glupteba | 8f8f7420e5c7516c2b2497d773d1acc0d18eb923a071bfe4605e2a763f9e84fa

Analysis

max time kernel
5s
max time network
150s
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
8f8f7420e5c7516c2b2497d773d1acc0d18eb923a071bfe4605e2a763f9e84fa.exe
Size 4.1MB
Sample240517-lvtefach29
SHA256 8f8f7420e5c7516c2b2497d773d1acc0d18eb923a071bfe4605e2a763f9e84fa
MD5 94dc807aa337e1df59731b9ed6f189e8
SHA1 e2c3f8380850ef1eea681742b8fe303c00f474aa
SHA512 351f619f64b0659a2cd02d996cf003b6166ee77b8969aac7e4102e5f08cdcd3beee35bab4dee7f1b5bcdc946241f3ce5a1c5b13daf2ad9f253bba17c370dc1a1
SSDEEP 98304:shY2qRRjR1paGoDMO/b2fpl9vUYBzPUd5cvaqxgKnFtial:yYlRLXY4O+pXvrLaqWucQ
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 18 IoCs

resource	yara_rule
behavioral2/memory/4832-2-0x0000000004C40000-0x000000000552B000-memory.dmp	family_glupteba
behavioral2/memory/4832-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4832-52-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/4832-54-0x0000000004C40000-0x000000000552B000-memory.dmp	family_glupteba
behavioral2/memory/5088-110-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/4832-111-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/5088-171-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/3648-197-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/3648-209-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/3648-217-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/3648-221-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/3648-225-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/3648-229-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/3648-233-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/3648-237-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/3648-241-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/3648-245-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/3648-249-0x0000000000400000-0x0000000002B0D000-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
4196	netsh.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1288-210-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/files/0x000200000002aa1e-211.dat	upx
behavioral2/memory/1288-214-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/4524-213-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/4524-218-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/4524-226-0x0000000000400000-0x00000000008DF000-memory.dmp	upx

Launches sc.exe 1 IoCs

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

pid	Process
1452	sc.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
984	powershell.exe
4352	powershell.exe
3660	powershell.exe
2912	powershell.exe
4908	powershell.exe
2064	powershell.exe
3808	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
1152	schtasks.exe
2396	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\8f8f7420e5c7516c2b2497d773d1acc0d18eb923a071bfe4605e2a763f9e84fa.exe
"C:\Users\Admin\AppData\Local\Temp\8f8f7420e5c7516c2b2497d773d1acc0d18eb923a071bfe4605e2a763f9e84fa.exe"
1⤵
PID:4832
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Command and Scripting Interpreter: PowerShell
  PID:4908
- C:\Users\Admin\AppData\Local\Temp\8f8f7420e5c7516c2b2497d773d1acc0d18eb923a071bfe4605e2a763f9e84fa.exe
  "C:\Users\Admin\AppData\Local\Temp\8f8f7420e5c7516c2b2497d773d1acc0d18eb923a071bfe4605e2a763f9e84fa.exe"
  2⤵
  PID:5088
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Command and Scripting Interpreter: PowerShell
    PID:2064
- - 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:4596
  - - 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:4196
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Command and Scripting Interpreter: PowerShell
    PID:3808
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Command and Scripting Interpreter: PowerShell
    PID:984
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    PID:3648
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Command and Scripting Interpreter: PowerShell
      PID:4352
  - - 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:1152
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:4612
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Command and Scripting Interpreter: PowerShell
      PID:3660
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Command and Scripting Interpreter: PowerShell
      PID:2912
  - - 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:664
  - - 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:2396
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      PID:1288
    - - 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:3224
      - 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:1452

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
PID:4524

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_0py4ym2n.zrj.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0py4ym2n.zrj.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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