Analysis
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max time kernel
150s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
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submitted
10-10-2023 10:50
General
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Target
226c69fbd80993cd5f17f696aa924bcb.exe
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Size
782KB
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MD5
226c69fbd80993cd5f17f696aa924bcb
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SHA1
1aa0bf6a2470de52934be70d329a3e80e00fbd0b
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SHA256
2cfd30a7982b90be60f83fe5f4132999ac50d0d63d9681d8d50c3c8271faa34b
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SHA512
cf55ad1be4e88305b33cc48385c1f3e0581bbcc89a6f679b3905205fe55bea21c814dd13736e0cd9a4873757ebd8c0359a70e02df2fd6ef67415a3b76b70ebaf
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SSDEEP
12288:nhnPdo71+rsm5svWgNt6pAes0MiwLg2kLpkXfrfaEyC6gG5kmtcM0JIM1EdMEAL1:58ism5svWgufpkXfrfaEH07YIO0aL0w
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 (311) 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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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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Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
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Modifies Internet Explorer settings 1 TTPs 4 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 64 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\226c69fbd80993cd5f17f696aa924bcb.exe"C:\Users\Admin\AppData\Local\Temp\226c69fbd80993cd5f17f696aa924bcb.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\226c69fbd80993cd5f17f696aa924bcb.exeC:\Users\Admin\AppData\Local\Temp\226c69fbd80993cd5f17f696aa924bcb.exe2⤵
- Drops startup file
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\226c69fbd80993cd5f17f696aa924bcb.exe"C:\Users\Admin\AppData\Local\Temp\226c69fbd80993cd5f17f696aa924bcb.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\226c69fbd80993cd5f17f696aa924bcb.exeC:\Users\Admin\AppData\Local\Temp\226c69fbd80993cd5f17f696aa924bcb.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⤵
- 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\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\info.hta"3⤵
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\desktop\info.hta"3⤵
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\info.hta"3⤵
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "F:\info.hta"3⤵
- Modifies Internet Explorer settings
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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⤵
- 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⤵
Network
MITRE ATT&CK Enterprise v15
Persistence
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
143.1MB
MD501051b3615bf5d68c6cdda2270c6e2e1
SHA12fb22507b21b6154503cf509ba00ea23fd79a31c
SHA256ad92394bae77c05bb84079c87e24556c331f958519ba05b999d3acafe044a0ea
SHA512e0609b0f4937f33a13a8a6820be9911dd66faf168ce4e76540f7f830d5e49e9d1d7b518c4d84741e2767bd4053c32f04670ea6fbbbc426cdac14c2d1a3c577fb
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Filesize
5KB
MD5dc02ae91a061f14304f9b0c1226620a1
SHA15a21e6868b03591f3ff6972bf8232e65f55f26c6
SHA2561eea17118242dbc760c97e0dbcba1e09f272f407b1cadf7ec097fcd17e01521d
SHA512c129c929aa27ce1359a204ba4d2b6b5656d8b9c992ca48d3e2655d6059884c5249ae380250b131774ed33b7c318f036dd935bbf379262da7bb52ae465516145f
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Filesize
5KB
MD5dc02ae91a061f14304f9b0c1226620a1
SHA15a21e6868b03591f3ff6972bf8232e65f55f26c6
SHA2561eea17118242dbc760c97e0dbcba1e09f272f407b1cadf7ec097fcd17e01521d
SHA512c129c929aa27ce1359a204ba4d2b6b5656d8b9c992ca48d3e2655d6059884c5249ae380250b131774ed33b7c318f036dd935bbf379262da7bb52ae465516145f
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Filesize
5KB
MD5dc02ae91a061f14304f9b0c1226620a1
SHA15a21e6868b03591f3ff6972bf8232e65f55f26c6
SHA2561eea17118242dbc760c97e0dbcba1e09f272f407b1cadf7ec097fcd17e01521d
SHA512c129c929aa27ce1359a204ba4d2b6b5656d8b9c992ca48d3e2655d6059884c5249ae380250b131774ed33b7c318f036dd935bbf379262da7bb52ae465516145f
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Filesize
5KB
MD5dc02ae91a061f14304f9b0c1226620a1
SHA15a21e6868b03591f3ff6972bf8232e65f55f26c6
SHA2561eea17118242dbc760c97e0dbcba1e09f272f407b1cadf7ec097fcd17e01521d
SHA512c129c929aa27ce1359a204ba4d2b6b5656d8b9c992ca48d3e2655d6059884c5249ae380250b131774ed33b7c318f036dd935bbf379262da7bb52ae465516145f
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Filesize
5KB
MD5dc02ae91a061f14304f9b0c1226620a1
SHA15a21e6868b03591f3ff6972bf8232e65f55f26c6
SHA2561eea17118242dbc760c97e0dbcba1e09f272f407b1cadf7ec097fcd17e01521d
SHA512c129c929aa27ce1359a204ba4d2b6b5656d8b9c992ca48d3e2655d6059884c5249ae380250b131774ed33b7c318f036dd935bbf379262da7bb52ae465516145f
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Filesize
4KB
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Filesize
36KB
-
Filesize
808KB
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Filesize
304KB
-
Filesize
208KB
-
Filesize
280KB
-
Filesize
312KB
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Filesize
256KB
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Filesize
6.9MB
-
Filesize
6.9MB
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Filesize
280KB
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Filesize
6.9MB
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Filesize
6.9MB
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Filesize
808KB
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Filesize
256KB
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Filesize
76KB
-
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
4KB
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Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
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Filesize
76KB