glupteba | b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5

Analysis

max time kernel
12s
max time network
146s
platform
windows11-21h2_x64
resource
win11-20240426-en
resource tags

arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
submitted
26/04/2024, 17:43

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General

Target
b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Size 4.2MB
Sample240426-waltzagg46
SHA256 b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5
MD5 01a29a811318d36159d367883a94bb7e
SHA1 0e153f540f8f128b973d11c9ff7129b154c4f6ad
SHA512 aa6446786025419cfb31442a929f5d332eae9304bebab2e33d5371ccfc55a32bf22d0dc0f2f94b2c5c68b9aeee4c2d16d5d4c9cc149843a0bfcbc66dde8f73f0
SSDEEP 49152:cCifvx7B+7FOLxQ63IeExjZRrV5rQg00XFP5L9XkQs+hWJEWJawvScCFBuiQf8K4:cCk8+Qet2rTQI1P5Je65g2FBuWsCvPbZ
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba discovery dropper evasion loader persistence upx

Malware Config

Signatures

Glupteba
Glupteba is a modular loader written in Golang with various components.
loader dropper glupteba

Glupteba payload 18 IoCs

resource	yara_rule
behavioral2/memory/3408-2-0x0000000006580000-0x0000000006E6B000-memory.dmp	family_glupteba
behavioral2/memory/3408-3-0x0000000000400000-0x0000000004420000-memory.dmp	family_glupteba
behavioral2/memory/3408-49-0x0000000000400000-0x0000000004420000-memory.dmp	family_glupteba
behavioral2/memory/3408-50-0x0000000006580000-0x0000000006E6B000-memory.dmp	family_glupteba
behavioral2/memory/1692-124-0x0000000000400000-0x0000000004420000-memory.dmp	family_glupteba
behavioral2/memory/1792-201-0x0000000000400000-0x0000000004420000-memory.dmp	family_glupteba
behavioral2/memory/1792-211-0x0000000000400000-0x0000000004420000-memory.dmp	family_glupteba
behavioral2/memory/1792-213-0x0000000000400000-0x0000000004420000-memory.dmp	family_glupteba
behavioral2/memory/1792-215-0x0000000000400000-0x0000000004420000-memory.dmp	family_glupteba
behavioral2/memory/1792-217-0x0000000000400000-0x0000000004420000-memory.dmp	family_glupteba
behavioral2/memory/1792-219-0x0000000000400000-0x0000000004420000-memory.dmp	family_glupteba
behavioral2/memory/1792-221-0x0000000000400000-0x0000000004420000-memory.dmp	family_glupteba
behavioral2/memory/1792-223-0x0000000000400000-0x0000000004420000-memory.dmp	family_glupteba
behavioral2/memory/1792-225-0x0000000000400000-0x0000000004420000-memory.dmp	family_glupteba
behavioral2/memory/1792-227-0x0000000000400000-0x0000000004420000-memory.dmp	family_glupteba
behavioral2/memory/1792-229-0x0000000000400000-0x0000000004420000-memory.dmp	family_glupteba
behavioral2/memory/1792-231-0x0000000000400000-0x0000000004420000-memory.dmp	family_glupteba
behavioral2/memory/1792-233-0x0000000000400000-0x0000000004420000-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
3716	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
1792	csrss.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000200000002a9ec-204.dat	upx
behavioral2/memory/916-206-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/1560-208-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/916-210-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/1560-212-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/1560-216-0x0000000000400000-0x00000000008DF000-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-1-5-21-1230210488-3096403634-4129516247-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.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 5 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

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	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
File created	C:\Windows\rss\csrss.exe	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe

Launches sc.exe 1 IoCs

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

pid	Process
4404	sc.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4488	3408	WerFault.exe	77
4900	1692	WerFault.exe	83

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
2956	schtasks.exe
4852	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	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\TrustedPeople\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	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,-2871 = "Magallanes Daylight Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	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,-962 = "Paraguay Standard Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	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,-2891 = "Sudan Daylight Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time"	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	powershell.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
1112	powershell.exe
1112	powershell.exe
3408	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
3408	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
2804	powershell.exe
2804	powershell.exe
1692	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
1692	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
1692	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
1692	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
1692	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
1692	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
1692	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
1692	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
1692	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
1692	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
3384	powershell.exe
3384	powershell.exe
1848	powershell.exe
1848	powershell.exe
1096	powershell.exe
1096	powershell.exe
3456	powershell.exe
3456	powershell.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	1112	powershell.exe
Token: SeDebugPrivilege	3408	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Token: SeImpersonatePrivilege	3408	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
Token: SeDebugPrivilege	2804	powershell.exe
Token: SeDebugPrivilege	3384	powershell.exe
Token: SeDebugPrivilege	1848	powershell.exe
Token: SeDebugPrivilege	1096	powershell.exe
Token: SeDebugPrivilege	3456	powershell.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 3408 wrote to memory of 1112	3408	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe	79
PID 3408 wrote to memory of 1112	3408	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe	79
PID 3408 wrote to memory of 1112	3408	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe	79
PID 1692 wrote to memory of 2804	1692	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe	87
PID 1692 wrote to memory of 2804	1692	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe	87
PID 1692 wrote to memory of 2804	1692	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe	87
PID 1692 wrote to memory of 3680	1692	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe	89
PID 1692 wrote to memory of 3680	1692	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe	89
PID 3680 wrote to memory of 3716	3680	cmd.exe	91
PID 3680 wrote to memory of 3716	3680	cmd.exe	91
PID 1692 wrote to memory of 3384	1692	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe	92
PID 1692 wrote to memory of 3384	1692	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe	92
PID 1692 wrote to memory of 3384	1692	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe	92
PID 1692 wrote to memory of 1848	1692	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe	94
PID 1692 wrote to memory of 1848	1692	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe	94
PID 1692 wrote to memory of 1848	1692	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe	94
PID 1692 wrote to memory of 1792	1692	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe	96
PID 1692 wrote to memory of 1792	1692	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe	96
PID 1692 wrote to memory of 1792	1692	b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe	96
PID 1792 wrote to memory of 1096	1792	csrss.exe	99
PID 1792 wrote to memory of 1096	1792	csrss.exe	99
PID 1792 wrote to memory of 1096	1792	csrss.exe	99
PID 1792 wrote to memory of 3456	1792	csrss.exe	105
PID 1792 wrote to memory of 3456	1792	csrss.exe	105
PID 1792 wrote to memory of 3456	1792	csrss.exe	105

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\b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
"C:\Users\Admin\AppData\Local\Temp\b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3408
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1112
- C:\Users\Admin\AppData\Local\Temp\b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.exe
  "C:\Users\Admin\AppData\Local\Temp\b6f0b1b12f6998c44ed1d21b523852b8ef77cc2c32d8ea1f89a1287a63f59cb5.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:1692
- - 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:2804
- - 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:3680
  - - 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:3716
- - 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:3384
- - 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:1848
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:1792
  - - 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:1096
  - - 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:2956
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:4616
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3456
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      PID:2244
  - - 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:1524
  - - 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:4852
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      PID:916
    - - 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:4580
      - 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:4404
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1692 -s 696
    3⤵
    - Program crash
    PID:4900
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3408 -s 976
  2⤵
  - Program crash
  PID:4488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3408 -ip 3408
1⤵
PID:128

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1692 -ip 1692
1⤵
PID:4736

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
PID:1560

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_x2xfp2dw.5hp.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_x2xfp2dw.5hp.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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