Analysis
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max time kernel
75s -
max time network
89s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
30-05-2022 21:50
Static task
static1
Behavioral task
behavioral1
Sample
BadRabbit.exe
Resource
win7-20220414-en
General
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Target
BadRabbit.exe
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Size
431KB
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MD5
fbbdc39af1139aebba4da004475e8839
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SHA1
de5c8d858e6e41da715dca1c019df0bfb92d32c0
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SHA256
630325cac09ac3fab908f903e3b00d0dadd5fdaa0875ed8496fcbb97a558d0da
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SHA512
74eca8c01de215b33d5ceea1fda3f3bef96b513f58a750dba04b0de36f7ef4f7846a6431d52879ca0d8641bfd504d4721a9a96fa2e18c6888fd67fa77686af87
Malware Config
Signatures
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BadRabbit
Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.
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Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\infpub.dat BadRabbit.exe File opened for modification C:\Windows\infpub.dat rundll32.exe File created C:\Windows\cscc.dat rundll32.exe File created C:\Windows\dispci.exe rundll32.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 428 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1992 rundll32.exe 1992 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 7 IoCs
description pid Process Token: SeShutdownPrivilege 1992 rundll32.exe Token: SeDebugPrivilege 1992 rundll32.exe Token: SeTcbPrivilege 1992 rundll32.exe Token: 33 1388 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 1388 AUDIODG.EXE Token: 33 1388 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 1388 AUDIODG.EXE -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 996 wrote to memory of 1992 996 BadRabbit.exe 29 PID 996 wrote to memory of 1992 996 BadRabbit.exe 29 PID 996 wrote to memory of 1992 996 BadRabbit.exe 29 PID 996 wrote to memory of 1992 996 BadRabbit.exe 29 PID 996 wrote to memory of 1992 996 BadRabbit.exe 29 PID 996 wrote to memory of 1992 996 BadRabbit.exe 29 PID 996 wrote to memory of 1992 996 BadRabbit.exe 29 PID 1992 wrote to memory of 1072 1992 rundll32.exe 30 PID 1992 wrote to memory of 1072 1992 rundll32.exe 30 PID 1992 wrote to memory of 1072 1992 rundll32.exe 30 PID 1992 wrote to memory of 1072 1992 rundll32.exe 30 PID 1072 wrote to memory of 468 1072 cmd.exe 32 PID 1072 wrote to memory of 468 1072 cmd.exe 32 PID 1072 wrote to memory of 468 1072 cmd.exe 32 PID 1072 wrote to memory of 468 1072 cmd.exe 32 PID 1992 wrote to memory of 1968 1992 rundll32.exe 33 PID 1992 wrote to memory of 1968 1992 rundll32.exe 33 PID 1992 wrote to memory of 1968 1992 rundll32.exe 33 PID 1992 wrote to memory of 1968 1992 rundll32.exe 33 PID 1968 wrote to memory of 428 1968 cmd.exe 35 PID 1968 wrote to memory of 428 1968 cmd.exe 35 PID 1968 wrote to memory of 428 1968 cmd.exe 35 PID 1968 wrote to memory of 428 1968 cmd.exe 35
Processes
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C:\Users\Admin\AppData\Local\Temp\BadRabbit.exe"C:\Users\Admin\AppData\Local\Temp\BadRabbit.exe"1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:996 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\system32\rundll32.exe C:\Windows\infpub.dat,#1 152⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1992 -
C:\Windows\SysWOW64\cmd.exe/c schtasks /Delete /F /TN rhaegal3⤵
- Suspicious use of WriteProcessMemory
PID:1072 -
C:\Windows\SysWOW64\schtasks.exeschtasks /Delete /F /TN rhaegal4⤵PID:468
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C:\Windows\SysWOW64\cmd.exe/c schtasks /Create /RU SYSTEM /SC ONSTART /TN rhaegal /TR "C:\Windows\system32\cmd.exe /C Start \"\" \"C:\Windows\dispci.exe\" -id 3363757907 && exit"3⤵
- Suspicious use of WriteProcessMemory
PID:1968 -
C:\Windows\SysWOW64\schtasks.exeschtasks /Create /RU SYSTEM /SC ONSTART /TN rhaegal /TR "C:\Windows\system32\cmd.exe /C Start \"\" \"C:\Windows\dispci.exe\" -id 3363757907 && exit"4⤵
- Creates scheduled task(s)
PID:428
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C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x01⤵PID:564
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x1801⤵
- Suspicious use of AdjustPrivilegeToken
PID:1388
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C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x11⤵PID:1108
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
401KB
MD51d724f95c61f1055f0d02c2154bbccd3
SHA179116fe99f2b421c52ef64097f0f39b815b20907
SHA256579fd8a0385482fb4c789561a30b09f25671e86422f40ef5cca2036b28f99648
SHA512f2d7b018d1516df1c97cfff5507957c75c6d9bf8e2ce52ae0052706f4ec62f13eba6d7be17e6ad2b693fdd58e1fd091c37f17bd2b948cdcd9b95b4ad428c0113