glupteba | 24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1

Analysis

max time kernel
26s
max time network
22s
platform
windows11-21h2_x64
resource
win11-20240412-en
resource tags

arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
submitted
19/04/2024, 14:06

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General

Target
24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Size 4.2MB
Sample240419-rel83sec49
SHA256 24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1
MD5 db2f86f571ecd23acdff760266048eb2
SHA1 20d81819908f0e38b41c8070fd2b301e4524420c
SHA512 0b55c35492c38a7815aa805c5e660f67fc085681f6068a2449a0d005171a9db60c29af08d71f209bdea5765919be2ea826c5d38edcc02104d6aebd05e2f78ee5
SSDEEP 98304:zu15A1GiNRFuKfVvdEh8/k6ld6teGU//blllQO5EUt0+BFZRUpdVYd:zaARFuKJWhQkavn//blllQdNaFDGXu
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba discovery dropper evasion loader persistence

Malware Config

Signatures

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

Glupteba payload 7 IoCs

resource	yara_rule
behavioral2/memory/3616-2-0x0000000004040000-0x000000000492B000-memory.dmp	family_glupteba
behavioral2/memory/3616-3-0x0000000000400000-0x0000000001DFD000-memory.dmp	family_glupteba
behavioral2/memory/2760-52-0x0000000003F10000-0x00000000047FB000-memory.dmp	family_glupteba
behavioral2/memory/2760-54-0x0000000000400000-0x0000000001DFD000-memory.dmp	family_glupteba
behavioral2/memory/3616-67-0x0000000000400000-0x0000000001DFD000-memory.dmp	family_glupteba
behavioral2/memory/2760-175-0x0000000000400000-0x0000000001DFD000-memory.dmp	family_glupteba
behavioral2/memory/1000-242-0x0000000000400000-0x0000000001DFD000-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
4108	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
1000	csrss.exe
4200	injector.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3263309122-2820180308-3568046652-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.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 7 IoCs

description	ioc	Process
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
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 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

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	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
File created	C:\Windows\rss\csrss.exe	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
4856	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.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,-511 = "Central Asia Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	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,-841 = "Argentina Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.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\SmartCardRoot	powershell.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
1824	powershell.exe
1824	powershell.exe
3616	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
3616	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
2544	powershell.exe
2544	powershell.exe
2760	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
2760	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
2760	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
2760	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
2760	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
2760	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
2760	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
2760	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
2760	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
2760	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
3928	powershell.exe
3928	powershell.exe
3568	powershell.exe
3568	powershell.exe
2812	powershell.exe
2812	powershell.exe
3128	powershell.exe
3128	powershell.exe
4216	powershell.exe
4216	powershell.exe
4200	injector.exe
4200	injector.exe
4200	injector.exe
4200	injector.exe
4200	injector.exe
4200	injector.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	1824	powershell.exe
Token: SeDebugPrivilege	3616	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Token: SeImpersonatePrivilege	3616	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Token: SeDebugPrivilege	2544	powershell.exe
Token: SeDebugPrivilege	3928	powershell.exe
Token: SeDebugPrivilege	3568	powershell.exe
Token: SeDebugPrivilege	2812	powershell.exe
Token: SeDebugPrivilege	3128	powershell.exe
Token: SeDebugPrivilege	4216	powershell.exe
Token: SeSystemEnvironmentPrivilege	1000	csrss.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3616 wrote to memory of 1824	3616	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	81
PID 3616 wrote to memory of 1824	3616	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	81
PID 3616 wrote to memory of 1824	3616	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	81
PID 2760 wrote to memory of 2544	2760	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	86
PID 2760 wrote to memory of 2544	2760	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	86
PID 2760 wrote to memory of 2544	2760	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	86
PID 2760 wrote to memory of 576	2760	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	88
PID 2760 wrote to memory of 576	2760	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	88
PID 576 wrote to memory of 4108	576	cmd.exe	90
PID 576 wrote to memory of 4108	576	cmd.exe	90
PID 2760 wrote to memory of 3928	2760	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	91
PID 2760 wrote to memory of 3928	2760	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	91
PID 2760 wrote to memory of 3928	2760	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	91
PID 2760 wrote to memory of 3568	2760	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	93
PID 2760 wrote to memory of 3568	2760	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	93
PID 2760 wrote to memory of 3568	2760	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	93
PID 2760 wrote to memory of 1000	2760	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	95
PID 2760 wrote to memory of 1000	2760	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	95
PID 2760 wrote to memory of 1000	2760	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	95
PID 1000 wrote to memory of 2812	1000	csrss.exe	96
PID 1000 wrote to memory of 2812	1000	csrss.exe	96
PID 1000 wrote to memory of 2812	1000	csrss.exe	96
PID 1000 wrote to memory of 3128	1000	csrss.exe	101
PID 1000 wrote to memory of 3128	1000	csrss.exe	101
PID 1000 wrote to memory of 3128	1000	csrss.exe	101
PID 1000 wrote to memory of 4216	1000	csrss.exe	104
PID 1000 wrote to memory of 4216	1000	csrss.exe	104
PID 1000 wrote to memory of 4216	1000	csrss.exe	104
PID 1000 wrote to memory of 4200	1000	csrss.exe	106
PID 1000 wrote to memory of 4200	1000	csrss.exe	106

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\24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
"C:\Users\Admin\AppData\Local\Temp\24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3616
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1824
- C:\Users\Admin\AppData\Local\Temp\24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
  "C:\Users\Admin\AppData\Local\Temp\24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.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:2760
- - 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:2544
- - 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:576
  - - 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:4108
- - 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:3928
- - 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:3568
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1000
  - - 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:2812
  - - 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:4856
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:1640
  - - 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:3128
  - - 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:4216
  - - 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⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:4200

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_hn5kvnwx.awd.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hn5kvnwx.awd.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 e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
MD5 ac4917a885cf6050b1a483e4bc4d2ea5
SHA1 b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA512 092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
MD5 SHA1 SHA512

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