Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240704-en -
resource tags
arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system -
submitted
16-07-2024 01:57
Static task
static1
Behavioral task
behavioral1
Sample
4c58581fa08accc15994f3db1098a5bc_JaffaCakes118.dll
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
4c58581fa08accc15994f3db1098a5bc_JaffaCakes118.dll
Resource
win10v2004-20240704-en
General
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Target
4c58581fa08accc15994f3db1098a5bc_JaffaCakes118.dll
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Size
5.0MB
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MD5
4c58581fa08accc15994f3db1098a5bc
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SHA1
1a349b33c6cc821b814138eb9619fcbce20e6eda
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SHA256
7ab78920ad07396864187254f5323571807df03ca90c6b5eab2d1c8d0c27b4d5
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SHA512
99e85447b5c2a3380cb9add92c5ca2ded417cdc1de2fbc3655b32014a53fd7202cdf6cda6955bbc8605bd6667cffafc9df3a04b10e0dcf15079481ede3b62da1
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SSDEEP
49152:znAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAA8Kx/aa56L:TDqPoBhz1aRxcSUDk36SANKx/ag6L
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (3354) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
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Executes dropped EXE 3 IoCs
Processes:
mssecsvc.exemssecsvc.exetasksche.exepid process 3696 mssecsvc.exe 2332 mssecsvc.exe 3776 tasksche.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 Windows directory 2 IoCs
Processes:
rundll32.exemssecsvc.exedescription ioc process File created C:\WINDOWS\mssecsvc.exe rundll32.exe File created C:\WINDOWS\tasksche.exe mssecsvc.exe -
Modifies data under HKEY_USERS 5 IoCs
Processes:
mssecsvc.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" mssecsvc.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 352 wrote to memory of 2624 352 rundll32.exe rundll32.exe PID 352 wrote to memory of 2624 352 rundll32.exe rundll32.exe PID 352 wrote to memory of 2624 352 rundll32.exe rundll32.exe PID 2624 wrote to memory of 3696 2624 rundll32.exe mssecsvc.exe PID 2624 wrote to memory of 3696 2624 rundll32.exe mssecsvc.exe PID 2624 wrote to memory of 3696 2624 rundll32.exe mssecsvc.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\4c58581fa08accc15994f3db1098a5bc_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:352 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\4c58581fa08accc15994f3db1098a5bc_JaffaCakes118.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2624 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:3696 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:3776
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C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe -m security1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2332
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.6MB
MD59bcd08d46432b6dac27417b0de3da8b1
SHA1d16fae609a6cc1049fb008039555c2cc67db8638
SHA2564beab4d0d34aa39daecd1846d8a574aacbda506618bdbabc3ffeea46e121e774
SHA512b987e4b323fc59b82b71f4f5e0fe71b0324811247ab488c19688cdc1430322deaadb6b73528178277b3ac9e3e89f5f938381b768839d99e7a72600ea5dfd636a
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Filesize
3.4MB
MD582246a37bc2b94a29240a8b49de5cf57
SHA160d6df7c05d3a037adb5ff61a563a7ae7ab00f36
SHA256372be1952cbc480ee462d263e3e067b82ae542e7b65789508575642bd960f18e
SHA512047cab5fb0ef6bf88db1fe2fbf7200cf810a1b057e9b3488e32a6d8cf96dd56e9d397c5dc16885f48aca4d858a3612af74284819e50006e3279bcf9642200289