Overview

overview

10

Static

static

3

a2cbea585e...ab.exe

windows7-x64

10

a2cbea585e...ab.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    145s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22-12-2024 20:49

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General

  • Target

    a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe

  • Size

    4.0MB

  • MD5

    f1953eaf2c48b94bb9772bfe38d552e3

  • SHA1

    631171103c9bcfb7219353d95d37e313d7365682

  • SHA256

    a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab

  • SHA512

    29d145c5bd8bb906aa754c20e46541971bb1deae7d987a47899b58b3c01db8f6e5ca4119f713ceeffa7156a5fb01255f46375e806afd41364c66b2ccb5863fd5

  • SSDEEP

    98304:8R1MyoGwSUz6jx/0veUrId0IlpmWMzAG4u5MYkVmE:8RbJuveGId3QzAG4u5ZG

Score
10/10
gluptebadiscoverydropperevasionloaderpersistenceprivilege_escalationtrojan

Malware Config

Signatures

  • Glupteba

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

    loaderdropperglupteba
  • Glupteba family
    glupteba
  • Glupteba payload 15 IoCs
  • Windows security bypass 2 TTPs 12 IoCs
    evasiontrojan
  • Modifies Windows Firewall 2 TTPs 1 IoCs
    evasion
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Windows security modification 2 TTPs 12 IoCs
    evasiontrojan
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

    Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

  • Drops file in Windows directory 3 IoCs
  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

    persistenceprivilege_escalation
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
    evasionspywaretrojan
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
    "C:\Users\Admin\AppData\Local\Temp\a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2096
    • C:\Users\Admin\AppData\Local\Temp\a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
      "C:\Users\Admin\AppData\Local\Temp\a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe"
      2⤵
      • Windows security bypass
      • Loads dropped DLL
      • Windows security modification
      • Adds Run key to start application
      • Checks for VirtualBox DLLs, possible anti-VM trick
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2760
      • 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⤵
        • Suspicious use of WriteProcessMemory
        PID:2800
        • 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
          • Event Triggered Execution: Netsh Helper DLL
          • Modifies data under HKEY_USERS
          PID:2648
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe ""
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        PID:2600
  • C:\Windows\system32\makecab.exe
    "C:\Windows\system32\makecab.exe" C:\Windows\Logs\CBS\CbsPersist_20241222204943.log C:\Windows\Logs\CBS\CbsPersist_20241222204943.cab
    1⤵
    • Drops file in Windows directory
    PID:2856

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Impair Defenses

3
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

2
T1562.001

Modify Registry

4
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Discovery

System Information Discovery

1
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

  • \Windows\rss\csrss.exe
    Filesize

    4.0MB

    MD5

    f1953eaf2c48b94bb9772bfe38d552e3

    SHA1

    631171103c9bcfb7219353d95d37e313d7365682

    SHA256

    a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab

    SHA512

    29d145c5bd8bb906aa754c20e46541971bb1deae7d987a47899b58b3c01db8f6e5ca4119f713ceeffa7156a5fb01255f46375e806afd41364c66b2ccb5863fd5

    Download Submit

  • memory/2096-1-0x0000000000DB0000-0x0000000001154000-memory.dmp

    Filesize

    3.6MB

    Download

  • memory/2096-2-0x0000000001160000-0x000000000184F000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/2096-3-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB

    Download

  • memory/2096-5-0x0000000001160000-0x000000000184F000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/2096-6-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB

    Download

  • memory/2096-0-0x0000000000DB0000-0x0000000001154000-memory.dmp

    Filesize

    3.6MB

    Download

  • memory/2600-35-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB

    Download

  • memory/2600-20-0x0000000000D90000-0x0000000001134000-memory.dmp

    Filesize

    3.6MB

    Download

  • memory/2600-21-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB

    Download

  • memory/2600-33-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB

    Download

  • memory/2600-34-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB

    Download

  • memory/2600-37-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB

    Download

  • memory/2600-39-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB

    Download

  • memory/2600-42-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB

    Download

  • memory/2600-45-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB

    Download

  • memory/2760-9-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB

    Download

  • memory/2760-8-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB

    Download

  • memory/2760-19-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB

    Download

  • memory/2760-7-0x0000000001070000-0x0000000001414000-memory.dmp

    Filesize

    3.6MB

    Download