Analysis
-
max time kernel
179s -
max time network
192s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
23-11-2022 21:30
Static task
static1
Behavioral task
behavioral1
Sample
351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exe
Resource
win7-20221111-en
General
-
Target
351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exe
-
Size
8.7MB
-
MD5
7d3973c408220ed7d52ae4e499b100e2
-
SHA1
376946e12efb2d88f012d9514c38fa4cc58ddf6d
-
SHA256
351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a
-
SHA512
e8ca596bd93645ebf0508e9f95f58e5425825918c86a4521dd9b3a92777a7ea1eb90b9abaa0e0f65be4cf3e3e2edf9be67e87274155ae0560be06893aa98271b
-
SSDEEP
196608:uxP/mHRnJcqAkcJSSNHUq9A514hssZi14WNHMdzegViWnhnjnl8le:UP/iAqAHJZNfS5yFVWdczqWhjj
Malware Config
Signatures
-
Executes dropped EXE 2 IoCs
Processes:
351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exeDesktopLayer.exepid process 2684 351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe 1312 DesktopLayer.exe -
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe upx C:\Users\Admin\AppData\Local\Temp\351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx behavioral2/memory/2684-140-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/1312-141-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Loads dropped DLL 4 IoCs
Processes:
351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exepid process 1180 351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exe 1180 351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exe 1180 351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exe 1180 351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exe -
Drops file in Program Files directory 3 IoCs
Processes:
351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exedescription ioc process File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe 351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe 351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe File opened for modification C:\Program Files (x86)\Microsoft\px1E4.tmp 351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.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-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2604061861" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "375415376" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2604061861" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{BBB0EE7C-6B97-11ED-BF5F-DA2886E4F8F0} = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30998436" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30998436" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
DesktopLayer.exepid process 1312 DesktopLayer.exe 1312 DesktopLayer.exe 1312 DesktopLayer.exe 1312 DesktopLayer.exe 1312 DesktopLayer.exe 1312 DesktopLayer.exe 1312 DesktopLayer.exe 1312 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 776 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
iexplore.exeIEXPLORE.EXEpid process 776 iexplore.exe 776 iexplore.exe 3964 IEXPLORE.EXE 3964 IEXPLORE.EXE 3964 IEXPLORE.EXE 3964 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exe351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exeDesktopLayer.exeiexplore.exedescription pid process target process PID 1180 wrote to memory of 2684 1180 351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exe 351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe PID 1180 wrote to memory of 2684 1180 351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exe 351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe PID 1180 wrote to memory of 2684 1180 351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exe 351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe PID 2684 wrote to memory of 1312 2684 351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe DesktopLayer.exe PID 2684 wrote to memory of 1312 2684 351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe DesktopLayer.exe PID 2684 wrote to memory of 1312 2684 351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe DesktopLayer.exe PID 1312 wrote to memory of 776 1312 DesktopLayer.exe iexplore.exe PID 1312 wrote to memory of 776 1312 DesktopLayer.exe iexplore.exe PID 776 wrote to memory of 3964 776 iexplore.exe IEXPLORE.EXE PID 776 wrote to memory of 3964 776 iexplore.exe IEXPLORE.EXE PID 776 wrote to memory of 3964 776 iexplore.exe IEXPLORE.EXE
Processes
-
C:\Users\Admin\AppData\Local\Temp\351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exe"C:\Users\Admin\AppData\Local\Temp\351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1180 -
C:\Users\Admin\AppData\Local\Temp\351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exeC:\Users\Admin\AppData\Local\Temp\351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2684 -
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:1312 -
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:776 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:776 CREDAT:17410 /prefetch:25⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:3964
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
-
Filesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
-
C:\Users\Admin\AppData\Local\Temp\351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe
Filesize55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
-
C:\Users\Admin\AppData\Local\Temp\351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe
Filesize55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
-
Filesize
7KB
MD5dd85ac7d85c92dd0e3cc17dfd4890f54
SHA1a128fb7a05965c1a9913c6f5e419e6c4c0a7d2fa
SHA25627abd2a4fb1bf66add60221b52d061bbe24d2d21e13600725ff7a5c6c777b504
SHA512e4ff8216c65110a9d156f37c2062acb53a72daa8af12dfc24278920d9e1a4083a81b1446759df75405b2da34c7bfb1afc33184feedd0aee4ed73f79fcbb1a8a1
-
Filesize
7KB
MD5dd85ac7d85c92dd0e3cc17dfd4890f54
SHA1a128fb7a05965c1a9913c6f5e419e6c4c0a7d2fa
SHA25627abd2a4fb1bf66add60221b52d061bbe24d2d21e13600725ff7a5c6c777b504
SHA512e4ff8216c65110a9d156f37c2062acb53a72daa8af12dfc24278920d9e1a4083a81b1446759df75405b2da34c7bfb1afc33184feedd0aee4ed73f79fcbb1a8a1
-
Filesize
67KB
MD530b81ec5e3c42d640a41142d77d6b9dd
SHA1e80da338f190d6cf58ebcfb3c33902bcc625803e
SHA25601ed4a6c53f05fcd583f9c5afc11022143edb99417d842b8bf5e95b7e74fdf13
SHA512fb638df4e85dcb83118f8a422196ac9d6d4b31650864c27ebc6e820ba0106152fddaecd213206784f7d14a6963e80465d9dca0a224e1bc895a48fc7ddef0935b
-
Filesize
67KB
MD530b81ec5e3c42d640a41142d77d6b9dd
SHA1e80da338f190d6cf58ebcfb3c33902bcc625803e
SHA25601ed4a6c53f05fcd583f9c5afc11022143edb99417d842b8bf5e95b7e74fdf13
SHA512fb638df4e85dcb83118f8a422196ac9d6d4b31650864c27ebc6e820ba0106152fddaecd213206784f7d14a6963e80465d9dca0a224e1bc895a48fc7ddef0935b