zgrat | 43660d12841c026463f346661481cc19a48e18bbb230ceaaa39828ee57d82d2b

Analysis

max time kernel
129s
max time network
146s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08/05/2024, 01:04

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General

Target

81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
Size

1.8MB
MD5

15b75648ad8160565cfd4008ae223ce0
SHA1

2800a25191362b57c9762c74fc668960f11937bc
SHA256

81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d
SHA512

25eb48fd2ea9a2781b6ed82ebc00b6d4df2ddbe57dee366dd39f67f8dcf9c02cf675c9578b11057d07ae0c6d8cc65371971f51df8eac27cc36e0e27d42bc9b0b
SSDEEP

24576:pRr3fEcKSoIu4cMlay9GvZsk8ynlK01Pi5LO1K4Bb/8GeAyb1L5ZXMUJcapQKS3L:TAUpQ8yU26a1KU8ZAyb15ea61pFWcig

Score

10^/10

zgrat persistence rat spyware stealer

Malware Config

Signatures

Detect ZGRat V1 3 IoCs

resource	yara_rule
behavioral1/memory/2524-1-0x0000000000880000-0x0000000000A5A000-memory.dmp	family_zgrat_v1
behavioral1/files/0x0006000000016d3a-24.dat	family_zgrat_v1
behavioral1/memory/2844-47-0x0000000001100000-0x00000000012DA000-memory.dmp	family_zgrat_v1

Modifies WinLogon for persistence 2 TTPs 6 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\Default\\Links\\winlogon.exe\""	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\Default\\Links\\winlogon.exe\", \"C:\\Windows\\Performance\\winlogon.exe\""	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\Default\\Links\\winlogon.exe\", \"C:\\Windows\\Performance\\winlogon.exe\", \"C:\\Recovery\\77984722-d108-11ee-bdd4-c695cbc44580\\Idle.exe\""	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\Default\\Links\\winlogon.exe\", \"C:\\Windows\\Performance\\winlogon.exe\", \"C:\\Recovery\\77984722-d108-11ee-bdd4-c695cbc44580\\Idle.exe\", \"C:\\Windows\\Registration\\CRMLog\\csrss.exe\""	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\Default\\Links\\winlogon.exe\", \"C:\\Windows\\Performance\\winlogon.exe\", \"C:\\Recovery\\77984722-d108-11ee-bdd4-c695cbc44580\\Idle.exe\", \"C:\\Windows\\Registration\\CRMLog\\csrss.exe\", \"C:\\Program Files (x86)\\Common Files\\DESIGNER\\Idle.exe\""	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\Default\\Links\\winlogon.exe\", \"C:\\Windows\\Performance\\winlogon.exe\", \"C:\\Recovery\\77984722-d108-11ee-bdd4-c695cbc44580\\Idle.exe\", \"C:\\Windows\\Registration\\CRMLog\\csrss.exe\", \"C:\\Program Files (x86)\\Common Files\\DESIGNER\\Idle.exe\", \"C:\\Users\\Admin\\AppData\\Local\\Temp\\81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe\""	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe

Process spawned unexpected child process 15 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1848	2596	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2764	2596	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1616	2596	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	824	2596	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1440	2596	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2872	2596	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2328	2596	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2316	2596	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1764	2596	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1608	2596	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2928	2596	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1580	2596	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2732	2596	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2736	2596	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2148	2596	schtasks.exe	28

ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 12 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\Registration\\CRMLog\\csrss.exe\""	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\Registration\\CRMLog\\csrss.exe\""	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\Idle = "\"C:\\Program Files (x86)\\Common Files\\DESIGNER\\Idle.exe\""	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\winlogon = "\"C:\\Users\\Default\\Links\\winlogon.exe\""	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winlogon = "\"C:\\Users\\Default\\Links\\winlogon.exe\""	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\winlogon = "\"C:\\Windows\\Performance\\winlogon.exe\""	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\Idle = "\"C:\\Recovery\\77984722-d108-11ee-bdd4-c695cbc44580\\Idle.exe\""	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Idle = "\"C:\\Recovery\\77984722-d108-11ee-bdd4-c695cbc44580\\Idle.exe\""	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Idle = "\"C:\\Program Files (x86)\\Common Files\\DESIGNER\\Idle.exe\""	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winlogon = "\"C:\\Windows\\Performance\\winlogon.exe\""	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe\""	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe\""	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	\??\c:\Windows\System32\CSCF9773BFC7D43436CB859ECCBC734785.TMP	csc.exe
File created	\??\c:\Windows\System32\ickr0a.exe	csc.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\DESIGNER\Idle.exe	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
File created	C:\Program Files (x86)\Common Files\DESIGNER\6ccacd8608530f	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
File created	C:\Program Files (x86)\Common Files\DESIGNER\Idle.exe	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\Registration\CRMLog\csrss.exe	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
File created	C:\Windows\Registration\CRMLog\886983d96e3d3e	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
File created	C:\Windows\Performance\winlogon.exe	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
File created	C:\Windows\Performance\cc11b995f2a76d	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 18 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
2764	schtasks.exe
1616	schtasks.exe
1764	schtasks.exe
2328	schtasks.exe
1580	schtasks.exe
2148	schtasks.exe
2604	schtasks.exe
2872	schtasks.exe
1608	schtasks.exe
2928	schtasks.exe
2732	schtasks.exe
2464	schtasks.exe
2760	schtasks.exe
1848	schtasks.exe
824	schtasks.exe
1440	schtasks.exe
2316	schtasks.exe
2736	schtasks.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2768	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2844	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
Token: SeDebugPrivilege	2844	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 2484	2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe	32
PID 2524 wrote to memory of 2484	2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe	32
PID 2524 wrote to memory of 2484	2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe	32
PID 2484 wrote to memory of 2512	2484	csc.exe	34
PID 2484 wrote to memory of 2512	2484	csc.exe	34
PID 2484 wrote to memory of 2512	2484	csc.exe	34
PID 2524 wrote to memory of 2404	2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe	50
PID 2524 wrote to memory of 2404	2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe	50
PID 2524 wrote to memory of 2404	2524	81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe	50
PID 2404 wrote to memory of 572	2404	cmd.exe	52
PID 2404 wrote to memory of 572	2404	cmd.exe	52
PID 2404 wrote to memory of 572	2404	cmd.exe	52
PID 2404 wrote to memory of 2768	2404	cmd.exe	53
PID 2404 wrote to memory of 2768	2404	cmd.exe	53
PID 2404 wrote to memory of 2768	2404	cmd.exe	53
PID 2404 wrote to memory of 2844	2404	cmd.exe	54
PID 2404 wrote to memory of 2844	2404	cmd.exe	54
PID 2404 wrote to memory of 2844	2404	cmd.exe	54

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
"C:\Users\Admin\AppData\Local\Temp\81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2524
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\ttandca5\ttandca5.cmdline"
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:2484
- - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
    C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES254C.tmp" "c:\Windows\System32\CSCF9773BFC7D43436CB859ECCBC734785.TMP"
    3⤵
    PID:2512
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\KMlxGx7yLZ.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2404
- - C:\Windows\system32\chcp.com
    chcp 65001
    3⤵
    PID:572
- - C:\Windows\system32\PING.EXE
    ping -n 10 localhost
    3⤵
    - Runs ping.exe
    PID:2768
- - C:\Users\Admin\AppData\Local\Temp\81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe
    "C:\Users\Admin\AppData\Local\Temp\81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:2844

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 6 /tr "'C:\Users\Default\Links\winlogon.exe'" /f
1⤵
- Creates scheduled task(s)
PID:2760

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Users\Default\Links\winlogon.exe'" /rl HIGHEST /f
1⤵
- Creates scheduled task(s)
PID:2604

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 14 /tr "'C:\Users\Default\Links\winlogon.exe'" /rl HIGHEST /f
1⤵
- Creates scheduled task(s)
PID:2464

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 13 /tr "'C:\Windows\Performance\winlogon.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2148

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Windows\Performance\winlogon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1848

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 13 /tr "'C:\Windows\Performance\winlogon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2736

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 5 /tr "'C:\Recovery\77984722-d108-11ee-bdd4-c695cbc44580\Idle.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2732

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Recovery\77984722-d108-11ee-bdd4-c695cbc44580\Idle.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2764

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 14 /tr "'C:\Recovery\77984722-d108-11ee-bdd4-c695cbc44580\Idle.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1580

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 7 /tr "'C:\Windows\Registration\CRMLog\csrss.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2928

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Windows\Registration\CRMLog\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1608

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 5 /tr "'C:\Windows\Registration\CRMLog\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1764

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Common Files\DESIGNER\Idle.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2316

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Program Files (x86)\Common Files\DESIGNER\Idle.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2328

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Common Files\DESIGNER\Idle.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1616

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d8" /sc MINUTE /mo 10 /tr "'C:\Users\Admin\AppData\Local\Temp\81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:824

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d" /sc ONLOGON /tr "'C:\Users\Admin\AppData\Local\Temp\81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2872

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d8" /sc MINUTE /mo 7 /tr "'C:\Users\Admin\AppData\Local\Temp\81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1440

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\KMlxGx7yLZ.bat

Filesize
230B

MD5
e38589b8619ce2383bd759f06c17942b

SHA1
95777477534cd747b3eab9e91d719ee3b4a1f8da

SHA256
5ea75ba6800a6c2fe3c587fb4e57df2db02fda58be1b8520feb0c82485dae4a8

SHA512
e4a8e3907d6b205540310614e964687f626a391f931d3bce38b2e821d8b48387d2c8e390c21c97e18d185d5d19fff81806d8b887c902f14979160c2d3958dce8

Download Submit
C:\Users\Admin\AppData\Local\Temp\RES254C.tmp

Filesize
1KB

MD5
ccff527c2b4ee92c5625f8752bbb774e

SHA1
470e7a91742bb03ed4afa3c3fbfe3eb8d45489e1

SHA256
9a577a7e25a6329ec58ff382a44978b83fbfa0ca284943ed573596c44ded8001

SHA512
807bbfe35e5a21dba7d7db20414ed4c42db7ee127aa0ec8e9ce8f427863e66dd76db53f43f993747b97e69c4930f8a0ec0be8d65841bc26fffd9a12b52905b3f

Download Submit
C:\Users\Default\Links\winlogon.exe

Filesize
1.8MB

MD5
15b75648ad8160565cfd4008ae223ce0

SHA1
2800a25191362b57c9762c74fc668960f11937bc

SHA256
81e18d35c83b04e7ee6288294cdfc7ef57af3c44d44788a21577e808b3a99a9d

SHA512
25eb48fd2ea9a2781b6ed82ebc00b6d4df2ddbe57dee366dd39f67f8dcf9c02cf675c9578b11057d07ae0c6d8cc65371971f51df8eac27cc36e0e27d42bc9b0b

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\ttandca5\ttandca5.0.cs

Filesize
367B

MD5
3f67fe2e028f9a8cce9304eb44c228a3

SHA1
a89c4eeda6fa3a7fd0953b1d070eb2017629f6f3

SHA256
e68b02ee7ded3756b97eac30356f718246facd165c1ab42c119cb88de3a3b7c8

SHA512
8d037e7b014dcd708c25dfaec6b8edce3523ff9173686f07a90d550192c89f16180e1289d5d24b6662b5bc2b696d678f6f4392967fe76815be44915d559ff953

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\ttandca5\ttandca5.cmdline

Filesize
235B

MD5
4dc34b8aa291de790f6e1de45e28881f

SHA1
2664fdeda39238c871b5ae4977cb783e3515400d

SHA256
3f45e36245bb8b6a19c9a383dd86ea86317855774ff7b688f7453b541f1b6be5

SHA512
f081ff0b12753f55f8c6b6c7f5f8ea5aab1a31c980c107b41843e0900b328a094178eac366cdbb47bb6a8ea4d1f158762ffcbe8dce7f99d96f594ae5ec6fa6b0

Download Submit
\??\c:\Windows\System32\CSCF9773BFC7D43436CB859ECCBC734785.TMP

Filesize
1KB

MD5
3ffa0b85adc175bc535d5b61b093b6a5

SHA1
7fa7715f9f18aa1d9edc45935ca867602fa37894

SHA256
f05ea17245f2e54aa3b2a0a8ede3f86af5fb4e4f0cf0a6aa69c4e95103304d46

SHA512
d1034200ad1232d7e36d3d867e701357c9eb8e8ad063743deceb563b24eb099e6ea660e38099cf161c12c97fe11cf6b044a31846949d63d4a121f1692c9e6fde

Download Submit
memory/2524-28-0x000007FEF5CE0000-0x000007FEF66CC000-memory.dmp

Filesize
9.9MB

Download
memory/2524-2-0x000007FEF5CE0000-0x000007FEF66CC000-memory.dmp

Filesize
9.9MB

Download
memory/2524-4-0x000007FEF5CE0000-0x000007FEF66CC000-memory.dmp

Filesize
9.9MB

Download
memory/2524-8-0x0000000000330000-0x000000000034C000-memory.dmp

Filesize
112KB

Download
memory/2524-0-0x000007FEF5CE3000-0x000007FEF5CE4000-memory.dmp

Filesize
4KB

Download
memory/2524-3-0x000007FEF5CE0000-0x000007FEF66CC000-memory.dmp

Filesize
9.9MB

Download
memory/2524-26-0x000007FEF5CE0000-0x000007FEF66CC000-memory.dmp

Filesize
9.9MB

Download
memory/2524-27-0x000007FEF5CE0000-0x000007FEF66CC000-memory.dmp

Filesize
9.9MB

Download
memory/2524-46-0x000007FEF5CE0000-0x000007FEF66CC000-memory.dmp

Filesize
9.9MB

Download
memory/2524-14-0x000007FEF5CE0000-0x000007FEF66CC000-memory.dmp

Filesize
9.9MB

Download
memory/2524-1-0x0000000000880000-0x0000000000A5A000-memory.dmp

Filesize
1.9MB

Download
memory/2524-13-0x0000000000310000-0x000000000031C000-memory.dmp

Filesize
48KB

Download
memory/2524-11-0x0000000000460000-0x0000000000478000-memory.dmp

Filesize
96KB

Download
memory/2524-9-0x000007FEF5CE0000-0x000007FEF66CC000-memory.dmp

Filesize
9.9MB

Download
memory/2524-6-0x0000000000300000-0x000000000030E000-memory.dmp

Filesize
56KB

Download
memory/2844-47-0x0000000001100000-0x00000000012DA000-memory.dmp

Filesize
1.9MB

Download