bfe7a3d3d916adecd7f566353e38d7024742edc4743e2a3af5edc44636cd5387

Analysis

max time kernel
91s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
03/10/2022, 08:18

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General

Target

bfe7a3d3d916adecd7f566353e38d7024742edc4743e2a3af5edc44636cd5387.dll
Size

741KB
MD5

34f9b98d34ad196f831cd63d5d122bf5
SHA1

e8d4e378b54664f77200a48ba5022600c3bc13a6
SHA256

bfe7a3d3d916adecd7f566353e38d7024742edc4743e2a3af5edc44636cd5387
SHA512

f01bcc4bc50c15307e58de5e12a79f015e1259575725d058bad5bd3d22073ca2cc646b5dfda8b86b3a32f6ef095fae91c1241c54abae70940c665e08d0566ac3
SSDEEP

3072:+ONuMKQg2WX6UoAAFmfiTx7MH6t5DlCQBl/j9ISdPAmLbONu:+OWWUoAYm6Tx72y5Bpj9jAYbO

Score

8^/10

persistence

Malware Config

Signatures

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SENS\Parameters\ServiceDll = "C:\\PROGRA~3\\ebxarjniebx.dat"	rundll32.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File created	C:\PROGRA~3\ebxarjniebx.dat	rundll32.exe
File opened for modification	C:\PROGRA~3\ebxarjniebx.dat	rundll32.exe
File created	C:\PROGRA~3\xbeinjraxbe.dat	rundll32.exe
File opened for modification	C:\PROGRA~3\xbeinjraxbe.dat	rundll32.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Registration\{02D4B3F1-FD88-11D1-960D-00805FC79235}.{C916B019-77F5-41A6-8555-47E6AA9A013E}.crmlog	dllhost.exe
File opened for modification	C:\Windows\Registration\{02D4B3F1-FD88-11D1-960D-00805FC79235}.{C916B019-77F5-41A6-8555-47E6AA9A013E}.crmlog	dllhost.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
624	rundll32.exe
624	rundll32.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	624	rundll32.exe
Token: SeDebugPrivilege	624	rundll32.exe
Token: SeDebugPrivilege	624	rundll32.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2264 wrote to memory of 624	2264	rundll32.exe	83
PID 2264 wrote to memory of 624	2264	rundll32.exe	83
PID 2264 wrote to memory of 624	2264	rundll32.exe	83
PID 624 wrote to memory of 792	624	rundll32.exe	82
PID 624 wrote to memory of 1096	624	rundll32.exe	88
PID 624 wrote to memory of 1096	624	rundll32.exe	88
PID 624 wrote to memory of 1096	624	rundll32.exe	88
PID 1096 wrote to memory of 4992	1096	cmd.exe	90
PID 1096 wrote to memory of 4992	1096	cmd.exe	90
PID 1096 wrote to memory of 4992	1096	cmd.exe	90
PID 4992 wrote to memory of 908	4992	net.exe	91
PID 4992 wrote to memory of 908	4992	net.exe	91
PID 4992 wrote to memory of 908	4992	net.exe	91
PID 624 wrote to memory of 3824	624	rundll32.exe	93
PID 624 wrote to memory of 3824	624	rundll32.exe	93
PID 624 wrote to memory of 3824	624	rundll32.exe	93
PID 3824 wrote to memory of 4584	3824	cmd.exe	96
PID 3824 wrote to memory of 4584	3824	cmd.exe	96
PID 3824 wrote to memory of 4584	3824	cmd.exe	96
PID 4584 wrote to memory of 4632	4584	net.exe	97
PID 4584 wrote to memory of 4632	4584	net.exe	97
PID 4584 wrote to memory of 4632	4584	net.exe	97

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bfe7a3d3d916adecd7f566353e38d7024742edc4743e2a3af5edc44636cd5387.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2264
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bfe7a3d3d916adecd7f566353e38d7024742edc4743e2a3af5edc44636cd5387.dll,#1
  2⤵
  - Sets DLL path for service in the registry
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:624
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c net start COMSysApp
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1096
  - - C:\Windows\SysWOW64\net.exe
      net start COMSysApp
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4992
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 start COMSysApp
        5⤵
        
        PID:908
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c net start SENS
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3824
  - - C:\Windows\SysWOW64\net.exe
      net start SENS
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4584
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 start SENS
        5⤵
        
        PID:4632

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch -p
1⤵
PID:792

C:\Windows\system32\dllhost.exe
C:\Windows\system32\dllhost.exe /Processid:{02D4B3F1-FD88-11D1-960D-00805FC79235}
1⤵
- Drops file in Windows directory
PID:2812

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p -s Themes
1⤵
PID:1324

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/624-133-0x0000000002280000-0x00000000022A8000-memory.dmp

Filesize
160KB

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