Analysis
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max time kernel
150s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
18-05-2024 12:30
Static task
static1
Behavioral task
behavioral1
Sample
54b944ac2d5aa01418d4bd2edf3d8f2c_JaffaCakes118.dll
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
54b944ac2d5aa01418d4bd2edf3d8f2c_JaffaCakes118.dll
Resource
win10v2004-20240508-en
General
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Target
54b944ac2d5aa01418d4bd2edf3d8f2c_JaffaCakes118.dll
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Size
5.0MB
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MD5
54b944ac2d5aa01418d4bd2edf3d8f2c
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SHA1
0176822d14a9af9835133c4a0843de632baaa7f4
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SHA256
125f6ac932a8434ddb790b25772bb73e07979a4273d9533fd21ac08ca0e93bc4
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SHA512
90129729686f50e78a38f731f0aabde6aeac18c448ab6ec3efa7298b0c207b3f014336c7bc51dbcf4095cc09540133df818a9e5751fb8e1b5a25e3ed9c79dcad
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SSDEEP
24576:SbLgddQhfdmMSirYbcMNgef0pE7A4kqAH1pNZtA0p+9XE:SnAQqMSPbcBVa8yAH1plA
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (3295) 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 2300 mssecsvc.exe 820 mssecsvc.exe 3080 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:
mssecsvc.exerundll32.exedescription ioc process File created C:\WINDOWS\tasksche.exe mssecsvc.exe File created C:\WINDOWS\mssecsvc.exe rundll32.exe -
Modifies data under HKEY_USERS 5 IoCs
Processes:
mssecsvc.exedescription ioc process 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 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 -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 2284 wrote to memory of 3992 2284 rundll32.exe rundll32.exe PID 2284 wrote to memory of 3992 2284 rundll32.exe rundll32.exe PID 2284 wrote to memory of 3992 2284 rundll32.exe rundll32.exe PID 3992 wrote to memory of 2300 3992 rundll32.exe mssecsvc.exe PID 3992 wrote to memory of 2300 3992 rundll32.exe mssecsvc.exe PID 3992 wrote to memory of 2300 3992 rundll32.exe mssecsvc.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\54b944ac2d5aa01418d4bd2edf3d8f2c_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2284 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\54b944ac2d5aa01418d4bd2edf3d8f2c_JaffaCakes118.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:3992 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:2300 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:3080
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C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe -m security1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:820
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.6MB
MD555d39603be1a94d3a8e4a09ed518f3cf
SHA13672cd598c6ec464cb3894db55b13fa8af90ae23
SHA2569533bfdc70889f27002f37547ef7b2ab135c436b47013a7a3e346b95eda07e38
SHA512cd8213a61b61522e7c6497e7462b55d8e3ebe979d0e9a121898f5f22177b691d5ef241a47a3cd1cd28d5b1077189d66ad925ed5996bd93e0e99888d32138e2db
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Filesize
3.4MB
MD5d31cd792c7838ba2f502678d4a50337b
SHA177e59dfa8f916343b65de03566cad285335f443b
SHA2560bb994afc567ca1cac648b29c559069eafe14ec6a2979697428e2446e3750313
SHA5122656de11f96d5e5a11cf52bef79160fce1fed908c0553948e5cdb5869ce7c6f1a73173b8f06433c05e5f89c6c2c35f7c155aaa608145e56f490878d89d9559fd