Analysis
-
max time kernel
128s -
max time network
129s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
07-02-2022 03:45
Static task
static1
Behavioral task
behavioral1
Sample
1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0.exe
Resource
win7-en-20211208
General
-
Target
1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0.exe
-
Size
125KB
-
MD5
8b0a529a292b70ff3bffa0c7dc53ce51
-
SHA1
554fae342d553049a4b70894d4f29ecc471db321
-
SHA256
1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0
-
SHA512
dd03ab7d09f985f13149f375c7d3990f61ab9b47efead4691fe22ccdf4b0ffd9902faa8f90ab58c2bb903d8a481e7343ad7da066b825467d9eb606f45635b215
Malware Config
Signatures
-
Executes dropped EXE 2 IoCs
Processes:
1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0Srv.exeDesktopLayer.exepid process 2004 1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0Srv.exe 1684 DesktopLayer.exe -
Processes:
resource yara_rule \Users\Admin\AppData\Local\Temp\1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0Srv.exe upx C:\Users\Admin\AppData\Local\Temp\1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0Srv.exe upx C:\Users\Admin\AppData\Local\Temp\1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0Srv.exe upx \Program Files (x86)\Microsoft\DesktopLayer.exe upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx behavioral1/memory/2004-62-0x0000000000400000-0x000000000042E000-memory.dmp upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx behavioral1/memory/1684-68-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Loads dropped DLL 2 IoCs
Processes:
1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0.exe1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0Srv.exepid process 2020 1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0.exe 2004 1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0Srv.exe -
Drops file in Program Files directory 5 IoCs
Processes:
1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0Srv.exeattrib.exeattrib.exedescription ioc process File opened for modification C:\Program Files (x86)\Microsoft\pxB07.tmp 1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0Srv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe 1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0Srv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe 1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0Srv.exe File opened for modification C:\Program Files\HomeSafe attrib.exe File opened for modification C:\Program Files (x86)\HomeSafe attrib.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Processes:
iexplore.exeIEXPLORE.EXEdescription ioc process Key created \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{ECC9BC50-87D0-11EC-B904-C2BDF263E411} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "350974182" iexplore.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
DesktopLayer.exepid process 1684 DesktopLayer.exe 1684 DesktopLayer.exe 1684 DesktopLayer.exe 1684 DesktopLayer.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
powercfg.exedescription pid process Token: SeShutdownPrivilege 1300 powercfg.exe Token: SeShutdownPrivilege 1300 powercfg.exe Token: SeShutdownPrivilege 1300 powercfg.exe Token: SeShutdownPrivilege 1300 powercfg.exe Token: SeShutdownPrivilege 1300 powercfg.exe Token: SeCreatePagefilePrivilege 1300 powercfg.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 868 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
iexplore.exeIEXPLORE.EXEpid process 868 iexplore.exe 868 iexplore.exe 1536 IEXPLORE.EXE 1536 IEXPLORE.EXE 1536 IEXPLORE.EXE 1536 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 35 IoCs
Processes:
1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0.exe1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0Srv.execmd.exeDesktopLayer.exeiexplore.exedescription pid process target process PID 2020 wrote to memory of 2004 2020 1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0.exe 1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0Srv.exe PID 2020 wrote to memory of 2004 2020 1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0.exe 1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0Srv.exe PID 2020 wrote to memory of 2004 2020 1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0.exe 1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0Srv.exe PID 2020 wrote to memory of 2004 2020 1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0.exe 1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0Srv.exe PID 2020 wrote to memory of 604 2020 1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0.exe cmd.exe PID 2020 wrote to memory of 604 2020 1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0.exe cmd.exe PID 2020 wrote to memory of 604 2020 1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0.exe cmd.exe PID 2020 wrote to memory of 604 2020 1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0.exe cmd.exe PID 2004 wrote to memory of 1684 2004 1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0Srv.exe DesktopLayer.exe PID 2004 wrote to memory of 1684 2004 1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0Srv.exe DesktopLayer.exe PID 2004 wrote to memory of 1684 2004 1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0Srv.exe DesktopLayer.exe PID 2004 wrote to memory of 1684 2004 1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0Srv.exe DesktopLayer.exe PID 604 wrote to memory of 1300 604 cmd.exe powercfg.exe PID 604 wrote to memory of 1300 604 cmd.exe powercfg.exe PID 604 wrote to memory of 1300 604 cmd.exe powercfg.exe PID 1684 wrote to memory of 868 1684 DesktopLayer.exe iexplore.exe PID 1684 wrote to memory of 868 1684 DesktopLayer.exe iexplore.exe PID 1684 wrote to memory of 868 1684 DesktopLayer.exe iexplore.exe PID 1684 wrote to memory of 868 1684 DesktopLayer.exe iexplore.exe PID 604 wrote to memory of 1632 604 cmd.exe attrib.exe PID 604 wrote to memory of 1632 604 cmd.exe attrib.exe PID 604 wrote to memory of 1632 604 cmd.exe attrib.exe PID 604 wrote to memory of 2032 604 cmd.exe cacls.exe PID 604 wrote to memory of 2032 604 cmd.exe cacls.exe PID 604 wrote to memory of 2032 604 cmd.exe cacls.exe PID 604 wrote to memory of 648 604 cmd.exe attrib.exe PID 604 wrote to memory of 648 604 cmd.exe attrib.exe PID 604 wrote to memory of 648 604 cmd.exe attrib.exe PID 604 wrote to memory of 268 604 cmd.exe cacls.exe PID 604 wrote to memory of 268 604 cmd.exe cacls.exe PID 604 wrote to memory of 268 604 cmd.exe cacls.exe PID 868 wrote to memory of 1536 868 iexplore.exe IEXPLORE.EXE PID 868 wrote to memory of 1536 868 iexplore.exe IEXPLORE.EXE PID 868 wrote to memory of 1536 868 iexplore.exe IEXPLORE.EXE PID 868 wrote to memory of 1536 868 iexplore.exe IEXPLORE.EXE -
Views/modifies file attributes 1 TTPs 2 IoCs
Processes:
attrib.exeattrib.exepid process 1632 attrib.exe 648 attrib.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0.exe"C:\Users\Admin\AppData\Local\Temp\1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2020 -
C:\Users\Admin\AppData\Local\Temp\1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0Srv.exeC:\Users\Admin\AppData\Local\Temp\1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0Srv.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2004 -
C:\Program Files (x86)\Microsoft\DesktopLayer.exe"C:\Program Files (x86)\Microsoft\DesktopLayer.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1684 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"4⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:868 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:868 CREDAT:275457 /prefetch:25⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1536
-
-
-
-
-
C:\Windows\system32\cmd.exe"C:\Windows\sysnative\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\AAA.tmp\AAB.bat C:\Users\Admin\AppData\Local\Temp\1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:604 -
C:\Windows\system32\powercfg.exepowercfg -h off3⤵
- Suspicious use of AdjustPrivilegeToken
PID:1300
-
-
C:\Windows\system32\attrib.exeattrib +s +h C:\"Program Files"\HomeSafe3⤵
- Drops file in Program Files directory
- Views/modifies file attributes
PID:1632
-
-
C:\Windows\system32\cacls.exeCacls "C:\Program Files\HomeSafe" /e /p Administrator:n3⤵PID:2032
-
-
C:\Windows\system32\attrib.exeattrib +s +h C:\"Program Files (x86)"\HomeSafe3⤵
- Drops file in Program Files directory
- Views/modifies file attributes
PID:648
-
-
C:\Windows\system32\cacls.exeCacls "C:\Program Files (x86)\HomeSafe" /e /p Administrator:n3⤵PID:268
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
MD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
-
MD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
-
C:\Users\Admin\AppData\Local\Temp\1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0Srv.exe
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
-
C:\Users\Admin\AppData\Local\Temp\1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0Srv.exe
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
-
MD5
ab2f0296eb417da48f43bb6b28036795
SHA1111e9f1b5b4a9c0af1359052312742dfc5181d96
SHA25663c8ac6f3ccf5c80cb2c2e6a249e2bcb38e75b3c99a9b731499d8b39c803132f
SHA512b4963dbb9969648647de878de46e3fc0b2bbb8a678b20d05d982ba1405f477642f142a8396ed31c588403065671210db96f72a8d86d1ebf6f53261c10b24a232
-
MD5
9713a5ec45e378134e33e21feca0c12b
SHA19ad6512eb89ff2dca734dcb223a945932d2caf57
SHA256a83038596a27ced8418c2e3248deaea9bfcecafd0359af0ed2e3cb372bd26575
SHA51206d0b012dfd48495b0613e2eb0d19d59e28ae7b46508fd9674d05661c96ab4311d69949bf104c4289d9fa9c5fdc2e075fb2c7bfd71468ec1a88e4ba75c5d9f13
-
MD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
-
\Users\Admin\AppData\Local\Temp\1243c8bfdfe91e45a03aaef3883b4d51cb8d0d2d94eb56c638f71ddb9ceb4ed0Srv.exe
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a