4cf6420a44a75abd889dbccbbce49eab540bcd2ee7c8a75346ee6c910a98c6d2

General

Target

MSCU5149009.exe
Size

772KB
MD5

aab0120a6b51c6ed13d3898a39873fad
SHA1

6170878e2a3c856a0eaa18c7e5794d09f447bfb5
SHA256

5c07ec6bee1771f53b2c52e01e8b2531c8991a71f927596cfccab590b7baffc0
SHA512

95af02a56cc7c5e2b082b7939ac4430857c26bafc92a84e07ad88a8ba964212b8aa3b3dfa007b49fcd12a0c33052245d4192fa9bd693f9a2985fb31d8621c893
SSDEEP

12288:kS8Vuk89Q7upy9iiRZYbfqa2uVpElpTcTkfq+OoRFPvz8q+zs0R6:0AD9UZYrqa5Gs2FXz8ho

Score

8^/10

discovery execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1060	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2704 set thread context of 2480	2704	MSCU5149009.exe	33

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2908	2480	WerFault.exe	33

System Location Discovery: System Language Discovery 1 TTPs 3 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	MSCU5149009.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSCU5149009.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1060	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1060	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2704 wrote to memory of 1060	2704	MSCU5149009.exe	31
PID 2704 wrote to memory of 1060	2704	MSCU5149009.exe	31
PID 2704 wrote to memory of 1060	2704	MSCU5149009.exe	31
PID 2704 wrote to memory of 1060	2704	MSCU5149009.exe	31
PID 2704 wrote to memory of 2480	2704	MSCU5149009.exe	33
PID 2704 wrote to memory of 2480	2704	MSCU5149009.exe	33
PID 2704 wrote to memory of 2480	2704	MSCU5149009.exe	33
PID 2704 wrote to memory of 2480	2704	MSCU5149009.exe	33
PID 2704 wrote to memory of 2480	2704	MSCU5149009.exe	33
PID 2704 wrote to memory of 2480	2704	MSCU5149009.exe	33
PID 2704 wrote to memory of 2480	2704	MSCU5149009.exe	33
PID 2480 wrote to memory of 2908	2480	MSCU5149009.exe	34
PID 2480 wrote to memory of 2908	2480	MSCU5149009.exe	34
PID 2480 wrote to memory of 2908	2480	MSCU5149009.exe	34
PID 2480 wrote to memory of 2908	2480	MSCU5149009.exe	34

C:\Users\Admin\AppData\Local\Temp\MSCU5149009.exe
"C:\Users\Admin\AppData\Local\Temp\MSCU5149009.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2704
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\MSCU5149009.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1060
- C:\Users\Admin\AppData\Local\Temp\MSCU5149009.exe
  "C:\Users\Admin\AppData\Local\Temp\MSCU5149009.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2480
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2480 -s 36
    3⤵
    - Program crash
    PID:2908

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

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/2480-8-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download
memory/2480-10-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download
memory/2480-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2480-13-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download
memory/2704-3-0x00000000006C0000-0x00000000006DE000-memory.dmp

Filesize
120KB

Download
memory/2704-5-0x0000000073FB0000-0x000000007469E000-memory.dmp

Filesize
6.9MB

Download
memory/2704-6-0x00000000003F0000-0x0000000000406000-memory.dmp

Filesize
88KB

Download
memory/2704-7-0x0000000005DB0000-0x0000000005E3E000-memory.dmp

Filesize
568KB

Download
memory/2704-4-0x0000000073FBE000-0x0000000073FBF000-memory.dmp

Filesize
4KB

Download
memory/2704-0-0x0000000073FBE000-0x0000000073FBF000-memory.dmp

Filesize
4KB

Download
memory/2704-2-0x0000000073FB0000-0x000000007469E000-memory.dmp

Filesize
6.9MB

Download
memory/2704-1-0x0000000000A30000-0x0000000000AF6000-memory.dmp

Filesize
792KB

Download
memory/2704-14-0x0000000073FB0000-0x000000007469E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing