Analysis

  • max time kernel
    133s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-10-2024 14:22

General

  • Target

    Bank transfer receipt 241015.exe

  • Size

    499KB

  • MD5

    a56e9ac0bdfb2994a47cff685f5082a8

  • SHA1

    855fef6a65caf563685f757a11b653a43472e4be

  • SHA256

    1546c45496290063818a4e24b240aa8cd88c8023dccb2876706a569a0359be9e

  • SHA512

    97bb5879e5a1be00eb980a5e51a6caa69fa4e5731e377236c4abf3b9cdaa7a5ef0b3040feb468c219e80ad42b49049f0fb74d3843bf896a4d23a947804a73342

  • SSDEEP

    12288:62UScVclz+IuSqKixs7p2JYQE3Pu98rxG6ortJ6zdhp:6UcVuSpW/3RN

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot7952998151:AAFh98iY7kaOlHAR0qftD3ZcqGbQm0TXbBY/sendMessage?chat_id=5692813672

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Snakekeylogger family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Bank transfer receipt 241015.exe
    "C:\Users\Admin\AppData\Local\Temp\Bank transfer receipt 241015.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:4604
    • 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\Bank transfer receipt 241015.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4180
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\vYxHVdr.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4372
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vYxHVdr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp10F3.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4976
    • C:\Users\Admin\AppData\Local\Temp\Bank transfer receipt 241015.exe
      "C:\Users\Admin\AppData\Local\Temp\Bank transfer receipt 241015.exe"
      2⤵
        PID:1864
      • C:\Users\Admin\AppData\Local\Temp\Bank transfer receipt 241015.exe
        "C:\Users\Admin\AppData\Local\Temp\Bank transfer receipt 241015.exe"
        2⤵
        • Checks computer location settings
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1472
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\Bank transfer receipt 241015.exe"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2104
          • C:\Windows\SysWOW64\choice.exe
            choice /C Y /N /D Y /T 3
            4⤵
            • System Location Discovery: System Language Discovery
            PID:1160

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Bank transfer receipt 241015.exe.log

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

      Filesize

      2KB

      MD5

      968cb9309758126772781b83adb8a28f

      SHA1

      8da30e71accf186b2ba11da1797cf67f8f78b47c

      SHA256

      92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

      SHA512

      4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_eyhvi2gx.ffv.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp10F3.tmp

      Filesize

      1KB

      MD5

      d74f85a14a08c40dfb9805ff4d92b725

      SHA1

      34566eb020711f50cc0256c7661866a2808cb1be

      SHA256

      f0cc9aea904d4b450ea41a42ec78ddd00e1aad3fddbe080b7257b97c3a2fbeb9

      SHA512

      45e3926a708f244bc820ee255b0326a71a21860c0a061b6f96aa9520c0e14b421753710b42aa54490919ceaa381efacd4a1bf8bef0c298b7f96495966542bcd7

    • memory/1472-32-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/4180-25-0x0000000005ED0000-0x0000000005F36000-memory.dmp

      Filesize

      408KB

    • memory/4180-23-0x0000000005680000-0x00000000056A2000-memory.dmp

      Filesize

      136KB

    • memory/4180-87-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/4180-81-0x0000000007BA0000-0x0000000007BBA000-memory.dmp

      Filesize

      104KB

    • memory/4180-80-0x0000000007AA0000-0x0000000007AB4000-memory.dmp

      Filesize

      80KB

    • memory/4180-78-0x0000000007A60000-0x0000000007A71000-memory.dmp

      Filesize

      68KB

    • memory/4180-15-0x0000000002C20000-0x0000000002C56000-memory.dmp

      Filesize

      216KB

    • memory/4180-16-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/4180-17-0x0000000005740000-0x0000000005D68000-memory.dmp

      Filesize

      6.2MB

    • memory/4180-18-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/4180-77-0x0000000007AE0000-0x0000000007B76000-memory.dmp

      Filesize

      600KB

    • memory/4180-20-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/4180-72-0x0000000007710000-0x00000000077B3000-memory.dmp

      Filesize

      652KB

    • memory/4180-51-0x00000000076C0000-0x00000000076F2000-memory.dmp

      Filesize

      200KB

    • memory/4180-52-0x0000000070A80000-0x0000000070ACC000-memory.dmp

      Filesize

      304KB

    • memory/4180-62-0x00000000076A0000-0x00000000076BE000-memory.dmp

      Filesize

      120KB

    • memory/4180-24-0x0000000005E60000-0x0000000005EC6000-memory.dmp

      Filesize

      408KB

    • memory/4180-38-0x0000000005F40000-0x0000000006294000-memory.dmp

      Filesize

      3.3MB

    • memory/4372-75-0x00000000075E0000-0x00000000075FA000-memory.dmp

      Filesize

      104KB

    • memory/4372-79-0x0000000007810000-0x000000000781E000-memory.dmp

      Filesize

      56KB

    • memory/4372-88-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/4372-74-0x0000000007C20000-0x000000000829A000-memory.dmp

      Filesize

      6.5MB

    • memory/4372-50-0x0000000006780000-0x00000000067CC000-memory.dmp

      Filesize

      304KB

    • memory/4372-49-0x00000000062B0000-0x00000000062CE000-memory.dmp

      Filesize

      120KB

    • memory/4372-63-0x0000000070A80000-0x0000000070ACC000-memory.dmp

      Filesize

      304KB

    • memory/4372-82-0x0000000007900000-0x0000000007908000-memory.dmp

      Filesize

      32KB

    • memory/4372-26-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/4372-22-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/4372-76-0x0000000007650000-0x000000000765A000-memory.dmp

      Filesize

      40KB

    • memory/4372-19-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/4604-7-0x00000000058F0000-0x0000000005902000-memory.dmp

      Filesize

      72KB

    • memory/4604-1-0x0000000000840000-0x00000000008C4000-memory.dmp

      Filesize

      528KB

    • memory/4604-48-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/4604-10-0x0000000006740000-0x00000000067A8000-memory.dmp

      Filesize

      416KB

    • memory/4604-0-0x00000000744DE000-0x00000000744DF000-memory.dmp

      Filesize

      4KB

    • memory/4604-9-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/4604-8-0x00000000744DE000-0x00000000744DF000-memory.dmp

      Filesize

      4KB

    • memory/4604-4-0x0000000005480000-0x000000000548A000-memory.dmp

      Filesize

      40KB

    • memory/4604-2-0x0000000005900000-0x0000000005EA4000-memory.dmp

      Filesize

      5.6MB

    • memory/4604-6-0x0000000005530000-0x00000000055CC000-memory.dmp

      Filesize

      624KB

    • memory/4604-3-0x00000000052A0000-0x0000000005332000-memory.dmp

      Filesize

      584KB

    • memory/4604-5-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB