xworm | 712ef7d45f2b83115c88d5394ebc16f65acf9865cb63d2d58aad3101bffd7042

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions	Virus.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

defense_evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\VMware, Inc.\VMware Tools	Virus.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Virus.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Virus.exe

Checks computer location settings 2 TTPs 5 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3054922120-1500138384-519748408-1000\Control Panel\International\Geo\Nation	Viurs ByDRX1 ALHB Group.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3054922120-1500138384-519748408-1000\Control Panel\International\Geo\Nation	Virus.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3054922120-1500138384-519748408-1000\Control Panel\International\Geo\Nation	Naيببشمي.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3054922120-1500138384-519748408-1000\Control Panel\International\Geo\Nation	XClient.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3054922120-1500138384-519748408-1000\Control Panel\International\Geo\Nation	zquflw.exe

Executes dropped EXE 6 IoCs

pid	Process
3836	zquflw.exe
4684	Naيببشمي.exe
1380	Viurs ByDRX1 ALHB Group.exe
1108	Virus.exe
216	Viurs DRX1.exe
2564	Virus REvi DRX1.exe

Loads dropped DLL 1 IoCs

pid	Process
1108	Virus.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Virus.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	Virus.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	Viurs DRX1.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
4524	5012	WerFault.exe	94

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	Viurs DRX1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Virus REvi DRX1.exe

Modifies registry class 64 IoCs

description	ioc	Process
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.heic\ShellEx	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.lnk	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.ods	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.ogx\ShellEx\{BB2E617C-0920-11D1-9A0B-00C04FC2D6C1}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.wiz	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.ans	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.blg	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.M2T\ShellEx	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.odcdatabasefile	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.pxn\ShellEx\{e357fccd-a995-4576-b01f-234630154e96}	reg.exe
Key deleted	\REGISTRY\USER\S-1-5-21-3054922120-1500138384-519748408-1000_Classes\ActivatableClasses\Package\c5e2524a-ea46-4f67-841f-6a9465d9d515_10.0.19041.4239_neutral_neutral_cw5n1h2txyewy	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.3gpp\ShellEx\{BB2E617C-0920-11D1-9A0B-00C04FC2D6C1}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.fdf\AcroExch.FDFDoc\ShellNew	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.m4b\ShellEx	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.m4v\ShellEx\{BB2E617C-0920-11D1-9A0B-00C04FC2D6C1}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.mk3d\OpenWithProgIds	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.tgz	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\acrobat	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\AcroExch.acrobatsecuritysettings.1\shell\Open\command	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.cur\PersistentHandler	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.iso\OpenWithProgids	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.vst	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\AcroExch.pdfxml.1\shell\Printto	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\AcroExch.XDPDoc\CLSID	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\AcroExch.XDPDoc\shell\Print	reg.exe
Key deleted	\REGISTRY\USER\S-1-5-21-3054922120-1500138384-519748408-1000_Classes\ActivatableClasses\Package\Microsoft.MicrosoftEdge.Stable_139.0.3405.125_neutral__8wekyb3d8bbwe	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.htx\PersistentHandler	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.mpe\PersistentHandler	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.srf\ShellEx\{e357fccd-a995-4576-b01f-234630154e96}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.uxdc	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.webp	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\AcroExch.pdfxml	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\notepad.exe	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.jxr\OpenWithProgids	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.vdw\shellex\{8895b1c6-b41f-4c1c-a562-0d564250836f}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.vspscc	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.erf\ShellEx\{e357fccd-a995-4576-b01f-234630154e96}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.mpeg\OpenWithProgIds	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.vdx	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\AdHocReportingExcelClientLib.AdHocReportingExcelClientAddIn	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.det	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.mpv2\ShellEx\{BB2E617C-0920-11D1-9A0B-00C04FC2D6C1}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.vsx	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.wri	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\AcroExch.FDFDoc\shell\Print\command	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.cgm\PersistentHandler	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.eps\PersistentHandler	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.etp	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.hhc	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.lnk\ShellNew	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.xlthtml	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.cc\PersistentHandler	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.crtx	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.gif	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.mpeg	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.ogv\ShellEx\{e357fccd-a995-4576-b01f-234630154e96}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.rqy	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.thmx\ShellEx\{BB2E617C-0920-11d1-9A0B-00C04FC2D6C1}	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.wax	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.ape	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.group	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.ram	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.sbr\PersistentHandler	reg.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\.ttf\PersistentHandler	reg.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2980	XClient.exe
Token: SeDebugPrivilege	2564	Virus REvi DRX1.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2980 wrote to memory of 3836	2980	XClient.exe	84
PID 3836 wrote to memory of 4684	3836	zquflw.exe	85
PID 3836 wrote to memory of 1380	3836	zquflw.exe	86
PID 3836 wrote to memory of 1108	3836	zquflw.exe	87
PID 1380 wrote to memory of 216	1380	Viurs ByDRX1 ALHB Group.exe	89
PID 1108 wrote to memory of 2564	1108	Virus.exe	90
PID 4684 wrote to memory of 4152	4684	Naيببشمي.exe	91
PID 4152 wrote to memory of 2488	4152	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2980
- C:\Users\Admin\AppData\Local\Temp\zquflw.exe
  "C:\Users\Admin\AppData\Local\Temp\zquflw.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:3836
- - C:\Users\Admin\AppData\Roaming\Naيببشمي.exe
    "C:\Users\Admin\AppData\Roaming\Naيببشمي.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:4684
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /k reg delete HKCR /f
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4152
    - - C:\Windows\system32\reg.exe
        
        reg delete HKCR /f
        5⤵
        Modifies registry class
        
        PID:2488
- - C:\Users\Admin\AppData\Roaming\Viurs ByDRX1 ALHB Group.exe
    "C:\Users\Admin\AppData\Roaming\Viurs ByDRX1 ALHB Group.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:1380
  - - C:\Users\Admin\AppData\Local\Temp\Viurs DRX1.exe
      "C:\Users\Admin\AppData\Local\Temp\Viurs DRX1.exe"
      4⤵
      Executes dropped EXE
      Writes to the Master Boot Record (MBR)
      System Location Discovery: System Language Discovery
      PID:216
- - C:\Users\Admin\AppData\Roaming\Virus.exe
    "C:\Users\Admin\AppData\Roaming\Virus.exe"
    3⤵
    - Looks for VirtualBox Guest Additions in registry
    - Looks for VMWare Tools registry key
    - Checks BIOS information in registry
    - Checks computer location settings
    - Executes dropped EXE
    - Loads dropped DLL
    - Maps connected drives based on registry
    - Suspicious use of WriteProcessMemory
    PID:1108
  - - C:\Users\Admin\AppData\Local\Temp\Virus REvi DRX1.exe
      "C:\Users\Admin\AppData\Local\Temp\Virus REvi DRX1.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:2564
    - - C:\Users\Admin\AppData\Local\Temp\Virus REvi DRX1.exe
        
        "C:\Users\Admin\AppData\Local\Temp\Virus REvi DRX1.exe"
        5⤵
        
        PID:5012
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 5012 -s 1384
        6⤵
        Program crash
        
        PID:4524

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x434 0x2f4
1⤵
PID:792

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 380 -p 5012 -ip 5012
1⤵
PID:3848

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

Virtualization/Sandbox Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion