Analysis
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max time kernel
149s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
19-04-2024 09:29
Static task
static1
Behavioral task
behavioral1
Sample
Bad Rabit.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
Bad Rabit.exe
Resource
win10v2004-20240412-en
General
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Target
Bad Rabit.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
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SSDEEP
12288:BHNTywFAvN86pLbqWRKHZKfErrZJyZ0yqsGO3XR63:vT56NbqWRwZaEr3yt2O3XR63
Malware Config
Signatures
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BadRabbit
Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.
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Mimikatz
mimikatz is an open source tool to dump credentials on Windows.
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mimikatz is an open source tool to dump credentials on Windows 1 IoCs
resource yara_rule behavioral2/files/0x0009000000023373-20.dat mimikatz -
Executes dropped EXE 1 IoCs
pid Process 1360 7271.tmp -
Loads dropped DLL 1 IoCs
pid Process 2452 rundll32.exe -
Drops file in Windows directory 5 IoCs
description ioc Process 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 File opened for modification C:\Windows\7271.tmp rundll32.exe File created C:\Windows\infpub.dat Bad Rabit.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2572 schtasks.exe 3304 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
pid Process 2452 rundll32.exe 2452 rundll32.exe 2452 rundll32.exe 2452 rundll32.exe 1360 7271.tmp 1360 7271.tmp 1360 7271.tmp 1360 7271.tmp 1360 7271.tmp 1360 7271.tmp -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeShutdownPrivilege 2452 rundll32.exe Token: SeDebugPrivilege 2452 rundll32.exe Token: SeTcbPrivilege 2452 rundll32.exe Token: SeDebugPrivilege 1360 7271.tmp -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 2756 wrote to memory of 2452 2756 Bad Rabit.exe 89 PID 2756 wrote to memory of 2452 2756 Bad Rabit.exe 89 PID 2756 wrote to memory of 2452 2756 Bad Rabit.exe 89 PID 2452 wrote to memory of 2152 2452 rundll32.exe 90 PID 2452 wrote to memory of 2152 2452 rundll32.exe 90 PID 2452 wrote to memory of 2152 2452 rundll32.exe 90 PID 2152 wrote to memory of 3016 2152 cmd.exe 92 PID 2152 wrote to memory of 3016 2152 cmd.exe 92 PID 2152 wrote to memory of 3016 2152 cmd.exe 92 PID 2452 wrote to memory of 5096 2452 rundll32.exe 97 PID 2452 wrote to memory of 5096 2452 rundll32.exe 97 PID 2452 wrote to memory of 5096 2452 rundll32.exe 97 PID 2452 wrote to memory of 4916 2452 rundll32.exe 99 PID 2452 wrote to memory of 4916 2452 rundll32.exe 99 PID 2452 wrote to memory of 4916 2452 rundll32.exe 99 PID 5096 wrote to memory of 2572 5096 cmd.exe 100 PID 5096 wrote to memory of 2572 5096 cmd.exe 100 PID 5096 wrote to memory of 2572 5096 cmd.exe 100 PID 2452 wrote to memory of 1360 2452 rundll32.exe 102 PID 2452 wrote to memory of 1360 2452 rundll32.exe 102 PID 4916 wrote to memory of 3304 4916 cmd.exe 104 PID 4916 wrote to memory of 3304 4916 cmd.exe 104 PID 4916 wrote to memory of 3304 4916 cmd.exe 104
Processes
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C:\Users\Admin\AppData\Local\Temp\Bad Rabit.exe"C:\Users\Admin\AppData\Local\Temp\Bad Rabit.exe"1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2756 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\system32\rundll32.exe C:\Windows\infpub.dat,#1 152⤵
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2452 -
C:\Windows\SysWOW64\cmd.exe/c schtasks /Delete /F /TN rhaegal3⤵
- Suspicious use of WriteProcessMemory
PID:2152 -
C:\Windows\SysWOW64\schtasks.exeschtasks /Delete /F /TN rhaegal4⤵PID:3016
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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 3175954994 && exit"3⤵
- Suspicious use of WriteProcessMemory
PID:5096 -
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 3175954994 && exit"4⤵
- Creates scheduled task(s)
PID:2572
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C:\Windows\SysWOW64\cmd.exe/c schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 09:47:003⤵
- Suspicious use of WriteProcessMemory
PID:4916 -
C:\Windows\SysWOW64\schtasks.exeschtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 09:47:004⤵
- Creates scheduled task(s)
PID:3304
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C:\Windows\7271.tmp"C:\Windows\7271.tmp" \\.\pipe\{3A8ABDB8-C0F8-425F-AA7C-98C972C381C9}3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1360
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60KB
MD5347ac3b6b791054de3e5720a7144a977
SHA1413eba3973a15c1a6429d9f170f3e8287f98c21c
SHA256301b905eb98d8d6bb559c04bbda26628a942b2c4107c07a02e8f753bdcfe347c
SHA5129a399916bc681964af1e1061bc0a8e2926307642557539ad587ce6f9b5ef93bdf1820fe5d7b5ffe5f0bb38e5b4dc6add213ba04048c0c7c264646375fcd01787
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Filesize
401KB
MD51d724f95c61f1055f0d02c2154bbccd3
SHA179116fe99f2b421c52ef64097f0f39b815b20907
SHA256579fd8a0385482fb4c789561a30b09f25671e86422f40ef5cca2036b28f99648
SHA512f2d7b018d1516df1c97cfff5507957c75c6d9bf8e2ce52ae0052706f4ec62f13eba6d7be17e6ad2b693fdd58e1fd091c37f17bd2b948cdcd9b95b4ad428c0113