111aa30a320d763f875d21e66345c86e8580ccbe0d50e99733991caff1d2201b

General

Target

B7F0467EA05CDB14EEA0F67FD09E8BC6.exe
Size

78KB
MD5

b7f0467ea05cdb14eea0f67fd09e8bc6
SHA1

231ee0739e614251bc3d648885c77f6f8d0cbd58
SHA256

111aa30a320d763f875d21e66345c86e8580ccbe0d50e99733991caff1d2201b
SHA512

21fb8ab40f31987ebf977983012035d29034471c0f84779a636857e9a52110856155bc6ead9ac2e34dc29cbdee82c98941e4eafa4c7f73dac01b65b76c26ac97
SSDEEP

1536:d6zKpOqlUTuWJR5UpJN6almL4REvOWTt0BO5FHBas9hhQ0YH:0zOOqeSQLUpJNflJEWWp0Q5z59hm7H

Score

7^/10

discovery execution upx

Malware Config

Signatures

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2752-13-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2752-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2752-10-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2752-9-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2752-18-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2688	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3040 set thread context of 2752	3040	B7F0467EA05CDB14EEA0F67FD09E8BC6.exe	33

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2800	2752	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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	B7F0467EA05CDB14EEA0F67FD09E8BC6.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2688	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2688	powershell.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3040 wrote to memory of 2688	3040	B7F0467EA05CDB14EEA0F67FD09E8BC6.exe	31
PID 3040 wrote to memory of 2688	3040	B7F0467EA05CDB14EEA0F67FD09E8BC6.exe	31
PID 3040 wrote to memory of 2688	3040	B7F0467EA05CDB14EEA0F67FD09E8BC6.exe	31
PID 3040 wrote to memory of 2688	3040	B7F0467EA05CDB14EEA0F67FD09E8BC6.exe	31
PID 3040 wrote to memory of 2752	3040	B7F0467EA05CDB14EEA0F67FD09E8BC6.exe	33
PID 3040 wrote to memory of 2752	3040	B7F0467EA05CDB14EEA0F67FD09E8BC6.exe	33
PID 3040 wrote to memory of 2752	3040	B7F0467EA05CDB14EEA0F67FD09E8BC6.exe	33
PID 3040 wrote to memory of 2752	3040	B7F0467EA05CDB14EEA0F67FD09E8BC6.exe	33
PID 3040 wrote to memory of 2752	3040	B7F0467EA05CDB14EEA0F67FD09E8BC6.exe	33
PID 3040 wrote to memory of 2752	3040	B7F0467EA05CDB14EEA0F67FD09E8BC6.exe	33
PID 3040 wrote to memory of 2752	3040	B7F0467EA05CDB14EEA0F67FD09E8BC6.exe	33
PID 3040 wrote to memory of 2752	3040	B7F0467EA05CDB14EEA0F67FD09E8BC6.exe	33
PID 3040 wrote to memory of 2752	3040	B7F0467EA05CDB14EEA0F67FD09E8BC6.exe	33
PID 3040 wrote to memory of 2752	3040	B7F0467EA05CDB14EEA0F67FD09E8BC6.exe	33
PID 3040 wrote to memory of 2752	3040	B7F0467EA05CDB14EEA0F67FD09E8BC6.exe	33
PID 2752 wrote to memory of 2800	2752	RegAsm.exe	34
PID 2752 wrote to memory of 2800	2752	RegAsm.exe	34
PID 2752 wrote to memory of 2800	2752	RegAsm.exe	34
PID 2752 wrote to memory of 2800	2752	RegAsm.exe	34

C:\Users\Admin\AppData\Local\Temp\B7F0467EA05CDB14EEA0F67FD09E8BC6.exe
"C:\Users\Admin\AppData\Local\Temp\B7F0467EA05CDB14EEA0F67FD09E8BC6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3040
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Remove-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name '';New-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name '' -Value '"C:\Users\Admin\AppData\Roaming\.exe"' -PropertyType 'String'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2688
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2752
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2752 -s 252
    3⤵
    - Program crash
    PID:2800

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 Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2752-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2752-10-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2752-18-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2752-7-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2752-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2752-9-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2752-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3040-1-0x0000000001210000-0x000000000122A000-memory.dmp

Filesize
104KB

Download
memory/3040-5-0x0000000000450000-0x0000000000468000-memory.dmp

Filesize
96KB

Download
memory/3040-0-0x00000000744EE000-0x00000000744EF000-memory.dmp

Filesize
4KB

Download
memory/3040-4-0x00000000744E0000-0x0000000074BCE000-memory.dmp

Filesize
6.9MB

Download
memory/3040-3-0x00000000744EE000-0x00000000744EF000-memory.dmp

Filesize
4KB

Download
memory/3040-16-0x00000000744E0000-0x0000000074BCE000-memory.dmp

Filesize
6.9MB

Download
memory/3040-2-0x00000000744E0000-0x0000000074BCE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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