Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
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submitted
13-10-2023 22:02
General
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Target
f595f91a9966808cc85d11981e66e98043af9aeaaaa3893ef058b9a79c474f17.exe
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Size
629KB
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MD5
9b6470fcbb02fa19344e2f3b142f5038
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SHA1
3307c3ae97ed6be889720949083f93017d1a6675
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SHA256
f595f91a9966808cc85d11981e66e98043af9aeaaaa3893ef058b9a79c474f17
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SHA512
f44a6dc0d52bb0cdc5f34a67c608d0ebbcb6e370b2c078095b3a51670a4b07713762c9998949a6c3c451af482ca41a364d2aeb5f6b1bc4a6cedd8a6f8d7586f1
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SSDEEP
12288:Nwd3Bisv9NE1llpPykGRr9VXbtp/SH6UGk02AmuqpFIFYN9xc:uLv9NU/lyFRVXbniw2AI/0
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 (589) 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 9 IoCs
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Suspicious use of WriteProcessMemory 50 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\f595f91a9966808cc85d11981e66e98043af9aeaaaa3893ef058b9a79c474f17.exe"C:\Users\Admin\AppData\Local\Temp\f595f91a9966808cc85d11981e66e98043af9aeaaaa3893ef058b9a79c474f17.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\f595f91a9966808cc85d11981e66e98043af9aeaaaa3893ef058b9a79c474f17.exeC:\Users\Admin\AppData\Local\Temp\f595f91a9966808cc85d11981e66e98043af9aeaaaa3893ef058b9a79c474f17.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\f595f91a9966808cc85d11981e66e98043af9aeaaaa3893ef058b9a79c474f17.exe"C:\Users\Admin\AppData\Local\Temp\f595f91a9966808cc85d11981e66e98043af9aeaaaa3893ef058b9a79c474f17.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\f595f91a9966808cc85d11981e66e98043af9aeaaaa3893ef058b9a79c474f17.exeC:\Users\Admin\AppData\Local\Temp\f595f91a9966808cc85d11981e66e98043af9aeaaaa3893ef058b9a79c474f17.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⤵
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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\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⤵
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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⤵
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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
MD5bfab3a69ea72a82049c80bd4cce0b5c9
SHA136d81917b693b66d59b7da7fb80affffd62aae77
SHA2564c0f6e5ed6a78b5b9df7bf5fc5dd656a56e670ff8b8f580d1ce818de1bf11bbb
SHA51233743bb0eca685e866975ab0dcfa889bab3d2f3cab9d046070e2c4af1942677ecb27ef4868ad38c91c7d38620a663a0cd9d989772f0a12b9fb7e70825baac1a0
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Filesize
927B
MD5ff27e87d4bf1330435001e57e8244d60
SHA1b22264ed3cd4d35f8236278edd2512c3b7ecb355
SHA2567e9adf70ba438f8a38feac34e1b25bb4261fa506d00361ea7e5cde784651474e
SHA512d678aa2b42032ea0d811f9783abff7c94a6d674bd3dee74df706b7f95da7e51d84207320ea36226da4f8651e6ec618ea12d99d2d6d371bd1e98395518b8956e0
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Filesize
5KB
MD5e8177c10fed671637dda36af5e91af35
SHA1ce1eb7620b45e184df4628caaeeb61e52633d82e
SHA256c64de5f61321a54b94ba0881108b1e1b4ba0f465bbea692e97fc7fdcbc1c525f
SHA51256a951d86bd8c1b6b63d08e460dbe1297665531d6cbc355897f2c8aaab1acfce7821f14dba2857ac811464faccf2952884db5d50b85db676c9fd0f7664cfb96d
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Filesize
5KB
MD5e8177c10fed671637dda36af5e91af35
SHA1ce1eb7620b45e184df4628caaeeb61e52633d82e
SHA256c64de5f61321a54b94ba0881108b1e1b4ba0f465bbea692e97fc7fdcbc1c525f
SHA51256a951d86bd8c1b6b63d08e460dbe1297665531d6cbc355897f2c8aaab1acfce7821f14dba2857ac811464faccf2952884db5d50b85db676c9fd0f7664cfb96d
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Filesize
5KB
MD5e8177c10fed671637dda36af5e91af35
SHA1ce1eb7620b45e184df4628caaeeb61e52633d82e
SHA256c64de5f61321a54b94ba0881108b1e1b4ba0f465bbea692e97fc7fdcbc1c525f
SHA51256a951d86bd8c1b6b63d08e460dbe1297665531d6cbc355897f2c8aaab1acfce7821f14dba2857ac811464faccf2952884db5d50b85db676c9fd0f7664cfb96d
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Filesize
5KB
MD5e8177c10fed671637dda36af5e91af35
SHA1ce1eb7620b45e184df4628caaeeb61e52633d82e
SHA256c64de5f61321a54b94ba0881108b1e1b4ba0f465bbea692e97fc7fdcbc1c525f
SHA51256a951d86bd8c1b6b63d08e460dbe1297665531d6cbc355897f2c8aaab1acfce7821f14dba2857ac811464faccf2952884db5d50b85db676c9fd0f7664cfb96d
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Filesize
5KB
MD5e8177c10fed671637dda36af5e91af35
SHA1ce1eb7620b45e184df4628caaeeb61e52633d82e
SHA256c64de5f61321a54b94ba0881108b1e1b4ba0f465bbea692e97fc7fdcbc1c525f
SHA51256a951d86bd8c1b6b63d08e460dbe1297665531d6cbc355897f2c8aaab1acfce7821f14dba2857ac811464faccf2952884db5d50b85db676c9fd0f7664cfb96d
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
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Filesize
64KB
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Filesize
7.7MB
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Filesize
7.7MB
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Filesize
352KB
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Filesize
656KB
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Filesize
304KB
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Filesize
7.7MB
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Filesize
280KB
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Filesize
208KB
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Filesize
64KB
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Filesize
5.6MB
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Filesize
7.7MB
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Filesize
76KB