Analysis
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max time kernel
150s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
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submitted
07-07-2023 18:29
General
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Target
518544e56e8ccee401ffa1b0a.exe
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Size
281KB
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MD5
2809e15a3a54484e042fe65fffd17409
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SHA1
4a8f0331abaf8f629b3c8220f0d55339cfa30223
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SHA256
518544e56e8ccee401ffa1b0a01a10ce23e49ec21ec441c6c7c3951b01c1b19c
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SHA512
698e16fd67861377e2ccaace4d0e1a619a8b7c68e8aefc4090e9d1cbbcdfb8d8aede76f9e63f81479f5a035e8008699a4d7175da6248e6e49eb7c81b3dba30c3
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SSDEEP
3072:D5IwIMZKkczttW5ivhjqKO1I9Goh6F4mAqeormMkpCWlunhNGA5yjszVIEe9:NIMsztZZ+KQqGo5QfmLpCoun6W
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 (476) 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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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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Program crash 1 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 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\518544e56e8ccee401ffa1b0a.exe"C:\Users\Admin\AppData\Local\Temp\518544e56e8ccee401ffa1b0a.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\518544e56e8ccee401ffa1b0a.exe"C:\Users\Admin\AppData\Local\Temp\518544e56e8ccee401ffa1b0a.exe"2⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4184 -s 4683⤵
- Program crash
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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\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\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\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4184 -ip 41841⤵
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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 v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
3.2MB
MD5627e1c8f4674beadb7d6baf7a85d56ab
SHA18135dfb450d0743cfb10d502473737b9f4789130
SHA256ecc16e2f54ece5a4c40325071840d968a77a8e163d9e4ec43dbf737426bf2377
SHA512372a1e861f59cf2a34b3f6316e0411860fc777665cd34c567655c13f327def063eaad56ddc51f2ee5db75e51a181d9b559742efa2f640b928008c9b401a74256
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Filesize
5KB
MD5a93a1ea5016ffee4cfc012ae42ce8d36
SHA116155fb2fef21cdabbd07d0911b4b2c50693319c
SHA256c484936ba26d03ecc6a20041ce39d8e326bf8a801f76a845c2e743429d9f9605
SHA51264a57527ebc296291accc3650966614dd06d514e97af05d54bfbf4713a85e036a9a44ee713e982439525a31e107c11f0a31c883422f7031c57a05f02441e81a5
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Filesize
5KB
MD5a93a1ea5016ffee4cfc012ae42ce8d36
SHA116155fb2fef21cdabbd07d0911b4b2c50693319c
SHA256c484936ba26d03ecc6a20041ce39d8e326bf8a801f76a845c2e743429d9f9605
SHA51264a57527ebc296291accc3650966614dd06d514e97af05d54bfbf4713a85e036a9a44ee713e982439525a31e107c11f0a31c883422f7031c57a05f02441e81a5
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Filesize
5KB
MD5a93a1ea5016ffee4cfc012ae42ce8d36
SHA116155fb2fef21cdabbd07d0911b4b2c50693319c
SHA256c484936ba26d03ecc6a20041ce39d8e326bf8a801f76a845c2e743429d9f9605
SHA51264a57527ebc296291accc3650966614dd06d514e97af05d54bfbf4713a85e036a9a44ee713e982439525a31e107c11f0a31c883422f7031c57a05f02441e81a5
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Filesize
5KB
MD5a93a1ea5016ffee4cfc012ae42ce8d36
SHA116155fb2fef21cdabbd07d0911b4b2c50693319c
SHA256c484936ba26d03ecc6a20041ce39d8e326bf8a801f76a845c2e743429d9f9605
SHA51264a57527ebc296291accc3650966614dd06d514e97af05d54bfbf4713a85e036a9a44ee713e982439525a31e107c11f0a31c883422f7031c57a05f02441e81a5
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Filesize
5KB
MD5a93a1ea5016ffee4cfc012ae42ce8d36
SHA116155fb2fef21cdabbd07d0911b4b2c50693319c
SHA256c484936ba26d03ecc6a20041ce39d8e326bf8a801f76a845c2e743429d9f9605
SHA51264a57527ebc296291accc3650966614dd06d514e97af05d54bfbf4713a85e036a9a44ee713e982439525a31e107c11f0a31c883422f7031c57a05f02441e81a5
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Filesize
5.2MB
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Filesize
5.2MB
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Filesize
5.2MB
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Filesize
5.2MB
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Filesize
5.2MB
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Filesize
5.2MB
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Filesize
84KB
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Filesize
60KB
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Filesize
5.2MB
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Filesize
5.2MB