Analysis
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max time kernel
150s -
max time network
120s -
platform
windows10-1703_x64 -
resource
win10-20230703-en -
resource tags
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submitted
14-07-2023 23:29
General
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Target
a2333bcbbdbf6846ea6945637f93ecc2500a32bbfa9032c4cc39021a4e41a855.exe
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Size
164KB
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MD5
de348ef9eed7ccdaed5a70ae15796a86
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SHA1
42914d94e8024ca94e58bb4bd9cfa4d0ae524975
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SHA256
a2333bcbbdbf6846ea6945637f93ecc2500a32bbfa9032c4cc39021a4e41a855
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SHA512
605bdb115b9fc95b1c0924f01b3b62b27737d94fe97825e81ebc5f1de107a317bd47fbe88be9d2ac4e6b3c9d0d537a8b38986b24480a54495442c6206e9eb163
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SSDEEP
3072:/pL1jrjayrgtLj/ysivDtEt0TYav9hk15A74:BL1bagg1jyNvet0TYC9V8
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 (448) 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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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\a2333bcbbdbf6846ea6945637f93ecc2500a32bbfa9032c4cc39021a4e41a855.exe"C:\Users\Admin\AppData\Local\Temp\a2333bcbbdbf6846ea6945637f93ecc2500a32bbfa9032c4cc39021a4e41a855.exe"1⤵
- 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\a2333bcbbdbf6846ea6945637f93ecc2500a32bbfa9032c4cc39021a4e41a855.exe"C:\Users\Admin\AppData\Local\Temp\a2333bcbbdbf6846ea6945637f93ecc2500a32bbfa9032c4cc39021a4e41a855.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\wbem\wmiprvse.exeC:\Windows\system32\wbem\wmiprvse.exe -Embedding1⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
3.2MB
MD55ce6487f6c615de1ae1116b4f1d68639
SHA14f61caf99141edfb3660e1881328ddfe162e01a9
SHA256045c0f071bd7f35e6ba50d591fff13f865d323afc43e120ad8295cae7fda8e03
SHA5128d62f896dd4e8cc7af32e729b1e498a063a450324ed298255447e98ce69cf38d29c5e7a8e3db16916d4a19c6a60414332de8ffcae7f4d50faeae7c7abd370e33
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Filesize
5KB
MD502676683f860d1109805017bcf34ddd2
SHA1f2e8d1f5c3b71404ac708278f306aa9a7858ab1d
SHA256a4c4117dd6584a14f725317966de98a1f63f5818855b4c5ea0287a9d51e186a0
SHA5123b1b343f72c3edb334ca3076fb779c2d6febc065db91708803d31303970e7b38576336a195f42287ad9f24a40742fdd7c32b5b325665b6f03ad154353f70e318
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Filesize
5KB
MD502676683f860d1109805017bcf34ddd2
SHA1f2e8d1f5c3b71404ac708278f306aa9a7858ab1d
SHA256a4c4117dd6584a14f725317966de98a1f63f5818855b4c5ea0287a9d51e186a0
SHA5123b1b343f72c3edb334ca3076fb779c2d6febc065db91708803d31303970e7b38576336a195f42287ad9f24a40742fdd7c32b5b325665b6f03ad154353f70e318
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Filesize
5KB
MD502676683f860d1109805017bcf34ddd2
SHA1f2e8d1f5c3b71404ac708278f306aa9a7858ab1d
SHA256a4c4117dd6584a14f725317966de98a1f63f5818855b4c5ea0287a9d51e186a0
SHA5123b1b343f72c3edb334ca3076fb779c2d6febc065db91708803d31303970e7b38576336a195f42287ad9f24a40742fdd7c32b5b325665b6f03ad154353f70e318
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Filesize
5KB
MD502676683f860d1109805017bcf34ddd2
SHA1f2e8d1f5c3b71404ac708278f306aa9a7858ab1d
SHA256a4c4117dd6584a14f725317966de98a1f63f5818855b4c5ea0287a9d51e186a0
SHA5123b1b343f72c3edb334ca3076fb779c2d6febc065db91708803d31303970e7b38576336a195f42287ad9f24a40742fdd7c32b5b325665b6f03ad154353f70e318
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Filesize
5KB
MD502676683f860d1109805017bcf34ddd2
SHA1f2e8d1f5c3b71404ac708278f306aa9a7858ab1d
SHA256a4c4117dd6584a14f725317966de98a1f63f5818855b4c5ea0287a9d51e186a0
SHA5123b1b343f72c3edb334ca3076fb779c2d6febc065db91708803d31303970e7b38576336a195f42287ad9f24a40742fdd7c32b5b325665b6f03ad154353f70e318
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Filesize
1024KB
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Filesize
908KB
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Filesize
60KB
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Filesize
908KB
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Filesize
908KB
-
Filesize
908KB
-
Filesize
908KB
-
Filesize
908KB
-
Filesize
908KB
-
Filesize
1024KB
-
Filesize
1024KB
-
Filesize
908KB
-
Filesize
60KB
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Filesize
908KB