glupteba | 4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69

Analysis

max time kernel
149s
max time network
129s
platform
windows11-21h2_x64
resource
win11-20240412-en
resource tags

arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
submitted
25/04/2024, 09:45

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
Size 4.2MB
Sample240425-lrfdeahe69
SHA256 4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69
MD5 1bba3946d2b33f29fce0f697c710cddb
SHA1 94626d31e5024c9ad34d8e7e1fa6836ac925118c
SHA512 037d9ad6a70d27b94b0851d47ea975c643e6716acc6a27dd7754125ff3e66876d421f09a21328eeb48befb006c7e275d7e47e5bfca4fdeddbf24834839479465
SSDEEP 98304:CHpMxDemVqIpADKfdGpiZF6VsUJaz5bqFpk/eZ:gpKDzpjf8c3q/fZ
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 19 IoCs

resource	yara_rule
behavioral2/memory/1044-2-0x00000000052C0000-0x0000000005BAB000-memory.dmp	family_glupteba
behavioral2/memory/1044-3-0x0000000000400000-0x000000000300A000-memory.dmp	family_glupteba
behavioral2/memory/1044-52-0x0000000000400000-0x000000000300A000-memory.dmp	family_glupteba
behavioral2/memory/1044-54-0x00000000052C0000-0x0000000005BAB000-memory.dmp	family_glupteba
behavioral2/memory/1840-57-0x0000000000400000-0x000000000300A000-memory.dmp	family_glupteba
behavioral2/memory/1840-100-0x0000000000400000-0x000000000300A000-memory.dmp	family_glupteba
behavioral2/memory/1840-136-0x0000000000400000-0x000000000300A000-memory.dmp	family_glupteba
behavioral2/memory/1840-148-0x0000000000400000-0x000000000300A000-memory.dmp	family_glupteba
behavioral2/memory/440-179-0x0000000000400000-0x000000000300A000-memory.dmp	family_glupteba
behavioral2/memory/440-245-0x0000000000400000-0x000000000300A000-memory.dmp	family_glupteba
behavioral2/memory/440-257-0x0000000000400000-0x000000000300A000-memory.dmp	family_glupteba
behavioral2/memory/440-261-0x0000000000400000-0x000000000300A000-memory.dmp	family_glupteba
behavioral2/memory/440-264-0x0000000000400000-0x000000000300A000-memory.dmp	family_glupteba
behavioral2/memory/440-268-0x0000000000400000-0x000000000300A000-memory.dmp	family_glupteba
behavioral2/memory/440-272-0x0000000000400000-0x000000000300A000-memory.dmp	family_glupteba
behavioral2/memory/440-276-0x0000000000400000-0x000000000300A000-memory.dmp	family_glupteba
behavioral2/memory/440-280-0x0000000000400000-0x000000000300A000-memory.dmp	family_glupteba
behavioral2/memory/440-284-0x0000000000400000-0x000000000300A000-memory.dmp	family_glupteba
behavioral2/memory/440-288-0x0000000000400000-0x000000000300A000-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
4616	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
440	csrss.exe
4636	injector.exe
1244	windefender.exe
5080	windefender.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000200000002aa31-249.dat	upx
behavioral2/memory/1244-255-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/5080-259-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/5080-267-0x0000000000400000-0x00000000008DF000-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\""	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.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 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	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
File created	C:\Windows\rss\csrss.exe	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.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
4832	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
1000	schtasks.exe
2676	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
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,-332 = "E. Europe Standard Time"	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time"	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	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\@tzres.dll,-449 = "Azerbaijan Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-42 = "E. South America Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time"	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time"	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.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
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-91 = "Pacific SA Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2591 = "Tocantins Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time"	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time"	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	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\@tzres.dll,-2892 = "Sudan Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1042 = "Ulaanbaatar Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time"	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	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\@tzres.dll,-2612 = "Bougainville Standard Time"	windefender.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\@tzres.dll,-332 = "E. Europe Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-492 = "India 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"	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time"	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time"	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time"	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.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,-92 = "Pacific SA Standard 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"	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.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"	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	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,-81 = "Atlantic Daylight Time"	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time"	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time"	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time"	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2791 = "Novosibirsk Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2772 = "Omsk Standard Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-391 = "Arab Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-432 = "Iran Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time"	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "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\@tzres.dll,-2872 = "Magallanes Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time"	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time"	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1471 = "Magadan Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-71 = "Newfoundland Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-872 = "Pakistan Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-531 = "Sri Lanka Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time"	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-371 = "Jerusalem Daylight Time"	windefender.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3692	powershell.exe
3692	powershell.exe
1044	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
1044	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
912	powershell.exe
912	powershell.exe
1840	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
1840	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
1840	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
1840	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
1840	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
1840	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
1840	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
1840	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
1840	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
1840	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
1220	powershell.exe
1220	powershell.exe
5028	powershell.exe
5028	powershell.exe
4260	powershell.exe
4260	powershell.exe
4720	powershell.exe
4720	powershell.exe
1472	powershell.exe
1472	powershell.exe
4636	injector.exe
4636	injector.exe
4636	injector.exe
4636	injector.exe
4636	injector.exe
4636	injector.exe
4636	injector.exe
4636	injector.exe
440	csrss.exe
440	csrss.exe
4636	injector.exe
4636	injector.exe
4636	injector.exe
4636	injector.exe
440	csrss.exe
440	csrss.exe
4636	injector.exe
4636	injector.exe
4636	injector.exe
4636	injector.exe
4636	injector.exe
4636	injector.exe
4636	injector.exe
4636	injector.exe
440	csrss.exe
440	csrss.exe
4636	injector.exe
4636	injector.exe
4636	injector.exe
4636	injector.exe
4636	injector.exe
4636	injector.exe
4636	injector.exe
4636	injector.exe
4636	injector.exe
4636	injector.exe
4636	injector.exe
4636	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	3692	powershell.exe
Token: SeDebugPrivilege	1044	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
Token: SeImpersonatePrivilege	1044	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
Token: SeDebugPrivilege	912	powershell.exe
Token: SeDebugPrivilege	1220	powershell.exe
Token: SeDebugPrivilege	5028	powershell.exe
Token: SeDebugPrivilege	4260	powershell.exe
Token: SeDebugPrivilege	4720	powershell.exe
Token: SeDebugPrivilege	1472	powershell.exe
Token: SeSystemEnvironmentPrivilege	440	csrss.exe
Token: SeSecurityPrivilege	4832	sc.exe
Token: SeSecurityPrivilege	4832	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1044 wrote to memory of 3692	1044	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe	82
PID 1044 wrote to memory of 3692	1044	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe	82
PID 1044 wrote to memory of 3692	1044	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe	82
PID 1840 wrote to memory of 912	1840	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe	87
PID 1840 wrote to memory of 912	1840	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe	87
PID 1840 wrote to memory of 912	1840	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe	87
PID 1840 wrote to memory of 2944	1840	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe	89
PID 1840 wrote to memory of 2944	1840	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe	89
PID 2944 wrote to memory of 4616	2944	cmd.exe	91
PID 2944 wrote to memory of 4616	2944	cmd.exe	91
PID 1840 wrote to memory of 1220	1840	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe	92
PID 1840 wrote to memory of 1220	1840	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe	92
PID 1840 wrote to memory of 1220	1840	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe	92
PID 1840 wrote to memory of 5028	1840	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe	94
PID 1840 wrote to memory of 5028	1840	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe	94
PID 1840 wrote to memory of 5028	1840	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe	94
PID 1840 wrote to memory of 440	1840	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe	96
PID 1840 wrote to memory of 440	1840	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe	96
PID 1840 wrote to memory of 440	1840	4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe	96
PID 440 wrote to memory of 4260	440	csrss.exe	97
PID 440 wrote to memory of 4260	440	csrss.exe	97
PID 440 wrote to memory of 4260	440	csrss.exe	97
PID 440 wrote to memory of 4720	440	csrss.exe	103
PID 440 wrote to memory of 4720	440	csrss.exe	103
PID 440 wrote to memory of 4720	440	csrss.exe	103
PID 440 wrote to memory of 1472	440	csrss.exe	105
PID 440 wrote to memory of 1472	440	csrss.exe	105
PID 440 wrote to memory of 1472	440	csrss.exe	105
PID 440 wrote to memory of 4636	440	csrss.exe	107
PID 440 wrote to memory of 4636	440	csrss.exe	107
PID 1244 wrote to memory of 2876	1244	windefender.exe	113
PID 1244 wrote to memory of 2876	1244	windefender.exe	113
PID 1244 wrote to memory of 2876	1244	windefender.exe	113
PID 2876 wrote to memory of 4832	2876	cmd.exe	114
PID 2876 wrote to memory of 4832	2876	cmd.exe	114
PID 2876 wrote to memory of 4832	2876	cmd.exe	114

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\4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
"C:\Users\Admin\AppData\Local\Temp\4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1044
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3692
- C:\Users\Admin\AppData\Local\Temp\4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.exe
  "C:\Users\Admin\AppData\Local\Temp\4a8bc5a61328da91f515b2ecea545285424ddc9fb8e221fafa3a3191f88efd69.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:1840
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:912
- - 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:2944
  - - 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:4616
- - 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:1220
- - 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:5028
- - 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:440
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4260
  - - 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:1000
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:1704
  - - 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:4720
  - - 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:1472
  - - 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:4636
  - - 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:2676
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:1244
    - - 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:2876
      - 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:4832

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:5080

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_01shexvt.3ju.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_01shexvt.3ju.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 e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
MD5 ac4917a885cf6050b1a483e4bc4d2ea5
SHA1 b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA512 092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
MD5 SHA1 SHA512

Submit Download