vidar | 8afc16be658f69754cc0654864ffed46c97a7558db0c39e0f2d5b870c1ff6e39

Virtualization/Sandbox Evasion

credential_access stealer

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	Bjkm5hE.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
392	chrome.exe
1892	chrome.exe
920	chrome.exe
4872	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	Bjkm5hE.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Bjkm5hE.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.

defense_evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3019359784-2457033987-1305470222-1000\Software\Wine	Bjkm5hE.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
3624	Bjkm5hE.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SystemTemp	chrome.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

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	Bjkm5hE.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	Bjkm5hE.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Bjkm5hE.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

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography\TPM\Telemetry	chrome.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3624	Bjkm5hE.exe
3624	Bjkm5hE.exe
3624	Bjkm5hE.exe
3624	Bjkm5hE.exe
3624	Bjkm5hE.exe
3624	Bjkm5hE.exe
392	chrome.exe
392	chrome.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs

pid	Process
392	chrome.exe
392	chrome.exe
392	chrome.exe

Suspicious use of AdjustPrivilegeToken 14 IoCs

description	pid	Process
Token: SeShutdownPrivilege	392	chrome.exe
Token: SeCreatePagefilePrivilege	392	chrome.exe
Token: SeShutdownPrivilege	392	chrome.exe
Token: SeCreatePagefilePrivilege	392	chrome.exe
Token: SeShutdownPrivilege	392	chrome.exe
Token: SeCreatePagefilePrivilege	392	chrome.exe
Token: SeShutdownPrivilege	392	chrome.exe
Token: SeCreatePagefilePrivilege	392	chrome.exe
Token: SeShutdownPrivilege	392	chrome.exe
Token: SeCreatePagefilePrivilege	392	chrome.exe
Token: SeShutdownPrivilege	392	chrome.exe
Token: SeCreatePagefilePrivilege	392	chrome.exe
Token: SeShutdownPrivilege	392	chrome.exe
Token: SeCreatePagefilePrivilege	392	chrome.exe

Suspicious use of FindShellTrayWindow 26 IoCs

pid	Process
392	chrome.exe
392	chrome.exe
392	chrome.exe
392	chrome.exe
392	chrome.exe
392	chrome.exe
392	chrome.exe
392	chrome.exe
392	chrome.exe
392	chrome.exe
392	chrome.exe
392	chrome.exe
392	chrome.exe
392	chrome.exe
392	chrome.exe
392	chrome.exe
392	chrome.exe
392	chrome.exe
392	chrome.exe
392	chrome.exe
392	chrome.exe
392	chrome.exe
392	chrome.exe
392	chrome.exe
392	chrome.exe
392	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3624 wrote to memory of 392	3624	Bjkm5hE.exe	82
PID 3624 wrote to memory of 392	3624	Bjkm5hE.exe	82
PID 392 wrote to memory of 1064	392	chrome.exe	83
PID 392 wrote to memory of 1064	392	chrome.exe	83
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 2296	392	chrome.exe	84
PID 392 wrote to memory of 4740	392	chrome.exe	85
PID 392 wrote to memory of 4740	392	chrome.exe	85
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86
PID 392 wrote to memory of 1960	392	chrome.exe	86

C:\Users\Admin\AppData\Local\Temp\Bjkm5hE.exe
"C:\Users\Admin\AppData\Local\Temp\Bjkm5hE.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- 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:3624
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --remote-debugging-port=9223 --profile-directory="Default"
  2⤵
  - Uses browser remote debugging
  - Drops file in Windows directory
  - Enumerates system info in registry
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:392
- - 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=0xfc,0x100,0x104,0xd8,0x108,0x7fffe57dcc40,0x7fffe57dcc4c,0x7fffe57dcc58
    3⤵
    PID:1064
- - 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=1836,i,10696542388364317685,10109549263927813025,262144 --variations-seed-version=20250209-180322.678000 --mojo-platform-channel-handle=1832 /prefetch:2
    3⤵
    PID:2296
- - 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=2128,i,10696542388364317685,10109549263927813025,262144 --variations-seed-version=20250209-180322.678000 --mojo-platform-channel-handle=2132 /prefetch:3
    3⤵
    PID:4740
- - 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=2192,i,10696542388364317685,10109549263927813025,262144 --variations-seed-version=20250209-180322.678000 --mojo-platform-channel-handle=2424 /prefetch:8
    3⤵
    PID:1960
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --remote-debugging-port=9223 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --field-trial-handle=3152,i,10696542388364317685,10109549263927813025,262144 --variations-seed-version=20250209-180322.678000 --mojo-platform-channel-handle=3172 /prefetch:1
    3⤵
    - Uses browser remote debugging
    PID:1892
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --remote-debugging-port=9223 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --field-trial-handle=3180,i,10696542388364317685,10109549263927813025,262144 --variations-seed-version=20250209-180322.678000 --mojo-platform-channel-handle=3216 /prefetch:1
    3⤵
    - Uses browser remote debugging
    PID:920
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --remote-debugging-port=9223 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --field-trial-handle=4268,i,10696542388364317685,10109549263927813025,262144 --variations-seed-version=20250209-180322.678000 --mojo-platform-channel-handle=4492 /prefetch:1
    3⤵
    - Uses browser remote debugging
    PID:4872
- - 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 --no-appcompat-clear --field-trial-handle=4464,i,10696542388364317685,10109549263927813025,262144 --variations-seed-version=20250209-180322.678000 --mojo-platform-channel-handle=4192 /prefetch:8
    3⤵
    PID:1360
- - 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 --no-appcompat-clear --field-trial-handle=4720,i,10696542388364317685,10109549263927813025,262144 --variations-seed-version=20250209-180322.678000 --mojo-platform-channel-handle=4732 /prefetch:8
    3⤵
    PID:1060
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=4856,i,10696542388364317685,10109549263927813025,262144 --variations-seed-version=20250209-180322.678000 --mojo-platform-channel-handle=4864 /prefetch:8
    3⤵
    PID:4948
- - 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 --no-appcompat-clear --field-trial-handle=4960,i,10696542388364317685,10109549263927813025,262144 --variations-seed-version=20250209-180322.678000 --mojo-platform-channel-handle=4624 /prefetch:8
    3⤵
    PID:3720

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:2656

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
1⤵
PID:3836

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