Analysis
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max time kernel
149s -
max time network
152s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-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 behavioral1/files/0x0034000000015d56-21.dat mimikatz -
Executes dropped EXE 1 IoCs
pid Process 2536 29DE.tmp -
Drops file in Windows directory 5 IoCs
description ioc Process File created C:\Windows\dispci.exe rundll32.exe File opened for modification C:\Windows\29DE.tmp rundll32.exe File created C:\Windows\infpub.dat Bad Rabit.exe File opened for modification C:\Windows\infpub.dat rundll32.exe File created C:\Windows\cscc.dat rundll32.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 2656 schtasks.exe 1672 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 7 IoCs
pid Process 3040 rundll32.exe 3040 rundll32.exe 2536 29DE.tmp 2536 29DE.tmp 2536 29DE.tmp 2536 29DE.tmp 2536 29DE.tmp -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeShutdownPrivilege 3040 rundll32.exe Token: SeDebugPrivilege 3040 rundll32.exe Token: SeTcbPrivilege 3040 rundll32.exe Token: SeDebugPrivilege 2536 29DE.tmp -
Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 2240 wrote to memory of 3040 2240 Bad Rabit.exe 29 PID 2240 wrote to memory of 3040 2240 Bad Rabit.exe 29 PID 2240 wrote to memory of 3040 2240 Bad Rabit.exe 29 PID 2240 wrote to memory of 3040 2240 Bad Rabit.exe 29 PID 2240 wrote to memory of 3040 2240 Bad Rabit.exe 29 PID 2240 wrote to memory of 3040 2240 Bad Rabit.exe 29 PID 2240 wrote to memory of 3040 2240 Bad Rabit.exe 29 PID 3040 wrote to memory of 2644 3040 rundll32.exe 30 PID 3040 wrote to memory of 2644 3040 rundll32.exe 30 PID 3040 wrote to memory of 2644 3040 rundll32.exe 30 PID 3040 wrote to memory of 2644 3040 rundll32.exe 30 PID 2644 wrote to memory of 2624 2644 cmd.exe 32 PID 2644 wrote to memory of 2624 2644 cmd.exe 32 PID 2644 wrote to memory of 2624 2644 cmd.exe 32 PID 2644 wrote to memory of 2624 2644 cmd.exe 32 PID 3040 wrote to memory of 2784 3040 rundll32.exe 33 PID 3040 wrote to memory of 2784 3040 rundll32.exe 33 PID 3040 wrote to memory of 2784 3040 rundll32.exe 33 PID 3040 wrote to memory of 2784 3040 rundll32.exe 33 PID 2784 wrote to memory of 2656 2784 cmd.exe 35 PID 2784 wrote to memory of 2656 2784 cmd.exe 35 PID 2784 wrote to memory of 2656 2784 cmd.exe 35 PID 2784 wrote to memory of 2656 2784 cmd.exe 35 PID 3040 wrote to memory of 2568 3040 rundll32.exe 36 PID 3040 wrote to memory of 2568 3040 rundll32.exe 36 PID 3040 wrote to memory of 2568 3040 rundll32.exe 36 PID 3040 wrote to memory of 2568 3040 rundll32.exe 36 PID 2568 wrote to memory of 1672 2568 cmd.exe 38 PID 2568 wrote to memory of 1672 2568 cmd.exe 38 PID 2568 wrote to memory of 1672 2568 cmd.exe 38 PID 2568 wrote to memory of 1672 2568 cmd.exe 38 PID 3040 wrote to memory of 2536 3040 rundll32.exe 39 PID 3040 wrote to memory of 2536 3040 rundll32.exe 39 PID 3040 wrote to memory of 2536 3040 rundll32.exe 39 PID 3040 wrote to memory of 2536 3040 rundll32.exe 39
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:2240 -
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:3040 -
C:\Windows\SysWOW64\cmd.exe/c schtasks /Delete /F /TN rhaegal3⤵
- Suspicious use of WriteProcessMemory
PID:2644 -
C:\Windows\SysWOW64\schtasks.exeschtasks /Delete /F /TN rhaegal4⤵PID:2624
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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 2964479524 && exit"3⤵
- Suspicious use of WriteProcessMemory
PID:2784 -
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 2964479524 && exit"4⤵
- Creates scheduled task(s)
PID:2656
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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:2568 -
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:1672
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C:\Windows\29DE.tmp"C:\Windows\29DE.tmp" \\.\pipe\{CC6F594E-3884-41AF-BC4C-29459AF2D994}3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2536
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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