glupteba | 2a8dfac2449c97ead5950cbfcd282156d28d7717425170290e9f9d4f9961f019

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
02/06/2026, 09:46

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General

Target
tmpms70wqu4.exe
Size 8.3MB
Sample260602-lrrfnsbv8n
SHA256 2a8dfac2449c97ead5950cbfcd282156d28d7717425170290e9f9d4f9961f019
MD5 61eacc3bdee93cdce0d4ed9de0ef63d9
SHA1 4c52b544c7360c7fe50405ffbe37a1edbf5a86f8
SHA512 69894e6fb4ba8bbf85f0fc5c241e5b22a96f59e7eb382db4d5e8582377d71804db870fd96c1350392323eff9d9b8f2752a133183e74f90dd50066a409c7e9d3a
SSDEEP 98304:8kIhs4Oy515t3t/lsWbb0bHY8b/1qhZytTD5iq:8kws4RlzPAzshwN
TLSH
T127966B81FAAB00F9EB07453484A3922FA731750A8339DBCBCB500E67ED17AD15A37795
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion discovery dropper execution glupteba loader persistence privilege_escalation rootkit

Malware Config

Signatures

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

Glupteba payload 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002445e-2.dat	family_glupteba

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
3228	netsh.exe

Executes dropped EXE 6 IoCs

pid	Process
3848	csrss.exe
3288	csrss.exe
4516	csrss.exe
3136	injector.exe
3972	csrss.exe
2592	csrss.exe

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-1-5-21-204488895-2999877624-296153668-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	tmpms70wqu4.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.exe

Manipulates WinMonFS driver. 1 IoCs

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

rootkit defense_evasion

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

description	ioc	Process
File opened (read-only)	\??\VBoxMiniRdrDN	tmpms70wqu4.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	tmpms70wqu4.exe
File created	C:\Windows\rss\csrss.exe	tmpms70wqu4.exe

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tmpms70wqu4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tmpms70wqu4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrss.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrss.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrss.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrss.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrss.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1992	schtasks.exe
2644	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
432	tmpms70wqu4.exe
432	tmpms70wqu4.exe
1764	tmpms70wqu4.exe
1764	tmpms70wqu4.exe
1764	tmpms70wqu4.exe
1764	tmpms70wqu4.exe
1764	tmpms70wqu4.exe
1764	tmpms70wqu4.exe
1764	tmpms70wqu4.exe
1764	tmpms70wqu4.exe
1764	tmpms70wqu4.exe
1764	tmpms70wqu4.exe
3288	csrss.exe
3288	csrss.exe
3136	injector.exe
3136	injector.exe
3972	csrss.exe
3972	csrss.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3848	csrss.exe
3848	csrss.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3848	csrss.exe
3848	csrss.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe
3136	injector.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	432	tmpms70wqu4.exe
Token: SeImpersonatePrivilege	432	tmpms70wqu4.exe
Token: SeDebugPrivilege	3288	csrss.exe
Token: SeImpersonatePrivilege	3288	csrss.exe
Token: SeSystemEnvironmentPrivilege	3848	csrss.exe
Token: SeDebugPrivilege	3972	csrss.exe
Token: SeImpersonatePrivilege	3972	csrss.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1764 wrote to memory of 4928	1764	tmpms70wqu4.exe	90
PID 4928 wrote to memory of 3228	4928	cmd.exe	92
PID 1764 wrote to memory of 3848	1764	tmpms70wqu4.exe	94
PID 3848 wrote to memory of 3136	3848	csrss.exe	103

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\tmpms70wqu4.exe
"C:\Users\Admin\AppData\Local\Temp\tmpms70wqu4.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:432
- C:\Users\Admin\AppData\Local\Temp\tmpms70wqu4.exe
  "C:\Users\Admin\AppData\Local\Temp\tmpms70wqu4.exe"
  2⤵
  - Adds Run key to start application
  - Checks for VirtualBox DLLs, possible anti-VM trick
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1764
- - 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:4928
  - - 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
      Event Triggered Execution: Netsh Helper DLL
      PID:3228
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe ""
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Manipulates WinMonFS driver.
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3848
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:1992
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:4192
  - - 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:3136
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:2644

C:\Windows\rss\csrss.exe
"C:\Windows\rss\csrss.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3288
- C:\Windows\rss\csrss.exe
  "C:\Windows\rss\csrss.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4516

C:\Windows\rss\csrss.exe
C:\Windows\rss\csrss.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3972
- C:\Windows\rss\csrss.exe
  "C:\Windows\rss\csrss.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2592

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

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

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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
TLSH
T17B546C5AB2A918F8ED77823CC8525516F672B8160730D6EF03A447672F276E09D3FB21
MD5 SHA1 SHA512 SSDEEP TLSH

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csrss.exe

Path C:\Windows\rss\csrss.exe
Size 8.3MB
SHA256 2a8dfac2449c97ead5950cbfcd282156d28d7717425170290e9f9d4f9961f019
MD5 61eacc3bdee93cdce0d4ed9de0ef63d9
SHA1 4c52b544c7360c7fe50405ffbe37a1edbf5a86f8
SHA512 69894e6fb4ba8bbf85f0fc5c241e5b22a96f59e7eb382db4d5e8582377d71804db870fd96c1350392323eff9d9b8f2752a133183e74f90dd50066a409c7e9d3a
SSDEEP 98304:8kIhs4Oy515t3t/lsWbb0bHY8b/1qhZytTD5iq:8kws4RlzPAzshwN
TLSH
T127966B81FAAB00F9EB07453484A3922FA731750A8339DBCBCB500E67ED17AD15A37795
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download