Analysis

  • max time kernel
    122s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    11-10-2023 06:41

General

  • Target

    Hesap_Hareketleri__20230929_194202031.exe

  • Size

    595KB

  • MD5

    816c7761599a4e2b666d2e47e380c615

  • SHA1

    6e1de32829fce91c28e24f42972575ba4803318c

  • SHA256

    10979714162c9b426a7e9b2e14a582b03b4153bdf3cbce775b69b505a2463cd0

  • SHA512

    e242b3b046c32feeedfcf493683daef8c6647447e7cb35b1f96f87f87f96ff752890764bb1cfeed13c72906da075ca0dc009600191510927df648faec4d063f5

  • SSDEEP

    12288:bJFl3t6SU4VbiQQoiu6dqHnqczOYhT9/yLhUQ8vFheac4FdKwJ4mAp:Dl9aMb6okqHuQaL89VcSgwKp

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    mail.gkas.com.tr
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Gkasteknik@2022

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 4 IoCs
  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 2 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 2 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Windows security modification 2 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Maps connected drives based on registry 3 TTPs 4 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Hesap_Hareketleri__20230929_194202031.exe
    "C:\Users\Admin\AppData\Local\Temp\Hesap_Hareketleri__20230929_194202031.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3056
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2832
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
        3⤵
        • Creates scheduled task(s)
        PID:2152
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp475C.tmp.bat""
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2632
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:2644
      • C:\Users\Admin\AppData\Roaming\svchost.exe
        "C:\Users\Admin\AppData\Roaming\svchost.exe"
        3⤵
        • UAC bypass
        • Windows security bypass
        • Looks for VirtualBox Guest Additions in registry
        • Looks for VMWare Tools registry key
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Windows security modification
        • Checks whether UAC is enabled
        • Maps connected drives based on registry
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        • System policy modification
        PID:2848
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\svchost.exe" -Force
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2512
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\WsatConfig.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\WsatConfig.exe"
          4⤵
            PID:2500
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:2508
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 2508 -s 1084
              5⤵
              • Program crash
              PID:1968

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp475C.tmp.bat

      Filesize

      151B

      MD5

      0b790f529a04633061a51c640ab66055

      SHA1

      e01a8e9fcbff8897b02ef41664f8c58c85919682

      SHA256

      42eece1503a0a6c5a46168a7d403dca33cdf54f86ad2bbfbe92d6e4c02b9cc11

      SHA512

      debeb0f097e552cc12650061d5fd3c67911ffde02cd2dd0a3c27c86531a2e3ba444c4838a41ec0fcabe15079313307edd2cc1370e6533274f3d40d705474baa6

    • C:\Users\Admin\AppData\Local\Temp\tmp475C.tmp.bat

      Filesize

      151B

      MD5

      0b790f529a04633061a51c640ab66055

      SHA1

      e01a8e9fcbff8897b02ef41664f8c58c85919682

      SHA256

      42eece1503a0a6c5a46168a7d403dca33cdf54f86ad2bbfbe92d6e4c02b9cc11

      SHA512

      debeb0f097e552cc12650061d5fd3c67911ffde02cd2dd0a3c27c86531a2e3ba444c4838a41ec0fcabe15079313307edd2cc1370e6533274f3d40d705474baa6

    • C:\Users\Admin\AppData\Roaming\svchost.exe

      Filesize

      595KB

      MD5

      816c7761599a4e2b666d2e47e380c615

      SHA1

      6e1de32829fce91c28e24f42972575ba4803318c

      SHA256

      10979714162c9b426a7e9b2e14a582b03b4153bdf3cbce775b69b505a2463cd0

      SHA512

      e242b3b046c32feeedfcf493683daef8c6647447e7cb35b1f96f87f87f96ff752890764bb1cfeed13c72906da075ca0dc009600191510927df648faec4d063f5

    • C:\Users\Admin\AppData\Roaming\svchost.exe

      Filesize

      595KB

      MD5

      816c7761599a4e2b666d2e47e380c615

      SHA1

      6e1de32829fce91c28e24f42972575ba4803318c

      SHA256

      10979714162c9b426a7e9b2e14a582b03b4153bdf3cbce775b69b505a2463cd0

      SHA512

      e242b3b046c32feeedfcf493683daef8c6647447e7cb35b1f96f87f87f96ff752890764bb1cfeed13c72906da075ca0dc009600191510927df648faec4d063f5

    • \Users\Admin\AppData\Roaming\svchost.exe

      Filesize

      595KB

      MD5

      816c7761599a4e2b666d2e47e380c615

      SHA1

      6e1de32829fce91c28e24f42972575ba4803318c

      SHA256

      10979714162c9b426a7e9b2e14a582b03b4153bdf3cbce775b69b505a2463cd0

      SHA512

      e242b3b046c32feeedfcf493683daef8c6647447e7cb35b1f96f87f87f96ff752890764bb1cfeed13c72906da075ca0dc009600191510927df648faec4d063f5

    • memory/2508-38-0x0000000004960000-0x00000000049A0000-memory.dmp

      Filesize

      256KB

    • memory/2508-37-0x00000000738A0000-0x0000000073F8E000-memory.dmp

      Filesize

      6.9MB

    • memory/2508-34-0x0000000004960000-0x00000000049A0000-memory.dmp

      Filesize

      256KB

    • memory/2508-33-0x00000000738A0000-0x0000000073F8E000-memory.dmp

      Filesize

      6.9MB

    • memory/2508-28-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/2508-32-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/2508-26-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/2512-35-0x000000006F5B0000-0x000000006FB5B000-memory.dmp

      Filesize

      5.7MB

    • memory/2512-36-0x000000006F5B0000-0x000000006FB5B000-memory.dmp

      Filesize

      5.7MB

    • memory/2512-43-0x000000006F5B0000-0x000000006FB5B000-memory.dmp

      Filesize

      5.7MB

    • memory/2512-41-0x00000000001C0000-0x0000000000200000-memory.dmp

      Filesize

      256KB

    • memory/2512-40-0x000000006F5B0000-0x000000006FB5B000-memory.dmp

      Filesize

      5.7MB

    • memory/2512-39-0x000000006F5B0000-0x000000006FB5B000-memory.dmp

      Filesize

      5.7MB

    • memory/2848-19-0x0000000000AC0000-0x0000000000B5A000-memory.dmp

      Filesize

      616KB

    • memory/2848-20-0x00000000741F0000-0x00000000748DE000-memory.dmp

      Filesize

      6.9MB

    • memory/2848-29-0x00000000741F0000-0x00000000748DE000-memory.dmp

      Filesize

      6.9MB

    • memory/2848-22-0x00000000006A0000-0x00000000006BA000-memory.dmp

      Filesize

      104KB

    • memory/2848-30-0x0000000002130000-0x0000000002170000-memory.dmp

      Filesize

      256KB

    • memory/2848-21-0x0000000002130000-0x0000000002170000-memory.dmp

      Filesize

      256KB

    • memory/2848-25-0x00000000741F0000-0x00000000748DE000-memory.dmp

      Filesize

      6.9MB

    • memory/3056-4-0x0000000001FE0000-0x000000000206C000-memory.dmp

      Filesize

      560KB

    • memory/3056-2-0x00000000748E0000-0x0000000074FCE000-memory.dmp

      Filesize

      6.9MB

    • memory/3056-1-0x0000000000950000-0x00000000009EA000-memory.dmp

      Filesize

      616KB

    • memory/3056-14-0x00000000748E0000-0x0000000074FCE000-memory.dmp

      Filesize

      6.9MB

    • memory/3056-0-0x00000000748E0000-0x0000000074FCE000-memory.dmp

      Filesize

      6.9MB

    • memory/3056-3-0x0000000004DB0000-0x0000000004DF0000-memory.dmp

      Filesize

      256KB

    • memory/3056-5-0x0000000000890000-0x00000000008AA000-memory.dmp

      Filesize

      104KB