Analysis
- max time kernel
150s - max time network
150s - platform
windows7_x64 - resource
win7-20231129-en - resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system - submitted
16/05/2024, 02:12
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
4913bef3153a460ba000e20dfcfc6bd2_JaffaCakes118.dll
Resource
win7-20231129-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
4913bef3153a460ba000e20dfcfc6bd2_JaffaCakes118.dll
Resource
win10v2004-20240508-en
windows10-2004-x64
7 signatures
150 seconds
General
- Target 4913bef3153a460ba000e20dfcfc6bd2_JaffaCakes118.dll
- Size 5.0MB
- Sample240516-cms92afh6x
- SHA256 a09267d29f96c96cdae515723511affadecdf4210b4842ad142a25fc445b9946
- MD5 4913bef3153a460ba000e20dfcfc6bd2
- SHA1 251cd89d8176ae36afa8603bc8b4806d40434d19
- SHA512 9b7ec4ad9d5fa35476148f9b8740746d7c91b9a4f76bc9723a9f6b17e32bac798e7dcbe427f8885cc45269cebb6a885f72c6207b33c131068b1fba4ae2630fa0
- SSDEEP 24576:SbLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNLKz6626M+vbOSSqTPVXmiHt:SnAQqMSPbcBVQej/1INRx+TSqTdX1H
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Wannacry
WannaCry is a ransomware cryptoworm.
- Contacts a large (3338) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
- Executes dropped EXE 3 IoCs
pid Process 2728 mssecsvc.exe 3024 mssecsvc.exe 2656 tasksche.exe - Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
- 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 - Modifies data under HKEY_USERS 24 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B50791CF-554A-42C6-8980-B9EE60161D0C}\WpadNetworkName = "Network 3" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B50791CF-554A-42C6-8980-B9EE60161D0C}\WpadDecision = "0" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections 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 = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f004d000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B50791CF-554A-42C6-8980-B9EE60161D0C} mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B50791CF-554A-42C6-8980-B9EE60161D0C}\WpadDecisionReason = "1" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-3d-59-ec-13-ac mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-3d-59-ec-13-ac\WpadDecisionReason = "1" 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\Wpad\0a-3d-59-ec-13-ac\WpadDecision = "0" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-3d-59-ec-13-ac\WpadDecisionTime = b08c3b7336a7da01 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "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\{B50791CF-554A-42C6-8980-B9EE60161D0C}\WpadDecisionTime = b08c3b7336a7da01 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B50791CF-554A-42C6-8980-B9EE60161D0C}\0a-3d-59-ec-13-ac mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe - Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 1884 wrote to memory of 2384 1884 rundll32.exe 28 PID 1884 wrote to memory of 2384 1884 rundll32.exe 28 PID 1884 wrote to memory of 2384 1884 rundll32.exe 28 PID 1884 wrote to memory of 2384 1884 rundll32.exe 28 PID 1884 wrote to memory of 2384 1884 rundll32.exe 28 PID 1884 wrote to memory of 2384 1884 rundll32.exe 28 PID 1884 wrote to memory of 2384 1884 rundll32.exe 28 PID 2384 wrote to memory of 2728 2384 rundll32.exe 29 PID 2384 wrote to memory of 2728 2384 rundll32.exe 29 PID 2384 wrote to memory of 2728 2384 rundll32.exe 29 PID 2384 wrote to memory of 2728 2384 rundll32.exe 29
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\4913bef3153a460ba000e20dfcfc6bd2_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1884 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\4913bef3153a460ba000e20dfcfc6bd2_JaffaCakes118.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2384 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:2728 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:2656
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C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe -m security1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:3024
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Windows\mssecsvc.exe
- Size 3.6MB
- SHA256 1f640223292b888a828264e213291bcd0576c93e3bdd743c0a5c03e3e92afcc3
- MD5 28f265701ad1af13603171edc0cd26b5
- SHA1 069760bbf5e9b4455f488bb176969bddd82842d4
- SHA512 e9a1901e5ac50fce15f55de3ef3ad5b1d2943f242c5dc5e22a5e348d77e003933f6191474074bbcbde50fdf42aaba7cd9b2933da75522b058a826cc99b3c25d1
- SSDEEP 24576:2bLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNLKz6626M+vbOSSqTPVXmiHt:2nAQqMSPbcBVQej/1INRx+TSqTdX1H
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\tasksche.exe
- Size 3.4MB
- SHA256 b314688acf46f5592ea9f4399a34300c07e0fc26444a6b9a354de89f353a2eed
- MD5 088b638192d03a422cd8ca7d0892ef0d
- SHA1 ca76cd7074907d77e6809255a3a5255941419344
- SHA512 ae6fcf7204e8c964352857fd17769aaa83195e3323d53f37b16a913897a8a122233d32203130da8b3a8d180015637921fe432a7c3e2e89c17178c84537bc126b
- SSDEEP 24576:nQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNLKz6626M+vbOSSqTPVXmiHt9:nQqMSPbcBVQej/1INRx+TSqTdX1HH
- MD5 SHA1 SHA512 SSDEEP