Analysis
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max time kernel
148s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
23-09-2024 01:18
Behavioral task
behavioral1
Sample
794ba0b949b2144057a1b68752d8fa324f1a211afc2231328be82d17f9308979.exe
Resource
win7-20240704-en
General
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Target
794ba0b949b2144057a1b68752d8fa324f1a211afc2231328be82d17f9308979.exe
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Size
84KB
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MD5
a775d164cf76e9a9ff6afd7eb1e3ab2e
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SHA1
0b390cd5a44a64296b592360b6b74ac66fb26026
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SHA256
794ba0b949b2144057a1b68752d8fa324f1a211afc2231328be82d17f9308979
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SHA512
80b2d105d2fac2e56b7ea9e1b56057e94ffe594c314ea96668d387ab120b24be580c58d68d37aca07273d3ce80f0d74f072102469f35cb02e2295817e1f16808
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SSDEEP
1536:5Ei+lO/FmavM28kR1hDzc3zcq1ZI9PiDQIyQaQG9JXVfKo:WTlROxNs3zLjI4t3UXVfKo
Malware Config
Extracted
phorphiex
http://185.215.113.66/
http://91.202.233.141/
0xCa90599132C4D88907Bd8E046540284aa468a035
TRuGGXNDM1cavQ1AqMQHG8yfxP4QWVSMN6
qph44jx8r9k5xeq5cuf958krv3ewrnp5vc6hhdjd3r
XryzFMFVpDUvU7famUGf214EXD3xNUSmQf
rsXCXBf9SagxV8JfC12d8Bybk84oPdMNN9
AULzfBuUAPfCGAXoG5Vq14aP9s6fx3AH4Z
LTK4xdKPAgFHPLan8kriAD7eY4heyy73mB
MP8GEm8QpYgQYaMo8oM5NQhRBgDGiLZW5Q
4BB7ckkaPTyADc8trtuwDoZxywaR4eNL5cDJ3KBjq9GraN4mUFztf7mLS7WgT7Bh7uPqpjvA4ypVwXKCJ1vvLWWAFvSmDoD
15TssKwtjMtwy4vDLcLsQUZUD2B9f7eDjw85sBNVC5LRPPnC
1BzmrjmKPKSR2hH5BeJySfiVA676E8DYaK
ltc1qt0n3f0t7vz9k0mvcswk477shrxwjhf9sj5ykrp
3PMiLynrGVZ8oEqvoqC4hXD67B1WoALR4pc
3BiS1jaRpWtkqtfZGp9f1rXXts5DyUkaBX
DLUzwvyxN1RrwjByUPPzVMdfxNRPGVRMMA
t1J6GCPCiHW1eRdjJgDDu6b1vSVmL5U7Twh
stars125f3mw4xd9htpsq4zj5w5ezm5gags37yxxh6mj
bnb1msyt0djx4ecspfxg5en0ye465kg3kmv9utzml2
bc1ppypcmu3684n648gyj62gjp2rw0xy7w3vwfamatlg29ajp4z52desafa0sr
bc1qc9edl4hzl9jyt8twdad3zjeh2df2znq96tdezd
bitcoincash:qph44jx8r9k5xeq5cuf958krv3ewrnp5vc6hhdjd3r
GBQJMXYXPRIWFMXIFJR35ZB7LRKMB4PHCIUAUFR3TKUL6RDBZVLZEUJ3
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mutex
0t6rv5xwbh
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user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36
Signatures
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Modifies security service 2 TTPs 1 IoCs
Processes:
sysklnorbcv.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\Start = "4" sysklnorbcv.exe -
Phorphiex payload 1 IoCs
Processes:
resource yara_rule C:\Windows\sysklnorbcv.exe family_phorphiex -
Processes:
sysklnorbcv.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" sysklnorbcv.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" sysklnorbcv.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" sysklnorbcv.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" sysklnorbcv.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1" sysklnorbcv.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" sysklnorbcv.exe -
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
sysklnorbcv.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation sysklnorbcv.exe -
Executes dropped EXE 1 IoCs
Processes:
sysklnorbcv.exepid process 3248 sysklnorbcv.exe -
Processes:
sysklnorbcv.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" sysklnorbcv.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" sysklnorbcv.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiSpywareOverride = "1" sysklnorbcv.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" sysklnorbcv.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" sysklnorbcv.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1" sysklnorbcv.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" sysklnorbcv.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
794ba0b949b2144057a1b68752d8fa324f1a211afc2231328be82d17f9308979.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Settings = "C:\\Windows\\sysklnorbcv.exe" 794ba0b949b2144057a1b68752d8fa324f1a211afc2231328be82d17f9308979.exe -
Drops file in Windows directory 2 IoCs
Processes:
794ba0b949b2144057a1b68752d8fa324f1a211afc2231328be82d17f9308979.exedescription ioc process File created C:\Windows\sysklnorbcv.exe 794ba0b949b2144057a1b68752d8fa324f1a211afc2231328be82d17f9308979.exe File opened for modification C:\Windows\sysklnorbcv.exe 794ba0b949b2144057a1b68752d8fa324f1a211afc2231328be82d17f9308979.exe -
Launches sc.exe 6 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exesc.exesc.exesc.exesc.exesc.exepid process 1504 sc.exe 3420 sc.exe 220 sc.exe 932 sc.exe 64 sc.exe 3708 sc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 10 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
794ba0b949b2144057a1b68752d8fa324f1a211afc2231328be82d17f9308979.exesysklnorbcv.execmd.exesc.exesc.execmd.exesc.exepowershell.exesc.exesc.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 794ba0b949b2144057a1b68752d8fa324f1a211afc2231328be82d17f9308979.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sysklnorbcv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 3684 powershell.exe 3684 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 3684 powershell.exe -
Suspicious use of WriteProcessMemory 27 IoCs
Processes:
794ba0b949b2144057a1b68752d8fa324f1a211afc2231328be82d17f9308979.exesysklnorbcv.execmd.execmd.exedescription pid process target process PID 2912 wrote to memory of 3248 2912 794ba0b949b2144057a1b68752d8fa324f1a211afc2231328be82d17f9308979.exe sysklnorbcv.exe PID 2912 wrote to memory of 3248 2912 794ba0b949b2144057a1b68752d8fa324f1a211afc2231328be82d17f9308979.exe sysklnorbcv.exe PID 2912 wrote to memory of 3248 2912 794ba0b949b2144057a1b68752d8fa324f1a211afc2231328be82d17f9308979.exe sysklnorbcv.exe PID 3248 wrote to memory of 2036 3248 sysklnorbcv.exe cmd.exe PID 3248 wrote to memory of 2036 3248 sysklnorbcv.exe cmd.exe PID 3248 wrote to memory of 2036 3248 sysklnorbcv.exe cmd.exe PID 3248 wrote to memory of 4428 3248 sysklnorbcv.exe cmd.exe PID 3248 wrote to memory of 4428 3248 sysklnorbcv.exe cmd.exe PID 3248 wrote to memory of 4428 3248 sysklnorbcv.exe cmd.exe PID 4428 wrote to memory of 1504 4428 cmd.exe sc.exe PID 4428 wrote to memory of 1504 4428 cmd.exe sc.exe PID 4428 wrote to memory of 1504 4428 cmd.exe sc.exe PID 2036 wrote to memory of 3684 2036 cmd.exe powershell.exe PID 2036 wrote to memory of 3684 2036 cmd.exe powershell.exe PID 2036 wrote to memory of 3684 2036 cmd.exe powershell.exe PID 4428 wrote to memory of 3420 4428 cmd.exe sc.exe PID 4428 wrote to memory of 3420 4428 cmd.exe sc.exe PID 4428 wrote to memory of 3420 4428 cmd.exe sc.exe PID 4428 wrote to memory of 220 4428 cmd.exe sc.exe PID 4428 wrote to memory of 220 4428 cmd.exe sc.exe PID 4428 wrote to memory of 220 4428 cmd.exe sc.exe PID 4428 wrote to memory of 932 4428 cmd.exe sc.exe PID 4428 wrote to memory of 932 4428 cmd.exe sc.exe PID 4428 wrote to memory of 932 4428 cmd.exe sc.exe PID 4428 wrote to memory of 64 4428 cmd.exe sc.exe PID 4428 wrote to memory of 64 4428 cmd.exe sc.exe PID 4428 wrote to memory of 64 4428 cmd.exe sc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\794ba0b949b2144057a1b68752d8fa324f1a211afc2231328be82d17f9308979.exe"C:\Users\Admin\AppData\Local\Temp\794ba0b949b2144057a1b68752d8fa324f1a211afc2231328be82d17f9308979.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2912 -
C:\Windows\sysklnorbcv.exeC:\Windows\sysklnorbcv.exe2⤵
- Modifies security service
- Windows security bypass
- Checks computer location settings
- Executes dropped EXE
- Windows security modification
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3248 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c powershell -Command "Add-MpPreference -ExclusionPath $env:windir; Add-MpPreference -ExclusionPath $env:TEMP; Add-MpPreference -ExclusionPath $env:USERPROFILE"3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2036 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -Command "Add-MpPreference -ExclusionPath $env:windir; Add-MpPreference -ExclusionPath $env:TEMP; Add-MpPreference -ExclusionPath $env:USERPROFILE"4⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3684 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c sc stop UsoSvc & sc stop WaaSMedicSvc & sc stop wuauserv & sc stop DoSvc & sc stop BITS3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4428 -
C:\Windows\SysWOW64\sc.exesc stop UsoSvc4⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:1504 -
C:\Windows\SysWOW64\sc.exesc stop WaaSMedicSvc4⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:3420 -
C:\Windows\SysWOW64\sc.exesc stop wuauserv4⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:220 -
C:\Windows\SysWOW64\sc.exesc stop DoSvc4⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:932 -
C:\Windows\SysWOW64\sc.exesc stop BITS4⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:64
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4300,i,12198811467968044966,17227406646827438786,262144 --variations-seed-version --mojo-platform-channel-handle=4076 /prefetch:81⤵PID:2540
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C:\Windows\system32\sc.exeC:\Windows\system32\sc.exe start wuauserv1⤵
- Launches sc.exe
PID:3708
Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1System Services
1Service Execution
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Replay Monitor
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Downloads
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Filesize
100KB
MD5b37046319a495742af2d1d9e5ccc0ea9
SHA1d13ca92d5a17068773a58d167af40b77813be532
SHA2567c60a0bab1d7581bbba576b709837ef75a5c0833acb584bca3f7c780e70f6c14
SHA5125e7ad4b7d55f0d5e4c7a17cabccc54d9568cf4b98a8e0566607f253e238d090e111e5f6f44b23617e9d1a9fc2370a10fa761cbe50a9d17a182da31dcd8ad2b48
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
84KB
MD5a775d164cf76e9a9ff6afd7eb1e3ab2e
SHA10b390cd5a44a64296b592360b6b74ac66fb26026
SHA256794ba0b949b2144057a1b68752d8fa324f1a211afc2231328be82d17f9308979
SHA51280b2d105d2fac2e56b7ea9e1b56057e94ffe594c314ea96668d387ab120b24be580c58d68d37aca07273d3ce80f0d74f072102469f35cb02e2295817e1f16808