61a2be81c4b96cc8404bdf4ef1085445277de8d519459f5350dd0ca3fe47b98a

Analysis

max time kernel
74s
max time network
119s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
25/08/2024, 09:36

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General

Target

a9b79ea4ebc364778d7a234fb1802c80N.exe
Size

472KB
MD5

a9b79ea4ebc364778d7a234fb1802c80
SHA1

e692cb70b4289dfc0a758c8cd134e17b36af77a8
SHA256

61a2be81c4b96cc8404bdf4ef1085445277de8d519459f5350dd0ca3fe47b98a
SHA512

3ea1efbe45450163d575502cadfbc6d9f3bb91df1629b50ad50a6d66c488e2d49a0b34e1d60345b0f9a55c156e88d13e61e40e5d77a145bd356bddbe87d10399
SSDEEP

12288:a5yUChnrsy/Ay4aUi8YRVkvtmFW/OZM9+1+gWQbHyuG9peWx5XyyzcW3bROnkgR:a5yUChrsYT8YRivyW/eMIFM900Xyy3bs

Score

10^/10

discovery evasion persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 3 IoCs

persistence

Winlogon Helper DLL

T1547.004

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-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	h2s.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	lsass.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	nacl.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
2216	h2s.exe
2920	lsass.exe
1620	h2s.exe
2416	nacl.exe
1420	lsass.exe
2036	lsass.exe

Loads dropped DLL 4 IoCs

pid	Process
1624	a9b79ea4ebc364778d7a234fb1802c80N.exe
1624	a9b79ea4ebc364778d7a234fb1802c80N.exe
1624	a9b79ea4ebc364778d7a234fb1802c80N.exe
2216	h2s.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1624-0-0x0000000000400000-0x0000000000476000-memory.dmp	upx
behavioral1/files/0x00060000000174d0-8.dat	upx
behavioral1/memory/1624-23-0x0000000002590000-0x0000000002606000-memory.dmp	upx
behavioral1/memory/1624-63-0x0000000000400000-0x0000000000476000-memory.dmp	upx
behavioral1/memory/1620-70-0x0000000000400000-0x0000000000476000-memory.dmp	upx
behavioral1/memory/1420-69-0x0000000000400000-0x0000000000476000-memory.dmp	upx
behavioral1/memory/2416-68-0x0000000000400000-0x0000000000476000-memory.dmp	upx
behavioral1/memory/2216-81-0x0000000000400000-0x0000000000476000-memory.dmp	upx
behavioral1/memory/2036-89-0x0000000000400000-0x0000000000476000-memory.dmp	upx
behavioral1/memory/1624-90-0x0000000000400000-0x0000000000476000-memory.dmp	upx
behavioral1/memory/1420-71-0x0000000000400000-0x0000000000476000-memory.dmp	upx
behavioral1/memory/2920-92-0x0000000000400000-0x0000000000476000-memory.dmp	upx
behavioral1/memory/2416-93-0x0000000000400000-0x0000000000476000-memory.dmp	upx

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\pikachu = "C:\\WINDOWS\\nacl.exe"	h2s.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\pikachu = "C:\\WINDOWS\\nacl.exe"	lsass.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\pikachu = "C:\\WINDOWS\\nacl.exe"	nacl.exe

Network Share Discovery 1 TTPs
Attempt to gather information on host network.
discovery

Network Share Discovery
T1135

Drops file in Windows directory 12 IoCs

description	ioc	Process
File opened for modification	C:\WINDOWS\nacl.exe	h2s.exe
File opened for modification	C:\WINDOWS\h2s.exe	a9b79ea4ebc364778d7a234fb1802c80N.exe
File opened for modification	C:\WINDOWS\nacl.exe	a9b79ea4ebc364778d7a234fb1802c80N.exe
File created	C:\WINDOWS\system\lsass.exe	h2s.exe
File created	C:\WINDOWS\system\lsass.exe	a9b79ea4ebc364778d7a234fb1802c80N.exe
File opened for modification	C:\WINDOWS\system\lsass.exe	a9b79ea4ebc364778d7a234fb1802c80N.exe
File created	C:\WINDOWS\nacl.exe	a9b79ea4ebc364778d7a234fb1802c80N.exe
File created	C:\WINDOWS\nacl.exe	h2s.exe
File opened for modification	C:\WINDOWS\system\lsass.exe	h2s.exe
File created	C:\WINDOWS\userinit.exe	a9b79ea4ebc364778d7a234fb1802c80N.exe
File opened for modification	C:\WINDOWS\userinit.exe	a9b79ea4ebc364778d7a234fb1802c80N.exe
File created	C:\WINDOWS\h2s.exe	a9b79ea4ebc364778d7a234fb1802c80N.exe

System Location Discovery: System Language Discovery 1 TTPs 21 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	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a9b79ea4ebc364778d7a234fb1802c80N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lsass.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nacl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lsass.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	h2s.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.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	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	h2s.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lsass.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Internet Explorer\Toolbar	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Internet Explorer\Toolbar\Locked = "1"	explorer.exe

Modifies registry class 37 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\0\NodeSlot = "1"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\KnownFolderDerivedFolderType = "{57807898-8C4F-4462-BB63-71042380B109}"	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_Classes\Local Settings	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_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-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic"	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0 = 5200310000000000e4580384122041707044617461003c0008000400efbee4580384e45803842a000000eb0100000000020000000000000000000000000000004100700070004400610074006100000016000000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0 = 4c00310000000000e458c58610204c6f63616c00380008000400efbee4580384e458c5862a000000fe0100000000020000000000000000000000000000004c006f00630061006c00000014000000	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 74003100000000001959924c1100557365727300600008000400efbeee3a851a1959924c2a000000e601000000000100000000000000000036000000000055007300650072007300000040007300680065006c006c00330032002e0064006c006c002c002d0032003100380031003300000014000000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0 = 4a003100000000001959924c102054656d700000360008000400efbee45803841959924c2a000000ff010000000002000000000000000000000000000000540065006d007000000014000000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\0 = 88003100000000001959924c10204139423739457e310000700008000400efbe1959924c1959924c2a0000002b720100000007000000000000000000000000000000610039006200370039006500610034006500620063003300360034003700370038006400370061003200330034006600620031003800300032006300380030004e00000018000000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 4c00310000000000e458148f100041646d696e00380008000400efbee4580284e458148f2a00000030000000000004000000000000000000000000000000410064006d0069006e00000014000000	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\0	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 19002f433a5c000000000000000000000000000000000000000000	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0	explorer.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2216	h2s.exe
2920	lsass.exe
2216	h2s.exe
1620	h2s.exe
1420	lsass.exe
2920	lsass.exe
2416	nacl.exe
2036	lsass.exe
2416	nacl.exe
2216	h2s.exe
2920	lsass.exe
2416	nacl.exe
2216	h2s.exe
2920	lsass.exe
2416	nacl.exe
2216	h2s.exe
2920	lsass.exe
2416	nacl.exe
2216	h2s.exe
2920	lsass.exe
2416	nacl.exe
2216	h2s.exe
2920	lsass.exe
2416	nacl.exe
2216	h2s.exe
2920	lsass.exe
2416	nacl.exe
2216	h2s.exe
2920	lsass.exe
2416	nacl.exe
2216	h2s.exe
2920	lsass.exe
2416	nacl.exe
2216	h2s.exe
2416	nacl.exe
2920	lsass.exe
2216	h2s.exe
2416	nacl.exe
2920	lsass.exe
2216	h2s.exe
2416	nacl.exe
2920	lsass.exe
2216	h2s.exe
2416	nacl.exe
2920	lsass.exe
2216	h2s.exe
2416	nacl.exe
2920	lsass.exe
2216	h2s.exe
2416	nacl.exe
2920	lsass.exe
2216	h2s.exe
2416	nacl.exe
2920	lsass.exe
2216	h2s.exe
2416	nacl.exe
2920	lsass.exe
2216	h2s.exe
2416	nacl.exe
2920	lsass.exe
2216	h2s.exe
2416	nacl.exe
2216	h2s.exe
2920	lsass.exe

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
1624	a9b79ea4ebc364778d7a234fb1802c80N.exe
1624	a9b79ea4ebc364778d7a234fb1802c80N.exe
2216	h2s.exe
2216	h2s.exe
2920	lsass.exe
2920	lsass.exe
1620	h2s.exe
1620	h2s.exe
1420	lsass.exe
1420	lsass.exe
2416	nacl.exe
2416	nacl.exe
2036	lsass.exe
2036	lsass.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1624 wrote to memory of 1096	1624	a9b79ea4ebc364778d7a234fb1802c80N.exe	30
PID 1624 wrote to memory of 1096	1624	a9b79ea4ebc364778d7a234fb1802c80N.exe	30
PID 1624 wrote to memory of 1096	1624	a9b79ea4ebc364778d7a234fb1802c80N.exe	30
PID 1624 wrote to memory of 1096	1624	a9b79ea4ebc364778d7a234fb1802c80N.exe	30
PID 1624 wrote to memory of 2216	1624	a9b79ea4ebc364778d7a234fb1802c80N.exe	32
PID 1624 wrote to memory of 2216	1624	a9b79ea4ebc364778d7a234fb1802c80N.exe	32
PID 1624 wrote to memory of 2216	1624	a9b79ea4ebc364778d7a234fb1802c80N.exe	32
PID 1624 wrote to memory of 2216	1624	a9b79ea4ebc364778d7a234fb1802c80N.exe	32
PID 1096 wrote to memory of 2728	1096	cmd.exe	33
PID 1096 wrote to memory of 2728	1096	cmd.exe	33
PID 1096 wrote to memory of 2728	1096	cmd.exe	33
PID 1096 wrote to memory of 2728	1096	cmd.exe	33
PID 2216 wrote to memory of 2792	2216	h2s.exe	34
PID 2216 wrote to memory of 2792	2216	h2s.exe	34
PID 2216 wrote to memory of 2792	2216	h2s.exe	34
PID 2216 wrote to memory of 2792	2216	h2s.exe	34
PID 2728 wrote to memory of 2636	2728	net.exe	36
PID 2728 wrote to memory of 2636	2728	net.exe	36
PID 2728 wrote to memory of 2636	2728	net.exe	36
PID 2728 wrote to memory of 2636	2728	net.exe	36
PID 1624 wrote to memory of 2920	1624	a9b79ea4ebc364778d7a234fb1802c80N.exe	37
PID 1624 wrote to memory of 2920	1624	a9b79ea4ebc364778d7a234fb1802c80N.exe	37
PID 1624 wrote to memory of 2920	1624	a9b79ea4ebc364778d7a234fb1802c80N.exe	37
PID 1624 wrote to memory of 2920	1624	a9b79ea4ebc364778d7a234fb1802c80N.exe	37
PID 2792 wrote to memory of 2720	2792	cmd.exe	38
PID 2792 wrote to memory of 2720	2792	cmd.exe	38
PID 2792 wrote to memory of 2720	2792	cmd.exe	38
PID 2792 wrote to memory of 2720	2792	cmd.exe	38
PID 2720 wrote to memory of 2376	2720	net.exe	39
PID 2720 wrote to memory of 2376	2720	net.exe	39
PID 2720 wrote to memory of 2376	2720	net.exe	39
PID 2720 wrote to memory of 2376	2720	net.exe	39
PID 2920 wrote to memory of 2540	2920	lsass.exe	40
PID 2920 wrote to memory of 2540	2920	lsass.exe	40
PID 2920 wrote to memory of 2540	2920	lsass.exe	40
PID 2920 wrote to memory of 2540	2920	lsass.exe	40
PID 2540 wrote to memory of 2588	2540	cmd.exe	42
PID 2540 wrote to memory of 2588	2540	cmd.exe	42
PID 2540 wrote to memory of 2588	2540	cmd.exe	42
PID 2540 wrote to memory of 2588	2540	cmd.exe	42
PID 2588 wrote to memory of 3004	2588	net.exe	43
PID 2588 wrote to memory of 3004	2588	net.exe	43
PID 2588 wrote to memory of 3004	2588	net.exe	43
PID 2588 wrote to memory of 3004	2588	net.exe	43
PID 1624 wrote to memory of 576	1624	a9b79ea4ebc364778d7a234fb1802c80N.exe	45
PID 1624 wrote to memory of 576	1624	a9b79ea4ebc364778d7a234fb1802c80N.exe	45
PID 1624 wrote to memory of 576	1624	a9b79ea4ebc364778d7a234fb1802c80N.exe	45
PID 1624 wrote to memory of 576	1624	a9b79ea4ebc364778d7a234fb1802c80N.exe	45
PID 1624 wrote to memory of 1620	1624	a9b79ea4ebc364778d7a234fb1802c80N.exe	46
PID 1624 wrote to memory of 1620	1624	a9b79ea4ebc364778d7a234fb1802c80N.exe	46
PID 1624 wrote to memory of 1620	1624	a9b79ea4ebc364778d7a234fb1802c80N.exe	46
PID 1624 wrote to memory of 1620	1624	a9b79ea4ebc364778d7a234fb1802c80N.exe	46
PID 2216 wrote to memory of 2416	2216	h2s.exe	48
PID 2216 wrote to memory of 2416	2216	h2s.exe	48
PID 2216 wrote to memory of 2416	2216	h2s.exe	48
PID 2216 wrote to memory of 2416	2216	h2s.exe	48
PID 1620 wrote to memory of 1508	1620	h2s.exe	49
PID 1620 wrote to memory of 1508	1620	h2s.exe	49
PID 1620 wrote to memory of 1508	1620	h2s.exe	49
PID 1620 wrote to memory of 1508	1620	h2s.exe	49
PID 1624 wrote to memory of 1420	1624	a9b79ea4ebc364778d7a234fb1802c80N.exe	50
PID 1624 wrote to memory of 1420	1624	a9b79ea4ebc364778d7a234fb1802c80N.exe	50
PID 1624 wrote to memory of 1420	1624	a9b79ea4ebc364778d7a234fb1802c80N.exe	50
PID 1624 wrote to memory of 1420	1624	a9b79ea4ebc364778d7a234fb1802c80N.exe	50

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\NoFolderOptions = "0"	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\NoRun = "0"	lsass.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	nacl.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"	nacl.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	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"	lsass.exe

C:\Users\Admin\AppData\Local\Temp\a9b79ea4ebc364778d7a234fb1802c80N.exe
"C:\Users\Admin\AppData\Local\Temp\a9b79ea4ebc364778d7a234fb1802c80N.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1624
- C:\Windows\SysWOW64\cmd.exe
  cmd /k net share "phim_hai_hay=C:\Documents and Settings\Temp" & exit &
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1096
- - C:\Windows\SysWOW64\net.exe
    net share "phim_hai_hay=C:\Documents and Settings\Temp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2728
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 share "phim_hai_hay=C:\Documents and Settings\Temp"
      4⤵
      System Location Discovery: System Language Discovery
      PID:2636
- C:\WINDOWS\h2s.exe
  C:\WINDOWS\h2s.exe
  2⤵
  - Modifies WinLogon for persistence
  - Disables RegEdit via registry modification
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:2216
- - C:\Windows\SysWOW64\cmd.exe
    cmd /k net share "phim_hai_hay=C:\Documents and Settings\Temp" & exit &
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2792
  - - C:\Windows\SysWOW64\net.exe
      net share "phim_hai_hay=C:\Documents and Settings\Temp"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2720
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 share "phim_hai_hay=C:\Documents and Settings\Temp"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:2376
- - 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
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    - System policy modification
    PID:2416
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /k net share "phim_hai_hay=C:\Documents and Settings\Temp" & exit &
      4⤵
      System Location Discovery: System Language Discovery
      PID:1912
- - C:\WINDOWS\system\lsass.exe
    C:\WINDOWS\system\lsass.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    PID:2036
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /k net share "phim_hai_hay=C:\Documents and Settings\Temp" & exit &
      4⤵
      System Location Discovery: System Language Discovery
      PID:1636
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:2920
- - C:\Windows\SysWOW64\cmd.exe
    cmd /k net share "phim_hai_hay=C:\Documents and Settings\Temp" & exit &
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2540
  - - C:\Windows\SysWOW64\net.exe
      net share "phim_hai_hay=C:\Documents and Settings\Temp"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2588
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 share "phim_hai_hay=C:\Documents and Settings\Temp"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:3004
- C:\Windows\SysWOW64\explorer.exe
  explorer a9b79ea4ebc364778d7a234fb1802c80N
  2⤵
  - System Location Discovery: System Language Discovery
  PID:576
- C:\WINDOWS\h2s.exe
  C:\WINDOWS\h2s.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1620
- - C:\Windows\SysWOW64\cmd.exe
    cmd /k net share "phim_hai_hay=C:\Documents and Settings\Temp" & exit &
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1508
- C:\WINDOWS\system\lsass.exe
  C:\WINDOWS\system\lsass.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:1420
- - C:\Windows\SysWOW64\cmd.exe
    cmd /k net share "phim_hai_hay=C:\Documents and Settings\Temp" & exit &
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1724

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies Internet Explorer settings
- Modifies registry class
PID:2768

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

Modify Registry

T1112

Credential Access

Discovery

Network Share Discovery

T1135

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
578B

MD5
4cedd41692993cf5a0a40baeb724b871

SHA1
fc1eeb1d88966ea4a816bcbdab320830b6f70261

SHA256
fc50ea976a803f4b75f0754c470753049cb6ad93466ec9a55f0b922e112a7695

SHA512
e7124fdba0a6580da6c48cd77777c6aa1aa23f304db8383551931db1e5e814d2d03de92eeaeeb64f4a0654ee7de640956abeffdd94bcd23c08a875cdc6907862

Download Submit
C:\Windows\h2s.exe

Filesize
472KB

MD5
a9b79ea4ebc364778d7a234fb1802c80

SHA1
e692cb70b4289dfc0a758c8cd134e17b36af77a8

SHA256
61a2be81c4b96cc8404bdf4ef1085445277de8d519459f5350dd0ca3fe47b98a

SHA512
3ea1efbe45450163d575502cadfbc6d9f3bb91df1629b50ad50a6d66c488e2d49a0b34e1d60345b0f9a55c156e88d13e61e40e5d77a145bd356bddbe87d10399

Download Submit
memory/1420-64-0x00000000001B0000-0x00000000001C0000-memory.dmp

Filesize
64KB

Download
memory/1420-71-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1420-69-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1620-70-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1624-23-0x0000000002590000-0x0000000002606000-memory.dmp

Filesize
472KB

Download
memory/1624-63-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1624-49-0x0000000003BF0000-0x0000000003C66000-memory.dmp

Filesize
472KB

Download
memory/1624-0-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1624-90-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1624-39-0x0000000002590000-0x0000000002606000-memory.dmp

Filesize
472KB

Download
memory/1624-24-0x0000000002590000-0x0000000002606000-memory.dmp

Filesize
472KB

Download
memory/2036-89-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/2216-81-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/2416-93-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/2416-68-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/2768-91-0x0000000003A10000-0x0000000003A20000-memory.dmp

Filesize
64KB

Download
memory/2920-92-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download