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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/11/2024, 07:13

General

  • Target

    Halkbank_Extract_20241128_164557_1988850.exe

  • Size

    881KB

  • MD5

    3cc533df6ae503977ca90c53c1db0f9f

  • SHA1

    63c953be5bb951d94990d7bd257f10e333d242f5

  • SHA256

    74e2055e94f2fdb9641eae485f63be8a96190edbca72024a0bb834322418647b

  • SHA512

    f6bd98d850290aeb0577fbebfb6c79a78e7294943c164b415fe334eb6802ea9def76763c6cf86721e9d067e524afa8d50892def2b9973d98b40372031ed9422f

  • SSDEEP

    12288:u2sv+SGjpA3yKUUo6a/LnLrDIFfnObzNJcHk9SdYyFQTtWrx9jyGJgCTMogQlOio:u2xj1nDIFgb9SdbQTyuNHXQlqLCnYnJ

Malware Config

Extracted

Family

vipkeylogger

Signatures

  • VIPKeylogger

    VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.

  • Vipkeylogger family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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 3 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • 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.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Halkbank_Extract_20241128_164557_1988850.exe
    "C:\Users\Admin\AppData\Local\Temp\Halkbank_Extract_20241128_164557_1988850.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:324
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Halkbank_Extract_20241128_164557_1988850.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4924
    • C:\Users\Admin\AppData\Local\Temp\Halkbank_Extract_20241128_164557_1988850.exe
      "C:\Users\Admin\AppData\Local\Temp\Halkbank_Extract_20241128_164557_1988850.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1132

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bmjvpgpe.1gq.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/324-10-0x0000000008E00000-0x0000000008E8E000-memory.dmp

    Filesize

    568KB

  • memory/324-16-0x00000000745F0000-0x0000000074DA0000-memory.dmp

    Filesize

    7.7MB

  • memory/324-3-0x0000000005A50000-0x0000000005AE2000-memory.dmp

    Filesize

    584KB

  • memory/324-0-0x00000000745FE000-0x00000000745FF000-memory.dmp

    Filesize

    4KB

  • memory/324-5-0x00000000745F0000-0x0000000074DA0000-memory.dmp

    Filesize

    7.7MB

  • memory/324-6-0x0000000005C00000-0x0000000005C9C000-memory.dmp

    Filesize

    624KB

  • memory/324-7-0x0000000005F10000-0x0000000005F28000-memory.dmp

    Filesize

    96KB

  • memory/324-8-0x00000000745FE000-0x00000000745FF000-memory.dmp

    Filesize

    4KB

  • memory/324-2-0x0000000006100000-0x00000000066A4000-memory.dmp

    Filesize

    5.6MB

  • memory/324-9-0x00000000745F0000-0x0000000074DA0000-memory.dmp

    Filesize

    7.7MB

  • memory/324-4-0x0000000005B00000-0x0000000005B0A000-memory.dmp

    Filesize

    40KB

  • memory/324-1-0x0000000000FC0000-0x00000000010A2000-memory.dmp

    Filesize

    904KB

  • memory/1132-11-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/1132-63-0x0000000006460000-0x00000000064B0000-memory.dmp

    Filesize

    320KB

  • memory/1132-14-0x00000000745F0000-0x0000000074DA0000-memory.dmp

    Filesize

    7.7MB

  • memory/1132-62-0x00000000065E0000-0x00000000067A2000-memory.dmp

    Filesize

    1.8MB

  • memory/1132-61-0x00000000745F0000-0x0000000074DA0000-memory.dmp

    Filesize

    7.7MB

  • memory/1132-35-0x00000000745F0000-0x0000000074DA0000-memory.dmp

    Filesize

    7.7MB

  • memory/1132-64-0x0000000006CE0000-0x000000000720C000-memory.dmp

    Filesize

    5.2MB

  • memory/4924-31-0x00000000059C0000-0x0000000005D14000-memory.dmp

    Filesize

    3.3MB

  • memory/4924-51-0x0000000007280000-0x000000000728A000-memory.dmp

    Filesize

    40KB

  • memory/4924-26-0x00000000745F0000-0x0000000074DA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4924-33-0x00000000745F0000-0x0000000074DA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4924-32-0x0000000005EA0000-0x0000000005EBE000-memory.dmp

    Filesize

    120KB

  • memory/4924-34-0x0000000006080000-0x00000000060CC000-memory.dmp

    Filesize

    304KB

  • memory/4924-20-0x0000000005020000-0x0000000005086000-memory.dmp

    Filesize

    408KB

  • memory/4924-36-0x0000000006E90000-0x0000000006EC2000-memory.dmp

    Filesize

    200KB

  • memory/4924-37-0x0000000070140000-0x000000007018C000-memory.dmp

    Filesize

    304KB

  • memory/4924-47-0x00000000064B0000-0x00000000064CE000-memory.dmp

    Filesize

    120KB

  • memory/4924-48-0x00000000070D0000-0x0000000007173000-memory.dmp

    Filesize

    652KB

  • memory/4924-49-0x0000000007850000-0x0000000007ECA000-memory.dmp

    Filesize

    6.5MB

  • memory/4924-50-0x0000000007210000-0x000000000722A000-memory.dmp

    Filesize

    104KB

  • memory/4924-19-0x0000000004FB0000-0x0000000005016000-memory.dmp

    Filesize

    408KB

  • memory/4924-52-0x0000000007490000-0x0000000007526000-memory.dmp

    Filesize

    600KB

  • memory/4924-53-0x0000000007410000-0x0000000007421000-memory.dmp

    Filesize

    68KB

  • memory/4924-54-0x0000000007440000-0x000000000744E000-memory.dmp

    Filesize

    56KB

  • memory/4924-55-0x0000000007450000-0x0000000007464000-memory.dmp

    Filesize

    80KB

  • memory/4924-56-0x0000000007550000-0x000000000756A000-memory.dmp

    Filesize

    104KB

  • memory/4924-57-0x0000000007530000-0x0000000007538000-memory.dmp

    Filesize

    32KB

  • memory/4924-60-0x00000000745F0000-0x0000000074DA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4924-18-0x0000000004F10000-0x0000000004F32000-memory.dmp

    Filesize

    136KB

  • memory/4924-15-0x0000000005150000-0x0000000005778000-memory.dmp

    Filesize

    6.2MB

  • memory/4924-17-0x00000000745F0000-0x0000000074DA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4924-13-0x00000000025B0000-0x00000000025E6000-memory.dmp

    Filesize

    216KB