Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
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submitted
13-07-2023 21:38
General
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Target
281481eb8f1579206e55232754f47587a61bbe1460fc1f3b06157f31d214a290.exe
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Size
232KB
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MD5
b2243260d077693972cc92b7302cb372
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SHA1
1699650e3e6b1ab94de7d7d6630aa73ace143422
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SHA256
281481eb8f1579206e55232754f47587a61bbe1460fc1f3b06157f31d214a290
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SHA512
39f60638f5306205132e32f1e179598036cdb688c976cc7e169f304c180fceaeeb9b612862c57957241b4f3d6588bd4faf6c2ab36b9d76ac3d57a93f6649eed3
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SSDEEP
3072:pT4nTS9myNyLDLY2NQTqqmGkLm4eWT/tjIIssnQgYYM2RO74P:6imPYcQTHk6s1jIjsBM28U
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 (486) 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\281481eb8f1579206e55232754f47587a61bbe1460fc1f3b06157f31d214a290.exe"C:\Users\Admin\AppData\Local\Temp\281481eb8f1579206e55232754f47587a61bbe1460fc1f3b06157f31d214a290.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\281481eb8f1579206e55232754f47587a61bbe1460fc1f3b06157f31d214a290.exe"C:\Users\Admin\AppData\Local\Temp\281481eb8f1579206e55232754f47587a61bbe1460fc1f3b06157f31d214a290.exe"2⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3728 -s 4643⤵
- 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\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\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3728 -ip 37281⤵
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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
MD5face160300098bcd53a4c33ae5cc1214
SHA1d19db6b249dbbbb76b1d52f15fecd33c4c84f981
SHA256be2b5ec517bf4d0e72153100ca1c9c120407675206c8c6a57ca9797034df1784
SHA512561ddaa0d35c73b7b50d77b80790dba7fdb52d85f1c714fdb83fa490fcc3728c082960aa413d70c65f3ae43d9e343315767df4c5f0546d164396a00fa953d8a3
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Filesize
5KB
MD5f366cfd5156e882e6db20b8990bd230e
SHA1661b55b5ac7fb7f60c8e0412ad056d939e0d21d7
SHA25620723faf7fde2d82aa37cda68cf15cd532bbf61f5ded28d3dcfb2319cfd9abff
SHA512388d25cc7391fa43a6db59be7effdf2fd5c3a1033fb229b657ce03bc7d9ae01c3fbc808e0ad3bec6d54834cee08032608bafb90ebe8be32914ef9c2f5dfe16a8
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Filesize
5KB
MD5f366cfd5156e882e6db20b8990bd230e
SHA1661b55b5ac7fb7f60c8e0412ad056d939e0d21d7
SHA25620723faf7fde2d82aa37cda68cf15cd532bbf61f5ded28d3dcfb2319cfd9abff
SHA512388d25cc7391fa43a6db59be7effdf2fd5c3a1033fb229b657ce03bc7d9ae01c3fbc808e0ad3bec6d54834cee08032608bafb90ebe8be32914ef9c2f5dfe16a8
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Filesize
5KB
MD5f366cfd5156e882e6db20b8990bd230e
SHA1661b55b5ac7fb7f60c8e0412ad056d939e0d21d7
SHA25620723faf7fde2d82aa37cda68cf15cd532bbf61f5ded28d3dcfb2319cfd9abff
SHA512388d25cc7391fa43a6db59be7effdf2fd5c3a1033fb229b657ce03bc7d9ae01c3fbc808e0ad3bec6d54834cee08032608bafb90ebe8be32914ef9c2f5dfe16a8
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Filesize
5KB
MD5f366cfd5156e882e6db20b8990bd230e
SHA1661b55b5ac7fb7f60c8e0412ad056d939e0d21d7
SHA25620723faf7fde2d82aa37cda68cf15cd532bbf61f5ded28d3dcfb2319cfd9abff
SHA512388d25cc7391fa43a6db59be7effdf2fd5c3a1033fb229b657ce03bc7d9ae01c3fbc808e0ad3bec6d54834cee08032608bafb90ebe8be32914ef9c2f5dfe16a8
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Filesize
5KB
MD5f366cfd5156e882e6db20b8990bd230e
SHA1661b55b5ac7fb7f60c8e0412ad056d939e0d21d7
SHA25620723faf7fde2d82aa37cda68cf15cd532bbf61f5ded28d3dcfb2319cfd9abff
SHA512388d25cc7391fa43a6db59be7effdf2fd5c3a1033fb229b657ce03bc7d9ae01c3fbc808e0ad3bec6d54834cee08032608bafb90ebe8be32914ef9c2f5dfe16a8
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Filesize
1024KB
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Filesize
60KB
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Filesize
39.3MB
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Filesize
39.3MB
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Filesize
60KB
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Filesize
39.3MB
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Filesize
39.3MB
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Filesize
39.3MB
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Filesize
39.3MB
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Filesize
39.3MB
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Filesize
1024KB
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Filesize
39.3MB
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Filesize
39.3MB
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Filesize
1024KB