Analysis
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max time kernel
150s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
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submitted
18-09-2023 02:14
General
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Target
d7cb8a2d60e1818d0638a4c38cd6fae475dc83ab7b2bde9827ecc4e4a7ce6ed7.exe
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Size
312KB
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MD5
9824d07cea51069c0042eff0e46d1ad2
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SHA1
70ef130a8f88076dc671ab9873b2a3a3c45818fc
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SHA256
d7cb8a2d60e1818d0638a4c38cd6fae475dc83ab7b2bde9827ecc4e4a7ce6ed7
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SHA512
6d38269e1c93c7e8bd6668cd26947cb821043c9bcbcb19d586795e0fb3d52b8a492e3817eef912bae165973c001c205fd879bbca9810339e6b45bda1651e3bb9
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SSDEEP
6144:XAo4v3KmeRDWs0cSsm42PWB1vEtf8h81dZgjvxbtIGnWSPgYYshfnmU3H1l5Fy4:XGimeAs0cuvuB14I9JWfWnNl
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 (326) 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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Program crash 1 IoCs
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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\d7cb8a2d60e1818d0638a4c38cd6fae475dc83ab7b2bde9827ecc4e4a7ce6ed7.exe"C:\Users\Admin\AppData\Local\Temp\d7cb8a2d60e1818d0638a4c38cd6fae475dc83ab7b2bde9827ecc4e4a7ce6ed7.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\d7cb8a2d60e1818d0638a4c38cd6fae475dc83ab7b2bde9827ecc4e4a7ce6ed7.exeC:\Users\Admin\AppData\Local\Temp\d7cb8a2d60e1818d0638a4c38cd6fae475dc83ab7b2bde9827ecc4e4a7ce6ed7.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\d7cb8a2d60e1818d0638a4c38cd6fae475dc83ab7b2bde9827ecc4e4a7ce6ed7.exe"C:\Users\Admin\AppData\Local\Temp\d7cb8a2d60e1818d0638a4c38cd6fae475dc83ab7b2bde9827ecc4e4a7ce6ed7.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\d7cb8a2d60e1818d0638a4c38cd6fae475dc83ab7b2bde9827ecc4e4a7ce6ed7.exeC:\Users\Admin\AppData\Local\Temp\d7cb8a2d60e1818d0638a4c38cd6fae475dc83ab7b2bde9827ecc4e4a7ce6ed7.exe4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2000 -s 1645⤵
- Program crash
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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\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\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "F:\info.hta"3⤵
- Modifies Internet Explorer settings
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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
MD5515261551f9394361b3286bcb34c7f9c
SHA1b63185b18a5b6e3695305191ac402ab45351312b
SHA2566f38dc5604b9bc83f1f88b37a98df2c5422664498524f78bb708e58f723094df
SHA5122e56d565789b829e9c980d32826f64fbe6cc9a1367b718c04aaef65b19e9bdf1db212ab2a2173b312a59d468a9d73fac90f958cfce272cf38de03675ac750cfc
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Filesize
5KB
MD580e8e8d538f3829780cc31898b95eece
SHA1925f7eab24fe2bed16ef6e727f66935a26a2f6a7
SHA256dc551ad2583eb71f23526e2d13a429df9a40ada0436be76646ab075de17ae556
SHA51227d86c6a298db22790b8fec8e9de9ed5f61c99b4b1141d3fba201bd413f71507855b0378929cb7d790bd219bdc7105ae017fad4866cadc3dc19c6a69931755be
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Filesize
5KB
MD580e8e8d538f3829780cc31898b95eece
SHA1925f7eab24fe2bed16ef6e727f66935a26a2f6a7
SHA256dc551ad2583eb71f23526e2d13a429df9a40ada0436be76646ab075de17ae556
SHA51227d86c6a298db22790b8fec8e9de9ed5f61c99b4b1141d3fba201bd413f71507855b0378929cb7d790bd219bdc7105ae017fad4866cadc3dc19c6a69931755be
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Filesize
5KB
MD580e8e8d538f3829780cc31898b95eece
SHA1925f7eab24fe2bed16ef6e727f66935a26a2f6a7
SHA256dc551ad2583eb71f23526e2d13a429df9a40ada0436be76646ab075de17ae556
SHA51227d86c6a298db22790b8fec8e9de9ed5f61c99b4b1141d3fba201bd413f71507855b0378929cb7d790bd219bdc7105ae017fad4866cadc3dc19c6a69931755be
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Filesize
5KB
MD580e8e8d538f3829780cc31898b95eece
SHA1925f7eab24fe2bed16ef6e727f66935a26a2f6a7
SHA256dc551ad2583eb71f23526e2d13a429df9a40ada0436be76646ab075de17ae556
SHA51227d86c6a298db22790b8fec8e9de9ed5f61c99b4b1141d3fba201bd413f71507855b0378929cb7d790bd219bdc7105ae017fad4866cadc3dc19c6a69931755be
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Filesize
5KB
MD580e8e8d538f3829780cc31898b95eece
SHA1925f7eab24fe2bed16ef6e727f66935a26a2f6a7
SHA256dc551ad2583eb71f23526e2d13a429df9a40ada0436be76646ab075de17ae556
SHA51227d86c6a298db22790b8fec8e9de9ed5f61c99b4b1141d3fba201bd413f71507855b0378929cb7d790bd219bdc7105ae017fad4866cadc3dc19c6a69931755be
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Filesize
4KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
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Filesize
76KB
-
Filesize
76KB
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Filesize
4KB
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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
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Filesize
76KB
-
Filesize
6.9MB
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Filesize
336KB
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Filesize
304KB
-
Filesize
208KB
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Filesize
256KB
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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
256KB
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Filesize
6.9MB
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Filesize
336KB