stealc | a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5

Virtualization/Sandbox Evasion

credential_access stealer

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.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

pid	Process
2892	chrome.exe
1744	chrome.exe
1964	chrome.exe
2248	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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Wine	a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.exe

Loads dropped DLL 1 IoCs

pid	Process
2388	a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.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

pid	Process
2388	a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2732	2388	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 1 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	a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.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	a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

System Information Discovery

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

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2388	a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.exe
2388	a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.exe
2388	a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.exe
2892	chrome.exe
2892	chrome.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe
Token: SeShutdownPrivilege	2892	chrome.exe

Suspicious use of FindShellTrayWindow 34 IoCs

pid	Process
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe
2892	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 2892	2388	a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.exe	31
PID 2388 wrote to memory of 2892	2388	a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.exe	31
PID 2388 wrote to memory of 2892	2388	a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.exe	31
PID 2388 wrote to memory of 2892	2388	a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.exe	31
PID 2892 wrote to memory of 2776	2892	chrome.exe	32
PID 2892 wrote to memory of 2776	2892	chrome.exe	32
PID 2892 wrote to memory of 2776	2892	chrome.exe	32
PID 2892 wrote to memory of 1704	2892	chrome.exe	33
PID 2892 wrote to memory of 1704	2892	chrome.exe	33
PID 2892 wrote to memory of 1704	2892	chrome.exe	33
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1716	2892	chrome.exe	35
PID 2892 wrote to memory of 1396	2892	chrome.exe	36
PID 2892 wrote to memory of 1396	2892	chrome.exe	36
PID 2892 wrote to memory of 1396	2892	chrome.exe	36
PID 2892 wrote to memory of 2692	2892	chrome.exe	37
PID 2892 wrote to memory of 2692	2892	chrome.exe	37
PID 2892 wrote to memory of 2692	2892	chrome.exe	37
PID 2892 wrote to memory of 2692	2892	chrome.exe	37
PID 2892 wrote to memory of 2692	2892	chrome.exe	37
PID 2892 wrote to memory of 2692	2892	chrome.exe	37
PID 2892 wrote to memory of 2692	2892	chrome.exe	37
PID 2892 wrote to memory of 2692	2892	chrome.exe	37
PID 2892 wrote to memory of 2692	2892	chrome.exe	37
PID 2892 wrote to memory of 2692	2892	chrome.exe	37
PID 2892 wrote to memory of 2692	2892	chrome.exe	37
PID 2892 wrote to memory of 2692	2892	chrome.exe	37

C:\Users\Admin\AppData\Local\Temp\a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.exe
"C:\Users\Admin\AppData\Local\Temp\a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.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
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\\Program Files\\Google\\Chrome\\Application\\chrome.exe" --remote-debugging-port=9229 --profile-directory="Default"
  2⤵
  - Uses browser remote debugging
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2892
- - 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:7 --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=106.0.5249.119 --initial-client-data=0xc0,0xc4,0xc8,0x94,0xcc,0x7fef6fc9758,0x7fef6fc9768,0x7fef6fc9778
    3⤵
    PID:2776
- - C:\Windows\system32\ctfmon.exe
    ctfmon.exe
    3⤵
    PID:1704
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1148 --field-trial-handle=1344,i,5821805873081265635,9920144175634267028,131072 /prefetch:2
    3⤵
    PID:1716
- - 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 --mojo-platform-channel-handle=1492 --field-trial-handle=1344,i,5821805873081265635,9920144175634267028,131072 /prefetch:8
    3⤵
    PID:1396
- - 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=utility --mojo-platform-channel-handle=1576 --field-trial-handle=1344,i,5821805873081265635,9920144175634267028,131072 /prefetch:8
    3⤵
    PID:2692
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --first-renderer-process --remote-debugging-port=9229 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2276 --field-trial-handle=1344,i,5821805873081265635,9920144175634267028,131072 /prefetch:1
    3⤵
    - Uses browser remote debugging
    PID:1964
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --remote-debugging-port=9229 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2284 --field-trial-handle=1344,i,5821805873081265635,9920144175634267028,131072 /prefetch:1
    3⤵
    - Uses browser remote debugging
    PID:1744
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=angle --use-angle=swiftshader-webgl --mojo-platform-channel-handle=1008 --field-trial-handle=1344,i,5821805873081265635,9920144175634267028,131072 /prefetch:2
    3⤵
    PID:1240
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --remote-debugging-port=9229 --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --mojo-platform-channel-handle=1444 --field-trial-handle=1344,i,5821805873081265635,9920144175634267028,131072 /prefetch:1
    3⤵
    - Uses browser remote debugging
    PID:2248
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=3496 --field-trial-handle=1344,i,5821805873081265635,9920144175634267028,131072 /prefetch:8
    3⤵
    PID:2484
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=3612 --field-trial-handle=1344,i,5821805873081265635,9920144175634267028,131072 /prefetch:8
    3⤵
    PID:324
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3724 --field-trial-handle=1344,i,5821805873081265635,9920144175634267028,131072 /prefetch:8
    3⤵
    PID:1528
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2388 -s 808
  2⤵
  - Program crash
  PID:2732

C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
1⤵
PID:2076

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Modify Authentication Process

Privilege Escalation

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