mercurialgrabber | hxxps://github[.]com/16kBxgra/MercurialGrabber

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions	MercurialGrabber.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions	MercurialGrabber.exe

Looks for VMWare Tools registry key 2 TTPs 2 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\VMWare, Inc.\VMWare Tools	MercurialGrabber.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\VMWare, Inc.\VMWare Tools	MercurialGrabber.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\VideoBiosVersion	MercurialGrabber.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	MercurialGrabber.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
37	raw.githubusercontent.com
38	raw.githubusercontent.com

Maps connected drives based on registry 3 TTPs 4 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	MercurialGrabber.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	MercurialGrabber.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	MercurialGrabber.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	MercurialGrabber.exe

Checks SCSI registry key(s) 3 TTPs 2 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_VMware_&Prod_VMware_Virtual_S	MercurialGrabber.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_VMware_&Prod_VMware_Virtual_S	MercurialGrabber.exe

Enumerates system info in registry 2 TTPs 11 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosInformation	MercurialGrabber.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Logical Unit Id 0	MercurialGrabber.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosInformation	MercurialGrabber.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Logical Unit Id 0	MercurialGrabber.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemManufacturer	MercurialGrabber.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemProductName	MercurialGrabber.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemManufacturer	MercurialGrabber.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemProductName	MercurialGrabber.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	chrome.exe

Modifies data under HKEY_USERS 2 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography\TPM\Telemetry\TraceTimeLast = "133587322011183566"	chrome.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography\TPM\Telemetry	chrome.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4106386276-4127174233-3637007343-1000_Classes\Local Settings	chrome.exe

Opens file in notepad (likely ransom note) 2 IoCs

ransomware

pid	Process
2292	NOTEPAD.EXE
4468	NOTEPAD.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3840	chrome.exe
3840	chrome.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 2 IoCs

pid	Process
3840	chrome.exe
3840	chrome.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe
Token: SeShutdownPrivilege	3840	chrome.exe
Token: SeCreatePagefilePrivilege	3840	chrome.exe

Suspicious use of FindShellTrayWindow 33 IoCs

pid	Process
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe
3840	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3840 wrote to memory of 1440	3840	chrome.exe	74
PID 3840 wrote to memory of 1440	3840	chrome.exe	74
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 32	3840	chrome.exe	76
PID 3840 wrote to memory of 216	3840	chrome.exe	77
PID 3840 wrote to memory of 216	3840	chrome.exe	77
PID 3840 wrote to memory of 428	3840	chrome.exe	78
PID 3840 wrote to memory of 428	3840	chrome.exe	78
PID 3840 wrote to memory of 428	3840	chrome.exe	78
PID 3840 wrote to memory of 428	3840	chrome.exe	78
PID 3840 wrote to memory of 428	3840	chrome.exe	78
PID 3840 wrote to memory of 428	3840	chrome.exe	78
PID 3840 wrote to memory of 428	3840	chrome.exe	78
PID 3840 wrote to memory of 428	3840	chrome.exe	78
PID 3840 wrote to memory of 428	3840	chrome.exe	78
PID 3840 wrote to memory of 428	3840	chrome.exe	78
PID 3840 wrote to memory of 428	3840	chrome.exe	78
PID 3840 wrote to memory of 428	3840	chrome.exe	78
PID 3840 wrote to memory of 428	3840	chrome.exe	78
PID 3840 wrote to memory of 428	3840	chrome.exe	78
PID 3840 wrote to memory of 428	3840	chrome.exe	78
PID 3840 wrote to memory of 428	3840	chrome.exe	78
PID 3840 wrote to memory of 428	3840	chrome.exe	78
PID 3840 wrote to memory of 428	3840	chrome.exe	78
PID 3840 wrote to memory of 428	3840	chrome.exe	78
PID 3840 wrote to memory of 428	3840	chrome.exe	78
PID 3840 wrote to memory of 428	3840	chrome.exe	78
PID 3840 wrote to memory of 428	3840	chrome.exe	78

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument https://github.com/16kBxgra/MercurialGrabber
1⤵
- Enumerates system info in registry
- Modifies data under HKEY_USERS
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3840
- 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=0xcc,0xd0,0xd4,0xa8,0xd8,0x7fffba209758,0x7fffba209768,0x7fffba209778
  2⤵
  PID:1440
- 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=1516 --field-trial-handle=1840,i,6980285686441059853,814469202491324496,131072 /prefetch:2
  2⤵
  PID:32
- 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=1788 --field-trial-handle=1840,i,6980285686441059853,814469202491324496,131072 /prefetch:8
  2⤵
  PID:216
- 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=1664 --field-trial-handle=1840,i,6980285686441059853,814469202491324496,131072 /prefetch:8
  2⤵
  PID:428
- 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 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2832 --field-trial-handle=1840,i,6980285686441059853,814469202491324496,131072 /prefetch:1
  2⤵
  PID:1504
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2840 --field-trial-handle=1840,i,6980285686441059853,814469202491324496,131072 /prefetch:1
  2⤵
  PID:3396
- 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 --mojo-platform-channel-handle=4864 --field-trial-handle=1840,i,6980285686441059853,814469202491324496,131072 /prefetch:8
  2⤵
  PID:1876
- 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=5192 --field-trial-handle=1840,i,6980285686441059853,814469202491324496,131072 /prefetch:8
  2⤵
  PID:2132
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4664 --field-trial-handle=1840,i,6980285686441059853,814469202491324496,131072 /prefetch:8
  2⤵
  PID:3592
- 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=3828 --field-trial-handle=1840,i,6980285686441059853,814469202491324496,131072 /prefetch:8
  2⤵
  PID:2052

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:3864

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:3812

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Downloads\Mercurial.Grabber\readme.txt
1⤵
- Opens file in notepad (likely ransom note)
PID:2292

C:\Users\Admin\Downloads\Mercurial.Grabber\MercurialGrabber.exe
"C:\Users\Admin\Downloads\Mercurial.Grabber\MercurialGrabber.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Maps connected drives based on registry
- Checks SCSI registry key(s)
- Enumerates system info in registry
PID:1696

C:\Users\Admin\Downloads\Mercurial.Grabber\MercurialGrabber.exe
"C:\Users\Admin\Downloads\Mercurial.Grabber\MercurialGrabber.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Maps connected drives based on registry
- Checks SCSI registry key(s)
- Enumerates system info in registry
PID:4084

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Downloads\Mercurial.Grabber\readme.txt
1⤵
- Opens file in notepad (likely ransom note)
PID:4468

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery

Virtualization/Sandbox Evasion