badrabbit | 630325cac09ac3fab908f903e3b00d0dadd5fdaa0875ed8496fcbb97a558d0da

Analysis

max time kernel
148s
max time network
182s
platform
windows7_x64
resource
win7v20210410
submitted
01-07-2021 06:58

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General

Target

Nord_VPN.exe
Size

431KB
MD5

fbbdc39af1139aebba4da004475e8839
SHA1

de5c8d858e6e41da715dca1c019df0bfb92d32c0
SHA256

630325cac09ac3fab908f903e3b00d0dadd5fdaa0875ed8496fcbb97a558d0da
SHA512

74eca8c01de215b33d5ceea1fda3f3bef96b513f58a750dba04b0de36f7ef4f7846a6431d52879ca0d8641bfd504d4721a9a96fa2e18c6888fd67fa77686af87

Score

10^/10

badrabbit ransomware

Malware Config

Signatures

BadRabbit
Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.
ransomware badrabbit

Executes dropped EXE 1 IoCs

pid	Process
1476	9991.tmp

Drops file in Windows directory 5 IoCs

description	ioc	Process
File created	C:\Windows\cscc.dat	rundll32.exe
File created	C:\Windows\dispci.exe	rundll32.exe
File opened for modification	C:\Windows\9991.tmp	rundll32.exe
File created	C:\Windows\infpub.dat	Nord_VPN.exe
File opened for modification	C:\Windows\infpub.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.

persistence

Scheduled Task

T1053

pid	Process
760	schtasks.exe
1092	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1360	rundll32.exe
1360	rundll32.exe
1476	9991.tmp
1476	9991.tmp
1476	9991.tmp
1476	9991.tmp
1476	9991.tmp

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1360	rundll32.exe
Token: SeDebugPrivilege	1360	rundll32.exe
Token: SeTcbPrivilege	1360	rundll32.exe
Token: SeDebugPrivilege	1476	9991.tmp

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 1072 wrote to memory of 1360	1072	Nord_VPN.exe	27
PID 1072 wrote to memory of 1360	1072	Nord_VPN.exe	27
PID 1072 wrote to memory of 1360	1072	Nord_VPN.exe	27
PID 1072 wrote to memory of 1360	1072	Nord_VPN.exe	27
PID 1072 wrote to memory of 1360	1072	Nord_VPN.exe	27
PID 1072 wrote to memory of 1360	1072	Nord_VPN.exe	27
PID 1072 wrote to memory of 1360	1072	Nord_VPN.exe	27
PID 1360 wrote to memory of 1400	1360	rundll32.exe	31
PID 1360 wrote to memory of 1400	1360	rundll32.exe	31
PID 1360 wrote to memory of 1400	1360	rundll32.exe	31
PID 1360 wrote to memory of 1400	1360	rundll32.exe	31
PID 1400 wrote to memory of 1632	1400	cmd.exe	33
PID 1400 wrote to memory of 1632	1400	cmd.exe	33
PID 1400 wrote to memory of 1632	1400	cmd.exe	33
PID 1400 wrote to memory of 1632	1400	cmd.exe	33
PID 1360 wrote to memory of 268	1360	rundll32.exe	34
PID 1360 wrote to memory of 268	1360	rundll32.exe	34
PID 1360 wrote to memory of 268	1360	rundll32.exe	34
PID 1360 wrote to memory of 268	1360	rundll32.exe	34
PID 268 wrote to memory of 760	268	cmd.exe	36
PID 268 wrote to memory of 760	268	cmd.exe	36
PID 268 wrote to memory of 760	268	cmd.exe	36
PID 268 wrote to memory of 760	268	cmd.exe	36
PID 1360 wrote to memory of 892	1360	rundll32.exe	37
PID 1360 wrote to memory of 892	1360	rundll32.exe	37
PID 1360 wrote to memory of 892	1360	rundll32.exe	37
PID 1360 wrote to memory of 892	1360	rundll32.exe	37
PID 1360 wrote to memory of 1476	1360	rundll32.exe	39
PID 1360 wrote to memory of 1476	1360	rundll32.exe	39
PID 1360 wrote to memory of 1476	1360	rundll32.exe	39
PID 1360 wrote to memory of 1476	1360	rundll32.exe	39
PID 892 wrote to memory of 1092	892	cmd.exe	41
PID 892 wrote to memory of 1092	892	cmd.exe	41
PID 892 wrote to memory of 1092	892	cmd.exe	41
PID 892 wrote to memory of 1092	892	cmd.exe	41

C:\Users\Admin\AppData\Local\Temp\Nord_VPN.exe
"C:\Users\Admin\AppData\Local\Temp\Nord_VPN.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1072
- C:\Windows\SysWOW64\rundll32.exe
  C:\Windows\system32\rundll32.exe C:\Windows\infpub.dat,#1 15
  2⤵
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1360
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN rhaegal
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1400
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /F /TN rhaegal
      4⤵
      PID:1632
- - 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 4015444379 && exit"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:268
  - - 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 4015444379 && exit"
      4⤵
      Creates scheduled task(s)
      PID:760
- - 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 07:13:00
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:892
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 07:13:00
      4⤵
      Creates scheduled task(s)
      PID:1092
- - C:\Windows\9991.tmp
    "C:\Windows\9991.tmp" \\.\pipe\{0B364221-92BA-4ECB-A97B-C70B40A2398A}
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1476

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1072-59-0x00000000752F1000-0x00000000752F3000-memory.dmp

Filesize
8KB

Download
memory/1360-63-0x00000000004B0000-0x0000000000518000-memory.dmp

Filesize
416KB

Download
memory/1360-68-0x00000000004B0000-0x0000000000518000-memory.dmp

Filesize
416KB

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