glupteba | f15870e40ec483d17e69b1cee019ecfc9afe6c77e88d5beac9e68c249d910cd1

Analysis

max time kernel
0s
max time network
155s
platform
windows11-21h2_x64
resource
win11-20240426-en
resource tags

arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
submitted
18/05/2024, 11:16

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General

Target
f15870e40ec483d17e69b1cee019ecfc9afe6c77e88d5beac9e68c249d910cd1.exe
Size 4.1MB
Sample240518-nc9ptagf72
SHA256 f15870e40ec483d17e69b1cee019ecfc9afe6c77e88d5beac9e68c249d910cd1
MD5 ac57bdbdd6984cc19b74ddeed8218915
SHA1 c3990f2caad24b3bf32383d3de0935d7fc91f232
SHA512 e2a6f111d324bd75b078bc706b58276487c67b818dc3898b2c662cb348055f00ac05c553bf37c5819958bc44ab27439b845e1f93d64df56854b0d2e6002e9039
SSDEEP 98304:nQRIh4uLuEEVqS5oryfPYtPRvG0pG4X3BA:PK95KswtE0pG4BA
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba dropper evasion execution loader upx

Malware Config

Signatures

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

Glupteba payload 16 IoCs

resource	yara_rule
behavioral2/memory/3572-2-0x0000000004C90000-0x000000000557B000-memory.dmp	family_glupteba
behavioral2/memory/3572-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3572-133-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba
behavioral2/memory/3572-170-0x0000000004C90000-0x000000000557B000-memory.dmp	family_glupteba
behavioral2/memory/3572-198-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4616-197-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba
behavioral2/memory/2532-200-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba
behavioral2/memory/2532-212-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba
behavioral2/memory/2532-216-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba
behavioral2/memory/2532-220-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba
behavioral2/memory/2532-224-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba
behavioral2/memory/2532-228-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba
behavioral2/memory/2532-232-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba
behavioral2/memory/2532-236-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba
behavioral2/memory/2532-244-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba
behavioral2/memory/2532-248-0x0000000000400000-0x0000000002B08000-memory.dmp	family_glupteba

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2160	netsh.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4852-206-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/4852-210-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2156-208-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/files/0x000200000002aa12-207.dat	upx
behavioral2/memory/2156-214-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2156-222-0x0000000000400000-0x00000000008DF000-memory.dmp	upx

Launches sc.exe 1 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
4576	sc.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2272	powershell.exe
2716	powershell.exe
3148	powershell.exe
3212	powershell.exe
1124	powershell.exe
3504	powershell.exe
684	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
1232	schtasks.exe
3236	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\f15870e40ec483d17e69b1cee019ecfc9afe6c77e88d5beac9e68c249d910cd1.exe
"C:\Users\Admin\AppData\Local\Temp\f15870e40ec483d17e69b1cee019ecfc9afe6c77e88d5beac9e68c249d910cd1.exe"
1⤵
PID:3572
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Command and Scripting Interpreter: PowerShell
  PID:2272
- C:\Users\Admin\AppData\Local\Temp\f15870e40ec483d17e69b1cee019ecfc9afe6c77e88d5beac9e68c249d910cd1.exe
  "C:\Users\Admin\AppData\Local\Temp\f15870e40ec483d17e69b1cee019ecfc9afe6c77e88d5beac9e68c249d910cd1.exe"
  2⤵
  PID:4616
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Command and Scripting Interpreter: PowerShell
    PID:2716
- - 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:2200
  - - 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:2160
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Command and Scripting Interpreter: PowerShell
    PID:3148
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Command and Scripting Interpreter: PowerShell
    PID:3212
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    PID:2532
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Command and Scripting Interpreter: PowerShell
      PID:1124
  - - 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:1232
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:1512
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Command and Scripting Interpreter: PowerShell
      PID:3504
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Command and Scripting Interpreter: PowerShell
      PID:684
  - - 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:1180
  - - 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:3236
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      PID:4852
    - - C:\Windows\SysWOW64\cmd.exe
        
        cmd.exe /C sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)
        5⤵
        
        PID:1184
      - C:\Windows\SysWOW64\sc.exe
        
        sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)
        6⤵
        Launches sc.exe
        
        PID:4576

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
PID:2156

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

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Downloads

__PSScriptPolicyTest_w30cirkv.1wq.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_w30cirkv.1wq.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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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

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powershell.exe.log

Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Size 2KB
SHA256 9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
MD5 d0c46cad6c0778401e21910bd6b56b70
SHA1 7be418951ea96326aca445b8dfe449b2bfa0dca6
SHA512 057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
MD5 SHA1 SHA512

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