cryptbot | 4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5

Virtualization/Sandbox Evasion

credential_access stealer

Processes:

4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.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
1876	chrome.exe
2064	chrome.exe
1696	chrome.exe
2736	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:

4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.exe

Executes dropped EXE 1 IoCs

Processes:

service123.exe

pid	Process
1940	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:

4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Wine	4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.exe

Loads dropped DLL 3 IoCs

Processes:

4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.exeservice123.exe

pid	Process
2520	4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.exe
2520	4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.exe
1940	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:

4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.exe

pid	Process
2520	4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.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
2112	2520	WerFault.exe	29

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

Processes:

4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.exeschtasks.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.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:

4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

System Information Discovery

Processes:

chrome.exe

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

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
1484	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.exechrome.exe

pid	Process
2520	4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.exe
1876	chrome.exe
1876	chrome.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

chrome.exe

description	pid	Process
Token: SeShutdownPrivilege	1876	chrome.exe
Token: SeShutdownPrivilege	1876	chrome.exe
Token: SeShutdownPrivilege	1876	chrome.exe
Token: SeShutdownPrivilege	1876	chrome.exe

Suspicious use of FindShellTrayWindow 34 IoCs

Processes:

chrome.exe

pid	Process
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe
1876	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.exechrome.exe

description	pid	Process	procid_target
PID 2520 wrote to memory of 1876	2520	4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.exe	31
PID 2520 wrote to memory of 1876	2520	4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.exe	31
PID 2520 wrote to memory of 1876	2520	4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.exe	31
PID 2520 wrote to memory of 1876	2520	4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.exe	31
PID 1876 wrote to memory of 1144	1876	chrome.exe	32
PID 1876 wrote to memory of 1144	1876	chrome.exe	32
PID 1876 wrote to memory of 1144	1876	chrome.exe	32
PID 1876 wrote to memory of 2916	1876	chrome.exe	33
PID 1876 wrote to memory of 2916	1876	chrome.exe	33
PID 1876 wrote to memory of 2916	1876	chrome.exe	33
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2688	1876	chrome.exe	35
PID 1876 wrote to memory of 2956	1876	chrome.exe	36
PID 1876 wrote to memory of 2956	1876	chrome.exe	36
PID 1876 wrote to memory of 2956	1876	chrome.exe	36
PID 1876 wrote to memory of 1092	1876	chrome.exe	37
PID 1876 wrote to memory of 1092	1876	chrome.exe	37
PID 1876 wrote to memory of 1092	1876	chrome.exe	37
PID 1876 wrote to memory of 1092	1876	chrome.exe	37
PID 1876 wrote to memory of 1092	1876	chrome.exe	37
PID 1876 wrote to memory of 1092	1876	chrome.exe	37
PID 1876 wrote to memory of 1092	1876	chrome.exe	37
PID 1876 wrote to memory of 1092	1876	chrome.exe	37
PID 1876 wrote to memory of 1092	1876	chrome.exe	37
PID 1876 wrote to memory of 1092	1876	chrome.exe	37
PID 1876 wrote to memory of 1092	1876	chrome.exe	37
PID 1876 wrote to memory of 1092	1876	chrome.exe	37

C:\Users\Admin\AppData\Local\Temp\4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.exe
"C:\Users\Admin\AppData\Local\Temp\4a81f8193a4f4bfbf1e6cca16421e0400a1a58e690a854aec5ccafb9e45e1df5.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:2520
- 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 use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1876
- - 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,0x7fef6ed9758,0x7fef6ed9768,0x7fef6ed9778
    3⤵
    PID:1144
- - C:\Windows\system32\ctfmon.exe
    ctfmon.exe
    3⤵
    PID:2916
- - 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=1160 --field-trial-handle=1356,i,6255941166574412926,2650140548592337514,131072 /prefetch:2
    3⤵
    PID:2688
- - 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=1516 --field-trial-handle=1356,i,6255941166574412926,2650140548592337514,131072 /prefetch:8
    3⤵
    PID:2956
- - 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=1596 --field-trial-handle=1356,i,6255941166574412926,2650140548592337514,131072 /prefetch:8
    3⤵
    PID:1092
- - 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=9222 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2316 --field-trial-handle=1356,i,6255941166574412926,2650140548592337514,131072 /prefetch:1
    3⤵
    - Uses browser remote debugging
    PID:2064
- - 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=9222 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=1540 --field-trial-handle=1356,i,6255941166574412926,2650140548592337514,131072 /prefetch:1
    3⤵
    - Uses browser remote debugging
    PID:1696
- - 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=1372 --field-trial-handle=1356,i,6255941166574412926,2650140548592337514,131072 /prefetch:2
    3⤵
    PID:2292
- - 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=9222 --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=1456 --field-trial-handle=1356,i,6255941166574412926,2650140548592337514,131072 /prefetch:1
    3⤵
    - Uses browser remote debugging
    PID:2736
- C:\Users\Admin\AppData\Local\Temp\service123.exe
  "C:\Users\Admin\AppData\Local\Temp\service123.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:1940
- 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:1484
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2520 -s 952
  2⤵
  - Program crash
  PID:2112

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:696

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