Analysis

  • max time kernel
    143s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-09-2023 11:39

General

  • Target

    10979714162c9b426a7e9b2e14a582b03b4153bdf3cbce775b69b505a2463cd0_JC.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 1 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.

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Windows security modification 2 TTPs 3 IoCs
  • Accesses Microsoft Outlook profiles 1 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).

  • 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 27 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs
  • System policy modification 1 TTPs 1 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\10979714162c9b426a7e9b2e14a582b03b4153bdf3cbce775b69b505a2463cd0_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\10979714162c9b426a7e9b2e14a582b03b4153bdf3cbce775b69b505a2463cd0_JC.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks computer location settings
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4868
    • 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:1480
      • 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:4748
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp6A62.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1196
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:2352
      • 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
        • Checks computer location settings
        • Executes dropped EXE
        • Windows security modification
        • Checks whether UAC is enabled
        • Maps connected drives based on registry
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        • System policy modification
        PID:4696
        • 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:1180
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\ilasm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\ilasm.exe"
          4⤵
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • outlook_office_path
          • outlook_win_path
          PID:4652

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sder3eyg.mcb.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp6A62.tmp.bat

    Filesize

    151B

    MD5

    603ff5a234320112bc23936ae7676e4a

    SHA1

    e555214dbf756743af1ecd9af5835135cf65a101

    SHA256

    5bf9a1ff155f6ac27b044486bb46c09bcda3cc957610ea99a4e998fe2a319e47

    SHA512

    e1db52afec919a7cdf4bc309691cc16db06733f4c731e2c916cebc10fd6d33619a4674bfd38965d509e23b64a99b48d4f0aa590af2a38a11b9d18eddd9df6b99

  • 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

  • memory/1180-30-0x00000000057E0000-0x0000000005802000-memory.dmp

    Filesize

    136KB

  • memory/1180-68-0x0000000074B50000-0x0000000075300000-memory.dmp

    Filesize

    7.7MB

  • memory/1180-71-0x0000000074B50000-0x0000000075300000-memory.dmp

    Filesize

    7.7MB

  • memory/1180-41-0x00000000062D0000-0x0000000006624000-memory.dmp

    Filesize

    3.3MB

  • memory/1180-67-0x0000000007E00000-0x0000000007E08000-memory.dmp

    Filesize

    32KB

  • memory/1180-66-0x0000000007E20000-0x0000000007E3A000-memory.dmp

    Filesize

    104KB

  • memory/1180-65-0x0000000007D20000-0x0000000007D34000-memory.dmp

    Filesize

    80KB

  • memory/1180-64-0x0000000007D10000-0x0000000007D1E000-memory.dmp

    Filesize

    56KB

  • memory/1180-63-0x0000000007CE0000-0x0000000007CF1000-memory.dmp

    Filesize

    68KB

  • memory/1180-62-0x0000000007D60000-0x0000000007DF6000-memory.dmp

    Filesize

    600KB

  • memory/1180-61-0x0000000007B50000-0x0000000007B5A000-memory.dmp

    Filesize

    40KB

  • memory/1180-60-0x0000000007AE0000-0x0000000007AFA000-memory.dmp

    Filesize

    104KB

  • memory/1180-23-0x0000000002ED0000-0x0000000002F06000-memory.dmp

    Filesize

    216KB

  • memory/1180-59-0x0000000008120000-0x000000000879A000-memory.dmp

    Filesize

    6.5MB

  • memory/1180-58-0x00000000077E0000-0x0000000007883000-memory.dmp

    Filesize

    652KB

  • memory/1180-22-0x0000000074B50000-0x0000000075300000-memory.dmp

    Filesize

    7.7MB

  • memory/1180-27-0x0000000002E80000-0x0000000002E90000-memory.dmp

    Filesize

    64KB

  • memory/1180-26-0x0000000002E80000-0x0000000002E90000-memory.dmp

    Filesize

    64KB

  • memory/1180-57-0x0000000006D70000-0x0000000006D8E000-memory.dmp

    Filesize

    120KB

  • memory/1180-29-0x00000000058E0000-0x0000000005F08000-memory.dmp

    Filesize

    6.2MB

  • memory/1180-47-0x0000000070580000-0x00000000705CC000-memory.dmp

    Filesize

    304KB

  • memory/1180-31-0x0000000006080000-0x00000000060E6000-memory.dmp

    Filesize

    408KB

  • memory/1180-46-0x0000000006D90000-0x0000000006DC2000-memory.dmp

    Filesize

    200KB

  • memory/1180-42-0x00000000067D0000-0x00000000067EE000-memory.dmp

    Filesize

    120KB

  • memory/1180-45-0x000000007FD40000-0x000000007FD50000-memory.dmp

    Filesize

    64KB

  • memory/1180-43-0x0000000006880000-0x00000000068CC000-memory.dmp

    Filesize

    304KB

  • memory/1180-44-0x0000000002E80000-0x0000000002E90000-memory.dmp

    Filesize

    64KB

  • memory/4652-28-0x0000000005D80000-0x0000000005D90000-memory.dmp

    Filesize

    64KB

  • memory/4652-73-0x0000000005D80000-0x0000000005D90000-memory.dmp

    Filesize

    64KB

  • memory/4652-74-0x0000000007430000-0x0000000007480000-memory.dmp

    Filesize

    320KB

  • memory/4652-72-0x0000000074B50000-0x0000000075300000-memory.dmp

    Filesize

    7.7MB

  • memory/4652-75-0x0000000007650000-0x0000000007812000-memory.dmp

    Filesize

    1.8MB

  • memory/4652-24-0x0000000074B50000-0x0000000075300000-memory.dmp

    Filesize

    7.7MB

  • memory/4652-20-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4696-19-0x0000000074B50000-0x0000000075300000-memory.dmp

    Filesize

    7.7MB

  • memory/4696-25-0x0000000074B50000-0x0000000075300000-memory.dmp

    Filesize

    7.7MB

  • memory/4868-9-0x00000000054A0000-0x0000000005506000-memory.dmp

    Filesize

    408KB

  • memory/4868-3-0x0000000005590000-0x0000000005B34000-memory.dmp

    Filesize

    5.6MB

  • memory/4868-0-0x0000000074B50000-0x0000000075300000-memory.dmp

    Filesize

    7.7MB

  • memory/4868-5-0x0000000005070000-0x0000000005080000-memory.dmp

    Filesize

    64KB

  • memory/4868-8-0x0000000005050000-0x000000000506A000-memory.dmp

    Filesize

    104KB

  • memory/4868-15-0x0000000074B50000-0x0000000075300000-memory.dmp

    Filesize

    7.7MB

  • memory/4868-6-0x0000000005000000-0x000000000500A000-memory.dmp

    Filesize

    40KB

  • memory/4868-7-0x00000000052A0000-0x000000000532C000-memory.dmp

    Filesize

    560KB

  • memory/4868-4-0x0000000005080000-0x0000000005112000-memory.dmp

    Filesize

    584KB

  • memory/4868-1-0x00000000004C0000-0x000000000055A000-memory.dmp

    Filesize

    616KB

  • memory/4868-2-0x0000000004F40000-0x0000000004FDC000-memory.dmp

    Filesize

    624KB