Analysis
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max time kernel
127s -
max time network
99s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
04-06-2022 15:03
Static task
static1
Behavioral task
behavioral1
Sample
0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exe
Resource
win10v2004-20220414-en
General
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Target
0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exe
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Size
600KB
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MD5
caf3575a95198ee925f2dfdeba2e78f3
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SHA1
2f267d5e2fb9d6ae818d5caa7f2fa508daf09d67
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SHA256
0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543
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SHA512
0b76001d9990a8163caaae9187294af58d87a91f02ebb2840fd373e850e4dc311f57340b16462ebe0da258e811be1dfc6af442f57c2b745e67d06a5c21c8a952
Malware Config
Signatures
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Locky
Ransomware strain released in 2016, with advanced features like anti-analysis.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies extensions of user files 2 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exedescription ioc process File opened for modification \??\c:\Users\Admin\Pictures\RemoveWrite.tiff 0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exe File opened for modification \??\c:\Users\Admin\Pictures\SearchWatch.tiff 0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exe -
Deletes itself 1 IoCs
Processes:
cmd.exepid process 952 cmd.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\asasin.bmp" 0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
Processes:
vssadmin.exepid process 1176 vssadmin.exe -
Modifies Control Panel 2 IoCs
Processes:
0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Control Panel\Desktop\WallpaperStyle = "0" 0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exe Set value (str) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Control Panel\Desktop\TileWallpaper = "0" 0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exe -
Processes:
iexplore.exeIEXPLORE.EXEdescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000004863fcdc101a3947b120786fa95ba35b0000000002000000000010660000000100002000000050f8728b901b3b8f85f7a2344d15a393db991c7efa62e048b2c8ad4cfb4f7778000000000e800000000200002000000059361122ca64a77d02a95c7ddce6c04826ff08785e3d8416d5dc46ae9ad3197d200000004d3612e99ff20b27df7ae212c515b08e2e9504f13bd1ca1e179bf8d4e6ee870640000000f4b48aadfb728732bb33e4e6bee4539bd86f263aef56b20d1eec531462d1bf75ca210603a2e3c499d747374e2d106a70f093cdc377c754a1d325501f948e9039 iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 608878e24b78d801 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{0CF1A3B1-E43F-11EC-B9BD-6AE9FCDE30C7} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe -
Suspicious use of AdjustPrivilegeToken 7 IoCs
Processes:
0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exevssvc.exedescription pid process Token: SeDebugPrivilege 784 0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exe Token: SeTakeOwnershipPrivilege 784 0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exe Token: SeBackupPrivilege 784 0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exe Token: SeRestorePrivilege 784 0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exe Token: SeBackupPrivilege 1620 vssvc.exe Token: SeRestorePrivilege 1620 vssvc.exe Token: SeAuditPrivilege 1620 vssvc.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
iexplore.exeDllHost.exepid process 740 iexplore.exe 1388 DllHost.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
Processes:
iexplore.exeIEXPLORE.EXEpid process 740 iexplore.exe 740 iexplore.exe 388 IEXPLORE.EXE 388 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
taskeng.exe0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exeiexplore.exedescription pid process target process PID 1680 wrote to memory of 1176 1680 taskeng.exe vssadmin.exe PID 1680 wrote to memory of 1176 1680 taskeng.exe vssadmin.exe PID 1680 wrote to memory of 1176 1680 taskeng.exe vssadmin.exe PID 784 wrote to memory of 740 784 0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exe iexplore.exe PID 784 wrote to memory of 740 784 0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exe iexplore.exe PID 784 wrote to memory of 740 784 0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exe iexplore.exe PID 784 wrote to memory of 740 784 0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exe iexplore.exe PID 740 wrote to memory of 388 740 iexplore.exe IEXPLORE.EXE PID 740 wrote to memory of 388 740 iexplore.exe IEXPLORE.EXE PID 740 wrote to memory of 388 740 iexplore.exe IEXPLORE.EXE PID 740 wrote to memory of 388 740 iexplore.exe IEXPLORE.EXE PID 784 wrote to memory of 952 784 0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exe cmd.exe PID 784 wrote to memory of 952 784 0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exe cmd.exe PID 784 wrote to memory of 952 784 0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exe cmd.exe PID 784 wrote to memory of 952 784 0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exe"C:\Users\Admin\AppData\Local\Temp\0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exe"1⤵
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\Desktop\asasin.htm2⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:740 CREDAT:275457 /prefetch:23⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
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C:\Windows\SysWOW64\cmd.execmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\0f9ca5c555ddf4b5b29573ea1a513a69555afcfd0b1d3fa8f441bc6991bce543.exe"2⤵
- Deletes itself
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\taskeng.exetaskeng.exe {3748C25E-FA74-433E-9CFC-A861D1A7441A} S-1-5-18:NT AUTHORITY\System:Service:1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exeC:\Windows\system32\vssadmin.exe Delete Shadows /Quiet /All2⤵
- Interacts with shadow copies
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}1⤵
- Suspicious use of FindShellTrayWindow
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\Desktop\asasin.bmpFilesize
3.4MB
MD50ddc774f2854358006eb601e938725ca
SHA1066491cca49707d8e8b4f380f89e1a3de0d9f810
SHA256019cdd375f1430192095f7f070f2e7905328afffd06a6d3830fd3caf978f83a7
SHA512fe95f5146d74510afcc5da4808678b6ef20ab6911ce1d69fd09bbc7fc424d0d810b2b6a27271559eb669e1a0ab2325cc3c08cbe5cac5f9dd6d47900dafbdbaf2
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C:\Users\Admin\Desktop\asasin.htmFilesize
8KB
MD502db92febc938b04e24567ede81f780b
SHA17080140da0508dc842994817cbadcca78301ea2e
SHA256183a89c96f8fc0cf377b673c7b792664e931c87b9ea7c64093841ee87b3737ea
SHA512c7e8557b0571e385d4200217e775972144537e9bce43d01704c83854da503dbc9188670a893713a454c0ec5dddbe6ca8f13594f3d0638396a6580e39d850863b
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memory/784-54-0x0000000000400000-0x0000000000498000-memory.dmpFilesize
608KB
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memory/784-55-0x0000000000400000-0x0000000000498000-memory.dmpFilesize
608KB
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memory/784-56-0x0000000000400000-0x0000000000498000-memory.dmpFilesize
608KB
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memory/784-57-0x0000000075701000-0x0000000075703000-memory.dmpFilesize
8KB
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memory/784-61-0x0000000000400000-0x0000000000498000-memory.dmpFilesize
608KB
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memory/952-60-0x0000000000000000-mapping.dmp
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memory/1176-58-0x0000000000000000-mapping.dmp