amadey | f6b3275a6874dfae98dd683ff84c5d9894a17d86eb45c1cf0b621ad54a680580

Virtualization/Sandbox Evasion

credential_access stealer

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	ad3556460b.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	file.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	skotes.exe

Downloads MZ/PE file

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
2368	chrome.exe
2144	chrome.exe
2400	chrome.exe
2300	chrome.exe

Checks BIOS information in registry 2 TTPs 6 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	ad3556460b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	ad3556460b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	skotes.exe

Executes dropped EXE 4 IoCs

pid	Process
628	skotes.exe
748	ad3556460b.exe
1880	service123.exe
1036	service123.exe

Identifies Wine through registry keys 2 TTPs 3 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-1-5-21-1488793075-819845221-1497111674-1000\Software\Wine	file.exe
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Wine	skotes.exe
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Wine	ad3556460b.exe

Loads dropped DLL 10 IoCs

pid	Process
2088	file.exe
628	skotes.exe
628	skotes.exe
748	ad3556460b.exe
748	ad3556460b.exe
2464	WerFault.exe
2464	WerFault.exe
2464	WerFault.exe
1880	service123.exe
1036	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 3 IoCs

pid	Process
2088	file.exe
628	skotes.exe
748	ad3556460b.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\skotes.job	file.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

pid	pid_target	Process	procid_target
2464	748	WerFault.exe	33

System Location Discovery: System Language Discovery 1 TTPs 4 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	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	skotes.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ad3556460b.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	ad3556460b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ad3556460b.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

System Information Discovery

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

pid	Process
1660	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2088	file.exe
628	skotes.exe
748	ad3556460b.exe
2144	chrome.exe
2144	chrome.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2144	chrome.exe
Token: SeShutdownPrivilege	2144	chrome.exe
Token: SeShutdownPrivilege	2144	chrome.exe
Token: SeShutdownPrivilege	2144	chrome.exe

Suspicious use of FindShellTrayWindow 35 IoCs

pid	Process
2088	file.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe
2144	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2088 wrote to memory of 628	2088	file.exe	30
PID 2088 wrote to memory of 628	2088	file.exe	30
PID 2088 wrote to memory of 628	2088	file.exe	30
PID 2088 wrote to memory of 628	2088	file.exe	30
PID 628 wrote to memory of 748	628	skotes.exe	33
PID 628 wrote to memory of 748	628	skotes.exe	33
PID 628 wrote to memory of 748	628	skotes.exe	33
PID 628 wrote to memory of 748	628	skotes.exe	33
PID 748 wrote to memory of 2144	748	ad3556460b.exe	34
PID 748 wrote to memory of 2144	748	ad3556460b.exe	34
PID 748 wrote to memory of 2144	748	ad3556460b.exe	34
PID 748 wrote to memory of 2144	748	ad3556460b.exe	34
PID 2144 wrote to memory of 1072	2144	chrome.exe	35
PID 2144 wrote to memory of 1072	2144	chrome.exe	35
PID 2144 wrote to memory of 1072	2144	chrome.exe	35
PID 2144 wrote to memory of 948	2144	chrome.exe	36
PID 2144 wrote to memory of 948	2144	chrome.exe	36
PID 2144 wrote to memory of 948	2144	chrome.exe	36
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1068	2144	chrome.exe	38
PID 2144 wrote to memory of 1692	2144	chrome.exe	39
PID 2144 wrote to memory of 1692	2144	chrome.exe	39
PID 2144 wrote to memory of 1692	2144	chrome.exe	39
PID 2144 wrote to memory of 1644	2144	chrome.exe	40
PID 2144 wrote to memory of 1644	2144	chrome.exe	40
PID 2144 wrote to memory of 1644	2144	chrome.exe	40
PID 2144 wrote to memory of 1644	2144	chrome.exe	40

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.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
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2088
- C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe
  "C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe"
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Identifies Wine through registry keys
  - Loads dropped DLL
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:628
- - C:\Users\Admin\AppData\Local\Temp\1007680001\ad3556460b.exe
    "C:\Users\Admin\AppData\Local\Temp\1007680001\ad3556460b.exe"
    3⤵
    - Identifies VirtualBox via ACPI registry values (likely anti-VM)
    - Checks BIOS information in registry
    - Executes dropped EXE
    - 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:748
  - - C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" --remote-debugging-port=9222 --profile-directory="Default"
      4⤵
      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:2144
    - - 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,0x7fef6f49758,0x7fef6f49768,0x7fef6f49778
        5⤵
        
        PID:1072
    - - C:\Windows\system32\ctfmon.exe
        
        ctfmon.exe
        5⤵
        
        PID:948
    - - 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=1136 --field-trial-handle=1160,i,1507059848784087884,11481759221391272219,131072 /prefetch:2
        5⤵
        
        PID:1068
    - - 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=1468 --field-trial-handle=1160,i,1507059848784087884,11481759221391272219,131072 /prefetch:8
        5⤵
        
        PID:1692
    - - 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=1592 --field-trial-handle=1160,i,1507059848784087884,11481759221391272219,131072 /prefetch:8
        5⤵
        
        PID:1644
    - - 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=2360 --field-trial-handle=1160,i,1507059848784087884,11481759221391272219,131072 /prefetch:1
        5⤵
        Uses browser remote debugging
        
        PID:2300
    - - 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=2372 --field-trial-handle=1160,i,1507059848784087884,11481759221391272219,131072 /prefetch:1
        5⤵
        Uses browser remote debugging
        
        PID:2400
    - - 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=1520 --field-trial-handle=1160,i,1507059848784087884,11481759221391272219,131072 /prefetch:2
        5⤵
        
        PID:2588
    - - 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=1312 --field-trial-handle=1160,i,1507059848784087884,11481759221391272219,131072 /prefetch:1
        5⤵
        Uses browser remote debugging
        
        PID:2368
  - - C:\Users\Admin\AppData\Local\Temp\service123.exe
      "C:\Users\Admin\AppData\Local\Temp\service123.exe"
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      PID:1880
  - - 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
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:1660
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 748 -s 960
      4⤵
      Loads dropped DLL
      Program crash
      PID:2464

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:1676

C:\Windows\system32\taskeng.exe
taskeng.exe {2F50B1E9-2BE1-4E02-A5F4-20248700FB5B} S-1-5-21-1488793075-819845221-1497111674-1000:UPNECVIU\Admin:Interactive:[1]
1⤵
PID:2752
- C:\Users\Admin\AppData\Local\Temp\service123.exe
  C:\Users\Admin\AppData\Local\Temp\/service123.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:1036

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