Analysis
- max time kernel
150s - max time network
155s - platform
windows7_x64 - resource
win7-20220718-en - resource tags
arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system - submitted
20/07/2022, 04:47
Static task
static1
Behavioral task
behavioral1
Sample
93c135be6d0362d349969232135ae359.dll
Resource
win7-20220718-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
93c135be6d0362d349969232135ae359.dll
Resource
win10v2004-20220718-en
windows10-2004-x64
7 signatures
150 seconds
General
- Target 93c135be6d0362d349969232135ae359.dll
- Size 5.0MB
- Sample220720-fejmeacedj
- SHA256 b2adbfde1abc1bd66a4e65f2803f9dad4e16d4a3151122e5c954d2a6bcb7e18b
- MD5 93c135be6d0362d349969232135ae359
- SHA1 c585e7d0bfbe0713456422925cb4b19cfcf58af9
- SHA512 5237ce1ae5b700208f45b6000d0403d45edf743f7e05c7dc4c6d5b02fb2cfbccdc46a36d0cfb977ff8b12dd4ae23d80dc3fd96dc7d89fc0fba3e77e14d868009
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Signatures
- Wannacry
WannaCry is a ransomware cryptoworm.
- Contacts a large (1232) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
- Executes dropped EXE 3 IoCs
pid Process 1624 mssecsvr.exe 924 mssecsvr.exe 1932 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 mssecsvr.exe - Drops file in Windows directory 2 IoCs
description ioc Process File created C:\WINDOWS\mssecsvr.exe rundll32.exe File created C:\WINDOWS\tasksche.exe mssecsvr.exe - Modifies data under HKEY_USERS 24 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1CA9B863-61DE-4C20-9D34-977E567986D4}\WpadDecisionReason = "1" mssecsvr.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1CA9B863-61DE-4C20-9D34-977E567986D4}\WpadNetworkName = "Network 3" mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-24-e9-1d-4e-39\WpadDecisionReason = "1" mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" mssecsvr.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" mssecsvr.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1CA9B863-61DE-4C20-9D34-977E567986D4}\WpadDecision = "0" mssecsvr.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-24-e9-1d-4e-39\WpadDecisionTime = 00218791049cd801 mssecsvr.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0" mssecsvr.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1CA9B863-61DE-4C20-9D34-977E567986D4}\WpadDecisionTime = 00218791049cd801 mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-24-e9-1d-4e-39\WpadDecision = "0" mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings mssecsvr.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1CA9B863-61DE-4C20-9D34-977E567986D4}\be-24-e9-1d-4e-39 mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1CA9B863-61DE-4C20-9D34-977E567986D4} mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-24-e9-1d-4e-39 mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections mssecsvr.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ mssecsvr.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00cb000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvr.exe - Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 2000 wrote to memory of 1144 2000 rundll32.exe 28 PID 2000 wrote to memory of 1144 2000 rundll32.exe 28 PID 2000 wrote to memory of 1144 2000 rundll32.exe 28 PID 2000 wrote to memory of 1144 2000 rundll32.exe 28 PID 2000 wrote to memory of 1144 2000 rundll32.exe 28 PID 2000 wrote to memory of 1144 2000 rundll32.exe 28 PID 2000 wrote to memory of 1144 2000 rundll32.exe 28 PID 1144 wrote to memory of 1624 1144 rundll32.exe 29 PID 1144 wrote to memory of 1624 1144 rundll32.exe 29 PID 1144 wrote to memory of 1624 1144 rundll32.exe 29 PID 1144 wrote to memory of 1624 1144 rundll32.exe 29 PID 1624 wrote to memory of 1932 1624 mssecsvr.exe 32 PID 1624 wrote to memory of 1932 1624 mssecsvr.exe 32 PID 1624 wrote to memory of 1932 1624 mssecsvr.exe 32 PID 1624 wrote to memory of 1932 1624 mssecsvr.exe 32
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\93c135be6d0362d349969232135ae359.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2000 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\93c135be6d0362d349969232135ae359.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1144 -
C:\WINDOWS\mssecsvr.exeC:\WINDOWS\mssecsvr.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1624 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:1932
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C:\WINDOWS\mssecsvr.exeC:\WINDOWS\mssecsvr.exe -m security1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:924
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\WINDOWS\mssecsvr.exe
- Size 2.2MB
- SHA256 46999e9abf82743f14e93bdaf18b2f457206a0b04ea5907ffabb06e412968239
- MD5 55a0252f51c360f2078468adc6d5e08d
- SHA1 6825592cb8298e7f286a90f6df1067a986f85f13
- SHA512 a0515725c0ed31fd851b8164d18abefb61a8541825a5378103dc6c27182d05de42444c9aa397ccce30ee524944a5376ea06b74b609ba2c01c198d1d1cdb7281e
- SSDEEP 49152:QnGeNbcBVQej/1INRx+TSqTdX1HkQo6SAgqGi:QG8oBhz1aRxcSUDk36SAgHi
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\mssecsvr.exe
- Size 2.2MB
- SHA256 46999e9abf82743f14e93bdaf18b2f457206a0b04ea5907ffabb06e412968239
- MD5 55a0252f51c360f2078468adc6d5e08d
- SHA1 6825592cb8298e7f286a90f6df1067a986f85f13
- SHA512 a0515725c0ed31fd851b8164d18abefb61a8541825a5378103dc6c27182d05de42444c9aa397ccce30ee524944a5376ea06b74b609ba2c01c198d1d1cdb7281e
- SSDEEP 49152:QnGeNbcBVQej/1INRx+TSqTdX1HkQo6SAgqGi:QG8oBhz1aRxcSUDk36SAgHi
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\mssecsvr.exe
- Size 2.2MB
- SHA256 46999e9abf82743f14e93bdaf18b2f457206a0b04ea5907ffabb06e412968239
- MD5 55a0252f51c360f2078468adc6d5e08d
- SHA1 6825592cb8298e7f286a90f6df1067a986f85f13
- SHA512 a0515725c0ed31fd851b8164d18abefb61a8541825a5378103dc6c27182d05de42444c9aa397ccce30ee524944a5376ea06b74b609ba2c01c198d1d1cdb7281e
- SSDEEP 49152:QnGeNbcBVQej/1INRx+TSqTdX1HkQo6SAgqGi:QG8oBhz1aRxcSUDk36SAgHi
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\tasksche.exe
- Size 2.0MB
- SHA256 333b4351bd0ec3547cb88330581c8a0537eafd27847cd9c3b7fda4ccfd729441
- MD5 8898f3f3c6f1ad0a3ad4d95dc027a7c6
- SHA1 7d4ccf6c123089e3ec4bf3c8944a9b68ada1f069
- SHA512 fd0fd17b50d367cc2ea0102d736bd71128201b258fa42c3bb3a7adc9a11ddf6174df855bc246ec876afcbef2ff9eb58a28bf3fc8cf125334db456e627f192f94
- SSDEEP 49152:EeNbcBVQej/1INRx+TSqTdX1HkQo6SAgq9:E8oBhz1aRxcSUDk36SAgw
- MD5 SHA1 SHA512 SSDEEP