cryptbot | ac39195bc9a3f97ab72f608ba7e86c79b9de337862e290d7d00ba5e0aaf23ac7

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	Download.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	DowloadX.exe

Blocklisted process makes network request 3 IoCs

flow	pid	Process
2	6048	CScript.exe
6	6048	CScript.exe
8	6048	CScript.exe

Checks BIOS information in registry 2 TTPs 4 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	Download.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Download.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	DowloadX.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	DowloadX.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-3027557611-1484967174-339164627-1000\Control Panel\International\Geo\Nation	DowloadX.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\Control Panel\International\Geo\Nation	Download.exe

Executes dropped EXE 2 IoCs

pid	Process
4412	Download.exe
3676	DowloadX.exe

Identifies Wine through registry keys 2 TTPs 2 IoCs

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

defense_evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\Software\Wine	Download.exe
Key opened	\REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\Software\Wine	DowloadX.exe

Loads dropped DLL 2 IoCs

pid	Process
1904	ac39195bc9a3f97ab72f608ba7e86c79b9de337862e290d7d00ba5e0aaf23ac7.exe
1904	ac39195bc9a3f97ab72f608ba7e86c79b9de337862e290d7d00ba5e0aaf23ac7.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Legitimate hosting services abused for malware hosting/C2 1 TTPs 5 IoCs

Web Service

T1102

flow	ioc
1	iplogger.org
2	iplogger.org
30	bitbucket.org
31	bitbucket.org
73	bitbucket.org

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
10	ip-api.com

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4412	Download.exe
3676	DowloadX.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Lass\Inst\DowloadX.exe	ac39195bc9a3f97ab72f608ba7e86c79b9de337862e290d7d00ba5e0aaf23ac7.exe
File created	C:\Program Files (x86)\Lass\Inst\Download.exe	ac39195bc9a3f97ab72f608ba7e86c79b9de337862e290d7d00ba5e0aaf23ac7.exe
File created	C:\Program Files (x86)\Lass\Inst\ipras.vbs	ac39195bc9a3f97ab72f608ba7e86c79b9de337862e290d7d00ba5e0aaf23ac7.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 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	ac39195bc9a3f97ab72f608ba7e86c79b9de337862e290d7d00ba5e0aaf23ac7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Download.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DowloadX.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Download.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Download.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
5292	timeout.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4412	Download.exe
4412	Download.exe
3676	DowloadX.exe
3676	DowloadX.exe

Suspicious use of FindShellTrayWindow 12 IoCs

pid	Process
4412	Download.exe
4412	Download.exe
4412	Download.exe
4412	Download.exe
4412	Download.exe
4412	Download.exe
4412	Download.exe
4412	Download.exe
4412	Download.exe
4412	Download.exe
4412	Download.exe
4412	Download.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1904 wrote to memory of 4412	1904	ac39195bc9a3f97ab72f608ba7e86c79b9de337862e290d7d00ba5e0aaf23ac7.exe	85
PID 1904 wrote to memory of 4412	1904	ac39195bc9a3f97ab72f608ba7e86c79b9de337862e290d7d00ba5e0aaf23ac7.exe	85
PID 1904 wrote to memory of 4412	1904	ac39195bc9a3f97ab72f608ba7e86c79b9de337862e290d7d00ba5e0aaf23ac7.exe	85
PID 1904 wrote to memory of 6048	1904	ac39195bc9a3f97ab72f608ba7e86c79b9de337862e290d7d00ba5e0aaf23ac7.exe	86
PID 1904 wrote to memory of 6048	1904	ac39195bc9a3f97ab72f608ba7e86c79b9de337862e290d7d00ba5e0aaf23ac7.exe	86
PID 1904 wrote to memory of 6048	1904	ac39195bc9a3f97ab72f608ba7e86c79b9de337862e290d7d00ba5e0aaf23ac7.exe	86
PID 1904 wrote to memory of 3676	1904	ac39195bc9a3f97ab72f608ba7e86c79b9de337862e290d7d00ba5e0aaf23ac7.exe	90
PID 1904 wrote to memory of 3676	1904	ac39195bc9a3f97ab72f608ba7e86c79b9de337862e290d7d00ba5e0aaf23ac7.exe	90
PID 1904 wrote to memory of 3676	1904	ac39195bc9a3f97ab72f608ba7e86c79b9de337862e290d7d00ba5e0aaf23ac7.exe	90
PID 4412 wrote to memory of 4580	4412	Download.exe	102
PID 4412 wrote to memory of 4580	4412	Download.exe	102
PID 4412 wrote to memory of 4580	4412	Download.exe	102
PID 4580 wrote to memory of 5292	4580	cmd.exe	104
PID 4580 wrote to memory of 5292	4580	cmd.exe	104
PID 4580 wrote to memory of 5292	4580	cmd.exe	104

C:\Users\Admin\AppData\Local\Temp\ac39195bc9a3f97ab72f608ba7e86c79b9de337862e290d7d00ba5e0aaf23ac7.exe
"C:\Users\Admin\AppData\Local\Temp\ac39195bc9a3f97ab72f608ba7e86c79b9de337862e290d7d00ba5e0aaf23ac7.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1904
- C:\Program Files (x86)\Lass\Inst\Download.exe
  "C:\Program Files (x86)\Lass\Inst\Download.exe"
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Checks computer location settings
  - Executes dropped EXE
  - Identifies Wine through registry keys
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4412
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c rd /s /q C:\ProgramData\SNegUyUGYdgrwOr2 & timeout 2 & del /f /q "C:\Program Files (x86)\Lass\Inst\Download.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4580
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 2
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:5292
- C:\Windows\SysWOW64\CScript.exe
  "C:\Windows\system32\CScript.exe" "C:\Program Files (x86)\Lass\Inst\ipras.vbs" //e:vbscript //B //NOLOGO
  2⤵
  - Blocklisted process makes network request
  - System Location Discovery: System Language Discovery
  PID:6048
- C:\Program Files (x86)\Lass\Inst\DowloadX.exe
  "C:\Program Files (x86)\Lass\Inst\DowloadX.exe"
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Checks computer location settings
  - Executes dropped EXE
  - Identifies Wine through registry keys
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:3676

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

System Information Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion