Analysis
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max time kernel
150s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
28-05-2023 17:53
Static task
static1
Behavioral task
behavioral1
Sample
05894899.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
05894899.exe
Resource
win10v2004-20230220-en
General
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Target
05894899.exe
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Size
3.6MB
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MD5
f8db667580cdaa9e33bdd5de9d766153
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SHA1
0c4a662548618bb027191803c93d2bb828d390be
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SHA256
cb11ca7f0afe82833d91792dc891a81088f1605c6cc029edecc21b4f433c0756
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SHA512
5d0ad490ea07b347729136a73633f22c7cf0afc157866eb1cdd2ec7d0c7b10a14ea4255958d7549ce7ac73a88d3d4099f707f0e2beac300e31340e5227d1c60b
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SSDEEP
98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2HI:yDqPe1Cxcxk3ZAEUadzR8yc4HI
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (3256) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
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Executes dropped EXE 1 IoCs
Processes:
tasksche.exepid process 4488 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 1 IoCs
Processes:
05894899.exedescription ioc process File created C:\WINDOWS\tasksche.exe 05894899.exe -
Modifies data under HKEY_USERS 5 IoCs
Processes:
05894899.exedescription ioc process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 05894899.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 05894899.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 05894899.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 05894899.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 05894899.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\05894899.exe"C:\Users\Admin\AppData\Local\Temp\05894899.exe"1⤵
- Drops file in Windows directory
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C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i2⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\Temp\05894899.exeC:\Users\Admin\AppData\Local\Temp\05894899.exe -m security1⤵
- Modifies data under HKEY_USERS
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Windows\tasksche.exeFilesize
3.4MB
MD57d4b3e8d346bf22cb82da150791e19f3
SHA1660f9eeb7fa31a66778963de86069a9f4b9a689c
SHA25612049e97ab7e5577347c7e1893181c3cab2ed8aef6be3a1fe5891b3e81865c9e
SHA512b4beab80c46a0abeaa9be674d376a5d1f8233eac77a7d0ad0b21f9a2037e070fef2fafbe95230ee20caaf39002e97cff498ce4d96ef2e9f8fe980773941c0618