glupteba | ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9

General

Target

ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Size

4.1MB
MD5

2478b8bf88214472ff8c85bbb4e16a68
SHA1

caab53865a336d2900c92305671970482cd56a05
SHA256

ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9
SHA512

3484e8ab94d2a743b7793240fcab540de77350ca23dca277949158caaea081769872a03b1bd7960b7c65acbb5ce2fbb1d1490e5fbd02617cc24f9e20422738e6
SSDEEP

98304:chcDO7EgzRJZT3IHKMrqkJWE0LhQ6uMYKrk:cO/LKQqNE0W0k

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 16 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3028-134-0x0000000003080000-0x00000000038F7000-memory.dmp	family_glupteba
behavioral1/memory/3028-135-0x0000000000400000-0x0000000000EA2000-memory.dmp	family_glupteba
behavioral1/memory/4896-137-0x0000000003040000-0x00000000038B7000-memory.dmp	family_glupteba
behavioral1/memory/4896-142-0x0000000000400000-0x0000000000EA2000-memory.dmp	family_glupteba
behavioral1/memory/1876-149-0x0000000000400000-0x0000000000EA2000-memory.dmp	family_glupteba
behavioral1/memory/1876-150-0x0000000000400000-0x0000000000EA2000-memory.dmp	family_glupteba
behavioral1/memory/1876-151-0x0000000000400000-0x0000000000EA2000-memory.dmp	family_glupteba
behavioral1/memory/1876-152-0x0000000000400000-0x0000000000EA2000-memory.dmp	family_glupteba
behavioral1/memory/1876-153-0x0000000000400000-0x0000000000EA2000-memory.dmp	family_glupteba
behavioral1/memory/1876-154-0x0000000000400000-0x0000000000EA2000-memory.dmp	family_glupteba
behavioral1/memory/1876-155-0x0000000000400000-0x0000000000EA2000-memory.dmp	family_glupteba
behavioral1/memory/1876-156-0x0000000000400000-0x0000000000EA2000-memory.dmp	family_glupteba
behavioral1/memory/1876-157-0x0000000000400000-0x0000000000EA2000-memory.dmp	family_glupteba
behavioral1/memory/1876-158-0x0000000000400000-0x0000000000EA2000-memory.dmp	family_glupteba
behavioral1/memory/1876-159-0x0000000000400000-0x0000000000EA2000-memory.dmp	family_glupteba
behavioral1/memory/1876-166-0x0000000000400000-0x0000000000EA2000-memory.dmp	family_glupteba

Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

4496 netsh.exe
Executes dropped EXE 3 IoCs

Processes:

csrss.exeinjector.exef801950a962ddba14caaa44bf084b55c.exe

pid process

1876 csrss.exe
4872 injector.exe
5072 f801950a962ddba14caaa44bf084b55c.exe

pid	process
4496	netsh.exe

pid	process
1876	csrss.exe
4872	injector.exe
5072	f801950a962ddba14caaa44bf084b55c.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe	upx
C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe	upx
behavioral1/memory/5072-165-0x0000000000400000-0x0000000000C25000-memory.dmp	upx
behavioral1/memory/5072-167-0x0000000000400000-0x0000000000C25000-memory.dmp	upx
behavioral1/memory/5072-169-0x0000000000400000-0x0000000000C25000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

csrss.exeff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.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

Processes:

csrss.exe

description ioc process

File opened for modification \??\WinMonFS csrss.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

Processes:

ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe

description ioc process

File opened (read-only) \??\VBoxMiniRdrDN ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe

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

description	ioc	process
File opened (read-only)	\??\VBoxMiniRdrDN	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe

Drops file in Windows directory 2 IoCs

Processes:

ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe

description	ioc	process
File opened for modification	C:\Windows\rss	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
File created	C:\Windows\rss\csrss.exe	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.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
T1053

Processes:

schtasks.exeschtasks.exe

pid process

3364 schtasks.exe
4632 schtasks.exe

pid	process
3364	schtasks.exe
4632	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time"	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exeff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exeinjector.execsrss.exe

pid	process
3028	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
3028	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
4896	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
4896	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
4896	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
4896	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
4896	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
4896	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
4896	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
4896	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
4896	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
4896	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
1876	csrss.exe
1876	csrss.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
1876	csrss.exe
1876	csrss.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe
4872	injector.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.execsrss.exe

description	pid	process
Token: SeDebugPrivilege	3028	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Token: SeImpersonatePrivilege	3028	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
Token: SeSystemEnvironmentPrivilege	1876	csrss.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.execmd.execsrss.exe

description	pid	process	target process
PID 4896 wrote to memory of 5100	4896	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe	cmd.exe
PID 4896 wrote to memory of 5100	4896	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe	cmd.exe
PID 5100 wrote to memory of 4496	5100	cmd.exe	netsh.exe
PID 5100 wrote to memory of 4496	5100	cmd.exe	netsh.exe
PID 4896 wrote to memory of 1876	4896	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe	csrss.exe
PID 4896 wrote to memory of 1876	4896	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe	csrss.exe
PID 4896 wrote to memory of 1876	4896	ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe	csrss.exe
PID 1876 wrote to memory of 4872	1876	csrss.exe	injector.exe
PID 1876 wrote to memory of 4872	1876	csrss.exe	injector.exe
PID 1876 wrote to memory of 5072	1876	csrss.exe	f801950a962ddba14caaa44bf084b55c.exe
PID 1876 wrote to memory of 5072	1876	csrss.exe	f801950a962ddba14caaa44bf084b55c.exe
PID 1876 wrote to memory of 5072	1876	csrss.exe	f801950a962ddba14caaa44bf084b55c.exe

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\ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
"C:\Users\Admin\AppData\Local\Temp\ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3028

C:\Users\Admin\AppData\Local\Temp\ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.exe
"C:\Users\Admin\AppData\Local\Temp\ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9.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:4896

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:5100

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:4496

C:\Windows\rss\csrss.exe
C:\Windows\rss\csrss.exe
3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1876

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:3364

C:\Windows\SYSTEM32\schtasks.exe
schtasks /delete /tn ScheduledUpdate /f
4⤵
PID:3708

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:4872

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:4632

C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
4⤵
- Executes dropped EXE
PID:5072

C:\Windows\SYSTEM32\schtasks.exe
schtasks /delete /tn "csrss" /f
5⤵
PID:3208

C:\Windows\SYSTEM32\schtasks.exe
schtasks /delete /tn "ScheduledUpdate" /f
5⤵
PID:1532

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
Filesize
3.2MB

MD5
f801950a962ddba14caaa44bf084b55c

SHA1
7cadc9076121297428442785536ba0df2d4ae996

SHA256
c3946ec89e15b24b743c46f9acacb58cff47da63f3ce2799d71ed90496b8891f

SHA512
4183bc76bdc84fb779e2e573d9a63d7de47096b63b945f9e335bee95ae28eb208f5ee15f6501ac59623b97c5b77f3455ca313512e7d9803e1704ae22a52459c5

Download Submit
C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
Filesize
3.2MB

MD5
f801950a962ddba14caaa44bf084b55c

SHA1
7cadc9076121297428442785536ba0df2d4ae996

SHA256
c3946ec89e15b24b743c46f9acacb58cff47da63f3ce2799d71ed90496b8891f

SHA512
4183bc76bdc84fb779e2e573d9a63d7de47096b63b945f9e335bee95ae28eb208f5ee15f6501ac59623b97c5b77f3455ca313512e7d9803e1704ae22a52459c5

Download Submit
C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll
Filesize
99KB

MD5
09031a062610d77d685c9934318b4170

SHA1
880f744184e7774f3d14c1bb857e21cc7fe89a6d

SHA256
778bd69af403df3c4e074c31b3850d71bf0e64524bea4272a802ca9520b379dd

SHA512
9a276e1f0f55d35f2bf38eb093464f7065bdd30a660e6d1c62eed5e76d1fb2201567b89d9ae65d2d89dc99b142159e36fb73be8d5e08252a975d50544a7cda27

Download Submit
C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
Filesize
281KB

MD5
d98e33b66343e7c96158444127a117f6

SHA1
bb716c5509a2bf345c6c1152f6e3e1452d39d50d

SHA256
5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

SHA512
705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

Download Submit
C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
Filesize
281KB

MD5
d98e33b66343e7c96158444127a117f6

SHA1
bb716c5509a2bf345c6c1152f6e3e1452d39d50d

SHA256
5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

SHA512
705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

Download Submit
C:\Windows\rss\csrss.exe
Filesize
4.1MB

MD5
2478b8bf88214472ff8c85bbb4e16a68

SHA1
caab53865a336d2900c92305671970482cd56a05

SHA256
ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9

SHA512
3484e8ab94d2a743b7793240fcab540de77350ca23dca277949158caaea081769872a03b1bd7960b7c65acbb5ce2fbb1d1490e5fbd02617cc24f9e20422738e6

Download Submit
C:\Windows\rss\csrss.exe
Filesize
4.1MB

MD5
2478b8bf88214472ff8c85bbb4e16a68

SHA1
caab53865a336d2900c92305671970482cd56a05

SHA256
ff01153d21d254a65f2bdf079eb64445dbfabd254318036189138fb4eba5cda9

SHA512
3484e8ab94d2a743b7793240fcab540de77350ca23dca277949158caaea081769872a03b1bd7960b7c65acbb5ce2fbb1d1490e5fbd02617cc24f9e20422738e6

Download Submit
memory/1876-153-0x0000000000400000-0x0000000000EA2000-memory.dmp

Filesize
10.6MB

Download
memory/1876-166-0x0000000000400000-0x0000000000EA2000-memory.dmp

Filesize
10.6MB

Download
memory/1876-150-0x0000000000400000-0x0000000000EA2000-memory.dmp

Filesize
10.6MB

Download
memory/1876-151-0x0000000000400000-0x0000000000EA2000-memory.dmp

Filesize
10.6MB

Download
memory/1876-152-0x0000000000400000-0x0000000000EA2000-memory.dmp

Filesize
10.6MB

Download
memory/1876-149-0x0000000000400000-0x0000000000EA2000-memory.dmp

Filesize
10.6MB

Download
memory/1876-154-0x0000000000400000-0x0000000000EA2000-memory.dmp

Filesize
10.6MB

Download
memory/1876-155-0x0000000000400000-0x0000000000EA2000-memory.dmp

Filesize
10.6MB

Download
memory/1876-156-0x0000000000400000-0x0000000000EA2000-memory.dmp

Filesize
10.6MB

Download
memory/1876-157-0x0000000000400000-0x0000000000EA2000-memory.dmp

Filesize
10.6MB

Download
memory/1876-158-0x0000000000400000-0x0000000000EA2000-memory.dmp

Filesize
10.6MB

Download
memory/1876-159-0x0000000000400000-0x0000000000EA2000-memory.dmp

Filesize
10.6MB

Download
memory/3028-134-0x0000000003080000-0x00000000038F7000-memory.dmp

Filesize
8.5MB

Download
memory/3028-135-0x0000000000400000-0x0000000000EA2000-memory.dmp

Filesize
10.6MB

Download
memory/4896-137-0x0000000003040000-0x00000000038B7000-memory.dmp

Filesize
8.5MB

Download
memory/4896-142-0x0000000000400000-0x0000000000EA2000-memory.dmp

Filesize
10.6MB

Download
memory/5072-165-0x0000000000400000-0x0000000000C25000-memory.dmp

Filesize
8.1MB

Download
memory/5072-167-0x0000000000400000-0x0000000000C25000-memory.dmp

Filesize
8.1MB

Download
memory/5072-169-0x0000000000400000-0x0000000000C25000-memory.dmp

Filesize
8.1MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads