Analysis
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max time kernel
600s -
max time network
601s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
17-09-2024 18:26
Static task
static1
Behavioral task
behavioral1
Sample
Win32.Wannacry.dll
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
Win32.Wannacry.dll
Resource
win10-20240404-en
Behavioral task
behavioral3
Sample
Win32.Wannacry.dll
Resource
win10v2004-20240802-en
General
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Target
Win32.Wannacry.dll
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Size
5.0MB
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MD5
30fe2f9a048d7a734c8d9233f64810ba
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SHA1
2027a053de21bd5c783c3f823ed1d36966780ed4
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SHA256
55504677f82981962d85495231695d3a92aa0b31ec35a957bd9cbbef618658e3
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SHA512
b657b02506f768db3255293b0c86452b4dfdd30804629c323aaa9510a3b637b0906e5963179ef7d4aaedc14646f2be2b4292e6584a6c55c6ddb596cff7f20e2a
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SSDEEP
49152:SnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9:+DqPoBhz1aRxcSUDk36SAEdhvxWa9
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (15345) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
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Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
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Executes dropped EXE 3 IoCs
pid Process 2524 mssecsvc.exe 2828 mssecsvc.exe 1632 tasksche.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat mssecsvc.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\WINDOWS\mssecsvc.exe rundll32.exe File created C:\WINDOWS\tasksche.exe mssecsvc.exe -
System Location Discovery: System Language Discovery 1 TTPs 3 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 mssecsvc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language mssecsvc.exe -
Modifies data under HKEY_USERS 24 IoCs
description ioc Process Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\de-3c-ab-3a-3a-ae\WpadDecisionTime = 10373e3d2f09db01 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\de-3c-ab-3a-3a-ae mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6BACC344-4DFD-4C51-98A1-AC318DE7B9AE} mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6BACC344-4DFD-4C51-98A1-AC318DE7B9AE}\WpadDecisionReason = "1" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\de-3c-ab-3a-3a-ae\WpadDecisionReason = "1" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6BACC344-4DFD-4C51-98A1-AC318DE7B9AE}\WpadDecisionTime = 10373e3d2f09db01 mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6BACC344-4DFD-4C51-98A1-AC318DE7B9AE}\WpadNetworkName = "Network 3" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6BACC344-4DFD-4C51-98A1-AC318DE7B9AE}\de-3c-ab-3a-3a-ae mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00f6000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6BACC344-4DFD-4C51-98A1-AC318DE7B9AE}\WpadDecision = "0" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\de-3c-ab-3a-3a-ae\WpadDecision = "0" mssecsvc.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2420 wrote to memory of 840 2420 rundll32.exe 30 PID 2420 wrote to memory of 840 2420 rundll32.exe 30 PID 2420 wrote to memory of 840 2420 rundll32.exe 30 PID 2420 wrote to memory of 840 2420 rundll32.exe 30 PID 2420 wrote to memory of 840 2420 rundll32.exe 30 PID 2420 wrote to memory of 840 2420 rundll32.exe 30 PID 2420 wrote to memory of 840 2420 rundll32.exe 30 PID 840 wrote to memory of 2524 840 rundll32.exe 31 PID 840 wrote to memory of 2524 840 rundll32.exe 31 PID 840 wrote to memory of 2524 840 rundll32.exe 31 PID 840 wrote to memory of 2524 840 rundll32.exe 31
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\Win32.Wannacry.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2420 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\Win32.Wannacry.dll,#12⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:840 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2524 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:1632
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C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe -m security1⤵
- Executes dropped EXE
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2828
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C:\Windows\explorer.exe"C:\Windows\explorer.exe"1⤵PID:1408
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.6MB
MD590a1e06d78737b9a87e8ea42f76e2544
SHA1785ddf8bd3add2da415cbc7c39aab7eb21407d20
SHA256e1bee0f7a7cd0ac8659033d9e67bfc83ae03843ed30dff8ca590f916604a6de7
SHA51240ee623eb975b3890d3e8260e76963d078a7734c040d4151fa0cf11fd6e2421f5ea609f67922a51c6df7a09f077087361586d5f40208bc97ee70531e2a3df5be
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Filesize
3.4MB
MD50df2ae526d7350c2e3d1383c07a6be04
SHA106c4d41c60736ea1e0bb1b095536499e05068442
SHA25610111f53da4181d548ea77cc91f02a15b9ede3f111f074230761f2afee7cd637
SHA5129ca1ca36dcefdb1eba3152bc2d14c9dceb3360960338d13db5f8a02327aef80cb0ab238c2c1f3d2dbd7fd75124d4199b5cd63f173a09a0dea212ebb265f8453d