glupteba | 77c05d0031ff5600c119e6adcaa30461476e1c94c752854a509673ed1a19b894

Analysis

max time kernel
12s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
17/05/2024, 04:45

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General

Target
77c05d0031ff5600c119e6adcaa30461476e1c94c752854a509673ed1a19b894.exe
Size 4.1MB
Sample240517-fdwwcaaa99
SHA256 77c05d0031ff5600c119e6adcaa30461476e1c94c752854a509673ed1a19b894
MD5 0c62082a74fb71a247e204e91172252f
SHA1 2bfd880c7b0d7bc26e4f1c20ba33d73a2f189325
SHA512 718d9e164ea397a293f62a17e23734fbf85ef83dccf213743bb806e52d066c0093f04f2ee5933f802d77e834e0931f269010b93c93603201353d8f1b2a946be6
SSDEEP 98304:eNO3yy04ogde7ep0A2AdPyQGNgd0+V4CCH3iZ/qkVniougG1a:IOA8mA0A2AFyQ3d0+aD4qkVni5a
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 17 IoCs

resource	yara_rule
behavioral1/memory/3080-2-0x0000000004C30000-0x000000000551B000-memory.dmp	family_glupteba
behavioral1/memory/3080-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral1/memory/3080-55-0x0000000000400000-0x0000000002B0C000-memory.dmp	family_glupteba
behavioral1/memory/3080-57-0x0000000004C30000-0x000000000551B000-memory.dmp	family_glupteba
behavioral1/memory/768-80-0x0000000000400000-0x0000000002B0C000-memory.dmp	family_glupteba
behavioral1/memory/3080-109-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral1/memory/768-138-0x0000000000400000-0x0000000002B0C000-memory.dmp	family_glupteba
behavioral1/memory/2416-152-0x0000000000400000-0x0000000002B0C000-memory.dmp	family_glupteba
behavioral1/memory/2416-221-0x0000000000400000-0x0000000002B0C000-memory.dmp	family_glupteba
behavioral1/memory/2416-233-0x0000000000400000-0x0000000002B0C000-memory.dmp	family_glupteba
behavioral1/memory/2416-237-0x0000000000400000-0x0000000002B0C000-memory.dmp	family_glupteba
behavioral1/memory/2416-241-0x0000000000400000-0x0000000002B0C000-memory.dmp	family_glupteba
behavioral1/memory/2416-245-0x0000000000400000-0x0000000002B0C000-memory.dmp	family_glupteba
behavioral1/memory/2416-249-0x0000000000400000-0x0000000002B0C000-memory.dmp	family_glupteba
behavioral1/memory/2416-253-0x0000000000400000-0x0000000002B0C000-memory.dmp	family_glupteba
behavioral1/memory/2416-257-0x0000000000400000-0x0000000002B0C000-memory.dmp	family_glupteba
behavioral1/memory/2416-261-0x0000000000400000-0x0000000002B0C000-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
788	netsh.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/4476-226-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/files/0x00080000000234a2-227.dat	upx
behavioral1/memory/4244-229-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/4476-230-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/4244-235-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/4244-243-0x0000000000400000-0x00000000008DF000-memory.dmp	upx

Launches sc.exe 1 IoCs

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

pid	Process
4848	sc.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2256	powershell.exe
4652	powershell.exe
4660	powershell.exe
2692	powershell.exe
532	powershell.exe
2032	powershell.exe
2248	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
2468	schtasks.exe
900	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\77c05d0031ff5600c119e6adcaa30461476e1c94c752854a509673ed1a19b894.exe
"C:\Users\Admin\AppData\Local\Temp\77c05d0031ff5600c119e6adcaa30461476e1c94c752854a509673ed1a19b894.exe"
1⤵
PID:3080
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Command and Scripting Interpreter: PowerShell
  PID:4652
- C:\Users\Admin\AppData\Local\Temp\77c05d0031ff5600c119e6adcaa30461476e1c94c752854a509673ed1a19b894.exe
  "C:\Users\Admin\AppData\Local\Temp\77c05d0031ff5600c119e6adcaa30461476e1c94c752854a509673ed1a19b894.exe"
  2⤵
  PID:768
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Command and Scripting Interpreter: PowerShell
    PID:4660
- - 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:1068
  - - 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:788
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Command and Scripting Interpreter: PowerShell
    PID:2692
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Command and Scripting Interpreter: PowerShell
    PID:532
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    PID:2416
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Command and Scripting Interpreter: PowerShell
      PID:2032
  - - 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:2468
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:4620
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Command and Scripting Interpreter: PowerShell
      PID:2248
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Command and Scripting Interpreter: PowerShell
      PID:2256
  - - 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:1216
  - - 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:900
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      PID:4476
    - - 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:3960
      - 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:4848

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
PID:4244

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

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Downloads

__PSScriptPolicyTest_fwwtpjkd.wyn.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fwwtpjkd.wyn.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 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
MD5 968cb9309758126772781b83adb8a28f
SHA1 8da30e71accf186b2ba11da1797cf67f8f78b47c
SHA512 4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
MD5 SHA1 SHA512

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