90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1

Analysis

max time kernel
73s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
25/11/2022, 20:01

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General

Target

90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe
Size

138KB
MD5

b747d7d3251d18ca0e12f8a845c03213
SHA1

e8d6b7b0eec90a4488d4ad8f291be736907fd27a
SHA256

90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1
SHA512

a27918551e691dc3624826c74afc98e434bc3a14345db01988f25720744e83da3f6e69c7163b61d21eca6eed47cd47c97bb25c4fc5a6bc98c0e9b06477c3e669
SSDEEP

1536:dybBm4TdrvqMa4M7H8JTcdr405kanhduwf+RF:dybBm4TO4bYZ4nahXK

Score

10^/10

evasion persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 3 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\WINDOWS\\userinit.exe"	h2s.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\WINDOWS\\userinit.exe"	lsass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\WINDOWS\\userinit.exe"	nacl.exe

Disables RegEdit via registry modification 3 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	nacl.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	h2s.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	lsass.exe

Disables Task Manager via registry modification
evasion

Drops file in Drivers directory 2 IoCs

description	ioc	Process
File opened for modification	C:\WINDOWS\system32\drivers\etc\hosts	lsass.exe
File opened for modification	C:\WINDOWS\system32\drivers\etc\hosts	nacl.exe

Executes dropped EXE 6 IoCs

pid	Process
4816	h2s.exe
4860	lsass.exe
2716	nacl.exe
1676	lsass.exe
740	h2s.exe
2024	lsass.exe

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1848-132-0x0000000000400000-0x0000000000466000-memory.dmp	upx
behavioral2/files/0x0003000000022dc2-137.dat	upx
behavioral2/files/0x0003000000022dc2-138.dat	upx
behavioral2/files/0x0003000000022dc3-143.dat	upx
behavioral2/files/0x0003000000022dc3-144.dat	upx
behavioral2/memory/4816-147-0x0000000000400000-0x0000000000466000-memory.dmp	upx
behavioral2/memory/4860-149-0x0000000000400000-0x0000000000466000-memory.dmp	upx
behavioral2/files/0x0003000000022dc4-150.dat	upx
behavioral2/files/0x0003000000022dc4-152.dat	upx
behavioral2/files/0x0003000000022dc3-158.dat	upx
behavioral2/files/0x0003000000022dc2-163.dat	upx
behavioral2/memory/1676-164-0x0000000000400000-0x0000000000466000-memory.dmp	upx
behavioral2/memory/2716-167-0x0000000000400000-0x0000000000466000-memory.dmp	upx
behavioral2/memory/740-168-0x0000000000400000-0x0000000000466000-memory.dmp	upx
behavioral2/files/0x0003000000022dc3-171.dat	upx
behavioral2/memory/740-172-0x0000000000400000-0x0000000000466000-memory.dmp	upx
behavioral2/memory/2024-176-0x0000000000400000-0x0000000000466000-memory.dmp	upx
behavioral2/memory/1848-177-0x0000000000400000-0x0000000000466000-memory.dmp	upx
behavioral2/memory/4816-178-0x0000000000400000-0x0000000000466000-memory.dmp	upx
behavioral2/memory/4860-179-0x0000000000400000-0x0000000000466000-memory.dmp	upx
behavioral2/memory/2716-180-0x0000000000400000-0x0000000000466000-memory.dmp	upx

Adds Run key to start application 2 TTPs 6 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pikachu = "C:\\WINDOWS\\nacl.exe"	nacl.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run	h2s.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pikachu = "C:\\WINDOWS\\nacl.exe"	h2s.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run	lsass.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\pikachu = "C:\\WINDOWS\\nacl.exe"	lsass.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run	nacl.exe

Drops file in Windows directory 12 IoCs

description	ioc	Process
File created	C:\WINDOWS\userinit.exe	90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe
File opened for modification	C:\WINDOWS\system\lsass.exe	90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe
File created	C:\WINDOWS\nacl.exe	90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe
File created	C:\WINDOWS\nacl.exe	h2s.exe
File opened for modification	C:\WINDOWS\system\lsass.exe	h2s.exe
File opened for modification	C:\WINDOWS\userinit.exe	90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe
File created	C:\WINDOWS\h2s.exe	90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe
File opened for modification	C:\WINDOWS\h2s.exe	90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe
File created	C:\WINDOWS\system\lsass.exe	90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe
File opened for modification	C:\WINDOWS\nacl.exe	90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe
File created	C:\WINDOWS\system\lsass.exe	h2s.exe
File opened for modification	C:\WINDOWS\nacl.exe	h2s.exe

Modifies Internet Explorer settings 1 TTPs 4 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Toolbar	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\Locked = "1"	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser\ITBar7Layout = 13000000000000000000000020000000100000000000000001000000010700005e01000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	explorer.exe

Modifies registry class 41 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\0 = ca003100000000007a552b2910003930453141367e310000b20009000400efbe7a552b297a552b292e000000a62d02000000020000000000000000000000000000006267b0003900300065003100610036006100620066006300370063003600610063003300320033003400300039003300370065003300300035003700300033006300320038003000390065003700350037003400380030006300660034003000610035006400360033006400340066003400610030006500310030003100330061003100000018000000	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic"	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\Shell\NavBar = 000000000000000000000000000000008b000000870000003153505305d5cdd59c2e1b10939708002b2cf9ae6b0000005a000000007b00360044003800420042003300440033002d0039004400380037002d0034004100390031002d0041004200350036002d003400460033003000430046004600450046004500390046007d005f0057006900640074006800000013000000cc0000000000000000000000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 50003100000000002155b662100041646d696e003c0009000400efbe21550a587a552d292e00000074e1010000000100000000000000000000000000000026200001410064006d0069006e00000014000000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0 = 4e003100000000007a552d29100054656d7000003a0009000400efbe21550a587a552d292e00000093e101000000010000000000000000000000000000003bde8700540065006d007000000014000000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\0\MRUListEx = ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 19002f433a5c000000000000000000000000000000000000000000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0 = 560031000000000021550a5812004170704461746100400009000400efbe21550a587a552d292e0000007fe101000000010000000000000000000000000000008909d9004100700070004400610074006100000016000000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0 = 50003100000000002155fc5a10004c6f63616c003c0009000400efbe21550a587a552d292e00000092e10100000001000000000000000000000000000000a64ac5004c006f00630061006c00000014000000	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 780031000000000021550a581100557365727300640009000400efbe874f77487a552d292e000000c70500000000010000000000000000003a0000000000df3ef30055007300650072007300000040007300680065006c006c00330032002e0064006c006c002c002d0032003100380031003300000014000000	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\0\NodeSlot = "1"	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0	explorer.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1904	explorer.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4816	h2s.exe
4816	h2s.exe
4860	lsass.exe
4860	lsass.exe
4816	h2s.exe
4816	h2s.exe
4860	lsass.exe
4860	lsass.exe
2716	nacl.exe
2716	nacl.exe
1676	lsass.exe
1676	lsass.exe
740	h2s.exe
740	h2s.exe
4860	lsass.exe
4860	lsass.exe
2716	nacl.exe
2716	nacl.exe
4816	h2s.exe
4816	h2s.exe
2024	lsass.exe
2024	lsass.exe
4860	lsass.exe
4860	lsass.exe
2716	nacl.exe
2716	nacl.exe
4816	h2s.exe
4816	h2s.exe
4860	lsass.exe
4860	lsass.exe
2716	nacl.exe
2716	nacl.exe
4816	h2s.exe
4816	h2s.exe
4860	lsass.exe
4860	lsass.exe
2716	nacl.exe
2716	nacl.exe
4816	h2s.exe
4816	h2s.exe
4860	lsass.exe
4860	lsass.exe
2716	nacl.exe
2716	nacl.exe
4860	lsass.exe
4860	lsass.exe
4816	h2s.exe
4816	h2s.exe
2716	nacl.exe
2716	nacl.exe
4860	lsass.exe
4860	lsass.exe
4816	h2s.exe
4816	h2s.exe
2716	nacl.exe
2716	nacl.exe
4860	lsass.exe
4860	lsass.exe
4816	h2s.exe
4816	h2s.exe
4860	lsass.exe
4860	lsass.exe
2716	nacl.exe
2716	nacl.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1904	explorer.exe

Suspicious use of SetWindowsHookEx 16 IoCs

pid	Process
1848	90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe
1848	90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe
4816	h2s.exe
4816	h2s.exe
4860	lsass.exe
4860	lsass.exe
2716	nacl.exe
2716	nacl.exe
1676	lsass.exe
1676	lsass.exe
740	h2s.exe
740	h2s.exe
2024	lsass.exe
2024	lsass.exe
1904	explorer.exe
1904	explorer.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1848 wrote to memory of 4816	1848	90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe	81
PID 1848 wrote to memory of 4816	1848	90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe	81
PID 1848 wrote to memory of 4816	1848	90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe	81
PID 1848 wrote to memory of 4860	1848	90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe	82
PID 1848 wrote to memory of 4860	1848	90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe	82
PID 1848 wrote to memory of 4860	1848	90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe	82
PID 4816 wrote to memory of 2716	4816	h2s.exe	84
PID 4816 wrote to memory of 2716	4816	h2s.exe	84
PID 4816 wrote to memory of 2716	4816	h2s.exe	84
PID 1848 wrote to memory of 4544	1848	90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe	85
PID 1848 wrote to memory of 4544	1848	90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe	85
PID 1848 wrote to memory of 4544	1848	90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe	85
PID 4816 wrote to memory of 1676	4816	h2s.exe	86
PID 4816 wrote to memory of 1676	4816	h2s.exe	86
PID 4816 wrote to memory of 1676	4816	h2s.exe	86
PID 1848 wrote to memory of 740	1848	90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe	87
PID 1848 wrote to memory of 740	1848	90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe	87
PID 1848 wrote to memory of 740	1848	90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe	87
PID 1848 wrote to memory of 2024	1848	90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe	89
PID 1848 wrote to memory of 2024	1848	90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe	89
PID 1848 wrote to memory of 2024	1848	90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe	89

System policy modification 1 TTPs 9 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoRun = "0"	nacl.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFolderOptions = "0"	h2s.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoRun = "0"	h2s.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFolderOptions = "0"	nacl.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoRun = "0"	lsass.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	nacl.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	h2s.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	lsass.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFolderOptions = "0"	lsass.exe

C:\Users\Admin\AppData\Local\Temp\90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe
"C:\Users\Admin\AppData\Local\Temp\90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1848
- C:\WINDOWS\h2s.exe
  C:\WINDOWS\h2s.exe
  2⤵
  - Modifies WinLogon for persistence
  - Disables RegEdit via registry modification
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:4816
- - C:\WINDOWS\nacl.exe
    C:\WINDOWS\nacl.exe
    3⤵
    - Modifies WinLogon for persistence
    - Disables RegEdit via registry modification
    - Drops file in Drivers directory
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    - System policy modification
    PID:2716
- - C:\WINDOWS\system\lsass.exe
    C:\WINDOWS\system\lsass.exe
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    PID:1676
- C:\WINDOWS\system\lsass.exe
  C:\WINDOWS\system\lsass.exe
  2⤵
  - Modifies WinLogon for persistence
  - Disables RegEdit via registry modification
  - Drops file in Drivers directory
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - System policy modification
  PID:4860
- C:\Windows\SysWOW64\explorer.exe
  explorer 90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1
  2⤵
  PID:4544
- C:\WINDOWS\h2s.exe
  C:\WINDOWS\h2s.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:740
- C:\WINDOWS\system\lsass.exe
  C:\WINDOWS\system\lsass.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:2024

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:1904

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4308

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\WINDOWS\SysWOW64\w

Filesize
2KB

MD5
41f66bb0ac50f2d851236170e7c71341

SHA1
59bcec216302151922219b51be8ad8ab6d0b8384

SHA256
ec99cca58b612ce268e6ada818dfcec0acc22dd1bbe372487be9abbdd07ce073

SHA512
d0d223b93236d62d60974d638d9916901c37c32a4b8ef3faebd336850bc1af8b73ce27ac57205a00d97f38ccdd0ad655c9df7e1d7da6ae89de40b173a8639fa6

Download Submit
C:\WINDOWS\SysWOW64\w

Filesize
2KB

MD5
41f66bb0ac50f2d851236170e7c71341

SHA1
59bcec216302151922219b51be8ad8ab6d0b8384

SHA256
ec99cca58b612ce268e6ada818dfcec0acc22dd1bbe372487be9abbdd07ce073

SHA512
d0d223b93236d62d60974d638d9916901c37c32a4b8ef3faebd336850bc1af8b73ce27ac57205a00d97f38ccdd0ad655c9df7e1d7da6ae89de40b173a8639fa6

Download Submit
C:\WINDOWS\SysWOW64\w

Filesize
2KB

MD5
41f66bb0ac50f2d851236170e7c71341

SHA1
59bcec216302151922219b51be8ad8ab6d0b8384

SHA256
ec99cca58b612ce268e6ada818dfcec0acc22dd1bbe372487be9abbdd07ce073

SHA512
d0d223b93236d62d60974d638d9916901c37c32a4b8ef3faebd336850bc1af8b73ce27ac57205a00d97f38ccdd0ad655c9df7e1d7da6ae89de40b173a8639fa6

Download Submit
C:\WINDOWS\h2s.exe

Filesize
138KB

MD5
b747d7d3251d18ca0e12f8a845c03213

SHA1
e8d6b7b0eec90a4488d4ad8f291be736907fd27a

SHA256
90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1

SHA512
a27918551e691dc3624826c74afc98e434bc3a14345db01988f25720744e83da3f6e69c7163b61d21eca6eed47cd47c97bb25c4fc5a6bc98c0e9b06477c3e669

Download Submit
C:\WINDOWS\nacl.exe

Filesize
138KB

MD5
b747d7d3251d18ca0e12f8a845c03213

SHA1
e8d6b7b0eec90a4488d4ad8f291be736907fd27a

SHA256
90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1

SHA512
a27918551e691dc3624826c74afc98e434bc3a14345db01988f25720744e83da3f6e69c7163b61d21eca6eed47cd47c97bb25c4fc5a6bc98c0e9b06477c3e669

Download Submit
C:\WINDOWS\system32\drivers\etc\hosts

Filesize
578B

MD5
4cedd41692993cf5a0a40baeb724b871

SHA1
fc1eeb1d88966ea4a816bcbdab320830b6f70261

SHA256
fc50ea976a803f4b75f0754c470753049cb6ad93466ec9a55f0b922e112a7695

SHA512
e7124fdba0a6580da6c48cd77777c6aa1aa23f304db8383551931db1e5e814d2d03de92eeaeeb64f4a0654ee7de640956abeffdd94bcd23c08a875cdc6907862

Download Submit
C:\WINDOWS\system32\drivers\etc\hosts

Filesize
578B

MD5
4cedd41692993cf5a0a40baeb724b871

SHA1
fc1eeb1d88966ea4a816bcbdab320830b6f70261

SHA256
fc50ea976a803f4b75f0754c470753049cb6ad93466ec9a55f0b922e112a7695

SHA512
e7124fdba0a6580da6c48cd77777c6aa1aa23f304db8383551931db1e5e814d2d03de92eeaeeb64f4a0654ee7de640956abeffdd94bcd23c08a875cdc6907862

Download Submit
C:\WINDOWS\system32\drivers\etc\hosts

Filesize
578B

MD5
4cedd41692993cf5a0a40baeb724b871

SHA1
fc1eeb1d88966ea4a816bcbdab320830b6f70261

SHA256
fc50ea976a803f4b75f0754c470753049cb6ad93466ec9a55f0b922e112a7695

SHA512
e7124fdba0a6580da6c48cd77777c6aa1aa23f304db8383551931db1e5e814d2d03de92eeaeeb64f4a0654ee7de640956abeffdd94bcd23c08a875cdc6907862

Download Submit
C:\WINDOWS\system32\drivers\etc\hosts

Filesize
578B

MD5
4cedd41692993cf5a0a40baeb724b871

SHA1
fc1eeb1d88966ea4a816bcbdab320830b6f70261

SHA256
fc50ea976a803f4b75f0754c470753049cb6ad93466ec9a55f0b922e112a7695

SHA512
e7124fdba0a6580da6c48cd77777c6aa1aa23f304db8383551931db1e5e814d2d03de92eeaeeb64f4a0654ee7de640956abeffdd94bcd23c08a875cdc6907862

Download Submit
C:\WINDOWS\system32\drivers\etc\hosts

Filesize
578B

MD5
4cedd41692993cf5a0a40baeb724b871

SHA1
fc1eeb1d88966ea4a816bcbdab320830b6f70261

SHA256
fc50ea976a803f4b75f0754c470753049cb6ad93466ec9a55f0b922e112a7695

SHA512
e7124fdba0a6580da6c48cd77777c6aa1aa23f304db8383551931db1e5e814d2d03de92eeaeeb64f4a0654ee7de640956abeffdd94bcd23c08a875cdc6907862

Download Submit
C:\WINDOWS\system\lsass.exe

Filesize
138KB

MD5
b747d7d3251d18ca0e12f8a845c03213

SHA1
e8d6b7b0eec90a4488d4ad8f291be736907fd27a

SHA256
90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1

SHA512
a27918551e691dc3624826c74afc98e434bc3a14345db01988f25720744e83da3f6e69c7163b61d21eca6eed47cd47c97bb25c4fc5a6bc98c0e9b06477c3e669

Download Submit
C:\Windows\System\lsass.exe

Filesize
138KB

MD5
b747d7d3251d18ca0e12f8a845c03213

SHA1
e8d6b7b0eec90a4488d4ad8f291be736907fd27a

SHA256
90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1

SHA512
a27918551e691dc3624826c74afc98e434bc3a14345db01988f25720744e83da3f6e69c7163b61d21eca6eed47cd47c97bb25c4fc5a6bc98c0e9b06477c3e669

Download Submit
C:\Windows\System\lsass.exe

Filesize
138KB

MD5
b747d7d3251d18ca0e12f8a845c03213

SHA1
e8d6b7b0eec90a4488d4ad8f291be736907fd27a

SHA256
90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1

SHA512
a27918551e691dc3624826c74afc98e434bc3a14345db01988f25720744e83da3f6e69c7163b61d21eca6eed47cd47c97bb25c4fc5a6bc98c0e9b06477c3e669

Download Submit
C:\Windows\System\lsass.exe

Filesize
138KB

MD5
b747d7d3251d18ca0e12f8a845c03213

SHA1
e8d6b7b0eec90a4488d4ad8f291be736907fd27a

SHA256
90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1

SHA512
a27918551e691dc3624826c74afc98e434bc3a14345db01988f25720744e83da3f6e69c7163b61d21eca6eed47cd47c97bb25c4fc5a6bc98c0e9b06477c3e669

Download Submit
C:\Windows\h2s.exe

Filesize
138KB

MD5
b747d7d3251d18ca0e12f8a845c03213

SHA1
e8d6b7b0eec90a4488d4ad8f291be736907fd27a

SHA256
90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1

SHA512
a27918551e691dc3624826c74afc98e434bc3a14345db01988f25720744e83da3f6e69c7163b61d21eca6eed47cd47c97bb25c4fc5a6bc98c0e9b06477c3e669

Download Submit
C:\Windows\h2s.exe

Filesize
138KB

MD5
b747d7d3251d18ca0e12f8a845c03213

SHA1
e8d6b7b0eec90a4488d4ad8f291be736907fd27a

SHA256
90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1

SHA512
a27918551e691dc3624826c74afc98e434bc3a14345db01988f25720744e83da3f6e69c7163b61d21eca6eed47cd47c97bb25c4fc5a6bc98c0e9b06477c3e669

Download Submit
C:\Windows\nacl.exe

Filesize
138KB

MD5
b747d7d3251d18ca0e12f8a845c03213

SHA1
e8d6b7b0eec90a4488d4ad8f291be736907fd27a

SHA256
90e1a6abfc7c6ac32340937e305703c2809e757480cf40a5d63d4f4a0e1013a1

SHA512
a27918551e691dc3624826c74afc98e434bc3a14345db01988f25720744e83da3f6e69c7163b61d21eca6eed47cd47c97bb25c4fc5a6bc98c0e9b06477c3e669

Download Submit
memory/740-172-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/740-168-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1676-164-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1848-132-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1848-177-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2024-176-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2716-167-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2716-180-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4816-178-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4816-147-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4860-179-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4860-149-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download