Analysis
- max time kernel
454s - max time network
460s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
25/03/2024, 16:24
General
- Target ce223b231f2862124386c585e9b95ca1.dll
- Size 5.0MB
- Sample240325-twmx2sfe7x
- SHA256 92bc02116a72b13d359ba88e0984ea09d2eb230fbf711d92a0c961e08274a09e
Malware Config
Signatures
- Wannacry
WannaCry is a ransomware cryptoworm.
- Contacts a large (11897) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
- Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
- Executes dropped EXE 3 IoCs
- Drops file in System32 directory 2 IoCs
- Drops file in Windows directory 3 IoCs
- Modifies data under HKEY_USERS 5 IoCs
- Suspicious behavior: GetForegroundWindowSpam 2 IoCs
- Suspicious use of AdjustPrivilegeToken 64 IoCs
- Suspicious use of SetWindowsHookEx 4 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\ce223b231f2862124386c585e9b95ca1.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\ce223b231f2862124386c585e9b95ca1.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
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C:\WINDOWS\mssecsvr.exeC:\WINDOWS\mssecsvr.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
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C:\WINDOWS\mssecsvr.exeC:\WINDOWS\mssecsvr.exe -m security1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
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C:\Windows\system32\mmc.exe"C:\Windows\system32\mmc.exe" "C:\Windows\system32\eventvwr.msc" /s1⤵
- Drops file in System32 directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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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 --no-appcompat-clear --mojo-platform-channel-handle=4132 --field-trial-handle=2588,i,4353937220825226770,7138584070663735671,262144 --variations-seed-version /prefetch:81⤵
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵
-
C:\Windows\mssecsvr.exe"C:\Windows\mssecsvr.exe"1⤵
- Executes dropped EXE
- Drops file in Windows directory
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C:\Windows\system32\mmc.exe"C:\Windows\system32\mmc.exe" "C:\Windows\system32\eventvwr.msc" /s1⤵
- Drops file in System32 directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Channel_0.xml
mmc.exe.log
RecentViews
Settings.Xml
eventvwr
mssecsvr.exe
memory/1456-13-0x000000001D2C0000-0x000000001D2D0000-memory.dmp
memory/1456-6-0x000000001D2C0000-0x000000001D2D0000-memory.dmp
memory/1456-12-0x000000001D2C0000-0x000000001D2D0000-memory.dmp
memory/1456-10-0x00007FFEA7E10000-0x00007FFEA88D1000-memory.dmp
memory/1456-14-0x000000001D2C0000-0x000000001D2D0000-memory.dmp
memory/1456-15-0x00007FF49C060000-0x00007FF49C070000-memory.dmp
memory/1456-16-0x0000000020370000-0x0000000020898000-memory.dmp
memory/1456-17-0x000000001D2C0000-0x000000001D2D0000-memory.dmp
memory/1456-18-0x000000001D2C0000-0x000000001D2D0000-memory.dmp
memory/1456-19-0x000000001D2C0000-0x000000001D2D0000-memory.dmp
memory/1456-20-0x000000001FE40000-0x000000001FF40000-memory.dmp
memory/1456-29-0x00007FFEA7E10000-0x00007FFEA88D1000-memory.dmp
memory/1456-8-0x000000001D2C0000-0x000000001D2D0000-memory.dmp
memory/1456-9-0x00007FF49C060000-0x00007FF49C070000-memory.dmp
memory/1456-5-0x00007FFEA7E10000-0x00007FFEA88D1000-memory.dmp
memory/1456-11-0x000000001D2C0000-0x000000001D2D0000-memory.dmp
memory/1456-7-0x000000001D2C0000-0x000000001D2D0000-memory.dmp
memory/3512-42-0x00007FFEA7CC0000-0x00007FFEA8781000-memory.dmp
memory/3512-46-0x0000000002DB0000-0x0000000002DC0000-memory.dmp
memory/3512-38-0x0000000002DB0000-0x0000000002DC0000-memory.dmp
memory/3512-39-0x0000000002DB0000-0x0000000002DC0000-memory.dmp
memory/3512-40-0x0000000002DB0000-0x0000000002DC0000-memory.dmp
memory/3512-34-0x0000000002DB0000-0x0000000002DC0000-memory.dmp
memory/3512-37-0x0000000002DB0000-0x0000000002DC0000-memory.dmp
memory/3512-33-0x00007FFEA7CC0000-0x00007FFEA8781000-memory.dmp
memory/3512-35-0x0000000002DB0000-0x0000000002DC0000-memory.dmp
memory/3512-45-0x0000000002DB0000-0x0000000002DC0000-memory.dmp
memory/3512-43-0x0000000002DB0000-0x0000000002DC0000-memory.dmp
memory/3512-47-0x0000000002DB0000-0x0000000002DC0000-memory.dmp
memory/3512-48-0x0000000002DB0000-0x0000000002DC0000-memory.dmp
memory/3512-49-0x0000000002DB0000-0x0000000002DC0000-memory.dmp
memory/3512-50-0x0000000002DB0000-0x0000000002DC0000-memory.dmp