Analysis
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max time kernel
160s -
max time network
160s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
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submitted
04-10-2023 00:28
General
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Target
eb24adb38f36113fe71f942596c355afd59a2e83a0663daf32ae9bb30059732c.exe
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Size
744KB
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MD5
8b3ebf83ef13fc6fb805a60851635751
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SHA1
72a285b0b7ddd02a269dcdd8a77e93e32d475344
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SHA256
eb24adb38f36113fe71f942596c355afd59a2e83a0663daf32ae9bb30059732c
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SHA512
d04197080a6124cddd8ce2b8e7c2cd53ff6adf623379aa80f1206ebc3d2bac169a01c18a9eeeef9d71eb37e7a0e2232eecbf130fe577c2089aea05a7542caccf
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SSDEEP
12288:MQwyiloPKmAGzrdm+blQnjL0U0ESJ2caaE17hrCyvMzu6FRAbKSXut0wGc0U6xbP:syilG1AGzrdm+ajoU82caaEDWyvMW+lM
Malware Config
Extracted
C:\info.hta
class='mark'>[email protected]</span></div>
http://www.w3.org/TR/html4/strict.dtd'>
Extracted
C:\users\public\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 (468) 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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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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Suspicious use of SetThreadContext 2 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 62 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\eb24adb38f36113fe71f942596c355afd59a2e83a0663daf32ae9bb30059732c.exe"C:\Users\Admin\AppData\Local\Temp\eb24adb38f36113fe71f942596c355afd59a2e83a0663daf32ae9bb30059732c.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\eb24adb38f36113fe71f942596c355afd59a2e83a0663daf32ae9bb30059732c.exeC:\Users\Admin\AppData\Local\Temp\eb24adb38f36113fe71f942596c355afd59a2e83a0663daf32ae9bb30059732c.exe2⤵
- 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\eb24adb38f36113fe71f942596c355afd59a2e83a0663daf32ae9bb30059732c.exe"C:\Users\Admin\AppData\Local\Temp\eb24adb38f36113fe71f942596c355afd59a2e83a0663daf32ae9bb30059732c.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\eb24adb38f36113fe71f942596c355afd59a2e83a0663daf32ae9bb30059732c.exeC:\Users\Admin\AppData\Local\Temp\eb24adb38f36113fe71f942596c355afd59a2e83a0663daf32ae9bb30059732c.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\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}3⤵
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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}3⤵
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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}3⤵
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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}3⤵
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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⤵
- Checks SCSI registry key(s)
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Privilege Escalation
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
3.2MB
MD5e9a00019b3e467aa75cf0a2959834caa
SHA14f5437ffc6dce81408b51a102f5315078efd6a31
SHA256b0203a42c1c389a5ffb596d158b37b85bdd3f2bf315dd5b54a3947c70218b8c2
SHA51269cb49d3fbd91e8a7f6727e7ba749946474c3f2683f3cf6df428b2973bb8f6c7c69dd0a16f47dba6bab0d50199ffe46b028b8e3d26c93170efc653040d998d50
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Filesize
1KB
MD58c2da65103d6b46d8cf610b118210cf0
SHA19db4638340bb74f2af3161cc2c9c0b8b32e6ab65
SHA2560e48e2efd419951e0eb9a8d942493cfdf5540d1d19ff9dae6f145fb3ebcbeeac
SHA5123cf5a125276e264cd8478f2b92d3848fb68b96d46eb4a39e650d09df02068c274881a1c314cdfbfdcb452672fb70dd8becf3ffe9562d39919d9c4d6b07fbb614
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Filesize
5KB
MD558b30965ffdd86bd5a38d8da7b805f08
SHA1872b11231e2e126240010aec137c2dc7e31d3e83
SHA256ab19a3cba022343e25f6eb16fcebafada98cdb06695536e62ee9c3fb88fec7fb
SHA5124fe75c7fde059d23bd69ad46717c5ae9df4de47141ef70bf63872404ba35a3ccbf2f0168018b93b3dbd34571dd11b368ade7ec303949887b4ee68fd13359cfa6
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Filesize
5KB
MD558b30965ffdd86bd5a38d8da7b805f08
SHA1872b11231e2e126240010aec137c2dc7e31d3e83
SHA256ab19a3cba022343e25f6eb16fcebafada98cdb06695536e62ee9c3fb88fec7fb
SHA5124fe75c7fde059d23bd69ad46717c5ae9df4de47141ef70bf63872404ba35a3ccbf2f0168018b93b3dbd34571dd11b368ade7ec303949887b4ee68fd13359cfa6
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Filesize
5KB
MD558b30965ffdd86bd5a38d8da7b805f08
SHA1872b11231e2e126240010aec137c2dc7e31d3e83
SHA256ab19a3cba022343e25f6eb16fcebafada98cdb06695536e62ee9c3fb88fec7fb
SHA5124fe75c7fde059d23bd69ad46717c5ae9df4de47141ef70bf63872404ba35a3ccbf2f0168018b93b3dbd34571dd11b368ade7ec303949887b4ee68fd13359cfa6
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Filesize
5KB
MD558b30965ffdd86bd5a38d8da7b805f08
SHA1872b11231e2e126240010aec137c2dc7e31d3e83
SHA256ab19a3cba022343e25f6eb16fcebafada98cdb06695536e62ee9c3fb88fec7fb
SHA5124fe75c7fde059d23bd69ad46717c5ae9df4de47141ef70bf63872404ba35a3ccbf2f0168018b93b3dbd34571dd11b368ade7ec303949887b4ee68fd13359cfa6
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Filesize
5KB
MD558b30965ffdd86bd5a38d8da7b805f08
SHA1872b11231e2e126240010aec137c2dc7e31d3e83
SHA256ab19a3cba022343e25f6eb16fcebafada98cdb06695536e62ee9c3fb88fec7fb
SHA5124fe75c7fde059d23bd69ad46717c5ae9df4de47141ef70bf63872404ba35a3ccbf2f0168018b93b3dbd34571dd11b368ade7ec303949887b4ee68fd13359cfa6
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Filesize
76KB
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Filesize
7.7MB
-
Filesize
64KB
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Filesize
7.7MB
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Filesize
4KB
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Filesize
64KB
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Filesize
7.7MB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
7.7MB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
4KB
-
Filesize
216KB
-
Filesize
304KB
-
Filesize
768KB
-
Filesize
728KB
-
Filesize
7.7MB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
5.6MB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
728KB
-
Filesize
752KB
-
Filesize
40KB
-
Filesize
64KB
-
Filesize
584KB
-
Filesize
76KB
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Filesize
76KB