badrabbit | c7a2e368e33357e1390e76e41b5aad5d6d593b247fe754cd40ca7346b380851b

General

Target
[email protected]
Size 395KB
Sample261104-exldaae15v
SHA256 c7a2e368e33357e1390e76e41b5aad5d6d593b247fe754cd40ca7346b380851b
MD5 2fdcb6449af0bf0b2408b7d5103c84a4
SHA1 60d697e722dde74a9309cb84e394654115edcd2b
SHA512 eb48b793248c295f5f66ed014a93b629e1312916e1d81cdfb85e405aa3aaa11cb039bdbb30e499625fdbb9f331ad668bd9881bbce77c7fdf623f2921e32af1f0
SSDEEP 6144:nQrspjiHWimB4ZtmfmcuEdKjFd5eXn8j4qt5JmcqIA9s+WIIXAKrnP1N1FeDlzY:DIZ5xBjjj4qhPZ+c7NXJ
TLSH
T10B8423ADDCA99E966CBA672D2DC6C1BD149D9C07C04B53AE645D07F1430F42213F8ACB
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery execution badrabbit mimikatz persistence ransomware

Malware Config

Signatures

Family: BadRabbit
Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.
ransomware badrabbit
Family: Mimikatz
mimikatz is an open source tool to dump credentials on Windows.
mimikatz

mimikatz is an open source tool to dump credentials on Windows 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001c5d5-25.dat	mimikatz

Executes dropped EXE 3 IoCs

pid	Process
1156	[email protected]
864	4E31.tmp
5816	cscc.dat

Loads dropped DLL 1 IoCs

pid	Process
3336	rundll32.exe

Drops file in Windows directory 5 IoCs

description	ioc	Process
File created	C:\Windows\infpub.dat	[email protected]
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\4E31.tmp	rundll32.exe

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
1284	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	[email protected]
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1716	schtasks.exe
4308	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3336	rundll32.exe
3336	rundll32.exe
3336	rundll32.exe
3336	rundll32.exe
864	4E31.tmp
864	4E31.tmp
864	4E31.tmp
864	4E31.tmp
864	4E31.tmp
864	4E31.tmp
864	4E31.tmp

Suspicious behavior: LoadsDriver 5 IoCs

pid
4
4
4
4
4

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeRestorePrivilege	4656	7zG.exe
Token: 35	4656	7zG.exe
Token: SeSecurityPrivilege	4656	7zG.exe
Token: SeSecurityPrivilege	4656	7zG.exe
Token: SeShutdownPrivilege	3336	rundll32.exe
Token: SeDebugPrivilege	3336	rundll32.exe
Token: SeTcbPrivilege	3336	rundll32.exe
Token: SeDebugPrivilege	864	4E31.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4656	7zG.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1156 wrote to memory of 3336	1156	[email protected]	99
PID 3336 wrote to memory of 5700	3336	rundll32.exe	100
PID 5700 wrote to memory of 5320	5700	cmd.exe	102
PID 3336 wrote to memory of 1284	3336	rundll32.exe	103
PID 3336 wrote to memory of 5512	3336	rundll32.exe	105
PID 3336 wrote to memory of 864	3336	rundll32.exe	107
PID 1284 wrote to memory of 1716	1284	cmd.exe	109
PID 5512 wrote to memory of 4308	5512	cmd.exe	110

C:\Windows\Explorer.exe
C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\[email protected]
1⤵
PID:3452

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:1296

C:\Program Files\7-Zip\7zG.exe
"C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\Desktop\" -an -ai#7zMap25287:106:7zEvent10714
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:4656

C:\Users\Admin\Desktop\[email protected]
"C:\Users\Admin\Desktop\[email protected]"
1⤵
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1156
- C:\Windows\SysWOW64\rundll32.exe
  C:\Windows\system32\rundll32.exe C:\Windows\infpub.dat,#1 15
  2⤵
  - Loads dropped DLL
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3336
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN rhaegal
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5700
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /F /TN rhaegal
      4⤵
      System Location Discovery: System Language Discovery
      PID:5320
- - 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 1070681998 && exit"
    3⤵
    - Executes a command shell one-liner
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1284
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /RU SYSTEM /SC ONSTART /TN rhaegal /TR "C:\Windows\system32\cmd.exe /C Start \"\" \"C:\Windows\dispci.exe\" -id 1070681998 && exit"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:1716
- - 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 04:38:00
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5512
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 04:38:00
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:4308
- - C:\Windows\4E31.tmp
    "C:\Windows\4E31.tmp" \\.\pipe\{51752557-217D-4D5D-B367-2B64F5BDF82B}
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:864

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe
1⤵
PID:4712

C:\Windows\system32\shutdown.exe
C:\Windows\system32\shutdown.exe
1⤵
PID:3600

C:\Windows\cscc.dat
cscc.dat
1⤵
- Executes dropped EXE
PID:5816

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Windows Command Shell

1

T1059.003

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

[email protected]

Path C:\Users\Admin\Desktop\[email protected]
Size 431KB
SHA256 630325cac09ac3fab908f903e3b00d0dadd5fdaa0875ed8496fcbb97a558d0da
MD5 fbbdc39af1139aebba4da004475e8839
SHA1 de5c8d858e6e41da715dca1c019df0bfb92d32c0
SHA512 74eca8c01de215b33d5ceea1fda3f3bef96b513f58a750dba04b0de36f7ef4f7846a6431d52879ca0d8641bfd504d4721a9a96fa2e18c6888fd67fa77686af87
SSDEEP 12288:BHNTywFAvN86pLbqWRKHZKfErrZJyZ0yqsGO3XR63:vT56NbqWRwZaEr3yt2O3XR63
TLSH
T1199412426729EE92D1E1B8F84093E7CC4BB97B090FB991EF9D993485CC79B8319380D5
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

4E31.tmp

Path C:\Windows\4E31.tmp
Size 60KB
SHA256 301b905eb98d8d6bb559c04bbda26628a942b2c4107c07a02e8f753bdcfe347c
MD5 347ac3b6b791054de3e5720a7144a977
SHA1 413eba3973a15c1a6429d9f170f3e8287f98c21c
SHA512 9a399916bc681964af1e1061bc0a8e2926307642557539ad587ce6f9b5ef93bdf1820fe5d7b5ffe5f0bb38e5b4dc6add213ba04048c0c7c264646375fcd01787
SSDEEP 1536:QeRCKjey4TTGLeBYEUW1SIUDoCB449rHUV:KKjey4TTmeBZUGSIUDoCq49oV
TLSH
T1E6536C5A23A441F8E5679231C8B1ED16E7B2B8461370834F02A8C6AB5FB37D19D3C772
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

cscc.dat

Path C:\Windows\cscc.dat
Size 205KB
SHA256 0b2f863f4119dc88a22cc97c0a136c88a0127cb026751303b045f7322a8972f6
MD5 edb72f4a46c39452d1a5414f7d26454a
SHA1 08f94684e83a27f2414f439975b7f8a6d61fc056
SHA512 d62a19436aba8b2d181c065076b4ab54d7d8159d71237f83f1aff8c3d132a80290af39a8142708acb468d78958c64f338ba6ad0cab9fbac001a6a0bddc0e4faa
SSDEEP 3072:zCBsPmcx7BTn/irEsrDUxo2vYsWwYEJOXKVviEWuwlVBgzUMqqDLW+z3AHW5:8sPnBT/irETNWiJOXKVvKBgz3qqDL1zt
TLSH
T19D244D8D91B90494ECA3D0B5DFE98BD1F2273108C399F9E732A695F0A7235D4263DE06
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

infpub.dat

Path C:\Windows\infpub.dat
Size 401KB
SHA256 579fd8a0385482fb4c789561a30b09f25671e86422f40ef5cca2036b28f99648
MD5 1d724f95c61f1055f0d02c2154bbccd3
SHA1 79116fe99f2b421c52ef64097f0f39b815b20907
SHA512 f2d7b018d1516df1c97cfff5507957c75c6d9bf8e2ce52ae0052706f4ec62f13eba6d7be17e6ad2b693fdd58e1fd091c37f17bd2b948cdcd9b95b4ad428c0113
SSDEEP 12288:GtDjvhNTc/cq4RKZZKfArRuSA80m+/6sXRnfPGp:IjTc/cq4RUZaArbInfPGp
TLSH
T11094129332A00072D1B3893025A57B274FBEF5125CA45DEFA9BB19A51DB07C2BE2534F
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3336-8-0x0000000002490000-0x00000000024F8000-memory.dmp

Download

memory/3336-15-0x0000000002490000-0x00000000024F8000-memory.dmp

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memory/3336-18-0x0000000002490000-0x00000000024F8000-memory.dmp

Download

memory/5816-43-0x0000000000010000-0x0000000000047000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads