Analysis
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max time kernel
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max time network
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platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
25-11-2024 05:46
Static task
static1
Behavioral task
behavioral1
Sample
GT0FC_file.exe
Resource
win7-20241010-en
General
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Target
GT0FC_file.exe
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Size
4.2MB
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MD5
eb315a7709b7905b3f5fb8053e593abb
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SHA1
23f9eafa858d70b35cf0d6d062d0429fadda41f7
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SHA256
54bd07ff8a930a49c2bc85bd36b25782d4f808e712e751086165abcde5d3a05d
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SHA512
9dcdebd8b19ce110798eb0517239d0697627ef9b74579f4fa19e50ff6705a9937ea27a29b9226b025e85c164171c3cb2f6101a10f58ce2b1cd252fb3f3219975
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SSDEEP
98304:ZS7isi15dKkUG4uyef+yNgZHtyxs3FwOv7w5MFjKg:E7ism5dKkzmyaZHtAdOvECFj/
Malware Config
Signatures
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Cryptbot family
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Detects CryptBot payload 1 IoCs
CryptBot is a C++ stealer distributed widely in bundle with other software.
Processes:
resource yara_rule behavioral2/memory/1496-11-0x0000000069CC0000-0x000000006A71B000-memory.dmp family_cryptbot_v3 -
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
Processes:
GT0FC_file.exedescription ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ GT0FC_file.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.
Processes:
chrome.exechrome.exechrome.exechrome.exepid Process 5004 chrome.exe 4868 chrome.exe 3712 chrome.exe 3416 chrome.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
GT0FC_file.exedescription ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion GT0FC_file.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion GT0FC_file.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
GT0FC_file.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation GT0FC_file.exe -
Executes dropped EXE 2 IoCs
Processes:
service123.exeservice123.exepid Process 5064 service123.exe 3564 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.
Processes:
GT0FC_file.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Wine GT0FC_file.exe -
Loads dropped DLL 2 IoCs
Processes:
service123.exeservice123.exepid Process 5064 service123.exe 3564 service123.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
GT0FC_file.exepid Process 1496 GT0FC_file.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target Process procid_target 3568 1496 WerFault.exe 82 -
System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
GT0FC_file.exeservice123.exeschtasks.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language GT0FC_file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language service123.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.
Processes:
GT0FC_file.exedescription ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 GT0FC_file.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString GT0FC_file.exe -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
chrome.exedescription 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.
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Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
GT0FC_file.exechrome.exepid Process 1496 GT0FC_file.exe 1496 GT0FC_file.exe 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe -
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs
Processes:
chrome.exepid Process 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
chrome.exedescription pid Process Token: SeShutdownPrivilege 5004 chrome.exe Token: SeCreatePagefilePrivilege 5004 chrome.exe Token: SeShutdownPrivilege 5004 chrome.exe Token: SeCreatePagefilePrivilege 5004 chrome.exe -
Suspicious use of FindShellTrayWindow 26 IoCs
Processes:
chrome.exepid Process 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe 5004 chrome.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
GT0FC_file.exechrome.exedescription pid Process procid_target PID 1496 wrote to memory of 5004 1496 GT0FC_file.exe 99 PID 1496 wrote to memory of 5004 1496 GT0FC_file.exe 99 PID 5004 wrote to memory of 1908 5004 chrome.exe 100 PID 5004 wrote to memory of 1908 5004 chrome.exe 100 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 3636 5004 chrome.exe 101 PID 5004 wrote to memory of 1088 5004 chrome.exe 102 PID 5004 wrote to memory of 1088 5004 chrome.exe 102 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103 PID 5004 wrote to memory of 5112 5004 chrome.exe 103
Processes
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C:\Users\Admin\AppData\Local\Temp\GT0FC_file.exe"C:\Users\Admin\AppData\Local\Temp\GT0FC_file.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- 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:1496 -
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 behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:5004 -
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=0xf8,0xfc,0x100,0xd4,0x104,0x7ffe577dcc40,0x7ffe577dcc4c,0x7ffe577dcc583⤵PID:1908
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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=1932,i,15115470662496172701,3914562208378133117,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=1928 /prefetch:23⤵PID:3636
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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=2168,i,15115470662496172701,3914562208378133117,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2180 /prefetch:33⤵PID:1088
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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=2240,i,15115470662496172701,3914562208378133117,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2460 /prefetch:83⤵PID:5112
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C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --remote-debugging-port=9222 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --field-trial-handle=3188,i,15115470662496172701,3914562208378133117,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3208 /prefetch:13⤵
- Uses browser remote debugging
PID:3712
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C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --remote-debugging-port=9222 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --field-trial-handle=3216,i,15115470662496172701,3914562208378133117,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3248 /prefetch:13⤵
- Uses browser remote debugging
PID:4868
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C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --remote-debugging-port=9222 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --field-trial-handle=4512,i,15115470662496172701,3914562208378133117,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4592 /prefetch:13⤵
- Uses browser remote debugging
PID:3416
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C:\Users\Admin\AppData\Local\Temp\service123.exe"C:\Users\Admin\AppData\Local\Temp\service123.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:5064
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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 /f2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1528
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1496 -s 12762⤵
- Program crash
PID:3568
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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:3548
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1496 -ip 14961⤵PID:2068
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C:\Users\Admin\AppData\Local\Temp\service123.exeC:\Users\Admin\AppData\Local\Temp\/service123.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
PID:3564
Network
MITRE ATT&CK Enterprise v15
Persistence
Modify Authentication Process
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Modify Authentication Process
1Steal Web Session Cookie
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2B
MD5d751713988987e9331980363e24189ce
SHA197d170e1550eee4afc0af065b78cda302a97674c
SHA2564f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
SHA512b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af
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MD5
d41d8cd98f00b204e9800998ecf8427e
SHA1da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e