glupteba | 737ebbb261e2ef22e4b23cfc572bbe444693b4467e773fc6f7777dd6f9a68fa0

Analysis

max time kernel
6s
max time network
137s
platform
windows11-21h2_x64
resource
win11-20240426-en
resource tags

arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
submitted
17/05/2024, 09:51

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General

Target
737ebbb261e2ef22e4b23cfc572bbe444693b4467e773fc6f7777dd6f9a68fa0.exe
Size 4.1MB
Sample240517-lvf44scg98
SHA256 737ebbb261e2ef22e4b23cfc572bbe444693b4467e773fc6f7777dd6f9a68fa0
MD5 c36c383b7c637e9b5a636103876cff5e
SHA1 3a5e514a6bb20d5627455b49114e44e4e5598e46
SHA512 9389b741d6f6b964a7849d5c5393df993b7917a2cc8b19b45eb8c41eb4a2b286e89083711e6661f7dcb086a0ee733bf8fd8edee45615add00e80e05449a30dc0
SSDEEP 98304:shY2qRRjR1paGoDMO/b2fpl9vUYBzPUd5cvaqxgKnFtiaG:yYlRLXY4O+pXvrLaqWucT
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 19 IoCs

resource	yara_rule
behavioral2/memory/1576-2-0x0000000004DA0000-0x000000000568B000-memory.dmp	family_glupteba
behavioral2/memory/1576-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/1576-52-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/1576-54-0x0000000004DA0000-0x000000000568B000-memory.dmp	family_glupteba
behavioral2/memory/1576-122-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/1180-121-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/1180-195-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/4740-202-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/4740-214-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/4740-217-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/4740-221-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/4740-225-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/4740-229-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/4740-234-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/4740-237-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/4740-241-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/4740-245-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/4740-249-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/4740-253-0x0000000000400000-0x0000000002B0D000-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
1428	netsh.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000200000002a9dd-206.dat	upx
behavioral2/memory/1480-208-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/4180-212-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/1480-213-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/4180-218-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/4180-226-0x0000000000400000-0x00000000008DF000-memory.dmp	upx

Launches sc.exe 1 IoCs

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

pid	Process
4632	sc.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2512	powershell.exe
1272	powershell.exe
2460	powershell.exe
3508	powershell.exe
4536	powershell.exe
1688	powershell.exe
3456	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
1188	schtasks.exe
1820	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\737ebbb261e2ef22e4b23cfc572bbe444693b4467e773fc6f7777dd6f9a68fa0.exe
"C:\Users\Admin\AppData\Local\Temp\737ebbb261e2ef22e4b23cfc572bbe444693b4467e773fc6f7777dd6f9a68fa0.exe"
1⤵
PID:1576
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Command and Scripting Interpreter: PowerShell
  PID:3508
- C:\Users\Admin\AppData\Local\Temp\737ebbb261e2ef22e4b23cfc572bbe444693b4467e773fc6f7777dd6f9a68fa0.exe
  "C:\Users\Admin\AppData\Local\Temp\737ebbb261e2ef22e4b23cfc572bbe444693b4467e773fc6f7777dd6f9a68fa0.exe"
  2⤵
  PID:1180
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Command and Scripting Interpreter: PowerShell
    PID:4536
- - 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:3624
  - - 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:1428
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Command and Scripting Interpreter: PowerShell
    PID:1688
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Command and Scripting Interpreter: PowerShell
    PID:3456
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    PID:4740
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Command and Scripting Interpreter: PowerShell
      PID:2512
  - - 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:1188
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:2568
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Command and Scripting Interpreter: PowerShell
      PID:1272
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Command and Scripting Interpreter: PowerShell
      PID:2460
  - - 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:1612
  - - 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:1820
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      PID:1480
    - - 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:1600
      - 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:4632

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
PID:4180

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_g0gpietg.b1o.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_g0gpietg.b1o.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 e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
MD5 ac4917a885cf6050b1a483e4bc4d2ea5
SHA1 b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA512 092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
MD5 SHA1 SHA512

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