83b5d7_JC.exe
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Size
270KB
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MD5
0a2f0447233fa3f8c754fc8142ab6f7a
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SHA1
57ad4363343ac0ac26e953bf5473e50327ce3994
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SHA256
97a4d094f86b757b3fb0e189f2843a7af8d0ec43f9805214e89992528e83b5d7
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SHA512
764a1f3b939efa5f1e1e1794064bc3f8de14787c27802f75e352f7c62b4ef8822716c81a6ef32c9eb4100f8e4ae0eb7df9283a3beee3e190d548a472bb8c1117
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SSDEEP
6144:Vnc5VNMxG6QK8HwEFd2PTwwfyb2lMIw6Ou6AiC:VgN2G6v8HwQd2PleKVONBC
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 (346) 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) 4 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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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 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 51 IoCs
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Suspicious use of WriteProcessMemory 41 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\97a4d094f86b757b3fb0e189f2843a7af8d0ec43f9805214e89992528e83b5d7_JC.exe"C:\Users\Admin\AppData\Local\Temp\97a4d094f86b757b3fb0e189f2843a7af8d0ec43f9805214e89992528e83b5d7_JC.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\97a4d094f86b757b3fb0e189f2843a7af8d0ec43f9805214e89992528e83b5d7_JC.exeC:\Users\Admin\AppData\Local\Temp\97a4d094f86b757b3fb0e189f2843a7af8d0ec43f9805214e89992528e83b5d7_JC.exe2⤵
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C:\Users\Admin\AppData\Local\Temp\97a4d094f86b757b3fb0e189f2843a7af8d0ec43f9805214e89992528e83b5d7_JC.exeC:\Users\Admin\AppData\Local\Temp\97a4d094f86b757b3fb0e189f2843a7af8d0ec43f9805214e89992528e83b5d7_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\97a4d094f86b757b3fb0e189f2843a7af8d0ec43f9805214e89992528e83b5d7_JC.exe"C:\Users\Admin\AppData\Local\Temp\97a4d094f86b757b3fb0e189f2843a7af8d0ec43f9805214e89992528e83b5d7_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\97a4d094f86b757b3fb0e189f2843a7af8d0ec43f9805214e89992528e83b5d7_JC.exeC:\Users\Admin\AppData\Local\Temp\97a4d094f86b757b3fb0e189f2843a7af8d0ec43f9805214e89992528e83b5d7_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\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\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\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)
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
1Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems64.dll.id[74C9E2C7-3483].[[email protected]].8baseFilesize
3.2MB
MD525e73ff5fef453e620fa043c1b59f3c3
SHA156bff51a048af366f96bb61efc13c5c2ccfc26c7
SHA256267b9fa9ef669686cf7f935194f7b3724752be68449c37c557a89bbbdaa1ffd5
SHA5125c72958a99f309c94034626e3d14a7429c929a66139228abae6c11adcf4587a73e81cd5c0cc9e640ce7961952ca796acf90cf24feccce7dcacf7c68f25ba4479
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\97a4d094f86b757b3fb0e189f2843a7af8d0ec43f9805214e89992528e83b5d7_JC.exe.logFilesize
927B
MD54a911455784f74e368a4c2c7876d76f4
SHA1a1700a0849ffb4f26671eb76da2489946b821c34
SHA256264098e15b5b33d425f3b76e45b7976b58f917048125041135f7e60d8151108c
SHA5124617591400409e1930195795a55e20d5f063042bb3e9fd1955099066e507b6ac8a1e3ae54cc42418e2639149b31bf7e58cd5743670d9030a15e29f14d813815d
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memory/756-54-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/756-13-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/756-31-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/756-33-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/756-2028-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/756-947-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/756-8-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/756-11-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/756-485-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/756-35-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/756-63-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/756-40-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/756-42-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/756-39-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/756-2040-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/756-38-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/1692-21-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/2012-4-0x0000000005120000-0x0000000005154000-memory.dmpFilesize
208KB
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memory/2012-3-0x0000000005210000-0x0000000005220000-memory.dmpFilesize
64KB
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memory/2012-0-0x0000000074430000-0x0000000074BE0000-memory.dmpFilesize
7.7MB
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memory/2012-2-0x0000000002B70000-0x0000000002BB6000-memory.dmpFilesize
280KB
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memory/2012-1-0x0000000000710000-0x000000000075A000-memory.dmpFilesize
296KB
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memory/2012-12-0x0000000074430000-0x0000000074BE0000-memory.dmpFilesize
7.7MB
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memory/2012-7-0x0000000074430000-0x0000000074BE0000-memory.dmpFilesize
7.7MB
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memory/2012-6-0x00000000057D0000-0x0000000005D74000-memory.dmpFilesize
5.6MB
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memory/2012-5-0x0000000005160000-0x00000000051AC000-memory.dmpFilesize
304KB
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memory/4076-20-0x00000000744D0000-0x0000000074C80000-memory.dmpFilesize
7.7MB
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memory/4076-15-0x00000000744D0000-0x0000000074C80000-memory.dmpFilesize
7.7MB
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memory/4076-16-0x00000000054F0000-0x0000000005500000-memory.dmpFilesize
64KB
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memory/5116-834-0x00007FF9C3026000-0x00007FF9C3028000-memory.dmpFilesize
8KB