glupteba | 10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51

Analysis

max time kernel
15s
max time network
148s
platform
windows11-21h2_x64
resource
win11-20240412-en
resource tags

arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
submitted
17/04/2024, 19:08

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General

Target
10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Size 4.2MB
Sample240417-xtafqabb84
SHA256 10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51
MD5 27e27a57745e7beb5021313a3dba3612
SHA1 e40894dcbd73d7c34ac1454627564c9c3ebec58c
SHA512 7fce3b45c85ad51fe1e1d509147734c020920ec4956f3f82875bb638fda8333f2d4b739534262649e2cd76261b1b953b8dadd1b75bfa6640a2c1f12038a93bee
SSDEEP 98304:W+HT2dFOlkJa7jNZC2ePu9ILkthheCYlOaY:PzMKBrC2kuA8hntr
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba discovery dropper evasion loader persistence upx

Malware Config

Signatures

Glupteba
Glupteba is a modular loader written in Golang with various components.
loader dropper glupteba

Glupteba payload 20 IoCs

resource	yara_rule
behavioral2/memory/4908-2-0x00000000053C0000-0x0000000005CAB000-memory.dmp	family_glupteba
behavioral2/memory/4908-3-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/3628-52-0x0000000005220000-0x0000000005B0B000-memory.dmp	family_glupteba
behavioral2/memory/3628-60-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/4908-66-0x00000000053C0000-0x0000000005CAB000-memory.dmp	family_glupteba
behavioral2/memory/4908-79-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/3628-147-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1028-239-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1028-249-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1028-252-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1028-255-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1028-258-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1028-261-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1028-264-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1028-267-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1028-270-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1028-273-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1028-276-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1028-279-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1028-282-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
1908	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
1028	csrss.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000200000002aa0c-243.dat	upx
behavioral2/memory/3876-247-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2316-250-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2316-256-0x0000000000400000-0x00000000008DF000-memory.dmp	upx

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-1-5-21-801765966-3955847401-2235691403-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in System32 directory 5 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe

Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\VBoxMiniRdrDN	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
File created	C:\Windows\rss\csrss.exe	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe

Launches sc.exe 1 IoCs

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

pid	Process
1152	sc.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
4640	schtasks.exe
1244	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time"	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
916	powershell.exe
916	powershell.exe
4908	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
4908	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
3284	powershell.exe
3284	powershell.exe
3628	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
3628	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
3628	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
3628	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
3628	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
3628	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
3628	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
3628	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
3628	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
3628	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
2164	powershell.exe
2164	powershell.exe
1136	powershell.exe
1136	powershell.exe
72	powershell.exe
72	powershell.exe
4992	powershell.exe
4992	powershell.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	916	powershell.exe
Token: SeDebugPrivilege	4908	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Token: SeImpersonatePrivilege	4908	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
Token: SeDebugPrivilege	3284	powershell.exe
Token: SeDebugPrivilege	2164	powershell.exe
Token: SeDebugPrivilege	1136	powershell.exe
Token: SeDebugPrivilege	72	powershell.exe
Token: SeDebugPrivilege	4992	powershell.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 4908 wrote to memory of 916	4908	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe	81
PID 4908 wrote to memory of 916	4908	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe	81
PID 4908 wrote to memory of 916	4908	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe	81
PID 3628 wrote to memory of 3284	3628	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe	106
PID 3628 wrote to memory of 3284	3628	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe	106
PID 3628 wrote to memory of 3284	3628	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe	106
PID 3628 wrote to memory of 3528	3628	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe	88
PID 3628 wrote to memory of 3528	3628	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe	88
PID 3528 wrote to memory of 1908	3528	cmd.exe	109
PID 3528 wrote to memory of 1908	3528	cmd.exe	109
PID 3628 wrote to memory of 2164	3628	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe	91
PID 3628 wrote to memory of 2164	3628	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe	91
PID 3628 wrote to memory of 2164	3628	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe	91
PID 3628 wrote to memory of 1136	3628	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe	93
PID 3628 wrote to memory of 1136	3628	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe	93
PID 3628 wrote to memory of 1136	3628	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe	93
PID 3628 wrote to memory of 1028	3628	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe	95
PID 3628 wrote to memory of 1028	3628	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe	95
PID 3628 wrote to memory of 1028	3628	10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe	95
PID 1028 wrote to memory of 72	1028	csrss.exe	96
PID 1028 wrote to memory of 72	1028	csrss.exe	96
PID 1028 wrote to memory of 72	1028	csrss.exe	96
PID 1028 wrote to memory of 4992	1028	csrss.exe	102
PID 1028 wrote to memory of 4992	1028	csrss.exe	102
PID 1028 wrote to memory of 4992	1028	csrss.exe	102

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\10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
"C:\Users\Admin\AppData\Local\Temp\10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4908
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:916
- C:\Users\Admin\AppData\Local\Temp\10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe
  "C:\Users\Admin\AppData\Local\Temp\10570aba07efb7b81ea85a6cc53a53b8e82670483f40531627793b27da8eab51.exe"
  2⤵
  - Adds Run key to start application
  - Checks for VirtualBox DLLs, possible anti-VM trick
  - Drops file in Windows directory
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3628
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3284
- - C:\Windows\system32\cmd.exe
    C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3528
  - - C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
      4⤵
      Modifies Windows Firewall
      PID:1908
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2164
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1136
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:1028
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:72
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
      4⤵
      Creates scheduled task(s)
      PID:4640
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:3372
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4992
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      PID:912
  - - C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
      C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll
      4⤵
      PID:3284
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
      4⤵
      Creates scheduled task(s)
      PID:1244
    - - C:\Windows\System32\Conhost.exe
        
        \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
        5⤵
        
        PID:1908
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      PID:3876
    - - C:\Windows\SysWOW64\cmd.exe
        
        cmd.exe /C sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)
        5⤵
        
        PID:4820
      - C:\Windows\SysWOW64\sc.exe
        
        sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)
        6⤵
        Launches sc.exe
        
        PID:1152

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
PID:2316

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

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

__PSScriptPolicyTest_k3yc1iia.wd4.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_k3yc1iia.wd4.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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injector.exe

Path C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
Size 281KB
SHA256 5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
MD5 d98e33b66343e7c96158444127a117f6
SHA1 bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA512 705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
SSDEEP 3072:qbHszDaOJ8u2HHFIWr6e29kOnK7qFQ8wMii5I7kGvNjzMuszHshoY46bEydJ+dK9:SA3IlIA6e29vngqS8wMmuooh8z+8F
MD5 SHA1 SHA512 SSDEEP

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powershell.exe.log

Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Size 2KB
SHA256 9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
MD5 d0c46cad6c0778401e21910bd6b56b70
SHA1 7be418951ea96326aca445b8dfe449b2bfa0dca6
SHA512 057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
MD5 SHA1 SHA512

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