cryptbot | b4d038b967536bb78113868b0819e5ae63d1a3f536d8a6c900cc80f1c541c0fc

Virtualization/Sandbox Evasion

credential_access stealer

Processes:

b4d038b967536bb78113868b0819e5ae63d1a3f536d8a6c900cc80f1c541c0fc.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	b4d038b967536bb78113868b0819e5ae63d1a3f536d8a6c900cc80f1c541c0fc.exe

Uses browser remote debugging 2 TTPs 4 IoCs

Can be used control the browser and steal sensitive information such as credentials and session cookies.

Steal Web Session Cookie

T1539

Modify Authentication Process

Processes:

chrome.exechrome.exechrome.exechrome.exe

pid	Process
4172	chrome.exe
3292	chrome.exe
4332	chrome.exe
4352	chrome.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

Processes:

b4d038b967536bb78113868b0819e5ae63d1a3f536d8a6c900cc80f1c541c0fc.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b4d038b967536bb78113868b0819e5ae63d1a3f536d8a6c900cc80f1c541c0fc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	b4d038b967536bb78113868b0819e5ae63d1a3f536d8a6c900cc80f1c541c0fc.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

System Information Discovery

Processes:

b4d038b967536bb78113868b0819e5ae63d1a3f536d8a6c900cc80f1c541c0fc.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	b4d038b967536bb78113868b0819e5ae63d1a3f536d8a6c900cc80f1c541c0fc.exe

Executes dropped EXE 3 IoCs

Processes:

service123.exeservice123.exeservice123.exe

pid	Process
1332	service123.exe
1748	service123.exe
4732	service123.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

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

evasion

Query Registry

Virtualization/Sandbox Evasion

Processes:

b4d038b967536bb78113868b0819e5ae63d1a3f536d8a6c900cc80f1c541c0fc.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Wine	b4d038b967536bb78113868b0819e5ae63d1a3f536d8a6c900cc80f1c541c0fc.exe

Loads dropped DLL 3 IoCs

Processes:

service123.exeservice123.exeservice123.exe

pid	Process
1332	service123.exe
1748	service123.exe
4732	service123.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
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

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

b4d038b967536bb78113868b0819e5ae63d1a3f536d8a6c900cc80f1c541c0fc.exe

pid	Process
4392	b4d038b967536bb78113868b0819e5ae63d1a3f536d8a6c900cc80f1c541c0fc.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
1908	4392	WerFault.exe	82

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

Processes:

b4d038b967536bb78113868b0819e5ae63d1a3f536d8a6c900cc80f1c541c0fc.exeservice123.exeschtasks.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b4d038b967536bb78113868b0819e5ae63d1a3f536d8a6c900cc80f1c541c0fc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	service123.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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

Processes:

b4d038b967536bb78113868b0819e5ae63d1a3f536d8a6c900cc80f1c541c0fc.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	b4d038b967536bb78113868b0819e5ae63d1a3f536d8a6c900cc80f1c541c0fc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	b4d038b967536bb78113868b0819e5ae63d1a3f536d8a6c900cc80f1c541c0fc.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

System Information Discovery

Processes:

chrome.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	chrome.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	chrome.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

Processes:

schtasks.exe

pid	Process
1388	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

b4d038b967536bb78113868b0819e5ae63d1a3f536d8a6c900cc80f1c541c0fc.exechrome.exe

pid	Process
4392	b4d038b967536bb78113868b0819e5ae63d1a3f536d8a6c900cc80f1c541c0fc.exe
4392	b4d038b967536bb78113868b0819e5ae63d1a3f536d8a6c900cc80f1c541c0fc.exe
4172	chrome.exe
4172	chrome.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs

Processes:

chrome.exe

pid	Process
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

chrome.exe

description	pid	Process
Token: SeShutdownPrivilege	4172	chrome.exe
Token: SeCreatePagefilePrivilege	4172	chrome.exe
Token: SeShutdownPrivilege	4172	chrome.exe
Token: SeCreatePagefilePrivilege	4172	chrome.exe

Suspicious use of FindShellTrayWindow 26 IoCs

Processes:

chrome.exe

pid	Process
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

b4d038b967536bb78113868b0819e5ae63d1a3f536d8a6c900cc80f1c541c0fc.exechrome.exe

description	pid	Process	procid_target
PID 4392 wrote to memory of 4172	4392	b4d038b967536bb78113868b0819e5ae63d1a3f536d8a6c900cc80f1c541c0fc.exe	94
PID 4392 wrote to memory of 4172	4392	b4d038b967536bb78113868b0819e5ae63d1a3f536d8a6c900cc80f1c541c0fc.exe	94
PID 4172 wrote to memory of 4040	4172	chrome.exe	95
PID 4172 wrote to memory of 4040	4172	chrome.exe	95
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 4776	4172	chrome.exe	96
PID 4172 wrote to memory of 1804	4172	chrome.exe	97
PID 4172 wrote to memory of 1804	4172	chrome.exe	97
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98
PID 4172 wrote to memory of 3692	4172	chrome.exe	98

C:\Users\Admin\AppData\Local\Temp\b4d038b967536bb78113868b0819e5ae63d1a3f536d8a6c900cc80f1c541c0fc.exe
"C:\Users\Admin\AppData\Local\Temp\b4d038b967536bb78113868b0819e5ae63d1a3f536d8a6c900cc80f1c541c0fc.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- 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 WriteProcessMemory
PID:4392
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --remote-debugging-port=9222 --profile-directory="Default"
  2⤵
  - Uses browser remote debugging
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4172
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=123.0.6312.123 --initial-client-data=0xf8,0xfc,0x100,0xd4,0x104,0x7ffc61d1cc40,0x7ffc61d1cc4c,0x7ffc61d1cc58
    3⤵
    PID:4040
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAEAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --field-trial-handle=1928,i,17907942428043732663,8708700035653793890,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=1924 /prefetch:2
    3⤵
    PID:4776
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=2184,i,17907942428043732663,8708700035653793890,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2192 /prefetch:3
    3⤵
    PID:1804
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=2252,i,17907942428043732663,8708700035653793890,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2464 /prefetch:8
    3⤵
    PID:3692
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --remote-debugging-port=9222 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --field-trial-handle=3200,i,17907942428043732663,8708700035653793890,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3208 /prefetch:1
    3⤵
    - Uses browser remote debugging
    PID:4332
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --remote-debugging-port=9222 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --field-trial-handle=3232,i,17907942428043732663,8708700035653793890,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3240 /prefetch:1
    3⤵
    - Uses browser remote debugging
    PID:3292
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --remote-debugging-port=9222 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --field-trial-handle=4512,i,17907942428043732663,8708700035653793890,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4568 /prefetch:1
    3⤵
    - Uses browser remote debugging
    PID:4352
- C:\Users\Admin\AppData\Local\Temp\service123.exe
  "C:\Users\Admin\AppData\Local\Temp\service123.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:1332
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /tn "ServiceData4" /tr "C:\Users\Admin\AppData\Local\Temp\/service123.exe" /st 00:01 /du 9800:59 /sc once /ri 1 /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1388
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4392 -s 1816
  2⤵
  - Program crash
  PID:1908

C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe"
1⤵
PID:2372

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4392 -ip 4392
1⤵
PID:1756

C:\Users\Admin\AppData\Local\Temp\service123.exe
C:\Users\Admin\AppData\Local\Temp\/service123.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1748

C:\Users\Admin\AppData\Local\Temp\service123.exe
C:\Users\Admin\AppData\Local\Temp\/service123.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
PID:4732

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

Persistence

Modify Authentication Process

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Modify Authentication Process

Virtualization/Sandbox Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Modify Authentication Process

Steal Web Session Cookie

T1539

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

Query Registry

System Information Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion