812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08/11/2024, 00:55

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General

Target
812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe
Size 55KB
Sample241108-a9rcva1gmn
SHA256 812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c
MD5 4342d4cfcca8529ce888761ba1b30f68
SHA1 1edd025dc7424200c288e00d4cba197b1d7c8d49
SHA512 cf239ab618af7bb0adb5b1adcfc61d1833ddf4a9491edd797051d51eb8828dfbd75e1df211a6c7aa1dda7cc4fc64889f6f530d7d715c8df3e6f89b86734173ee
SSDEEP 1536:3hBZ1b9c409y1G1i35Bo01i/gcU8eVTOK/YqjYYamvbtb:PZl2zoxV1i/NU82OMYcYYamv5b
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

defense_evasion discovery persistence upx

Malware Config

Signatures

Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{A0XC6A98-A14C-J35H-46UD-F5AR862J2AH5}	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{A0XC6A98-A14C-J35H-46UD-F5AR862J2AH5}\StubPath = "C:\\system.exe"	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\WINDOWS\SysWOW64\ie.bat	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe
File created	C:\WINDOWS\SysWOW64\qx.bat	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe

Hide Artifacts: Hidden Files and Directories 1 TTPs 7 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
2576	cmd.exe
1380	cmd.exe
3544	cmd.exe
4392	cmd.exe
3356	cmd.exe
4656	cmd.exe
3664	cmd.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3188-0-0x0000000000400000-0x0000000000429000-memory.dmp	upx
behavioral2/files/0x0008000000023c79-10.dat	upx
behavioral2/files/0x0007000000023c7d-13.dat	upx
behavioral2/memory/3188-20-0x0000000000400000-0x0000000000429000-memory.dmp	upx

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\WINDOWS\windows.exe	attrib.exe
File created	C:\WINDOWS\windows.exe	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe
File opened for modification	C:\WINDOWS\windows.exe	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe

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 16 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	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies Internet Explorer settings 1 TTPs 39 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3934754520"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31142264"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000013f787289f1be14e87be8dc204ff715d00000000020000000000106600000001000020000000c49519a3fd1966fc9b72e950b55d7cff4d891a86f6dcfd0fd52812fbe3643705000000000e80000000020000200000001bcf4fbe89b45800b88cf75abf10143f70db95c46a79223ce7fcc08fe4c18e9d20000000cace098586160d315ff9e5b0f22286933ab9c24a3c5f625f0df888771c51206240000000dbe7fe1a9144830924a2c586f7f0bad4cde777bc6269f9db5ca8ebc3dd7d295d8eb6c4ba3846bbafa980c043ecd33917211fc0b6394affbbd3c9c016dd1a35bc	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{161482E5-9D6C-11EF-B319-CAF61997B0B0} = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3934598600"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = e0dd24eb7831db01	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "437792277"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31142264"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = d0092ceb7831db01	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3936942399"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Main	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000013f787289f1be14e87be8dc204ff715d00000000020000000000106600000001000020000000af79e02384e2620b02b3449541477fd95d5376db7b1b8c9ff41dadd6105b2687000000000e8000000002000020000000dd508dcdbe840b83dde56d5009d7162b6c52d4259e38ad1cc0ddf2611d31e51f20000000dd6a0ee2989f89c985523d34d391b06b2a0e92c497cb5318a40f49cfe9fc60bd40000000d8c9058851263e61ec25de549b4f70d3d5cd781a2be6d117dcb21fda3fb57a32aa1ef27d4ae5f39071630284f4c8c141914aeb9e304454bdd3be4c39d48a22e5	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31142264"	IEXPLORE.EXE

Modifies Internet Explorer start page 1 TTPs 1 IoCs

stealer

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Start Page = "http://dhku.com"	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe
3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe
3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe
3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe
3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe
3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe
3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe
3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe
3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe
3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4208	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe
4208	IEXPLORE.EXE
4208	IEXPLORE.EXE
3060	IEXPLORE.EXE
3060	IEXPLORE.EXE
3060	IEXPLORE.EXE
3060	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 49 IoCs

description	pid	Process	procid_target
PID 3188 wrote to memory of 4208	3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe	83
PID 3188 wrote to memory of 4208	3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe	83
PID 4208 wrote to memory of 3060	4208	IEXPLORE.EXE	85
PID 4208 wrote to memory of 3060	4208	IEXPLORE.EXE	85
PID 4208 wrote to memory of 3060	4208	IEXPLORE.EXE	85
PID 3188 wrote to memory of 372	3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe	86
PID 3188 wrote to memory of 372	3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe	86
PID 3188 wrote to memory of 4392	3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe	87
PID 3188 wrote to memory of 4392	3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe	87
PID 3188 wrote to memory of 4392	3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe	87
PID 4392 wrote to memory of 3192	4392	cmd.exe	89
PID 4392 wrote to memory of 3192	4392	cmd.exe	89
PID 4392 wrote to memory of 3192	4392	cmd.exe	89
PID 3188 wrote to memory of 3356	3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe	90
PID 3188 wrote to memory of 3356	3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe	90
PID 3188 wrote to memory of 3356	3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe	90
PID 3356 wrote to memory of 2940	3356	cmd.exe	92
PID 3356 wrote to memory of 2940	3356	cmd.exe	92
PID 3356 wrote to memory of 2940	3356	cmd.exe	92
PID 3188 wrote to memory of 4656	3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe	93
PID 3188 wrote to memory of 4656	3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe	93
PID 3188 wrote to memory of 4656	3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe	93
PID 4656 wrote to memory of 4028	4656	cmd.exe	96
PID 4656 wrote to memory of 4028	4656	cmd.exe	96
PID 4656 wrote to memory of 4028	4656	cmd.exe	96
PID 3188 wrote to memory of 3664	3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe	97
PID 3188 wrote to memory of 3664	3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe	97
PID 3188 wrote to memory of 3664	3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe	97
PID 3664 wrote to memory of 3588	3664	cmd.exe	99
PID 3664 wrote to memory of 3588	3664	cmd.exe	99
PID 3664 wrote to memory of 3588	3664	cmd.exe	99
PID 3188 wrote to memory of 2576	3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe	101
PID 3188 wrote to memory of 2576	3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe	101
PID 3188 wrote to memory of 2576	3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe	101
PID 2576 wrote to memory of 3728	2576	cmd.exe	103
PID 2576 wrote to memory of 3728	2576	cmd.exe	103
PID 2576 wrote to memory of 3728	2576	cmd.exe	103
PID 3188 wrote to memory of 1380	3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe	104
PID 3188 wrote to memory of 1380	3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe	104
PID 3188 wrote to memory of 1380	3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe	104
PID 1380 wrote to memory of 2172	1380	cmd.exe	106
PID 1380 wrote to memory of 2172	1380	cmd.exe	106
PID 1380 wrote to memory of 2172	1380	cmd.exe	106
PID 3188 wrote to memory of 3544	3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe	107
PID 3188 wrote to memory of 3544	3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe	107
PID 3188 wrote to memory of 3544	3188	812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe	107
PID 3544 wrote to memory of 4488	3544	cmd.exe	109
PID 3544 wrote to memory of 4488	3544	cmd.exe	109
PID 3544 wrote to memory of 4488	3544	cmd.exe	109

Views/modifies file attributes 1 TTPs 7 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3192	attrib.exe
2940	attrib.exe
4028	attrib.exe
3588	attrib.exe
3728	attrib.exe
2172	attrib.exe
4488	attrib.exe

C:\Users\Admin\AppData\Local\Temp\812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe
"C:\Users\Admin\AppData\Local\Temp\812ece97039fada0d066f244e5c72e20930043d8bee640b9316176b186c1af3c.exe"
1⤵
- Boot or Logon Autostart Execution: Active Setup
- Checks computer location settings
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Modifies Internet Explorer start page
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3188
- C:\Program Files\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files\Internet Explorer\IEXPLORE.EXE" http://www.212ok.com/Gbook.asp?qita
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4208
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4208 CREDAT:17410 /prefetch:2
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:3060
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe" http://www.ymtuku.com/xg/?tan
  2⤵
  - Modifies Internet Explorer settings
  PID:372
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c attrib +h "C:\Documents and Settings\All Users\桌面\Internet Explorer.lnk"
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4392
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h "C:\Documents and Settings\All Users\桌面\Internet Explorer.lnk"
    3⤵
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:3192
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c attrib +h "C:\Documents and Settings\Admin\桌面\Internet Explorer.lnk"
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3356
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h "C:\Documents and Settings\Admin\桌面\Internet Explorer.lnk"
    3⤵
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2940
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c attrib +h "C:\Documents and Settings\Admin\Application Data\Microsoft\Internet Explorer\Quick Launch\启动 Internet Explorer 浏览器.lnk"
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4656
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h "C:\Documents and Settings\Admin\Application Data\Microsoft\Internet Explorer\Quick Launch\启动 Internet Explorer 浏览器.lnk"
    3⤵
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:4028
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c attrib +h "C:\Documents and Settings\Admin\Application Data\Microsoft\Internet Explorer\Quick Launch\Internet Explorer.lnk"
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3664
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h "C:\Documents and Settings\Admin\Application Data\Microsoft\Internet Explorer\Quick Launch\Internet Explorer.lnk"
    3⤵
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:3588
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c attrib +h "C:\Documents and Settings\Admin\「开始」菜单\程序\Internet Explorer.lnk"
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2576
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h "C:\Documents and Settings\Admin\「开始」菜单\程序\Internet Explorer.lnk"
    3⤵
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:3728
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c attrib +h "C:\WINDOWS\windows.exe"
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1380
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h "C:\WINDOWS\windows.exe"
    3⤵
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2172
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c attrib +h "c:\system.exe"
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3544
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h "c:\system.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:4488

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Size 471B
SHA256 f4a1f2b28c9eeac4af29803c6803961aab329ca1753a70ad157618c299b7ea48
MD5 526c40c41732e5b3d962f781fbbae134
SHA1 baa42198e292fdb90b0e2b290da206b650ae8bd5
SHA512 d2a161bdedc2354dea4ffc62d62d0a6625c2ff93d2254cf038badeb0c2f9da5b5afaa5be0e647c8342d2b0976018f3570ee0aeb0a7f158d4562fa9c9024a07c0
MD5 SHA1 SHA512

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7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Size 404B
SHA256 73032ea767950dbd04a6823e8bea96777432bac4edc470e017ff3ee9554b1cd5
MD5 a8d6f871a124f6dbde73f49011c53282
SHA1 489fb667456d584018594f474fab64cea0b81ab2
SHA512 ba2ff15595c0d406fefeb6a55b1dbec62287d99313203e6ea7e2106e2ac582445d8f692599137b818bab198ba219e2c34cfa275fe87706f16a84c23a5018d307
MD5 SHA1 SHA512

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suggestions[1].en-US

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\8R55UT9S\suggestions[1].en-US
Size 17KB
SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
MD5 5a34cb996293fde2cb7a4ac89587393a
SHA1 3c96c993500690d1a77873cd62bc639b3a10653f
SHA512 e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
SSDEEP 384:K4gN8sGygaEKfWYSJUKbO7UckxtBjCdY7mO3D0C5l+piEieDSV126ry1/XSGKwG3:K4gNFXiKfWfJ1Kockxbd7mAt5Mp5ie2F
MD5 SHA1 SHA512 SSDEEP

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windows.exe

Path C:\WINDOWS\windows.exe
Size 55KB
SHA256 5f7314a6f9847b9707584f97bc98c7fcba92f60664ddc445eaeda1fde79bae65
MD5 42df4b6ccf4d7ecb6d0ee6742b633213
SHA1 99468d9c9849fe395fb8f395de6aaf4020e65d2a
SHA512 0fae5315987d3a2d4bc8842f9b0621a6bf27a6a2942e86706a037520984f033741bb3954b432df5425d8c716fe9f64a1793e6c0d847fe8e3efa2c48127b3ee11
SSDEEP 1536:/hBZ1b9c409y1G1i35Bo01i/gcU8eVTOK/YqjYYamvbtb:HZl2zoxV1i/NU82OMYcYYamv5b
MD5 SHA1 SHA512 SSDEEP

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system.exe

Path C:\system.exe
Size 55KB
SHA256 7e4dcd7e400fc7a3cb10f03716135ae94166554bbcc7f9fd79197ec7939ec78a
MD5 a06311859ac07bd59fd5393eb0a76777
SHA1 6b76beeecaa136459101a641c76ac3777535e9c0
SHA512 a22d81d2592f4d237d801394ef71882f1dd2e0515337de40d94925f55cec3e7368ac6269555d86da6827c44fdfdf850df282cbc531fb6b9c197c08424ddb9905
SSDEEP 1536:RhBZ1b9c409y1G1i35Bo01i/gcU8eVTOK/YqjYYamvbtb:BZl2zoxV1i/NU82OMYcYYamv5b
MD5 SHA1 SHA512 SSDEEP

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memory/3188-0-0x0000000000400000-0x0000000000429000-memory.dmp

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memory/3188-20-0x0000000000400000-0x0000000000429000-memory.dmp

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