glupteba | 050c7bdef499a3aeecaa3bca43950f540c835b41a4b0d321f916e415ce564bca

Analysis

max time kernel
8s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
07/06/2024, 01:01

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
050c7bdef499a3aeecaa3bca43950f540c835b41a4b0d321f916e415ce564bca.exe
Size 4.1MB
Sample240607-bda7esfh22
SHA256 050c7bdef499a3aeecaa3bca43950f540c835b41a4b0d321f916e415ce564bca
MD5 58aeec23aa477acc489ca29fc8222e5e
SHA1 fd189a7331274779548164e9a5c19f7c82bb287d
SHA512 4f6ce8c769d27fa6b1b2c640ba22c995eabcec9c530221678d60a356c80c43a9a8eb47bafb16d3dc18f9f4d352fc5cf334d6d0076ac87251ee121a446ffe2176
SSDEEP 98304:mJsMjtvpLhBsrANyl+HA3P3+ZY1+eQIMXjectPnUWuRnMm8CYQO5:mWgDBsKdHAWZM+VzNxnUpRnkRj
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba dropper evasion execution loader

Malware Config

Signatures

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

Glupteba payload 8 IoCs

resource	yara_rule
behavioral2/memory/1616-2-0x0000000004990000-0x000000000527B000-memory.dmp	family_glupteba
behavioral2/memory/1616-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/1616-26-0x0000000000400000-0x0000000002958000-memory.dmp	family_glupteba
behavioral2/memory/1616-53-0x0000000004990000-0x000000000527B000-memory.dmp	family_glupteba
behavioral2/memory/1616-104-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3192-103-0x0000000000400000-0x0000000002958000-memory.dmp	family_glupteba
behavioral2/memory/1616-102-0x0000000000400000-0x0000000002958000-memory.dmp	family_glupteba
behavioral2/memory/3192-131-0x0000000000400000-0x0000000002958000-memory.dmp	family_glupteba

Detects Windows executables referencing non-Windows User-Agents 6 IoCs

resource	yara_rule
behavioral2/memory/1616-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/1616-26-0x0000000000400000-0x0000000002958000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/1616-104-0x0000000000400000-0x0000000000D1C000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/3192-103-0x0000000000400000-0x0000000002958000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/1616-102-0x0000000000400000-0x0000000002958000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/3192-131-0x0000000000400000-0x0000000002958000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

Detects executables Discord URL observed in first stage droppers 6 IoCs

resource	yara_rule
behavioral2/memory/1616-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DiscordURL
behavioral2/memory/1616-26-0x0000000000400000-0x0000000002958000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DiscordURL
behavioral2/memory/1616-104-0x0000000000400000-0x0000000000D1C000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DiscordURL
behavioral2/memory/3192-103-0x0000000000400000-0x0000000002958000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DiscordURL
behavioral2/memory/1616-102-0x0000000000400000-0x0000000002958000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DiscordURL
behavioral2/memory/3192-131-0x0000000000400000-0x0000000002958000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DiscordURL

Detects executables containing URLs to raw contents of a Github gist 6 IoCs

resource	yara_rule
behavioral2/memory/1616-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_RawGitHub_URL
behavioral2/memory/1616-26-0x0000000000400000-0x0000000002958000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_RawGitHub_URL
behavioral2/memory/1616-104-0x0000000000400000-0x0000000000D1C000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_RawGitHub_URL
behavioral2/memory/3192-103-0x0000000000400000-0x0000000002958000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_RawGitHub_URL
behavioral2/memory/1616-102-0x0000000000400000-0x0000000002958000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_RawGitHub_URL
behavioral2/memory/3192-131-0x0000000000400000-0x0000000002958000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_RawGitHub_URL

Detects executables containing artifacts associated with disabling Widnows Defender 6 IoCs

resource	yara_rule
behavioral2/memory/1616-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	INDICATOR_SUSPICIOUS_DisableWinDefender
behavioral2/memory/1616-26-0x0000000000400000-0x0000000002958000-memory.dmp	INDICATOR_SUSPICIOUS_DisableWinDefender
behavioral2/memory/1616-104-0x0000000000400000-0x0000000000D1C000-memory.dmp	INDICATOR_SUSPICIOUS_DisableWinDefender
behavioral2/memory/3192-103-0x0000000000400000-0x0000000002958000-memory.dmp	INDICATOR_SUSPICIOUS_DisableWinDefender
behavioral2/memory/1616-102-0x0000000000400000-0x0000000002958000-memory.dmp	INDICATOR_SUSPICIOUS_DisableWinDefender
behavioral2/memory/3192-131-0x0000000000400000-0x0000000002958000-memory.dmp	INDICATOR_SUSPICIOUS_DisableWinDefender

Detects executables referencing many varying, potentially fake Windows User-Agents 6 IoCs

resource	yara_rule
behavioral2/memory/1616-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_TooManyWindowsUA
behavioral2/memory/1616-26-0x0000000000400000-0x0000000002958000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_TooManyWindowsUA
behavioral2/memory/1616-104-0x0000000000400000-0x0000000000D1C000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_TooManyWindowsUA
behavioral2/memory/3192-103-0x0000000000400000-0x0000000002958000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_TooManyWindowsUA
behavioral2/memory/1616-102-0x0000000000400000-0x0000000002958000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_TooManyWindowsUA
behavioral2/memory/3192-131-0x0000000000400000-0x0000000002958000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_TooManyWindowsUA

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2060	netsh.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
3440	powershell.exe
4736	powershell.exe
3980	powershell.exe
2072	powershell.exe
544	powershell.exe
5116	powershell.exe
3832	powershell.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/Job

T1053

pid	Process
4460	schtasks.exe
3644	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\050c7bdef499a3aeecaa3bca43950f540c835b41a4b0d321f916e415ce564bca.exe
"C:\Users\Admin\AppData\Local\Temp\050c7bdef499a3aeecaa3bca43950f540c835b41a4b0d321f916e415ce564bca.exe"
1⤵
PID:1616
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Command and Scripting Interpreter: PowerShell
  PID:3440
- C:\Users\Admin\AppData\Local\Temp\050c7bdef499a3aeecaa3bca43950f540c835b41a4b0d321f916e415ce564bca.exe
  "C:\Users\Admin\AppData\Local\Temp\050c7bdef499a3aeecaa3bca43950f540c835b41a4b0d321f916e415ce564bca.exe"
  2⤵
  PID:3192
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Command and Scripting Interpreter: PowerShell
    PID:4736
- - 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⤵
    PID:3548
  - - 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:2060
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Command and Scripting Interpreter: PowerShell
    PID:3980
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Command and Scripting Interpreter: PowerShell
    PID:2072
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    PID:4324
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Command and Scripting Interpreter: PowerShell
      PID:544
  - - 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:4460
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:3724
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Command and Scripting Interpreter: PowerShell
      PID:5116
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Command and Scripting Interpreter: PowerShell
      PID:3832
  - - 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⤵
      PID:3212
  - - 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:3644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

__PSScriptPolicyTest_ulu43azj.ekm.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ulu43azj.ekm.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

Submit Download

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
MD5 SHA1 SHA512 SSDEEP

Submit Download

powershell.exe.log

Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Size 2KB
SHA256 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
MD5 968cb9309758126772781b83adb8a28f
SHA1 8da30e71accf186b2ba11da1797cf67f8f78b47c
SHA512 4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
MD5 SHA1 SHA512

Submit Download