glupteba | ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7

Analysis

max time kernel
21s
max time network
153s
platform
windows11-21h2_x64
resource
win11-20240426-en
resource tags

arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
submitted
19/05/2024, 01:53

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General

Target
ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Size 4.1MB
Sample240519-cbebqsce94
SHA256 ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7
MD5 8af9bd8e585788333de4a08052840441
SHA1 5dcd65fdc2d68d203d7e8d576be6dfba44ec31fa
SHA512 e7cf6ef133d970407c9debaf7ce53e44572a3dae5c2b9f3c6c101cf7d0c5b447733ba7ce9a5a91a69b1c40c3fbfcf4d2578b75fae8ff76868a2fdb145ba66ac1
SSDEEP 98304:8rbgSYZm0VZ47d2LjXdY+WeqK35WW/TEhU3Gu22Q:8rcnZFqd2LRPP3hYhQZQ
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba discovery dropper evasion execution 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/2460-2-0x00000000045B0000-0x0000000004E9B000-memory.dmp	family_glupteba
behavioral2/memory/2460-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2460-99-0x00000000045B0000-0x0000000004E9B000-memory.dmp	family_glupteba
behavioral2/memory/2460-97-0x0000000000400000-0x0000000002361000-memory.dmp	family_glupteba
behavioral2/memory/2460-148-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/1624-147-0x0000000000400000-0x0000000002361000-memory.dmp	family_glupteba
behavioral2/memory/2572-200-0x0000000000400000-0x0000000002361000-memory.dmp	family_glupteba
behavioral2/memory/2572-213-0x0000000000400000-0x0000000002361000-memory.dmp	family_glupteba
behavioral2/memory/2572-217-0x0000000000400000-0x0000000002361000-memory.dmp	family_glupteba
behavioral2/memory/2572-221-0x0000000000400000-0x0000000002361000-memory.dmp	family_glupteba
behavioral2/memory/2572-224-0x0000000000400000-0x0000000002361000-memory.dmp	family_glupteba
behavioral2/memory/2572-228-0x0000000000400000-0x0000000002361000-memory.dmp	family_glupteba
behavioral2/memory/2572-232-0x0000000000400000-0x0000000002361000-memory.dmp	family_glupteba
behavioral2/memory/2572-237-0x0000000000400000-0x0000000002361000-memory.dmp	family_glupteba
behavioral2/memory/2572-241-0x0000000000400000-0x0000000002361000-memory.dmp	family_glupteba
behavioral2/memory/2572-245-0x0000000000400000-0x0000000002361000-memory.dmp	family_glupteba
behavioral2/memory/2572-248-0x0000000000400000-0x0000000002361000-memory.dmp	family_glupteba
behavioral2/memory/2572-252-0x0000000000400000-0x0000000002361000-memory.dmp	family_glupteba
behavioral2/memory/2572-257-0x0000000000400000-0x0000000002361000-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
4588	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
2572	csrss.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3944-207-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/files/0x000200000002aa5e-208.dat	upx
behavioral2/memory/3944-211-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/1376-209-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/1376-215-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/1376-223-0x0000000000400000-0x00000000008DF000-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-1-5-21-2994005945-4089876968-1367784197-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.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 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
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	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
File created	C:\Windows\rss\csrss.exe	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe

Launches sc.exe 1 IoCs

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

pid	Process
3740	sc.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4796	powershell.exe
3944	powershell.exe
2532	powershell.exe
4928	powershell.exe
1656	powershell.exe
2576	powershell.exe
3348	powershell.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
804	schtasks.exe
2384	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	powershell.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
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time"	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

pid	Process
4796	powershell.exe
4796	powershell.exe
2460	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
2460	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
3944	powershell.exe
3944	powershell.exe
1624	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
1624	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
1624	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
1624	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
1624	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
1624	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
1624	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
1624	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
1624	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
1624	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
2532	powershell.exe
2532	powershell.exe
4928	powershell.exe
4928	powershell.exe
1656	powershell.exe
1656	powershell.exe
2576	powershell.exe
2576	powershell.exe
3348	powershell.exe
3348	powershell.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	4796	powershell.exe
Token: SeDebugPrivilege	2460	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Token: SeImpersonatePrivilege	2460	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
Token: SeDebugPrivilege	3944	powershell.exe
Token: SeDebugPrivilege	2532	powershell.exe
Token: SeDebugPrivilege	4928	powershell.exe
Token: SeDebugPrivilege	1656	powershell.exe
Token: SeDebugPrivilege	2576	powershell.exe
Token: SeDebugPrivilege	3348	powershell.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2460 wrote to memory of 4796	2460	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe	81
PID 2460 wrote to memory of 4796	2460	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe	81
PID 2460 wrote to memory of 4796	2460	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe	81
PID 1624 wrote to memory of 3944	1624	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe	86
PID 1624 wrote to memory of 3944	1624	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe	86
PID 1624 wrote to memory of 3944	1624	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe	86
PID 1624 wrote to memory of 5044	1624	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe	88
PID 1624 wrote to memory of 5044	1624	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe	88
PID 5044 wrote to memory of 4588	5044	cmd.exe	90
PID 5044 wrote to memory of 4588	5044	cmd.exe	90
PID 1624 wrote to memory of 2532	1624	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe	91
PID 1624 wrote to memory of 2532	1624	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe	91
PID 1624 wrote to memory of 2532	1624	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe	91
PID 1624 wrote to memory of 4928	1624	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe	93
PID 1624 wrote to memory of 4928	1624	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe	93
PID 1624 wrote to memory of 4928	1624	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe	93
PID 1624 wrote to memory of 2572	1624	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe	95
PID 1624 wrote to memory of 2572	1624	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe	95
PID 1624 wrote to memory of 2572	1624	ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe	95
PID 2572 wrote to memory of 1656	2572	csrss.exe	96
PID 2572 wrote to memory of 1656	2572	csrss.exe	96
PID 2572 wrote to memory of 1656	2572	csrss.exe	96
PID 2572 wrote to memory of 2576	2572	csrss.exe	102
PID 2572 wrote to memory of 2576	2572	csrss.exe	102
PID 2572 wrote to memory of 2576	2572	csrss.exe	102
PID 2572 wrote to memory of 3348	2572	csrss.exe	104
PID 2572 wrote to memory of 3348	2572	csrss.exe	104
PID 2572 wrote to memory of 3348	2572	csrss.exe	104

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\ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
"C:\Users\Admin\AppData\Local\Temp\ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2460
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4796
- C:\Users\Admin\AppData\Local\Temp\ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.exe
  "C:\Users\Admin\AppData\Local\Temp\ab482b36b4e2bdf8e017fd33d0be43e1e0aa1ea3eb82894870aeb166627259f7.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:1624
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Command and Scripting Interpreter: PowerShell
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3944
- - 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:5044
  - - 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:4588
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Command and Scripting Interpreter: PowerShell
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2532
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Command and Scripting Interpreter: PowerShell
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4928
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:2572
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Command and Scripting Interpreter: PowerShell
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1656
  - - 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:804
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:1232
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Command and Scripting Interpreter: PowerShell
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2576
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Command and Scripting Interpreter: PowerShell
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3348
  - - 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:1512
  - - 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:2384
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      PID:3944
    - - 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:4112
      - 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:3740

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
PID:1376

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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_ttozbqhf.zte.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ttozbqhf.zte.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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