Analysis

  • max time kernel
    143s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-10-2023 16:38

General

  • Target

    hesaphareketi-01.exe

  • Size

    731KB

  • MD5

    3024f8b8500d2629b5d934d0ef334efb

  • SHA1

    d2013e0488e50fe9039986129e46725c2353e0a7

  • SHA256

    12a63c9b7bd7c707d4a0e440182abf8c5afc62c171a06f188e32c18048c7ea31

  • SHA512

    b8ca6e76ebfd879d3f5643caa614d57fb7d57e5a95d79aecea2bdbd71bbed366b72a59a12b96b6f84e988c45e15e1c3369fd01418972e0aed7dba65ee2a4a998

  • SSDEEP

    12288:JqH3dU+ta6byR6WYlvZja6+hpKo8sRexHyoRwMt7zANdi:etU+YxYtARN6wUK0

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
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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\hesaphareketi-01.exe
    "C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.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:3680
    • 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:1688
      • 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:4208
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8695.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4788
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:1128
      • 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:3316
        • 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:4764
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          4⤵
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • outlook_office_path
          • outlook_win_path
          PID:3828

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_i1afnei0.nz1.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp8695.tmp.bat

    Filesize

    151B

    MD5

    2a1bca1c4a5f3b73cbc29cc4b6d9feb7

    SHA1

    469eba29d53a2add29fdc8708b602d740cf20d96

    SHA256

    bd908b28b4d6b2ea0e4d0f5b811da6f5ccd84eabeae64793190eea733225c1c8

    SHA512

    de4d5eb1f2ecfde988db65e5202433493a26c256a960f1db8dfe4903fbb725bf4d2ac7341a63e1580d05e4b4e6bc78f3e386f67780ab8aa539b28163e86f932c

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

    Filesize

    731KB

    MD5

    3024f8b8500d2629b5d934d0ef334efb

    SHA1

    d2013e0488e50fe9039986129e46725c2353e0a7

    SHA256

    12a63c9b7bd7c707d4a0e440182abf8c5afc62c171a06f188e32c18048c7ea31

    SHA512

    b8ca6e76ebfd879d3f5643caa614d57fb7d57e5a95d79aecea2bdbd71bbed366b72a59a12b96b6f84e988c45e15e1c3369fd01418972e0aed7dba65ee2a4a998

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

    Filesize

    731KB

    MD5

    3024f8b8500d2629b5d934d0ef334efb

    SHA1

    d2013e0488e50fe9039986129e46725c2353e0a7

    SHA256

    12a63c9b7bd7c707d4a0e440182abf8c5afc62c171a06f188e32c18048c7ea31

    SHA512

    b8ca6e76ebfd879d3f5643caa614d57fb7d57e5a95d79aecea2bdbd71bbed366b72a59a12b96b6f84e988c45e15e1c3369fd01418972e0aed7dba65ee2a4a998

  • memory/3316-24-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/3316-17-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/3680-4-0x0000000004FF0000-0x0000000005042000-memory.dmp

    Filesize

    328KB

  • memory/3680-2-0x0000000004F50000-0x0000000004FEC000-memory.dmp

    Filesize

    624KB

  • memory/3680-6-0x0000000005660000-0x0000000005C04000-memory.dmp

    Filesize

    5.6MB

  • memory/3680-13-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/3680-1-0x0000000000530000-0x00000000005EC000-memory.dmp

    Filesize

    752KB

  • memory/3680-5-0x0000000005060000-0x000000000507A000-memory.dmp

    Filesize

    104KB

  • memory/3680-3-0x00000000050A0000-0x00000000050B0000-memory.dmp

    Filesize

    64KB

  • memory/3680-0-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/3680-7-0x0000000005160000-0x00000000051C6000-memory.dmp

    Filesize

    408KB

  • memory/3828-72-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/3828-71-0x0000000005F70000-0x0000000005F7A000-memory.dmp

    Filesize

    40KB

  • memory/3828-23-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/3828-70-0x0000000005FE0000-0x0000000006072000-memory.dmp

    Filesize

    584KB

  • memory/3828-73-0x00000000051A0000-0x00000000051B0000-memory.dmp

    Filesize

    64KB

  • memory/3828-69-0x0000000006110000-0x00000000062D2000-memory.dmp

    Filesize

    1.8MB

  • memory/3828-68-0x0000000005DF0000-0x0000000005E40000-memory.dmp

    Filesize

    320KB

  • memory/3828-18-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4764-38-0x0000000005DD0000-0x0000000006124000-memory.dmp

    Filesize

    3.3MB

  • memory/4764-59-0x0000000007770000-0x0000000007806000-memory.dmp

    Filesize

    600KB

  • memory/4764-39-0x00000000061C0000-0x00000000061DE000-memory.dmp

    Filesize

    120KB

  • memory/4764-40-0x0000000006200000-0x000000000624C000-memory.dmp

    Filesize

    304KB

  • memory/4764-41-0x0000000005080000-0x0000000005090000-memory.dmp

    Filesize

    64KB

  • memory/4764-42-0x000000007FBB0000-0x000000007FBC0000-memory.dmp

    Filesize

    64KB

  • memory/4764-43-0x00000000067A0000-0x00000000067D2000-memory.dmp

    Filesize

    200KB

  • memory/4764-54-0x0000000006780000-0x000000000679E000-memory.dmp

    Filesize

    120KB

  • memory/4764-44-0x0000000071000000-0x000000007104C000-memory.dmp

    Filesize

    304KB

  • memory/4764-55-0x00000000073C0000-0x0000000007463000-memory.dmp

    Filesize

    652KB

  • memory/4764-57-0x00000000074F0000-0x000000000750A000-memory.dmp

    Filesize

    104KB

  • memory/4764-56-0x0000000007B30000-0x00000000081AA000-memory.dmp

    Filesize

    6.5MB

  • memory/4764-58-0x0000000007560000-0x000000000756A000-memory.dmp

    Filesize

    40KB

  • memory/4764-37-0x00000000055A0000-0x0000000005606000-memory.dmp

    Filesize

    408KB

  • memory/4764-60-0x00000000076F0000-0x0000000007701000-memory.dmp

    Filesize

    68KB

  • memory/4764-61-0x0000000007720000-0x000000000772E000-memory.dmp

    Filesize

    56KB

  • memory/4764-62-0x0000000007730000-0x0000000007744000-memory.dmp

    Filesize

    80KB

  • memory/4764-63-0x0000000007830000-0x000000000784A000-memory.dmp

    Filesize

    104KB

  • memory/4764-64-0x0000000007810000-0x0000000007818000-memory.dmp

    Filesize

    32KB

  • memory/4764-67-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/4764-27-0x0000000005400000-0x0000000005422000-memory.dmp

    Filesize

    136KB

  • memory/4764-26-0x0000000005080000-0x0000000005090000-memory.dmp

    Filesize

    64KB

  • memory/4764-25-0x0000000005080000-0x0000000005090000-memory.dmp

    Filesize

    64KB

  • memory/4764-22-0x00000000056C0000-0x0000000005CE8000-memory.dmp

    Filesize

    6.2MB

  • memory/4764-19-0x00000000028A0000-0x00000000028D6000-memory.dmp

    Filesize

    216KB

  • memory/4764-21-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB