Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240730-en -
resource tags
arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system -
submitted
01-08-2024 23:05
Static task
static1
Behavioral task
behavioral1
Sample
8215323ed464b7bfc7b9374580faa557_JaffaCakes118.dll
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
8215323ed464b7bfc7b9374580faa557_JaffaCakes118.dll
Resource
win10v2004-20240730-en
General
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Target
8215323ed464b7bfc7b9374580faa557_JaffaCakes118.dll
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Size
5.0MB
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MD5
8215323ed464b7bfc7b9374580faa557
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SHA1
c68300c4a8788c4a4c6d75a38a4b216fc2387c94
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SHA256
d540784d06bdc4b7d7bc8e7713bfb0bfa49f4a23b2461f82876320accdaf388e
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SHA512
bb834d49780efb74e6e78a45a61f10600d658deb344478a42c3abb38dfd522805831fd6981fab15294b0e27a0d578ca1ff000e4b65e547345c8694bb21d039aa
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SSDEEP
49152:RnFQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnv:1eqPoBhz1aRxcSUDk36SAEdhv
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (3229) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
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Executes dropped EXE 2 IoCs
pid Process 1900 mssecsvr.exe 4988 mssecsvr.exe -
Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
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Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 mssecsvr.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE mssecsvr.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies mssecsvr.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 mssecsvr.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\WINDOWS\mssecsvr.exe rundll32.exe File created C:\WINDOWS\tasksche.exe mssecsvr.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 rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language mssecsvr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language mssecsvr.exe -
Modifies data under HKEY_USERS 15 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P\History mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" mssecsvr.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion mssecsvr.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix mssecsvr.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3184 wrote to memory of 5036 3184 rundll32.exe 83 PID 3184 wrote to memory of 5036 3184 rundll32.exe 83 PID 3184 wrote to memory of 5036 3184 rundll32.exe 83 PID 5036 wrote to memory of 1900 5036 rundll32.exe 86 PID 5036 wrote to memory of 1900 5036 rundll32.exe 86 PID 5036 wrote to memory of 1900 5036 rundll32.exe 86
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\8215323ed464b7bfc7b9374580faa557_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3184 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\8215323ed464b7bfc7b9374580faa557_JaffaCakes118.dll,#12⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5036 -
C:\WINDOWS\mssecsvr.exeC:\WINDOWS\mssecsvr.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1900
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C:\WINDOWS\mssecsvr.exeC:\WINDOWS\mssecsvr.exe -m security1⤵
- Executes dropped EXE
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4988
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2.2MB
MD54742b4a4a89f939f0c50e16174c8acbe
SHA11917678533d940dee980dd89fc4bcd28291f991d
SHA256bdde8566cf4f844ddb27183587b0da1f7a6cf0ff241e6b34e509209fdf095476
SHA5125aa01a672731f85c1db54d357d3384554f639e51ba46ac829a1dd83857341fc5284d1c41cbb3bebcd09b6a0199b71a2c65564336d92bad06c20bfe239ba290b0