6b91466579539adc42dc031b57738db996ad8fbc9d4e8b470150d3018fcc3236

General

Target

6b91466579539adc42dc031b57738db996ad8fbc9d4e8b470150d3018fcc3236N.exe
Size

610KB
MD5

533105c0a25d543a435c301ce8489070
SHA1

8f6c93600623b4c05eff704d05b1894964791acd
SHA256

6b91466579539adc42dc031b57738db996ad8fbc9d4e8b470150d3018fcc3236
SHA512

ba526cac279cca384b487b9c368ff53c9456feb0846441cdee9683031c0b57ee6e6879c8aaf408ce259411ccfcd5cd9687eb01c9f8827e21133c3822b99dd424
SSDEEP

12288:jATuTAnKGwUAW3ycQqgYo3CyWoKEY3ZQi7gfqOuuh+c:BT+KjUdQqboyyWoK1NGqzuhj

Score

3^/10

discovery

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2456	3892	WerFault.exe	102
3868	1136	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 2 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	6b91466579539adc42dc031b57738db996ad8fbc9d4e8b470150d3018fcc3236N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@%SystemRoot%\system32\hnetcfgclient.dll,-201 = "HNetCfg Client"	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1136	6b91466579539adc42dc031b57738db996ad8fbc9d4e8b470150d3018fcc3236N.exe
1136	6b91466579539adc42dc031b57738db996ad8fbc9d4e8b470150d3018fcc3236N.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3432	Explorer.EXE
Token: SeCreatePagefilePrivilege	3432	Explorer.EXE
Token: SeShutdownPrivilege	3432	Explorer.EXE
Token: SeCreatePagefilePrivilege	3432	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3892	winver.exe
1136	6b91466579539adc42dc031b57738db996ad8fbc9d4e8b470150d3018fcc3236N.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1136 wrote to memory of 3892	1136	6b91466579539adc42dc031b57738db996ad8fbc9d4e8b470150d3018fcc3236N.exe	102
PID 1136 wrote to memory of 3892	1136	6b91466579539adc42dc031b57738db996ad8fbc9d4e8b470150d3018fcc3236N.exe	102
PID 1136 wrote to memory of 3892	1136	6b91466579539adc42dc031b57738db996ad8fbc9d4e8b470150d3018fcc3236N.exe	102
PID 1136 wrote to memory of 3892	1136	6b91466579539adc42dc031b57738db996ad8fbc9d4e8b470150d3018fcc3236N.exe	102
PID 3892 wrote to memory of 3432	3892	winver.exe	56
PID 1136 wrote to memory of 3432	1136	6b91466579539adc42dc031b57738db996ad8fbc9d4e8b470150d3018fcc3236N.exe	56
PID 1136 wrote to memory of 2852	1136	6b91466579539adc42dc031b57738db996ad8fbc9d4e8b470150d3018fcc3236N.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2852

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3432
- C:\Users\Admin\AppData\Local\Temp\6b91466579539adc42dc031b57738db996ad8fbc9d4e8b470150d3018fcc3236N.exe
  "C:\Users\Admin\AppData\Local\Temp\6b91466579539adc42dc031b57738db996ad8fbc9d4e8b470150d3018fcc3236N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1136
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:3892
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3892 -s 300
      4⤵
      Program crash
      PID:2456
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1136 -s 928
    3⤵
    - Program crash
    PID:3868

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:4988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3892 -ip 3892
1⤵
PID:1792

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 1136 -ip 1136
1⤵
PID:3312

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1136-8-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1136-1-0x00000000046D0000-0x0000000004D28000-memory.dmp

Filesize
6.3MB

Download
memory/1136-3-0x00000000024B0000-0x00000000024B1000-memory.dmp

Filesize
4KB

Download
memory/1136-4-0x00000000046D0000-0x0000000004D28000-memory.dmp

Filesize
6.3MB

Download
memory/1136-2-0x00000000024B0000-0x00000000024B1000-memory.dmp

Filesize
4KB

Download
memory/1136-11-0x0000000005BE0000-0x00000000065E0000-memory.dmp

Filesize
10.0MB

Download
memory/1136-16-0x0000000005BE0000-0x00000000065E0000-memory.dmp

Filesize
10.0MB

Download
memory/1136-20-0x00000000046D0000-0x0000000004D28000-memory.dmp

Filesize
6.3MB

Download
memory/2852-15-0x0000000000020000-0x0000000000026000-memory.dmp

Filesize
24KB

Download
memory/2852-21-0x0000000000020000-0x0000000000026000-memory.dmp

Filesize
24KB

Download
memory/3432-6-0x0000000000AA0000-0x0000000000AA6000-memory.dmp

Filesize
24KB

Download
memory/3432-7-0x0000000000AA0000-0x0000000000AA6000-memory.dmp

Filesize
24KB

Download
memory/3432-12-0x0000000000B40000-0x0000000000B46000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing