Analysis
- max time kernel
151s - max time network
155s - platform
windows7_x64 - resource
win7-20220715-en - resource tags
arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-x64system - submitted
20/07/2022, 01:53
Static task
static1
Behavioral task
behavioral1
Sample
4880cc5c5074c2f58a770c3a292384f9.dll
Resource
win7-20220715-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
4880cc5c5074c2f58a770c3a292384f9.dll
Resource
win10v2004-20220414-en
windows10-2004-x64
7 signatures
150 seconds
General
- Target 4880cc5c5074c2f58a770c3a292384f9.dll
- Size 5.0MB
- Sample220720-cazlaaaggj
- SHA256 eac6b0bbe69ef8c0dc8e36cbff6d5c2a7cb4d662f4d88e5bc8b596b2275d694b
- MD5 4880cc5c5074c2f58a770c3a292384f9
- SHA1 c63ae9a8f1013675ff914b88d257e18bdbac7181
- SHA512 914435ff0b3f04c0451bee6aed3b3101f1f89f82cb50c15ee4cddab5716a0a7444ab31afc03103d0d4b0d18467399b3dfc1543749129c3cb7c353db91abda168
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Signatures
- Wannacry
WannaCry is a ransomware cryptoworm.
- Contacts a large (1127) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
- Executes dropped EXE 3 IoCs
pid Process 1940 mssecsvc.exe 1528 mssecsvc.exe 1116 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 21 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6e-2d-77-ba-d2-33\WpadDecision = "0" 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\ZoneMap\AutoDetect = "1" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6e-2d-77-ba-d2-33 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4F9BAEDB-BA5A-4FF9-BCEB-D9F455AA310D}\6e-2d-77-ba-d2-33 mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ef000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4F9BAEDB-BA5A-4FF9-BCEB-D9F455AA310D}\WpadDecisionReason = "1" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4F9BAEDB-BA5A-4FF9-BCEB-D9F455AA310D}\WpadDecisionTime = a04edc7edb9bd801 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4F9BAEDB-BA5A-4FF9-BCEB-D9F455AA310D}\WpadDecision = "0" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 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\Wpad mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4F9BAEDB-BA5A-4FF9-BCEB-D9F455AA310D}\WpadNetworkName = "Network 3" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6e-2d-77-ba-d2-33\WpadDecisionTime = a04edc7edb9bd801 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\ZoneMap\ mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6e-2d-77-ba-d2-33\WpadDecisionReason = "1" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4F9BAEDB-BA5A-4FF9-BCEB-D9F455AA310D} mssecsvc.exe - Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 576 wrote to memory of 1108 576 rundll32.exe 27 PID 576 wrote to memory of 1108 576 rundll32.exe 27 PID 576 wrote to memory of 1108 576 rundll32.exe 27 PID 576 wrote to memory of 1108 576 rundll32.exe 27 PID 576 wrote to memory of 1108 576 rundll32.exe 27 PID 576 wrote to memory of 1108 576 rundll32.exe 27 PID 576 wrote to memory of 1108 576 rundll32.exe 27 PID 1108 wrote to memory of 1940 1108 rundll32.exe 28 PID 1108 wrote to memory of 1940 1108 rundll32.exe 28 PID 1108 wrote to memory of 1940 1108 rundll32.exe 28 PID 1108 wrote to memory of 1940 1108 rundll32.exe 28
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\4880cc5c5074c2f58a770c3a292384f9.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:576 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\4880cc5c5074c2f58a770c3a292384f9.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1108 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:1940 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:1116
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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:1528
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\WINDOWS\mssecsvc.exe
- Size 3.6MB
- SHA256 715e4bb1f29e0d13fa502f77be2d2c8b841db3f3e6c873a4df2adb3f8d6873ad
- MD5 6e7fe070bf1423650e1880acda3681d0
- SHA1 0a0679cd0a1b84022630eb8edaa9917b33d80ff4
- SHA512 2b974ec0f40248169574ff39f034f215ae5fda49a276687a6ef065d79d4319684ce5463bdfee35cdc1a818ec0fca22857048e868100286d1a3600e81c5f4a107
- SSDEEP 49152:8nQQqMSPbcBVQejux+TSqTdX1HkQo6SAARdhnv:czqPoBhKxcSUDk36SAEdhv
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\mssecsvc.exe
- Size 3.6MB
- SHA256 715e4bb1f29e0d13fa502f77be2d2c8b841db3f3e6c873a4df2adb3f8d6873ad
- MD5 6e7fe070bf1423650e1880acda3681d0
- SHA1 0a0679cd0a1b84022630eb8edaa9917b33d80ff4
- SHA512 2b974ec0f40248169574ff39f034f215ae5fda49a276687a6ef065d79d4319684ce5463bdfee35cdc1a818ec0fca22857048e868100286d1a3600e81c5f4a107
- SSDEEP 49152:8nQQqMSPbcBVQejux+TSqTdX1HkQo6SAARdhnv:czqPoBhKxcSUDk36SAEdhv
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\mssecsvc.exe
- Size 3.6MB
- SHA256 715e4bb1f29e0d13fa502f77be2d2c8b841db3f3e6c873a4df2adb3f8d6873ad
- MD5 6e7fe070bf1423650e1880acda3681d0
- SHA1 0a0679cd0a1b84022630eb8edaa9917b33d80ff4
- SHA512 2b974ec0f40248169574ff39f034f215ae5fda49a276687a6ef065d79d4319684ce5463bdfee35cdc1a818ec0fca22857048e868100286d1a3600e81c5f4a107
- SSDEEP 49152:8nQQqMSPbcBVQejux+TSqTdX1HkQo6SAARdhnv:czqPoBhKxcSUDk36SAEdhv
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\tasksche.exe
- Size 3.4MB
- SHA256 aba9184f5e1343336fc084a11ab77bd7af11c93044cf7d3111d677dcf995bca4
- MD5 cb5d464d9db6d56e17ce7c3a507969be
- SHA1 b71e9ef4b55b17895be9996a10fe82abd5730f62
- SHA512 e238111195bded2da19b1e74d6c14cde19556d8660a6d466b14f8275c89c707619235125c31175a3cf0cd1be5d0b0f68551bce74970bb6d140e5b8ea54658da4
- SSDEEP 49152:nQqMSPbcBVQejux+TSqTdX1HkQo6SAARdhnv:QqPoBhKxcSUDk36SAEdhv
- MD5 SHA1 SHA512 SSDEEP