Analysis
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max time kernel
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max time network
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platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
29-01-2025 16:41
Static task
static1
Behavioral task
behavioral1
Sample
InstalerSolaraV3.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
InstalerSolaraV3.exe
Resource
win10v2004-20250129-en
General
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Target
InstalerSolaraV3.exe
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Size
563KB
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MD5
993eca0c039917fa3c9011f11e0cd1f1
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SHA1
afda8fcd8e71a2b8f006898095d5a2b0295120a2
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SHA256
fe3e8ce5e79ee86048719533eb54cbbfeaab547d61afb0045a2f7a19619654c8
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SHA512
380c4adbcf62b03a8deb79ab9d0d39300ede6efd4f4d65bbee0c4109dfaf8800f91c59206897ca2a91d93f41e53f8f47dd30316db0cb7e39ac18d313d242c492
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SSDEEP
6144:BiXz3sg/Opdt8lYCWnsKe6VlWT8b9oO9zg08OIWfZs6/bEeAEDmxUZh:BiXzloyuP9PVle859oO9f4HEDrh
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\System32\\userinit.exe,C:\\Windows\\xdwdTrello Host.exe" InstalerSolaraV3.exe -
Ramnit family
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Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
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Executes dropped EXE 3 IoCs
pid Process 2124 dzgbk43w.4pg.exe 1780 DesktopLayer.exe 1136 f3jtssd1.p34.exe -
Loads dropped DLL 1 IoCs
pid Process 2124 dzgbk43w.4pg.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\xdwdfghfghfg = "C:\\Users\\Public\\Documents\\xdwdSpybot - Search & Destroy.exe" InstalerSolaraV3.exe -
pid Process 580 powershell.exe 2308 powershell.exe -
resource yara_rule behavioral1/files/0x0004000000004ed7-326.dat upx behavioral1/memory/2124-328-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/memory/1780-337-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/memory/2124-335-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/memory/1780-341-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe dzgbk43w.4pg.exe File opened for modification C:\Program Files (x86)\Microsoft\px256B.tmp dzgbk43w.4pg.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe dzgbk43w.4pg.exe -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\xdwd.dll InstalerSolaraV3.exe File created C:\Windows\xdwdTrello Host.exe InstalerSolaraV3.exe File opened for modification C:\Windows\xdwdTrello Host.exe InstalerSolaraV3.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 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language DesktopLayer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f3jtssd1.p34.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language dzgbk43w.4pg.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{03396B01-DE60-11EF-8CE5-7A300BFEC721} = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\MINIE iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2848 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 26 IoCs
pid Process 2832 InstalerSolaraV3.exe 2832 InstalerSolaraV3.exe 2832 InstalerSolaraV3.exe 2832 InstalerSolaraV3.exe 2832 InstalerSolaraV3.exe 2832 InstalerSolaraV3.exe 2832 InstalerSolaraV3.exe 2832 InstalerSolaraV3.exe 2832 InstalerSolaraV3.exe 2832 InstalerSolaraV3.exe 1184 WmiApSrv.exe 2900 cmd.exe 580 powershell.exe 580 powershell.exe 580 powershell.exe 580 powershell.exe 1780 DesktopLayer.exe 1780 DesktopLayer.exe 1780 DesktopLayer.exe 1780 DesktopLayer.exe 1540 iexplore.exe 2016 cmd.exe 2308 powershell.exe 2308 powershell.exe 2308 powershell.exe 2308 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2832 InstalerSolaraV3.exe Token: SeDebugPrivilege 580 powershell.exe Token: SeDebugPrivilege 2308 powershell.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1540 iexplore.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
pid Process 1540 iexplore.exe 1540 iexplore.exe 2572 IEXPLORE.EXE 2572 IEXPLORE.EXE 1136 f3jtssd1.p34.exe -
Suspicious use of WriteProcessMemory 38 IoCs
description pid Process procid_target PID 2832 wrote to memory of 2568 2832 InstalerSolaraV3.exe 31 PID 2832 wrote to memory of 2568 2832 InstalerSolaraV3.exe 31 PID 2832 wrote to memory of 2568 2832 InstalerSolaraV3.exe 31 PID 2568 wrote to memory of 2848 2568 CMD.exe 33 PID 2568 wrote to memory of 2848 2568 CMD.exe 33 PID 2568 wrote to memory of 2848 2568 CMD.exe 33 PID 2832 wrote to memory of 2900 2832 InstalerSolaraV3.exe 36 PID 2832 wrote to memory of 2900 2832 InstalerSolaraV3.exe 36 PID 2832 wrote to memory of 2900 2832 InstalerSolaraV3.exe 36 PID 2900 wrote to memory of 580 2900 cmd.exe 38 PID 2900 wrote to memory of 580 2900 cmd.exe 38 PID 2900 wrote to memory of 580 2900 cmd.exe 38 PID 580 wrote to memory of 2124 580 powershell.exe 39 PID 580 wrote to memory of 2124 580 powershell.exe 39 PID 580 wrote to memory of 2124 580 powershell.exe 39 PID 580 wrote to memory of 2124 580 powershell.exe 39 PID 2124 wrote to memory of 1780 2124 dzgbk43w.4pg.exe 40 PID 2124 wrote to memory of 1780 2124 dzgbk43w.4pg.exe 40 PID 2124 wrote to memory of 1780 2124 dzgbk43w.4pg.exe 40 PID 2124 wrote to memory of 1780 2124 dzgbk43w.4pg.exe 40 PID 1780 wrote to memory of 1540 1780 DesktopLayer.exe 41 PID 1780 wrote to memory of 1540 1780 DesktopLayer.exe 41 PID 1780 wrote to memory of 1540 1780 DesktopLayer.exe 41 PID 1780 wrote to memory of 1540 1780 DesktopLayer.exe 41 PID 1540 wrote to memory of 2572 1540 iexplore.exe 42 PID 1540 wrote to memory of 2572 1540 iexplore.exe 42 PID 1540 wrote to memory of 2572 1540 iexplore.exe 42 PID 1540 wrote to memory of 2572 1540 iexplore.exe 42 PID 2832 wrote to memory of 2016 2832 InstalerSolaraV3.exe 43 PID 2832 wrote to memory of 2016 2832 InstalerSolaraV3.exe 43 PID 2832 wrote to memory of 2016 2832 InstalerSolaraV3.exe 43 PID 2016 wrote to memory of 2308 2016 cmd.exe 45 PID 2016 wrote to memory of 2308 2016 cmd.exe 45 PID 2016 wrote to memory of 2308 2016 cmd.exe 45 PID 2308 wrote to memory of 1136 2308 powershell.exe 46 PID 2308 wrote to memory of 1136 2308 powershell.exe 46 PID 2308 wrote to memory of 1136 2308 powershell.exe 46 PID 2308 wrote to memory of 1136 2308 powershell.exe 46 -
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.
Processes
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C:\Users\Admin\AppData\Local\Temp\InstalerSolaraV3.exe"C:\Users\Admin\AppData\Local\Temp\InstalerSolaraV3.exe"1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2832 -
C:\Windows\system32\CMD.exe"CMD" /C SchTaSKs /CrEAte /F /sc OnLoGoN /rl HighEst /tn "Microsoft Publisher" /tr "C:\Windows\xdwdTrello Host.exe" & exit2⤵
- Suspicious use of WriteProcessMemory
PID:2568 -
C:\Windows\system32\schtasks.exeSchTaSKs /CrEAte /F /sc OnLoGoN /rl HighEst /tn "Microsoft Publisher" /tr "C:\Windows\xdwdTrello Host.exe"3⤵
- Scheduled Task/Job: Scheduled Task
PID:2848
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c start /b powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\dzgbk43w.4pg.exe"' & exit2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2900 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\dzgbk43w.4pg.exe"'3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:580 -
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\dzgbk43w.4pg.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\dzgbk43w.4pg.exe"4⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2124 -
C:\Program Files (x86)\Microsoft\DesktopLayer.exe"C:\Program Files (x86)\Microsoft\DesktopLayer.exe"5⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1780 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"6⤵
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1540 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1540 CREDAT:275457 /prefetch:27⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:2572
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c start /b powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\f3jtssd1.p34.exe"' & exit2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2016 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\f3jtssd1.p34.exe"'3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2308 -
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\f3jtssd1.p34.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\f3jtssd1.p34.exe"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:1136
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C:\Windows\system32\wbem\WmiApSrv.exeC:\Windows\system32\wbem\WmiApSrv.exe1⤵
- Suspicious behavior: EnumeratesProcesses
PID:1184
Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Event Triggered Execution
1AppInit DLLs
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Event Triggered Execution
1AppInit DLLs
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
Filesize7KB
MD5ca0b99aad7d9986850cb4dab4b4616e5
SHA1443944a85e2fa7fede79cbd6b55da2f8c7e7e125
SHA25685a536d3333c21b31f49610dc2e898710669bea2b0a60a2a52ffaa24bb0ba361
SHA512ddd4481034d70a316ef9932b3208645ec37f86610f6aa026c92a4c674dcc321b0c204f87a877e716f415be9f768fe16315a61d822af56b6c849ca707eb07e266
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Filesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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Filesize
96KB
MD5cd38fd90db01965feb7449560c1d98ca
SHA17b035d3f601e3666e4c8d7ab5511b5c304b47bdb
SHA25677e33de667bd87361ec077b281d803cc2eee463fd5d804bb779b5dfabd1dc1ff
SHA512addd2fdbff3e7c4b5b4500d4d550132d294acc9925f51d7c9761e7d2765e99cb1265f361a9c188ee8b1a59bc4d628fae199b595aba00c5153c5b317eae267d50
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Filesize
136KB
MD516e5a492c9c6ae34c59683be9c51fa31
SHA197031b41f5c56f371c28ae0d62a2df7d585adaba
SHA25635c8d022e1d917f1aabdceae98097ccc072161b302f84c768ca63e4b32ac2b66
SHA51220fd369172ef5e3e2fde388666b42e8fe5f0c2bfa338c0345f45e98af6561a249ba3ecc48c3f16efcc73f02ecb67b3ddb1e2e8f0e77d18fa00ac34e6379e50b6