glupteba | b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c

Analysis

max time kernel
1s
max time network
146s
platform
windows11-21h2_x64
resource
win11-20240412-en
resource tags

arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
submitted
17/04/2024, 19:12

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General

Target
b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe
Size 4.2MB
Sample240417-xwtmdacf4y
SHA256 b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c
MD5 61d02b87cb3d952fc8d9ca51a0b8e751
SHA1 84a4a7bfb8f7e602caf373323026c3c5ffe6b8b3
SHA512 cca8bde233d7de0f6f6326f52ef5ce1e1e8c16a0d5a17ff8f22ce5e31589ce5fe0e65d953c3ed2f285c6d80623df24d5b8c84483793ead6693a50e0728e5d483
SSDEEP 98304:G+HT2dFOlkJa7jNZC2ePu9ILkthheCYlOaq:/zMKBrC2kuA8hntB
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba dropper evasion 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/4800-2-0x0000000005370000-0x0000000005C5B000-memory.dmp	family_glupteba
behavioral2/memory/4800-3-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/2332-53-0x0000000005240000-0x0000000005B2B000-memory.dmp	family_glupteba
behavioral2/memory/2332-63-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/4800-79-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/2332-148-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1756-241-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1756-251-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1756-254-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1756-257-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1756-260-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1756-263-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1756-266-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1756-269-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1756-272-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1756-275-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1756-278-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1756-281-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral2/memory/1756-284-0x0000000000400000-0x000000000310E000-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
4416	netsh.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000200000002a9e3-245.dat	upx
behavioral2/memory/3688-248-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/3724-253-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/3724-259-0x0000000000400000-0x00000000008DF000-memory.dmp	upx

Launches sc.exe 1 IoCs

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

pid	Process
3196	sc.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
4884	schtasks.exe
2888	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe
"C:\Users\Admin\AppData\Local\Temp\b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe"
1⤵
PID:4800
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  PID:1708
- C:\Users\Admin\AppData\Local\Temp\b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe
  "C:\Users\Admin\AppData\Local\Temp\b4ed8237a175ea144f64b71dc85b0b3c042d9797a1b6e6a9b445e4cad34f0a9c.exe"
  2⤵
  PID:2332
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    PID:4920
- - 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:2108
  - - 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:4416
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    PID:4960
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    PID:1696
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    PID:1756
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      PID:1412
  - - 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:4884
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:1312
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      PID:1900
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      PID:2052
  - - 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:2972
  - - 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:2888
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      PID:3688
    - - 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:3196

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
PID:3724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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_4yqxwe32.bdm.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4yqxwe32.bdm.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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