amadey | bfe814222131996f9a1d81515c404d51d237107a3f6013a066da162b58ee4b51

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	17e1a0b31f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	17e1a0b31f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	17e1a0b31f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	17e1a0b31f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	17e1a0b31f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	17e1a0b31f.exe

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Stealc family
stealc

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 4 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	17e1a0b31f.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	bfe814222131996f9a1d81515c404d51d237107a3f6013a066da162b58ee4b51.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	axplong.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	ec97abf145.exe

Downloads MZ/PE file

Checks BIOS information in registry 2 TTPs 8 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	axplong.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	axplong.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	ec97abf145.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	ec97abf145.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	17e1a0b31f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	17e1a0b31f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	bfe814222131996f9a1d81515c404d51d237107a3f6013a066da162b58ee4b51.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	bfe814222131996f9a1d81515c404d51d237107a3f6013a066da162b58ee4b51.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\lbroker.vbs	Ixpla.exe

Executes dropped EXE 5 IoCs

pid	Process
760	axplong.exe
2408	Ixpla.exe
3324	networkmanager.exe
4488	ec97abf145.exe
4748	17e1a0b31f.exe

Identifies Wine through registry keys 2 TTPs 4 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Wine	bfe814222131996f9a1d81515c404d51d237107a3f6013a066da162b58ee4b51.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Wine	axplong.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Wine	ec97abf145.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Wine	17e1a0b31f.exe

Loads dropped DLL 14 IoCs

pid	Process
2296	bfe814222131996f9a1d81515c404d51d237107a3f6013a066da162b58ee4b51.exe
2296	bfe814222131996f9a1d81515c404d51d237107a3f6013a066da162b58ee4b51.exe
760	axplong.exe
760	axplong.exe
760	axplong.exe
760	axplong.exe
760	axplong.exe
760	axplong.exe
760	axplong.exe
5104	WerFault.exe
5104	WerFault.exe
5104	WerFault.exe
5104	WerFault.exe
5104	WerFault.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features	17e1a0b31f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	17e1a0b31f.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\ec97abf145.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1006190001\\ec97abf145.exe"	axplong.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\17e1a0b31f.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1006191001\\17e1a0b31f.exe"	axplong.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
2296	bfe814222131996f9a1d81515c404d51d237107a3f6013a066da162b58ee4b51.exe
760	axplong.exe
4488	ec97abf145.exe
4748	17e1a0b31f.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x00050000000195c2-539.dat	upx
behavioral1/memory/3324-555-0x0000000000800000-0x0000000000F7B000-memory.dmp	upx
behavioral1/memory/3324-672-0x0000000000800000-0x0000000000F7B000-memory.dmp	upx

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\axplong.job	bfe814222131996f9a1d81515c404d51d237107a3f6013a066da162b58ee4b51.exe

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
5104	2408	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 5 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	17e1a0b31f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bfe814222131996f9a1d81515c404d51d237107a3f6013a066da162b58ee4b51.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	axplong.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ixpla.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ec97abf145.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2296	bfe814222131996f9a1d81515c404d51d237107a3f6013a066da162b58ee4b51.exe
760	axplong.exe
4488	ec97abf145.exe
4748	17e1a0b31f.exe
4748	17e1a0b31f.exe
4748	17e1a0b31f.exe
2408	Ixpla.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2408	Ixpla.exe
Token: SeDebugPrivilege	4748	17e1a0b31f.exe
Token: SeDebugPrivilege	2408	Ixpla.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2296	bfe814222131996f9a1d81515c404d51d237107a3f6013a066da162b58ee4b51.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 760	2296	bfe814222131996f9a1d81515c404d51d237107a3f6013a066da162b58ee4b51.exe	28
PID 2296 wrote to memory of 760	2296	bfe814222131996f9a1d81515c404d51d237107a3f6013a066da162b58ee4b51.exe	28
PID 2296 wrote to memory of 760	2296	bfe814222131996f9a1d81515c404d51d237107a3f6013a066da162b58ee4b51.exe	28
PID 2296 wrote to memory of 760	2296	bfe814222131996f9a1d81515c404d51d237107a3f6013a066da162b58ee4b51.exe	28
PID 760 wrote to memory of 2408	760	axplong.exe	30
PID 760 wrote to memory of 2408	760	axplong.exe	30
PID 760 wrote to memory of 2408	760	axplong.exe	30
PID 760 wrote to memory of 2408	760	axplong.exe	30
PID 760 wrote to memory of 3324	760	axplong.exe	31
PID 760 wrote to memory of 3324	760	axplong.exe	31
PID 760 wrote to memory of 3324	760	axplong.exe	31
PID 760 wrote to memory of 3324	760	axplong.exe	31
PID 760 wrote to memory of 4488	760	axplong.exe	32
PID 760 wrote to memory of 4488	760	axplong.exe	32
PID 760 wrote to memory of 4488	760	axplong.exe	32
PID 760 wrote to memory of 4488	760	axplong.exe	32
PID 760 wrote to memory of 4748	760	axplong.exe	33
PID 760 wrote to memory of 4748	760	axplong.exe	33
PID 760 wrote to memory of 4748	760	axplong.exe	33
PID 760 wrote to memory of 4748	760	axplong.exe	33
PID 2408 wrote to memory of 5104	2408	Ixpla.exe	36
PID 2408 wrote to memory of 5104	2408	Ixpla.exe	36
PID 2408 wrote to memory of 5104	2408	Ixpla.exe	36
PID 2408 wrote to memory of 5104	2408	Ixpla.exe	36

C:\Users\Admin\AppData\Local\Temp\bfe814222131996f9a1d81515c404d51d237107a3f6013a066da162b58ee4b51.exe
"C:\Users\Admin\AppData\Local\Temp\bfe814222131996f9a1d81515c404d51d237107a3f6013a066da162b58ee4b51.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2296
- C:\Users\Admin\AppData\Local\Temp\44111dbc49\axplong.exe
  "C:\Users\Admin\AppData\Local\Temp\44111dbc49\axplong.exe"
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Identifies Wine through registry keys
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:760
- - C:\Users\Admin\AppData\Local\Temp\1006092001\Ixpla.exe
    "C:\Users\Admin\AppData\Local\Temp\1006092001\Ixpla.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2408
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2408 -s 632
      4⤵
      Loads dropped DLL
      Program crash
      PID:5104
- - C:\Users\Admin\AppData\Local\Temp\1006141001\networkmanager.exe
    "C:\Users\Admin\AppData\Local\Temp\1006141001\networkmanager.exe"
    3⤵
    - Executes dropped EXE
    PID:3324
- - C:\Users\Admin\AppData\Local\Temp\1006190001\ec97abf145.exe
    "C:\Users\Admin\AppData\Local\Temp\1006190001\ec97abf145.exe"
    3⤵
    - Identifies VirtualBox via ACPI registry values (likely anti-VM)
    - Checks BIOS information in registry
    - Executes dropped EXE
    - Identifies Wine through registry keys
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:4488
- - C:\Users\Admin\AppData\Local\Temp\1006191001\17e1a0b31f.exe
    "C:\Users\Admin\AppData\Local\Temp\1006191001\17e1a0b31f.exe"
    3⤵
    - Modifies Windows Defender Real-time Protection settings
    - Identifies VirtualBox via ACPI registry values (likely anti-VM)
    - Checks BIOS information in registry
    - Executes dropped EXE
    - Identifies Wine through registry keys
    - Windows security modification
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

Virtualization/Sandbox Evasion

Credential Access

Discovery

Query Registry

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion