Analysis
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max time kernel
150s -
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, 07:36
Static task
static1
Behavioral task
behavioral1
Sample
44ffe5af1ebae5b83a835fe078be7cb6.dll
Resource
win7-20220715-en
Behavioral task
behavioral2
Sample
44ffe5af1ebae5b83a835fe078be7cb6.dll
Resource
win10v2004-20220414-en
General
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Target
44ffe5af1ebae5b83a835fe078be7cb6.dll
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Size
5.0MB
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MD5
44ffe5af1ebae5b83a835fe078be7cb6
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SHA1
bf273adfd3b00dcbfa17c55cc680cc8c56b08e01
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SHA256
a2b0df0948c4b5aa93c02230a3931977bba30b3877f20929ed7d2a580b3cfe06
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SHA512
ddca273e57e55ef740d20c639a8b13c1e3b7c5909e3d8af90b8270c863a0bd3a34118558f2a4979f34f6d97a266152ee8004ac9c3fedcc569aa320f91d677457
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (1250) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
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Executes dropped EXE 2 IoCs
pid Process 1504 mssecsvr.exe 1484 mssecsvr.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\tasksche.exe mssecsvr.exe File created C:\WINDOWS\mssecsvr.exe rundll32.exe -
Modifies data under HKEY_USERS 24 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections 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 (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AD996A31-4313-4345-8160-5D71A041190B} mssecsvr.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 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\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 Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ae-95-de-59-f8-43\WpadDecisionReason = "1" mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings 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 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\{AD996A31-4313-4345-8160-5D71A041190B}\WpadDecision = "0" mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ae-95-de-59-f8-43\WpadDecision = "0" mssecsvr.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ae-95-de-59-f8-43\WpadDecisionTime = 002a41680b9cd801 mssecsvr.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix mssecsvr.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00fa000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AD996A31-4313-4345-8160-5D71A041190B}\WpadDecisionReason = "1" mssecsvr.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AD996A31-4313-4345-8160-5D71A041190B}\WpadDecisionTime = 002a41680b9cd801 mssecsvr.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AD996A31-4313-4345-8160-5D71A041190B}\WpadNetworkName = "Network 3" mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ae-95-de-59-f8-43 mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AD996A31-4313-4345-8160-5D71A041190B}\ae-95-de-59-f8-43 mssecsvr.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 852 wrote to memory of 1956 852 rundll32.exe 27 PID 852 wrote to memory of 1956 852 rundll32.exe 27 PID 852 wrote to memory of 1956 852 rundll32.exe 27 PID 852 wrote to memory of 1956 852 rundll32.exe 27 PID 852 wrote to memory of 1956 852 rundll32.exe 27 PID 852 wrote to memory of 1956 852 rundll32.exe 27 PID 852 wrote to memory of 1956 852 rundll32.exe 27 PID 1956 wrote to memory of 1504 1956 rundll32.exe 28 PID 1956 wrote to memory of 1504 1956 rundll32.exe 28 PID 1956 wrote to memory of 1504 1956 rundll32.exe 28 PID 1956 wrote to memory of 1504 1956 rundll32.exe 28
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\44ffe5af1ebae5b83a835fe078be7cb6.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:852 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\44ffe5af1ebae5b83a835fe078be7cb6.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1956 -
C:\WINDOWS\mssecsvr.exeC:\WINDOWS\mssecsvr.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:1504
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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:1484
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
2.2MB
MD5b3c138999310f32073b22352d1c7abaf
SHA10bc0bb28bcbba4d0c6fb1efa4427e7bb8b260d3d
SHA256e0f06ba9c8c372f2423cef016ef33c61c55e502a4819b20d801ec3883585e62b
SHA512a7c1d3496d4d7a00c1ba764572fdd5eaf888ee31629bf0ad27397556923ca629d2a32fe371004529193bab59ae1d43167ffd4c361164759c894c36f343578254
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Filesize
2.2MB
MD5b3c138999310f32073b22352d1c7abaf
SHA10bc0bb28bcbba4d0c6fb1efa4427e7bb8b260d3d
SHA256e0f06ba9c8c372f2423cef016ef33c61c55e502a4819b20d801ec3883585e62b
SHA512a7c1d3496d4d7a00c1ba764572fdd5eaf888ee31629bf0ad27397556923ca629d2a32fe371004529193bab59ae1d43167ffd4c361164759c894c36f343578254
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Filesize
2.2MB
MD5b3c138999310f32073b22352d1c7abaf
SHA10bc0bb28bcbba4d0c6fb1efa4427e7bb8b260d3d
SHA256e0f06ba9c8c372f2423cef016ef33c61c55e502a4819b20d801ec3883585e62b
SHA512a7c1d3496d4d7a00c1ba764572fdd5eaf888ee31629bf0ad27397556923ca629d2a32fe371004529193bab59ae1d43167ffd4c361164759c894c36f343578254