Analysis
- max time kernel
150s - max time network
154s - platform
windows7_x64 - resource
win7-20220715-en - resource tags
arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-x64system - submitted
20/07/2022, 04:20
Static task
static1
Behavioral task
behavioral1
Sample
bcba09e4a9bf78cd5a4336c6a6bc9ea3.dll
Resource
win7-20220715-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
bcba09e4a9bf78cd5a4336c6a6bc9ea3.dll
Resource
win10v2004-20220718-en
windows10-2004-x64
6 signatures
150 seconds
General
- Target bcba09e4a9bf78cd5a4336c6a6bc9ea3.dll
- Size 5.0MB
- Sample220720-ex4vmabgc2
- SHA256 68c3bede98e8a2c5dfecea4e932078337c700b73e6e9cfc0925d13e93f2163fd
- MD5 bcba09e4a9bf78cd5a4336c6a6bc9ea3
- SHA1 5bb97151b3efb9ae3918ee994904269f37f4899d
- SHA512 1382c13e5a458bca7eeeb8f8d92b79d8ccb783af6ade12866e391c7315eaa9db4d9e795f520aee754f2ad1073e83f9aacbfa0951ebbf9190c7a395197222f621
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Signatures
- Wannacry
WannaCry is a ransomware cryptoworm.
- Contacts a large (1297) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
- Executes dropped EXE 3 IoCs
pid Process 1656 mssecsvc.exe 2032 mssecsvc.exe 588 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 - 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\History\CachePrefix = "Visited:" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C8CA086F-D50D-45A1-AB36-5AD6EAF5BC43}\12-2c-18-70-08-fd mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-2c-18-70-08-fd\WpadDecisionTime = 90da3206f09bd801 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-2c-18-70-08-fd\WpadDecision = "0" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings 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\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\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00e9000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C8CA086F-D50D-45A1-AB36-5AD6EAF5BC43}\WpadDecision = "0" mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C8CA086F-D50D-45A1-AB36-5AD6EAF5BC43}\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\UNCAsIntranet = "0" mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-2c-18-70-08-fd mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-2c-18-70-08-fd\WpadDecisionReason = "1" 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\ZoneMap\ mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C8CA086F-D50D-45A1-AB36-5AD6EAF5BC43} mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C8CA086F-D50D-45A1-AB36-5AD6EAF5BC43}\WpadDecisionReason = "1" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C8CA086F-D50D-45A1-AB36-5AD6EAF5BC43}\WpadDecisionTime = 90da3206f09bd801 mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 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 - Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 908 wrote to memory of 1096 908 rundll32.exe 27 PID 908 wrote to memory of 1096 908 rundll32.exe 27 PID 908 wrote to memory of 1096 908 rundll32.exe 27 PID 908 wrote to memory of 1096 908 rundll32.exe 27 PID 908 wrote to memory of 1096 908 rundll32.exe 27 PID 908 wrote to memory of 1096 908 rundll32.exe 27 PID 908 wrote to memory of 1096 908 rundll32.exe 27 PID 1096 wrote to memory of 1656 1096 rundll32.exe 28 PID 1096 wrote to memory of 1656 1096 rundll32.exe 28 PID 1096 wrote to memory of 1656 1096 rundll32.exe 28 PID 1096 wrote to memory of 1656 1096 rundll32.exe 28
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\bcba09e4a9bf78cd5a4336c6a6bc9ea3.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:908 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\bcba09e4a9bf78cd5a4336c6a6bc9ea3.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1096 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:1656 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:588
-
-
-
-
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe -m security1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2032
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\WINDOWS\mssecsvc.exe
- Size 3.6MB
- SHA256 450e48a019622398d825d2e6e0b8b174f584b0950485567a3e2648a1d0136708
- MD5 98e833799a16c9e0f7be81a67932cf4c
- SHA1 8bbe449fb6b17276dff759b2bc0b7c1a2bbf3230
- SHA512 834d33c43ad0bfec607bf1dc083a6016ec0a35998ffff73848f82982876593f22793950208750d20b328cc2538922978e619a6030f5c92d5a5d7c6df4ae1ee7b
- SSDEEP 49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9:yDqPoBhz1aRxcSUDk36SAEdhvxWa9
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\mssecsvc.exe
- Size 3.6MB
- SHA256 450e48a019622398d825d2e6e0b8b174f584b0950485567a3e2648a1d0136708
- MD5 98e833799a16c9e0f7be81a67932cf4c
- SHA1 8bbe449fb6b17276dff759b2bc0b7c1a2bbf3230
- SHA512 834d33c43ad0bfec607bf1dc083a6016ec0a35998ffff73848f82982876593f22793950208750d20b328cc2538922978e619a6030f5c92d5a5d7c6df4ae1ee7b
- SSDEEP 49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9:yDqPoBhz1aRxcSUDk36SAEdhvxWa9
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\mssecsvc.exe
- Size 3.6MB
- SHA256 450e48a019622398d825d2e6e0b8b174f584b0950485567a3e2648a1d0136708
- MD5 98e833799a16c9e0f7be81a67932cf4c
- SHA1 8bbe449fb6b17276dff759b2bc0b7c1a2bbf3230
- SHA512 834d33c43ad0bfec607bf1dc083a6016ec0a35998ffff73848f82982876593f22793950208750d20b328cc2538922978e619a6030f5c92d5a5d7c6df4ae1ee7b
- SSDEEP 49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9:yDqPoBhz1aRxcSUDk36SAEdhvxWa9
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\tasksche.exe
- Size 3.4MB
- SHA256 52efab62b01da6fd4870c1064d7b326a284403d68dd627b434f1eb4a6194d4a3
- MD5 f8c47c599d3ede4372209ee11c5978a8
- SHA1 b34db2c2ef0b2567ce870e267860b513de45228a
- SHA512 9f93a1e06bd15435b9363dc5734be8861783d19cc01ae32d3b66f8271a8fc394d650ad63fa37fd1ed7f6b023f71ccd3ee1f2cfd37fe550903a95d6059f4e5353
- SSDEEP 49152:nQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9:QqPoBhz1aRxcSUDk36SAEdhvxWa9
- MD5 SHA1 SHA512 SSDEEP