glupteba | d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843

General

Target

d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Size

4.1MB
MD5

0a77ba439676e51941932c708be027b9
SHA1

d03d17cb6a60dfb2b502eab3a41a9276c11c2775
SHA256

d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843
SHA512

f0d2c32839c9d7ed969fe6b5f8a993a51f2ccc8cbe7c1e9d2762734eed29e965edb6257f7bf0b2d5091a2baaac5ee06b96200c5e7fa4cbbe99ae43d7d3e46fe1
SSDEEP

98304:pcQlmdkIy5xRXReogPeSZi7evWLMsK/WCVYvnizGS:zMp0TexWSZi7ev6U/XVYvni/

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

Processes:

resource	yara_rule
behavioral1/memory/4452-134-0x0000000003140000-0x00000000039B7000-memory.dmp	family_glupteba
behavioral1/memory/4452-136-0x0000000000400000-0x0000000000EA3000-memory.dmp	family_glupteba
behavioral1/memory/3976-142-0x0000000000400000-0x0000000000EA3000-memory.dmp	family_glupteba
behavioral1/memory/4824-148-0x0000000000400000-0x0000000000EA3000-memory.dmp	family_glupteba
behavioral1/memory/4824-149-0x0000000000400000-0x0000000000EA3000-memory.dmp	family_glupteba
behavioral1/memory/4824-150-0x0000000000400000-0x0000000000EA3000-memory.dmp	family_glupteba
behavioral1/memory/4824-151-0x0000000000400000-0x0000000000EA3000-memory.dmp	family_glupteba
behavioral1/memory/4824-152-0x0000000000400000-0x0000000000EA3000-memory.dmp	family_glupteba
behavioral1/memory/4824-153-0x0000000000400000-0x0000000000EA3000-memory.dmp	family_glupteba
behavioral1/memory/4824-154-0x0000000000400000-0x0000000000EA3000-memory.dmp	family_glupteba
behavioral1/memory/4824-155-0x0000000000400000-0x0000000000EA3000-memory.dmp	family_glupteba
behavioral1/memory/4824-156-0x0000000000400000-0x0000000000EA3000-memory.dmp	family_glupteba
behavioral1/memory/4824-157-0x0000000000400000-0x0000000000EA3000-memory.dmp	family_glupteba
behavioral1/memory/4824-158-0x0000000000400000-0x0000000000EA3000-memory.dmp	family_glupteba
behavioral1/memory/4824-159-0x0000000000400000-0x0000000000EA3000-memory.dmp	family_glupteba
behavioral1/memory/4824-160-0x0000000000400000-0x0000000000EA3000-memory.dmp	family_glupteba
behavioral1/memory/4824-166-0x0000000000400000-0x0000000000EA3000-memory.dmp	family_glupteba

Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

4320 netsh.exe
Executes dropped EXE 3 IoCs

Processes:

csrss.exeinjector.exef801950a962ddba14caaa44bf084b55c.exe

pid process

4824 csrss.exe
4012 injector.exe
4244 f801950a962ddba14caaa44bf084b55c.exe

pid	process
4320	netsh.exe

pid	process
4824	csrss.exe
4012	injector.exe
4244	f801950a962ddba14caaa44bf084b55c.exe

UPX packed file 3 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/4244-167-0x0000000000400000-0x0000000000C25000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.execsrss.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.exe

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

Query Registry
T1012
Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
rootkit evasion

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:

d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe

description ioc process

File opened (read-only) \??\VBoxMiniRdrDN d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe

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

description	ioc	process
File opened (read-only)	\??\VBoxMiniRdrDN	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe

Drops file in Windows directory 2 IoCs

Processes:

d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe

description	ioc	process
File opened for modification	C:\Windows\rss	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
File created	C:\Windows\rss\csrss.exe	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.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

1516 schtasks.exe
2524 schtasks.exe

pid	process
1516	schtasks.exe
2524	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time"	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exed9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exeinjector.execsrss.exe

pid	process
4452	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
4452	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
3976	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
3976	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
3976	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
3976	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
3976	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
3976	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
3976	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
3976	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
3976	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
3976	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4824	csrss.exe
4824	csrss.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4824	csrss.exe
4824	csrss.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe
4012	injector.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.execsrss.exe

description	pid	process
Token: SeDebugPrivilege	4452	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Token: SeImpersonatePrivilege	4452	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
Token: SeSystemEnvironmentPrivilege	4824	csrss.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.execmd.execsrss.exe

description	pid	process	target process
PID 3976 wrote to memory of 320	3976	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe	cmd.exe
PID 3976 wrote to memory of 320	3976	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe	cmd.exe
PID 320 wrote to memory of 4320	320	cmd.exe	netsh.exe
PID 320 wrote to memory of 4320	320	cmd.exe	netsh.exe
PID 3976 wrote to memory of 4824	3976	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe	csrss.exe
PID 3976 wrote to memory of 4824	3976	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe	csrss.exe
PID 3976 wrote to memory of 4824	3976	d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe	csrss.exe
PID 4824 wrote to memory of 4012	4824	csrss.exe	injector.exe
PID 4824 wrote to memory of 4012	4824	csrss.exe	injector.exe
PID 4824 wrote to memory of 4244	4824	csrss.exe	f801950a962ddba14caaa44bf084b55c.exe
PID 4824 wrote to memory of 4244	4824	csrss.exe	f801950a962ddba14caaa44bf084b55c.exe
PID 4824 wrote to memory of 4244	4824	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\d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
"C:\Users\Admin\AppData\Local\Temp\d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4452

C:\Users\Admin\AppData\Local\Temp\d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.exe
"C:\Users\Admin\AppData\Local\Temp\d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843.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:3976

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:320

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:4320

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:4824

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:1516

C:\Windows\SYSTEM32\schtasks.exe
schtasks /delete /tn ScheduledUpdate /f
4⤵
PID:1544

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:4012

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:2524

C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
4⤵
- Executes dropped EXE
PID:4244

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\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
0a77ba439676e51941932c708be027b9

SHA1
d03d17cb6a60dfb2b502eab3a41a9276c11c2775

SHA256
d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843

SHA512
f0d2c32839c9d7ed969fe6b5f8a993a51f2ccc8cbe7c1e9d2762734eed29e965edb6257f7bf0b2d5091a2baaac5ee06b96200c5e7fa4cbbe99ae43d7d3e46fe1

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

MD5
0a77ba439676e51941932c708be027b9

SHA1
d03d17cb6a60dfb2b502eab3a41a9276c11c2775

SHA256
d9f359335da0117754d28842e36a2d06bcc252454f9a953fb9edda2bd6528843

SHA512
f0d2c32839c9d7ed969fe6b5f8a993a51f2ccc8cbe7c1e9d2762734eed29e965edb6257f7bf0b2d5091a2baaac5ee06b96200c5e7fa4cbbe99ae43d7d3e46fe1

Download Submit
memory/3976-142-0x0000000000400000-0x0000000000EA3000-memory.dmp

Filesize
10.6MB

Download
memory/4244-167-0x0000000000400000-0x0000000000C25000-memory.dmp

Filesize
8.1MB

Download
memory/4452-134-0x0000000003140000-0x00000000039B7000-memory.dmp

Filesize
8.5MB

Download
memory/4452-136-0x0000000000400000-0x0000000000EA3000-memory.dmp

Filesize
10.6MB

Download
memory/4824-153-0x0000000000400000-0x0000000000EA3000-memory.dmp

Filesize
10.6MB

Download
memory/4824-158-0x0000000000400000-0x0000000000EA3000-memory.dmp

Filesize
10.6MB

Download
memory/4824-151-0x0000000000400000-0x0000000000EA3000-memory.dmp

Filesize
10.6MB

Download
memory/4824-154-0x0000000000400000-0x0000000000EA3000-memory.dmp

Filesize
10.6MB

Download
memory/4824-155-0x0000000000400000-0x0000000000EA3000-memory.dmp

Filesize
10.6MB

Download
memory/4824-156-0x0000000000400000-0x0000000000EA3000-memory.dmp

Filesize
10.6MB

Download
memory/4824-157-0x0000000000400000-0x0000000000EA3000-memory.dmp

Filesize
10.6MB

Download
memory/4824-152-0x0000000000400000-0x0000000000EA3000-memory.dmp

Filesize
10.6MB

Download
memory/4824-159-0x0000000000400000-0x0000000000EA3000-memory.dmp

Filesize
10.6MB

Download
memory/4824-160-0x0000000000400000-0x0000000000EA3000-memory.dmp

Filesize
10.6MB

Download
memory/4824-150-0x0000000000400000-0x0000000000EA3000-memory.dmp

Filesize
10.6MB

Download
memory/4824-149-0x0000000000400000-0x0000000000EA3000-memory.dmp

Filesize
10.6MB

Download
memory/4824-166-0x0000000000400000-0x0000000000EA3000-memory.dmp

Filesize
10.6MB

Download
memory/4824-148-0x0000000000400000-0x0000000000EA3000-memory.dmp

Filesize
10.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads