glupteba | 64106602e147aa6731e0bc4786c4053bd2341165e0770a23f624388140d14f56

Analysis

max time kernel
149s
max time network
151s
platform
windows10-ltsc_2021_x64
resource
win10ltsc2021-20260513-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
submitted
22/05/2026, 22:43

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General

Target
tmp4_g3q96h.exe
Size 4.1MB
Sample260522-2npexafw9m
SHA256 64106602e147aa6731e0bc4786c4053bd2341165e0770a23f624388140d14f56
MD5 07cbd24779d2cdbab34e1bb0f9a3ec96
SHA1 fccf12064c224f362dd9f30bb13a45c7a69f0fa4
SHA512 e254f9648b68f14753a0b0229ab8674b532f3888e042446d35b5b0e2f3710edddf003c289fedd6ffb1c2c5fb2d07d604f56bf363f999b54ebece000364748a6c
SSDEEP 98304:EldZ6GWitG+B8TfRgVqO89EjoymhhAJkq4yp+Z3Wc4:EldZX5kfWAOebyohAl5U4
TLSH
T1F116332336D28276E7B6E27904483862AF7F3570333C679F2F9115AD4E1B1D149A631B
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion discovery dropper execution glupteba loader persistence privilege_escalation rootkit trojan

Malware Config

Signatures

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

Glupteba payload 22 IoCs

resource	yara_rule
behavioral1/memory/1076-2-0x0000000002E00000-0x0000000003677000-memory.dmp	family_glupteba
behavioral1/memory/1076-3-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral1/memory/1076-4-0x0000000002E00000-0x0000000003677000-memory.dmp	family_glupteba
behavioral1/memory/3076-11-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral1/memory/560-16-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral1/memory/1904-25-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral1/memory/3388-27-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral1/memory/3192-29-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral1/memory/1560-30-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral1/memory/1560-31-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral1/memory/1560-32-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral1/memory/1560-33-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral1/memory/1560-34-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral1/memory/1560-35-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral1/memory/1560-36-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral1/memory/1560-37-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral1/memory/1560-38-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral1/memory/1560-39-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral1/memory/1560-40-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral1/memory/1560-41-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral1/memory/1560-42-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral1/memory/1560-43-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba

Windows security bypass 2 TTPs 7 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	tmp4_g3q96h.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	tmp4_g3q96h.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	tmp4_g3q96h.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	tmp4_g3q96h.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\tmp4_g3q96h.exe = "0"	tmp4_g3q96h.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	tmp4_g3q96h.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	tmp4_g3q96h.exe

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
3568	netsh.exe

Executes dropped EXE 6 IoCs

pid	Process
1560	csrss.exe
560	csrss.exe
1904	csrss.exe
4208	injector.exe
3388	csrss.exe
3192	csrss.exe

Windows security modification 2 TTPs 7 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	tmp4_g3q96h.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	tmp4_g3q96h.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	tmp4_g3q96h.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	tmp4_g3q96h.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	tmp4_g3q96h.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\tmp4_g3q96h.exe = "0"	tmp4_g3q96h.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	tmp4_g3q96h.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-1-5-21-3054922120-1500138384-519748408-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	tmp4_g3q96h.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3054922120-1500138384-519748408-1000\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 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	tmp4_g3q96h.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\rss\csrss.exe	tmp4_g3q96h.exe
File opened for modification	C:\Windows\rss	tmp4_g3q96h.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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\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	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	tmp4_g3q96h.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tmp4_g3q96h.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
4924	schtasks.exe
5036	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1076	tmp4_g3q96h.exe
1076	tmp4_g3q96h.exe
3076	tmp4_g3q96h.exe
3076	tmp4_g3q96h.exe
3076	tmp4_g3q96h.exe
3076	tmp4_g3q96h.exe
3076	tmp4_g3q96h.exe
3076	tmp4_g3q96h.exe
3076	tmp4_g3q96h.exe
3076	tmp4_g3q96h.exe
3076	tmp4_g3q96h.exe
3076	tmp4_g3q96h.exe
560	csrss.exe
560	csrss.exe
3388	csrss.exe
3388	csrss.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
1560	csrss.exe
1560	csrss.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
1560	csrss.exe
1560	csrss.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe
4208	injector.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	1076	tmp4_g3q96h.exe
Token: SeImpersonatePrivilege	1076	tmp4_g3q96h.exe
Token: SeSystemEnvironmentPrivilege	1560	csrss.exe
Token: SeDebugPrivilege	560	csrss.exe
Token: SeImpersonatePrivilege	560	csrss.exe
Token: SeDebugPrivilege	3388	csrss.exe
Token: SeImpersonatePrivilege	3388	csrss.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3076 wrote to memory of 556	3076	tmp4_g3q96h.exe	87
PID 556 wrote to memory of 3568	556	cmd.exe	89
PID 3076 wrote to memory of 1560	3076	tmp4_g3q96h.exe	90
PID 1560 wrote to memory of 4208	1560	csrss.exe	104

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\tmp4_g3q96h.exe
"C:\Users\Admin\AppData\Local\Temp\tmp4_g3q96h.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1076
- C:\Users\Admin\AppData\Local\Temp\tmp4_g3q96h.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp4_g3q96h.exe"
  2⤵
  - Windows security bypass
  - Windows security modification
  - 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:3076
- - 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:556
  - - 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:3568
- - 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:1560
  - - 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:4924
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:4200
  - - 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:4208
  - - 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:5036

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:560
- C:\Windows\rss\csrss.exe
  "C:\Windows\rss\csrss.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1904

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:3388
- C:\Windows\rss\csrss.exe
  "C:\Windows\rss\csrss.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3192

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

Disable or Modify Tools

T1562.001

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

Submit Download

csrss.exe

Path C:\Windows\rss\csrss.exe
Size 4.1MB
SHA256 64106602e147aa6731e0bc4786c4053bd2341165e0770a23f624388140d14f56
MD5 07cbd24779d2cdbab34e1bb0f9a3ec96
SHA1 fccf12064c224f362dd9f30bb13a45c7a69f0fa4
SHA512 e254f9648b68f14753a0b0229ab8674b532f3888e042446d35b5b0e2f3710edddf003c289fedd6ffb1c2c5fb2d07d604f56bf363f999b54ebece000364748a6c
SSDEEP 98304:EldZ6GWitG+B8TfRgVqO89EjoymhhAJkq4yp+Z3Wc4:EldZX5kfWAOebyohAl5U4
TLSH
T1F116332336D28276E7B6E27904483862AF7F3570333C679F2F9115AD4E1B1D149A631B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/560-16-0x0000000000400000-0x0000000000C91000-memory.dmp

Download

memory/1076-2-0x0000000002E00000-0x0000000003677000-memory.dmp

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memory/1076-3-0x0000000000400000-0x0000000000C91000-memory.dmp

Download

memory/1076-4-0x0000000002E00000-0x0000000003677000-memory.dmp

Download

memory/1076-1-0x0000000002A10000-0x0000000002DFF000-memory.dmp

Download

memory/1560-36-0x0000000000400000-0x0000000000C91000-memory.dmp

Download

memory/1560-34-0x0000000000400000-0x0000000000C91000-memory.dmp

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memory/1560-43-0x0000000000400000-0x0000000000C91000-memory.dmp

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memory/1560-42-0x0000000000400000-0x0000000000C91000-memory.dmp

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memory/1560-41-0x0000000000400000-0x0000000000C91000-memory.dmp

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memory/1560-30-0x0000000000400000-0x0000000000C91000-memory.dmp

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memory/1560-31-0x0000000000400000-0x0000000000C91000-memory.dmp

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memory/1560-32-0x0000000000400000-0x0000000000C91000-memory.dmp

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memory/1560-33-0x0000000000400000-0x0000000000C91000-memory.dmp

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memory/1560-40-0x0000000000400000-0x0000000000C91000-memory.dmp

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memory/1560-35-0x0000000000400000-0x0000000000C91000-memory.dmp

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memory/1560-39-0x0000000000400000-0x0000000000C91000-memory.dmp

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memory/1560-37-0x0000000000400000-0x0000000000C91000-memory.dmp

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memory/1560-38-0x0000000000400000-0x0000000000C91000-memory.dmp

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memory/1904-25-0x0000000000400000-0x0000000000C91000-memory.dmp

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memory/3076-6-0x0000000002950000-0x0000000002D3D000-memory.dmp

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memory/3076-11-0x0000000000400000-0x0000000000C91000-memory.dmp

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memory/3192-29-0x0000000000400000-0x0000000000C91000-memory.dmp

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memory/3388-27-0x0000000000400000-0x0000000000C91000-memory.dmp

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