glupteba | 8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1

Analysis

max time kernel
32s
max time network
151s
platform
windows11-21h2_x64
resource
win11-20240412-en
resource tags

arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
submitted
18/04/2024, 12:49

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General

Target
8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Size 4.2MB
Sample240418-p2npbaef61
SHA256 8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1
MD5 1979728dfadbd14fa995c4a38e6ca962
SHA1 3f531cfa5a83567096869031c3b6bac7265a31cb
SHA512 97acfdd86d7158ff4ded3774559fe97d69256c88927e227ebca3ad787ae36ed58bc162e7503bf556835805441d77795cd5f3a7cf6885ba64a490d0f75854b06f
SSDEEP 98304:n+Aa2fy0ZnosWTV9iqGMS2x9Jaw4XzuCQ45SJR+t3gn/:n+AZfy0FoqWJ6YH
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba 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 19 IoCs

resource	yara_rule
behavioral2/memory/2964-2-0x0000000005160000-0x0000000005A4B000-memory.dmp	family_glupteba
behavioral2/memory/2964-3-0x0000000000400000-0x0000000003009000-memory.dmp	family_glupteba
behavioral2/memory/2964-50-0x0000000000400000-0x0000000003009000-memory.dmp	family_glupteba
behavioral2/memory/2964-52-0x0000000005160000-0x0000000005A4B000-memory.dmp	family_glupteba
behavioral2/memory/4564-54-0x0000000000400000-0x0000000003009000-memory.dmp	family_glupteba
behavioral2/memory/4564-112-0x00000000034A0000-0x00000000038A5000-memory.dmp	family_glupteba
behavioral2/memory/4564-129-0x0000000000400000-0x0000000003009000-memory.dmp	family_glupteba
behavioral2/memory/4564-148-0x0000000000400000-0x0000000003009000-memory.dmp	family_glupteba
behavioral2/memory/4372-245-0x0000000000400000-0x0000000003009000-memory.dmp	family_glupteba
behavioral2/memory/4372-254-0x0000000000400000-0x0000000003009000-memory.dmp	family_glupteba
behavioral2/memory/4372-256-0x0000000000400000-0x0000000003009000-memory.dmp	family_glupteba
behavioral2/memory/4372-258-0x0000000000400000-0x0000000003009000-memory.dmp	family_glupteba
behavioral2/memory/4372-260-0x0000000000400000-0x0000000003009000-memory.dmp	family_glupteba
behavioral2/memory/4372-262-0x0000000000400000-0x0000000003009000-memory.dmp	family_glupteba
behavioral2/memory/4372-264-0x0000000000400000-0x0000000003009000-memory.dmp	family_glupteba
behavioral2/memory/4372-266-0x0000000000400000-0x0000000003009000-memory.dmp	family_glupteba
behavioral2/memory/4372-268-0x0000000000400000-0x0000000003009000-memory.dmp	family_glupteba
behavioral2/memory/4372-270-0x0000000000400000-0x0000000003009000-memory.dmp	family_glupteba
behavioral2/memory/4372-272-0x0000000000400000-0x0000000003009000-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
1616	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
4372	csrss.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000200000002a9f7-251.dat	upx
behavioral2/memory/4712-253-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2508-255-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2508-259-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2508-265-0x0000000000400000-0x00000000008DF000-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\""	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe

Drops file in System32 directory 4 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

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	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\rss\csrss.exe	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
File opened for modification	C:\Windows\rss	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe

Launches sc.exe 1 IoCs

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

pid	Process
1560	sc.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2120	2964	WerFault.exe	78
3580	4564	WerFault.exe	86

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
2788	schtasks.exe
3004	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,-1841 = "Russia TZ 4 Daylight Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\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\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,-511 = "Central Asia Daylight Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.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,-2411 = "Marquesas Daylight Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	powershell.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,-682 = "E. Australia Standard Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	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"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.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,-2371 = "Easter Island Daylight Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	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,-742 = "New Zealand Standard Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time"	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
2560	powershell.exe
2560	powershell.exe
2964	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
2964	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
4480	powershell.exe
4480	powershell.exe
4564	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
4564	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
4564	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
4564	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
4564	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
4564	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
4564	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
4564	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
4564	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
4564	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
4216	powershell.exe
4216	powershell.exe
3712	powershell.exe
3712	powershell.exe
1136	powershell.exe
1136	powershell.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	2560	powershell.exe
Token: SeDebugPrivilege	2964	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Token: SeImpersonatePrivilege	2964	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
Token: SeDebugPrivilege	4480	powershell.exe
Token: SeDebugPrivilege	4216	powershell.exe
Token: SeDebugPrivilege	3712	powershell.exe
Token: SeDebugPrivilege	1136	powershell.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2964 wrote to memory of 2560	2964	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe	82
PID 2964 wrote to memory of 2560	2964	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe	82
PID 2964 wrote to memory of 2560	2964	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe	82
PID 4564 wrote to memory of 4480	4564	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe	90
PID 4564 wrote to memory of 4480	4564	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe	90
PID 4564 wrote to memory of 4480	4564	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe	90
PID 4564 wrote to memory of 2932	4564	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe	92
PID 4564 wrote to memory of 2932	4564	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe	92
PID 2932 wrote to memory of 1616	2932	cmd.exe	94
PID 2932 wrote to memory of 1616	2932	cmd.exe	94
PID 4564 wrote to memory of 4216	4564	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe	95
PID 4564 wrote to memory of 4216	4564	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe	95
PID 4564 wrote to memory of 4216	4564	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe	95
PID 4564 wrote to memory of 3712	4564	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe	97
PID 4564 wrote to memory of 3712	4564	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe	97
PID 4564 wrote to memory of 3712	4564	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe	97
PID 4564 wrote to memory of 4372	4564	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe	99
PID 4564 wrote to memory of 4372	4564	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe	99
PID 4564 wrote to memory of 4372	4564	8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe	99
PID 4372 wrote to memory of 1136	4372	csrss.exe	102
PID 4372 wrote to memory of 1136	4372	csrss.exe	102
PID 4372 wrote to memory of 1136	4372	csrss.exe	102

C:\Users\Admin\AppData\Local\Temp\8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
"C:\Users\Admin\AppData\Local\Temp\8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2964
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2560
- C:\Users\Admin\AppData\Local\Temp\8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.exe
  "C:\Users\Admin\AppData\Local\Temp\8a353c58e94700c785548b88b89876b304489871688cca3ba1579cc0d8a881c1.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:4564
- - 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:4480
- - 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:2932
  - - 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:1616
- - 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:4216
- - 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:3712
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:4372
  - - 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:1136
  - - 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:3004
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:1792
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      PID:4136
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      PID:4228
  - - 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:2192
  - - 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:2788
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      PID:4712
    - - 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:496
      - 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:1560
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4564 -s 872
    3⤵
    - Program crash
    PID:3580
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2964 -s 904
  2⤵
  - Program crash
  PID:2120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2964 -ip 2964
1⤵
PID:2000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4564 -ip 4564
1⤵
PID:5012

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
PID:2508

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

__PSScriptPolicyTest_piqmwo5s.hx3.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_piqmwo5s.hx3.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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