glupteba | dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976

Analysis

max time kernel
150s
max time network
150s
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, 15:23

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
Size 4.2MB
Sample240417-ssmbnsdg79
SHA256 dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976
MD5 3aac9be9b6bea33ea55e27d4dbd955f3
SHA1 796aeecd2008a1784978f414298d4057b03ceb46
SHA512 3232d210d19d59afa2b7d10f5a8572fda20251e858baf1b9b9d504ca6d5c2094172b208646bd92a5a310a0be7a00209a3e978eee5f4cd35154aac71a7825ad9d
SSDEEP 98304:cwoxqRNHtYTbrnnqfLVkrWMdzx639PKF8Qxe:nXR9tYTb7qxEbNx6NSxe
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba discovery dropper evasion loader persistence rootkit 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/2480-2-0x0000000005360000-0x0000000005C4B000-memory.dmp	family_glupteba
behavioral2/memory/2480-3-0x0000000000400000-0x0000000003118000-memory.dmp	family_glupteba
behavioral2/memory/996-44-0x0000000005250000-0x0000000005B3B000-memory.dmp	family_glupteba
behavioral2/memory/996-45-0x0000000000400000-0x0000000003118000-memory.dmp	family_glupteba
behavioral2/memory/2480-82-0x0000000000400000-0x0000000003118000-memory.dmp	family_glupteba
behavioral2/memory/996-134-0x0000000000400000-0x0000000003118000-memory.dmp	family_glupteba
behavioral2/memory/996-145-0x0000000000400000-0x0000000003118000-memory.dmp	family_glupteba
behavioral2/memory/4304-236-0x0000000000400000-0x0000000003118000-memory.dmp	family_glupteba
behavioral2/memory/4304-246-0x0000000000400000-0x0000000003118000-memory.dmp	family_glupteba
behavioral2/memory/4304-249-0x0000000000400000-0x0000000003118000-memory.dmp	family_glupteba
behavioral2/memory/4304-253-0x0000000000400000-0x0000000003118000-memory.dmp	family_glupteba
behavioral2/memory/4304-257-0x0000000000400000-0x0000000003118000-memory.dmp	family_glupteba
behavioral2/memory/4304-261-0x0000000000400000-0x0000000003118000-memory.dmp	family_glupteba
behavioral2/memory/4304-265-0x0000000000400000-0x0000000003118000-memory.dmp	family_glupteba
behavioral2/memory/4304-269-0x0000000000400000-0x0000000003118000-memory.dmp	family_glupteba
behavioral2/memory/4304-273-0x0000000000400000-0x0000000003118000-memory.dmp	family_glupteba
behavioral2/memory/4304-277-0x0000000000400000-0x0000000003118000-memory.dmp	family_glupteba
behavioral2/memory/4304-281-0x0000000000400000-0x0000000003118000-memory.dmp	family_glupteba
behavioral2/memory/4304-286-0x0000000000400000-0x0000000003118000-memory.dmp	family_glupteba
behavioral2/memory/4304-290-0x0000000000400000-0x0000000003118000-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
4520	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
4304	csrss.exe
1996	injector.exe
1492	windefender.exe
4896	windefender.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000200000002aa14-240.dat	upx
behavioral2/memory/1492-244-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/4896-250-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/4896-258-0x0000000000400000-0x00000000008DF000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-801878912-692986033-442676226-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-801878912-692986033-442676226-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.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

Manipulates WinMonFS driver. 1 IoCs

Roottkits write to WinMonFS to hide directories/files from being detected.

rootkit evasion

description	ioc	Process
File opened for modification	\??\WinMonFS	csrss.exe

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 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	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
File created	C:\Windows\rss\csrss.exe	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
File created	C:\Windows\windefender.exe	csrss.exe
File opened for modification	C:\Windows\windefender.exe	csrss.exe

Launches sc.exe 1 IoCs

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

pid	Process
3464	sc.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2192	2196	WerFault.exe	81

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
3768	schtasks.exe
2140	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,-3052 = "Qyzylorda Standard Time"	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time"	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time"	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-751 = "Tonga Daylight Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2181 = "Astrakhan Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-832 = "SA Eastern Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time"	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time"	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time"	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	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\@tzres.dll,-331 = "E. Europe Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-41 = "E. South America Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time"	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)"	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time"	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time"	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time"	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time"	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	powershell.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\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	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\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-831 = "SA Eastern Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time"	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time"	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	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\@tzres.dll,-731 = "Fiji Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time"	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.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\@tzres.dll,-181 = "Mountain Daylight Time (Mexico)"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1871 = "Russia TZ 7 Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-601 = "Taipei Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-131 = "US Eastern Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time"	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time"	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-401 = "Arabic Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2592 = "Tocantins Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-752 = "Tonga Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time"	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time"	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time"	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.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\@tzres.dll,-741 = "New Zealand Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-242 = "Samoa Standard Time"	windefender.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2196	powershell.exe
2196	powershell.exe
2480	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
2480	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
4032	powershell.exe
4032	powershell.exe
996	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
996	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
996	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
996	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
996	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
996	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
996	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
996	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
996	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
996	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
3332	powershell.exe
3332	powershell.exe
4804	powershell.exe
4804	powershell.exe
3452	powershell.exe
3452	powershell.exe
2220	powershell.exe
2220	powershell.exe
4944	powershell.exe
4944	powershell.exe
1996	injector.exe
1996	injector.exe
1996	injector.exe
1996	injector.exe
1996	injector.exe
1996	injector.exe
4304	csrss.exe
4304	csrss.exe
1996	injector.exe
1996	injector.exe
1996	injector.exe
1996	injector.exe
1996	injector.exe
1996	injector.exe
4304	csrss.exe
4304	csrss.exe
1996	injector.exe
1996	injector.exe
4304	csrss.exe
4304	csrss.exe
1996	injector.exe
1996	injector.exe
1996	injector.exe
1996	injector.exe
1996	injector.exe
1996	injector.exe
1996	injector.exe
1996	injector.exe
1996	injector.exe
1996	injector.exe
1996	injector.exe
1996	injector.exe
1996	injector.exe
1996	injector.exe
1996	injector.exe
1996	injector.exe
1996	injector.exe
1996	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	2196	powershell.exe
Token: SeDebugPrivilege	2480	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
Token: SeImpersonatePrivilege	2480	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
Token: SeDebugPrivilege	4032	powershell.exe
Token: SeDebugPrivilege	3332	powershell.exe
Token: SeDebugPrivilege	4804	powershell.exe
Token: SeDebugPrivilege	3452	powershell.exe
Token: SeDebugPrivilege	2220	powershell.exe
Token: SeDebugPrivilege	4944	powershell.exe
Token: SeSystemEnvironmentPrivilege	4304	csrss.exe
Token: SeSecurityPrivilege	3464	sc.exe
Token: SeSecurityPrivilege	3464	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2480 wrote to memory of 2196	2480	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe	81
PID 2480 wrote to memory of 2196	2480	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe	81
PID 2480 wrote to memory of 2196	2480	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe	81
PID 996 wrote to memory of 4032	996	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe	89
PID 996 wrote to memory of 4032	996	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe	89
PID 996 wrote to memory of 4032	996	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe	89
PID 996 wrote to memory of 3944	996	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe	91
PID 996 wrote to memory of 3944	996	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe	91
PID 3944 wrote to memory of 4520	3944	cmd.exe	93
PID 3944 wrote to memory of 4520	3944	cmd.exe	93
PID 996 wrote to memory of 3332	996	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe	94
PID 996 wrote to memory of 3332	996	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe	94
PID 996 wrote to memory of 3332	996	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe	94
PID 996 wrote to memory of 4804	996	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe	96
PID 996 wrote to memory of 4804	996	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe	96
PID 996 wrote to memory of 4804	996	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe	96
PID 996 wrote to memory of 4304	996	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe	98
PID 996 wrote to memory of 4304	996	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe	98
PID 996 wrote to memory of 4304	996	dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe	98
PID 4304 wrote to memory of 3452	4304	csrss.exe	99
PID 4304 wrote to memory of 3452	4304	csrss.exe	99
PID 4304 wrote to memory of 3452	4304	csrss.exe	99
PID 4304 wrote to memory of 2220	4304	csrss.exe	104
PID 4304 wrote to memory of 2220	4304	csrss.exe	104
PID 4304 wrote to memory of 2220	4304	csrss.exe	104
PID 4304 wrote to memory of 4944	4304	csrss.exe	107
PID 4304 wrote to memory of 4944	4304	csrss.exe	107
PID 4304 wrote to memory of 4944	4304	csrss.exe	107
PID 4304 wrote to memory of 1996	4304	csrss.exe	109
PID 4304 wrote to memory of 1996	4304	csrss.exe	109
PID 1492 wrote to memory of 528	1492	windefender.exe	115
PID 1492 wrote to memory of 528	1492	windefender.exe	115
PID 1492 wrote to memory of 528	1492	windefender.exe	115
PID 528 wrote to memory of 3464	528	cmd.exe	116
PID 528 wrote to memory of 3464	528	cmd.exe	116
PID 528 wrote to memory of 3464	528	cmd.exe	116

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\dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
"C:\Users\Admin\AppData\Local\Temp\dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2480
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2196
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2196 -s 2544
    3⤵
    - Program crash
    PID:2192
- C:\Users\Admin\AppData\Local\Temp\dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.exe
  "C:\Users\Admin\AppData\Local\Temp\dbc9626accf372487454b8e436f2f4fd448c6f81e7a22411c7712c9c46ad4976.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:996
- - 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:4032
- - 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:3944
  - - 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:4520
- - 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:3332
- - 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:4804
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Manipulates WinMonFS driver.
    - Drops file in Windows directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4304
  - - 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:3452
  - - 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:3768
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:1900
  - - 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:2220
  - - 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:4944
  - - 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:1996
  - - 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:2140
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:1492
    - - 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⤵
        Suspicious use of WriteProcessMemory
        
        PID:528
      - 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
        Suspicious use of AdjustPrivilegeToken
        
        PID:3464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 352 -p 2196 -ip 2196
1⤵
PID:896

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4896

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

Loading Replay Monitor...

Downloads

__PSScriptPolicyTest_14cdacnj.rxg.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_14cdacnj.rxg.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

Submit Download

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

Submit Download

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

Submit Download