d3f31c512033046c4209c5af1352f3ce36d1af39f84946c22ca3e25da6539734

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	WinWord.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	WinWord.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	WinWord.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-1-5-21-2593460650-190333679-3676257533-1000\Software\Wine	WinWord.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_evasion trojan

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	WinWord.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	WinWord.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
5056	WinWord.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

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	WinWord.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	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	msedge.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
5056	WinWord.exe
5056	WinWord.exe
3944	msedge.exe
3944	msedge.exe
1968	msedge.exe
1968	msedge.exe
3372	identity_helper.exe
3372	identity_helper.exe
5212	msedge.exe
5212	msedge.exe
5212	msedge.exe
5212	msedge.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs

pid	Process
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe
1968	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 5056 wrote to memory of 1968	5056	WinWord.exe	93
PID 5056 wrote to memory of 1968	5056	WinWord.exe	93
PID 1968 wrote to memory of 2356	1968	msedge.exe	94
PID 1968 wrote to memory of 2356	1968	msedge.exe	94
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 4716	1968	msedge.exe	95
PID 1968 wrote to memory of 3944	1968	msedge.exe	96
PID 1968 wrote to memory of 3944	1968	msedge.exe	96
PID 1968 wrote to memory of 2368	1968	msedge.exe	97
PID 1968 wrote to memory of 2368	1968	msedge.exe	97
PID 1968 wrote to memory of 2368	1968	msedge.exe	97
PID 1968 wrote to memory of 2368	1968	msedge.exe	97
PID 1968 wrote to memory of 2368	1968	msedge.exe	97
PID 1968 wrote to memory of 2368	1968	msedge.exe	97
PID 1968 wrote to memory of 2368	1968	msedge.exe	97
PID 1968 wrote to memory of 2368	1968	msedge.exe	97
PID 1968 wrote to memory of 2368	1968	msedge.exe	97
PID 1968 wrote to memory of 2368	1968	msedge.exe	97
PID 1968 wrote to memory of 2368	1968	msedge.exe	97
PID 1968 wrote to memory of 2368	1968	msedge.exe	97
PID 1968 wrote to memory of 2368	1968	msedge.exe	97
PID 1968 wrote to memory of 2368	1968	msedge.exe	97
PID 1968 wrote to memory of 2368	1968	msedge.exe	97
PID 1968 wrote to memory of 2368	1968	msedge.exe	97
PID 1968 wrote to memory of 2368	1968	msedge.exe	97
PID 1968 wrote to memory of 2368	1968	msedge.exe	97

C:\Users\Admin\AppData\Local\Temp\WinWord.exe
"C:\Users\Admin\AppData\Local\Temp\WinWord.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Checks whether UAC is enabled
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5056
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://go.microsoft.com/fwlink/?prd=11324&pver=4.5&sbp=applaunch2&plcid=0x409&o1=shim_noversion_found&version=(null)&processname=winword.exe&platform=0009&osver=6&isserver=0&shimver=4.0.30319.0
  2⤵
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:1968
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ffc81f146f8,0x7ffc81f14708,0x7ffc81f14718
    3⤵
    PID:2356
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2188,17018948228868808228,5760751451385427564,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2200 /prefetch:2
    3⤵
    PID:4716
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2188,17018948228868808228,5760751451385427564,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2496 /prefetch:3
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:3944
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2188,17018948228868808228,5760751451385427564,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2600 /prefetch:8
    3⤵
    PID:2368
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2188,17018948228868808228,5760751451385427564,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3288 /prefetch:1
    3⤵
    PID:4444
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2188,17018948228868808228,5760751451385427564,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3348 /prefetch:1
    3⤵
    PID:2616
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2188,17018948228868808228,5760751451385427564,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4952 /prefetch:1
    3⤵
    PID:436
- - C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2188,17018948228868808228,5760751451385427564,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5116 /prefetch:8
    3⤵
    PID:32
- - C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2188,17018948228868808228,5760751451385427564,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5116 /prefetch:8
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:3372
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2188,17018948228868808228,5760751451385427564,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5276 /prefetch:1
    3⤵
    PID:2964
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2188,17018948228868808228,5760751451385427564,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5300 /prefetch:1
    3⤵
    PID:3968
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2188,17018948228868808228,5760751451385427564,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4992 /prefetch:1
    3⤵
    PID:3660
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2188,17018948228868808228,5760751451385427564,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5556 /prefetch:1
    3⤵
    PID:2772
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2188,17018948228868808228,5760751451385427564,131072 --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --gpu-preferences=UAAAAAAAAADoAAAQAAAAAAAAAAAAAAAAAABgAAAEAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1300 /prefetch:2
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:5212

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3008

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3984

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

Virtualization/Sandbox Evasion

Credential Access

Discovery

Browser Information Discovery

T1217

Query Registry

System Information Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion