glupteba | fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce

Analysis

max time kernel
150s
max time network
148s
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, 15:30

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General

Target
fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Size 4.2MB
Sample240425-sxp85aca5y
SHA256 fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce
MD5 bb77a3f7cc8197e1b0e618d0296854f8
SHA1 afd01235db16003b65212c7afaabebcd75cbdce0
SHA512 2743351bc9d1ca219965e2dd394614fc4c8b3ea3caa21a5deca3a9e8959f682f959a87dd7eba461b6ac0bc074cc5d30360dd6b201cc174d1ff008cc277d6946d
SSDEEP 98304:6+8Pj1ZT6Vr0wZqa219A2D71J0S/rwUCjvn1rKajWGkWvy/KS6wUa/y:6pTT62wIa89A2D71N/UUOgaSZKqUAy
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/3568-2-0x00000000052D0000-0x0000000005BBB000-memory.dmp	family_glupteba
behavioral2/memory/3568-3-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/3568-43-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/3452-45-0x00000000051D0000-0x0000000005ABB000-memory.dmp	family_glupteba
behavioral2/memory/3452-46-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/3452-80-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/3452-110-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/3452-143-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/4780-159-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/4780-240-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/4780-249-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/4780-250-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/4780-253-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/4780-254-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/4780-256-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/4780-258-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/4780-261-0x0000000000400000-0x000000000300B000-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
440	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
4780	csrss.exe
484	injector.exe
4596	windefender.exe
2928	windefender.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000200000002a9be-244.dat	upx
behavioral2/memory/4596-247-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2928-251-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2928-255-0x0000000000400000-0x00000000008DF000-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-1-5-21-3777591257-2471171023-3629228286-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3777591257-2471171023-3629228286-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Manipulates WinMonFS driver. 1 IoCs

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

rootkit evasion

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

Drops file in System32 directory 7 IoCs

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

Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\VBoxMiniRdrDN	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\windefender.exe	csrss.exe
File opened for modification	C:\Windows\windefender.exe	csrss.exe
File opened for modification	C:\Windows\rss	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
File created	C:\Windows\rss\csrss.exe	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe

Launches sc.exe 1 IoCs

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

pid	Process
2460	sc.exe

Program crash 7 IoCs

pid	pid_target	Process	procid_target
2060	2736	WerFault.exe	78
4324	3568	WerFault.exe	76
2228	3568	WerFault.exe	76
4076	3568	WerFault.exe	76
4304	3452	WerFault.exe	85
1004	3452	WerFault.exe	85
1620	3452	WerFault.exe	85

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
2228	schtasks.exe
3300	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,-981 = "Kamchatka Daylight Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	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,-751 = "Tonga Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2062 = "North Korea Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-382 = "South Africa Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	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\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2772 = "Omsk Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1931 = "Russia TZ 11 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\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	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,-841 = "Argentina Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-231 = "Hawaiian Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-601 = "Taipei Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.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,-1912 = "Russia TZ 10 Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.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"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2391 = "Aleutian Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.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\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-272 = "Greenwich Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-371 = "Jerusalem Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time"	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2736	powershell.exe
2736	powershell.exe
3568	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
3568	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
2292	powershell.exe
2292	powershell.exe
3452	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
3452	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
3452	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
3452	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
3452	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
3452	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
3452	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
3452	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
3452	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
3452	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
1676	powershell.exe
1676	powershell.exe
2868	powershell.exe
2868	powershell.exe
2044	powershell.exe
2044	powershell.exe
3152	powershell.exe
3152	powershell.exe
3872	powershell.exe
3872	powershell.exe
484	injector.exe
484	injector.exe
484	injector.exe
484	injector.exe
484	injector.exe
484	injector.exe
4780	csrss.exe
4780	csrss.exe
484	injector.exe
484	injector.exe
484	injector.exe
484	injector.exe
484	injector.exe
484	injector.exe
4780	csrss.exe
4780	csrss.exe
484	injector.exe
484	injector.exe
484	injector.exe
484	injector.exe
4780	csrss.exe
4780	csrss.exe
484	injector.exe
484	injector.exe
484	injector.exe
484	injector.exe
484	injector.exe
484	injector.exe
484	injector.exe
484	injector.exe
484	injector.exe
484	injector.exe
484	injector.exe
484	injector.exe
484	injector.exe
484	injector.exe
484	injector.exe
484	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	2736	powershell.exe
Token: SeDebugPrivilege	3568	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Token: SeImpersonatePrivilege	3568	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
Token: SeDebugPrivilege	2292	powershell.exe
Token: SeDebugPrivilege	1676	powershell.exe
Token: SeDebugPrivilege	2868	powershell.exe
Token: SeDebugPrivilege	2044	powershell.exe
Token: SeDebugPrivilege	3152	powershell.exe
Token: SeDebugPrivilege	3872	powershell.exe
Token: SeSystemEnvironmentPrivilege	4780	csrss.exe
Token: SeSecurityPrivilege	2460	sc.exe
Token: SeSecurityPrivilege	2460	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 3568 wrote to memory of 2736	3568	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe	78
PID 3568 wrote to memory of 2736	3568	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe	78
PID 3568 wrote to memory of 2736	3568	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe	78
PID 3452 wrote to memory of 2292	3452	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe	92
PID 3452 wrote to memory of 2292	3452	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe	92
PID 3452 wrote to memory of 2292	3452	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe	92
PID 3452 wrote to memory of 4476	3452	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe	94
PID 3452 wrote to memory of 4476	3452	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe	94
PID 4476 wrote to memory of 440	4476	cmd.exe	96
PID 4476 wrote to memory of 440	4476	cmd.exe	96
PID 3452 wrote to memory of 1676	3452	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe	97
PID 3452 wrote to memory of 1676	3452	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe	97
PID 3452 wrote to memory of 1676	3452	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe	97
PID 3452 wrote to memory of 2868	3452	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe	99
PID 3452 wrote to memory of 2868	3452	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe	99
PID 3452 wrote to memory of 2868	3452	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe	99
PID 3452 wrote to memory of 4780	3452	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe	101
PID 3452 wrote to memory of 4780	3452	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe	101
PID 3452 wrote to memory of 4780	3452	fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe	101
PID 4780 wrote to memory of 2044	4780	csrss.exe	108
PID 4780 wrote to memory of 2044	4780	csrss.exe	108
PID 4780 wrote to memory of 2044	4780	csrss.exe	108
PID 4780 wrote to memory of 3152	4780	csrss.exe	114
PID 4780 wrote to memory of 3152	4780	csrss.exe	114
PID 4780 wrote to memory of 3152	4780	csrss.exe	114
PID 4780 wrote to memory of 3872	4780	csrss.exe	116
PID 4780 wrote to memory of 3872	4780	csrss.exe	116
PID 4780 wrote to memory of 3872	4780	csrss.exe	116
PID 4780 wrote to memory of 484	4780	csrss.exe	118
PID 4780 wrote to memory of 484	4780	csrss.exe	118
PID 4596 wrote to memory of 3824	4596	windefender.exe	124
PID 4596 wrote to memory of 3824	4596	windefender.exe	124
PID 4596 wrote to memory of 3824	4596	windefender.exe	124
PID 3824 wrote to memory of 2460	3824	cmd.exe	125
PID 3824 wrote to memory of 2460	3824	cmd.exe	125
PID 3824 wrote to memory of 2460	3824	cmd.exe	125

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\fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
"C:\Users\Admin\AppData\Local\Temp\fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3568
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2736
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2736 -s 2336
    3⤵
    - Program crash
    PID:2060
- C:\Users\Admin\AppData\Local\Temp\fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.exe
  "C:\Users\Admin\AppData\Local\Temp\fdd652d1c70bd120c64cd3869430a383b122eaf4c148eef3cb234788a07b55ce.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:3452
- - 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:2292
- - 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:4476
  - - 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:440
- - 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:1676
- - 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:2868
- - 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:4780
  - - 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:2044
  - - 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:2228
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:2252
  - - 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:3152
  - - 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:3872
  - - 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:484
  - - 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:3300
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:4596
    - - 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:3824
      - 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:2460
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3452 -s 624
    3⤵
    - Program crash
    PID:4304
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3452 -s 800
    3⤵
    - Program crash
    PID:1004
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3452 -s 772
    3⤵
    - Program crash
    PID:1620
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3568 -s 912
  2⤵
  - Program crash
  PID:4324
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3568 -s 844
  2⤵
  - Program crash
  PID:2228
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3568 -s 944
  2⤵
  - Program crash
  PID:4076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2736 -ip 2736
1⤵
PID:2844

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 3568 -ip 3568
1⤵
PID:4696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3568 -ip 3568
1⤵
PID:1920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3568 -ip 3568
1⤵
PID:3768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 3452 -ip 3452
1⤵
PID:5096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 3452 -ip 3452
1⤵
PID:2588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3452 -ip 3452
1⤵
PID:4932

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2928

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_ebaort44.blr.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ebaort44.blr.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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