Analysis
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max time kernel
150s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
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submitted
14-07-2023 08:06
General
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Target
a2f3d796dc2c2f474188db58d5ca7593.exe
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Size
165KB
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MD5
a2f3d796dc2c2f474188db58d5ca7593
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SHA1
dc88893abba370aab576dcc9bd60b5fc7bb5dd4e
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SHA256
408d62cbf4789d9533230eff49b8b45c11b01fd8c8d6d65ec339725d7521a48c
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SHA512
9a454f6eb65ef53baa5cff2e2dd3b4691e80acc37b78e27b4832a045420942425aa458243d3640fe9b3d5c756cfb8d65d7f828cd4b6633228a6500327c1f2b7c
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SSDEEP
3072:RONnlLWEFpHEVITy9VG4Req0CFkIOomD7Pp65vOs2C:+lLWcpHuSM3IGFROokP2Om
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 (479) 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 3 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\a2f3d796dc2c2f474188db58d5ca7593.exe"C:\Users\Admin\AppData\Local\Temp\a2f3d796dc2c2f474188db58d5ca7593.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\a2f3d796dc2c2f474188db58d5ca7593.exe"C:\Users\Admin\AppData\Local\Temp\a2f3d796dc2c2f474188db58d5ca7593.exe"2⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2840 -s 4603⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2840 -s 4683⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2840 -s 4963⤵
- 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\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\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2840 -ip 28401⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2840 -ip 28401⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2840 -ip 28401⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
3.2MB
MD5d7b252c5a72332badba443f15fb3cb9d
SHA1fb8e441941bd9fb0a520f333ead33a6622aee085
SHA256d44f89f8a015cd3011d1c1c6831a8855bb64096ffb6aa59baa45a366fd117c1c
SHA5129e3c071a7df5e0f3d5a0e2608ea1504d9b4dc297aae69eff9e5dcac3e085ef4d5e270bf9f077473fb71683c06a0f5fc3cd6d479f35135555d74e52d8c4c91bfd
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Filesize
5KB
MD55795f69498595dce0119d180d01285d7
SHA187164ef3ae50f0236347d706e95ced9cdead0fcb
SHA25667e3ec55cdf584918488b56a714d684a7cc8f0ca7598f0940348588d7637a3cc
SHA512ca568a44652ecd40fb04950bd08d4b91bb6e48fcafbe1d15239d61ea2861adb8f572dfabd548088c103e57a53c64c1ff01ae0ae139c300fc4c19b508e76cf4db
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Filesize
5KB
MD55795f69498595dce0119d180d01285d7
SHA187164ef3ae50f0236347d706e95ced9cdead0fcb
SHA25667e3ec55cdf584918488b56a714d684a7cc8f0ca7598f0940348588d7637a3cc
SHA512ca568a44652ecd40fb04950bd08d4b91bb6e48fcafbe1d15239d61ea2861adb8f572dfabd548088c103e57a53c64c1ff01ae0ae139c300fc4c19b508e76cf4db
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Filesize
5KB
MD55795f69498595dce0119d180d01285d7
SHA187164ef3ae50f0236347d706e95ced9cdead0fcb
SHA25667e3ec55cdf584918488b56a714d684a7cc8f0ca7598f0940348588d7637a3cc
SHA512ca568a44652ecd40fb04950bd08d4b91bb6e48fcafbe1d15239d61ea2861adb8f572dfabd548088c103e57a53c64c1ff01ae0ae139c300fc4c19b508e76cf4db
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Filesize
5KB
MD55795f69498595dce0119d180d01285d7
SHA187164ef3ae50f0236347d706e95ced9cdead0fcb
SHA25667e3ec55cdf584918488b56a714d684a7cc8f0ca7598f0940348588d7637a3cc
SHA512ca568a44652ecd40fb04950bd08d4b91bb6e48fcafbe1d15239d61ea2861adb8f572dfabd548088c103e57a53c64c1ff01ae0ae139c300fc4c19b508e76cf4db
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Filesize
5KB
MD55795f69498595dce0119d180d01285d7
SHA187164ef3ae50f0236347d706e95ced9cdead0fcb
SHA25667e3ec55cdf584918488b56a714d684a7cc8f0ca7598f0940348588d7637a3cc
SHA512ca568a44652ecd40fb04950bd08d4b91bb6e48fcafbe1d15239d61ea2861adb8f572dfabd548088c103e57a53c64c1ff01ae0ae139c300fc4c19b508e76cf4db
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Filesize
60KB
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Filesize
616KB
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Filesize
616KB
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Filesize
60KB
-
Filesize
616KB
-
Filesize
616KB
-
Filesize
616KB
-
Filesize
616KB
-
Filesize
616KB
-
Filesize
1024KB
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Filesize
1024KB
-
Filesize
616KB
-
Filesize
616KB
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Filesize
1024KB