glupteba | 267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2

Analysis

max time kernel
176s
max time network
190s
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, 19:07

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General

Target
267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Size 4.2MB
Sample240417-xsnlysbb67
SHA256 267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2
MD5 75fae659377cebf89cf61e90c45f24f2
SHA1 362fd4d7a74226cc703ed73a9ece0571e86ab2a5
SHA512 a4cd447eaa6d2e46353c6ec8b6c476400c6b73961103637b03f2d269b52dd25879c6648737dd4ac6d65118cbe6d6f2d410b3172f1647abaf7380a0d266ab36f5
SSDEEP 98304:G+HT2dFOlkJa7jNZC2ePu9ILkthheCYlOaP:/zMKBrC2kuA8hntQ
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 17 IoCs

resource	yara_rule
behavioral2/memory/1032-2-0x0000000005360000-0x0000000005C4B000-memory.dmp	family_glupteba
behavioral2/memory/1032-3-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1032-4-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1032-9-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1032-27-0x0000000005360000-0x0000000005C4B000-memory.dmp	family_glupteba
behavioral2/memory/1032-44-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1032-60-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/5044-63-0x0000000005210000-0x0000000005AFB000-memory.dmp	family_glupteba
behavioral2/memory/5044-64-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/5044-92-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/5044-110-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/5044-140-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/5044-161-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/3324-223-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/3324-254-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/3324-259-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/3324-269-0x0000000000400000-0x000000000310E000-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
2792	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
3324	csrss.exe
3760	injector.exe
4356	windefender.exe
3100	windefender.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000200000002aa32-263.dat	upx
behavioral2/memory/4356-267-0x0000000000400000-0x00000000008DF000-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-1-5-21-825860316-2493133627-3905166409-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-825860316-2493133627-3905166409-1000\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	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
File created	C:\Windows\rss\csrss.exe	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.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
4700	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
1740	schtasks.exe
4420	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,-2341 = "Haiti Daylight Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.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\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.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\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	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\trust	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	powershell.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\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	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\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.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"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.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\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time"	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
248	powershell.exe
248	powershell.exe
1032	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
1032	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
2860	powershell.exe
2860	powershell.exe
5044	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
5044	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
5044	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
5044	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
5044	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
5044	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
5044	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
5044	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
5044	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
5044	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
1344	powershell.exe
1344	powershell.exe
2132	powershell.exe
2132	powershell.exe
3000	powershell.exe
3000	powershell.exe
1332	powershell.exe
1332	powershell.exe
336	powershell.exe
336	powershell.exe
3760	injector.exe
3760	injector.exe
3760	injector.exe
3760	injector.exe
3760	injector.exe
3760	injector.exe
3760	injector.exe
3760	injector.exe
3760	injector.exe
3760	injector.exe
3760	injector.exe
3760	injector.exe
3324	csrss.exe
3324	csrss.exe
3760	injector.exe
3760	injector.exe
3760	injector.exe
3760	injector.exe
3760	injector.exe
3760	injector.exe
3324	csrss.exe
3324	csrss.exe
3760	injector.exe
3760	injector.exe
3324	csrss.exe
3324	csrss.exe
3760	injector.exe
3760	injector.exe
3760	injector.exe
3760	injector.exe
3760	injector.exe
3760	injector.exe
3760	injector.exe
3760	injector.exe
3760	injector.exe
3760	injector.exe
3760	injector.exe
3760	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	248	powershell.exe
Token: SeDebugPrivilege	1032	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Token: SeImpersonatePrivilege	1032	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
Token: SeDebugPrivilege	2860	powershell.exe
Token: SeDebugPrivilege	1344	powershell.exe
Token: SeDebugPrivilege	2132	powershell.exe
Token: SeDebugPrivilege	3000	powershell.exe
Token: SeDebugPrivilege	1332	powershell.exe
Token: SeDebugPrivilege	336	powershell.exe
Token: SeSystemEnvironmentPrivilege	3324	csrss.exe
Token: SeSecurityPrivilege	4700	sc.exe
Token: SeSecurityPrivilege	4700	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1032 wrote to memory of 248	1032	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe	82
PID 1032 wrote to memory of 248	1032	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe	82
PID 1032 wrote to memory of 248	1032	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe	82
PID 5044 wrote to memory of 2860	5044	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe	87
PID 5044 wrote to memory of 2860	5044	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe	87
PID 5044 wrote to memory of 2860	5044	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe	87
PID 5044 wrote to memory of 560	5044	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe	89
PID 5044 wrote to memory of 560	5044	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe	89
PID 560 wrote to memory of 2792	560	cmd.exe	91
PID 560 wrote to memory of 2792	560	cmd.exe	91
PID 5044 wrote to memory of 1344	5044	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe	92
PID 5044 wrote to memory of 1344	5044	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe	92
PID 5044 wrote to memory of 1344	5044	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe	92
PID 5044 wrote to memory of 2132	5044	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe	94
PID 5044 wrote to memory of 2132	5044	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe	94
PID 5044 wrote to memory of 2132	5044	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe	94
PID 5044 wrote to memory of 3324	5044	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe	96
PID 5044 wrote to memory of 3324	5044	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe	96
PID 5044 wrote to memory of 3324	5044	267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe	96
PID 3324 wrote to memory of 3000	3324	csrss.exe	97
PID 3324 wrote to memory of 3000	3324	csrss.exe	97
PID 3324 wrote to memory of 3000	3324	csrss.exe	97
PID 3324 wrote to memory of 1332	3324	csrss.exe	102
PID 3324 wrote to memory of 1332	3324	csrss.exe	102
PID 3324 wrote to memory of 1332	3324	csrss.exe	102
PID 3324 wrote to memory of 336	3324	csrss.exe	105
PID 3324 wrote to memory of 336	3324	csrss.exe	105
PID 3324 wrote to memory of 336	3324	csrss.exe	105
PID 3324 wrote to memory of 3760	3324	csrss.exe	107
PID 3324 wrote to memory of 3760	3324	csrss.exe	107
PID 4356 wrote to memory of 2156	4356	windefender.exe	113
PID 4356 wrote to memory of 2156	4356	windefender.exe	113
PID 4356 wrote to memory of 2156	4356	windefender.exe	113
PID 2156 wrote to memory of 4700	2156	cmd.exe	114
PID 2156 wrote to memory of 4700	2156	cmd.exe	114
PID 2156 wrote to memory of 4700	2156	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\267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
"C:\Users\Admin\AppData\Local\Temp\267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1032
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:248
- C:\Users\Admin\AppData\Local\Temp\267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.exe
  "C:\Users\Admin\AppData\Local\Temp\267f3218865962c91c69db8eba6d5f5e0c0f14d8074d25e5f7684701dc6878e2.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:5044
- - 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:2860
- - 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:560
  - - 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:2792
- - 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:1344
- - 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:2132
- - 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:3324
  - - 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:3000
  - - 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:1740
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:3748
  - - 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:1332
  - - 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:336
  - - 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:3760
  - - 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:4420
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:4356
    - - 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:2156
      - 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:4700

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
PID:3100

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

__PSScriptPolicyTest_pcghzw2q.glr.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_pcghzw2q.glr.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 9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
MD5 d0c46cad6c0778401e21910bd6b56b70
SHA1 7be418951ea96326aca445b8dfe449b2bfa0dca6
SHA512 057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
MD5 SHA1 SHA512

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