Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/11/2024, 09:56

General

  • Target

    Solicitação de cotação.exe

  • Size

    820KB

  • MD5

    9d69f27b49d325ccb989a8fa33bf0053

  • SHA1

    d0930220daced19a0000a3971e5f17a1192d1f1d

  • SHA256

    731523e50d68d20fb75e234c107ecbb8e39f2d7115cc1795e73eca399c548a84

  • SHA512

    f9c318f83cc16681b0c6e67acbff54881a6a8b623e6b5e069ad010d006d3d9d402994db82b6e220441104f41373b54c5fa83fb1924bc93c97f0b6f5cf0dd71da

  • SSDEEP

    12288:8l7YdUrL47qgWLvlgmoPEG9cjquHUdn6+XXlTFQSMeAKFhxZ0xHX2:CEU47IvlgmoPvqjq426A/AKTxZ0hm

Malware Config

Extracted

Family

vipkeylogger

Credentials

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 2 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 5 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 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Solicitação de cotação.exe
    "C:\Users\Admin\AppData\Local\Temp\Solicitação de cotação.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:2768
    • 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\Solicitação de cotação.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4772
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nKzgBhPm.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:976
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nKzgBhPm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC61F.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3588
    • C:\Users\Admin\AppData\Local\Temp\Solicitação de cotação.exe
      "C:\Users\Admin\AppData\Local\Temp\Solicitação de cotação.exe"
      2⤵
        PID:1192
      • C:\Users\Admin\AppData\Local\Temp\Solicitação de cotação.exe
        "C:\Users\Admin\AppData\Local\Temp\Solicitação de cotação.exe"
        2⤵
          PID:4020
        • C:\Users\Admin\AppData\Local\Temp\Solicitação de cotação.exe
          "C:\Users\Admin\AppData\Local\Temp\Solicitação de cotação.exe"
          2⤵
          • Accesses Microsoft Outlook profiles
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • outlook_office_path
          • outlook_win_path
          PID:1696

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • 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\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        18KB

        MD5

        842aa3d9b88fe7e87860b4b6c48694cc

        SHA1

        e5c6432ef31ba9b067588d09c1f2c949831f488f

        SHA256

        ded77b6d47dc0452b3f7afafe99b702197774ab4323f1c44b78781c1e11a5cf4

        SHA512

        d6c2a907994ea173bfae1e2f220ce94a7b919aed1116f1b7f219d99263d50b08d8fe9d9f9c6888eac6c9201aca70f392e78bbbb70fd6932cda5bebd108665f8b

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bkq1ui2e.0go.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\tmpC61F.tmp

        Filesize

        1KB

        MD5

        f4c296331f49515776f197efcbd9d384

        SHA1

        9f68b5a23f8bbfc4657eb99e7d29cf0110886f58

        SHA256

        75b5f3c30fd7e431d1f3c5d52d438f68090834a7553f7b15bbd9bb2b5d89dd30

        SHA512

        9cf3eee966c82864ed5d0cda470137f43e4ada6d46fe7a41c9f4488a6bf5484187451c76c79b18d1313a90c54fff9f0d581426f4c6d382f6a40f3c46c4f9ef51

      • memory/976-80-0x00000000073A0000-0x00000000073BA000-memory.dmp

        Filesize

        104KB

      • memory/976-20-0x0000000074CA0000-0x0000000075450000-memory.dmp

        Filesize

        7.7MB

      • memory/976-73-0x0000000007620000-0x0000000007C9A000-memory.dmp

        Filesize

        6.5MB

      • memory/976-74-0x0000000006FE0000-0x0000000006FFA000-memory.dmp

        Filesize

        104KB

      • memory/976-77-0x0000000007260000-0x0000000007271000-memory.dmp

        Filesize

        68KB

      • memory/976-78-0x0000000007290000-0x000000000729E000-memory.dmp

        Filesize

        56KB

      • memory/976-63-0x000000006FBF0000-0x000000006FC3C000-memory.dmp

        Filesize

        304KB

      • memory/976-89-0x0000000074CA0000-0x0000000075450000-memory.dmp

        Filesize

        7.7MB

      • memory/976-21-0x0000000074CA0000-0x0000000075450000-memory.dmp

        Filesize

        7.7MB

      • memory/1696-91-0x0000000006C50000-0x0000000006CA0000-memory.dmp

        Filesize

        320KB

      • memory/1696-26-0x0000000000400000-0x0000000000448000-memory.dmp

        Filesize

        288KB

      • memory/1696-90-0x0000000006DD0000-0x0000000006F92000-memory.dmp

        Filesize

        1.8MB

      • memory/2768-10-0x0000000003180000-0x000000000320C000-memory.dmp

        Filesize

        560KB

      • memory/2768-4-0x0000000005880000-0x000000000588A000-memory.dmp

        Filesize

        40KB

      • memory/2768-3-0x00000000058F0000-0x0000000005982000-memory.dmp

        Filesize

        584KB

      • memory/2768-2-0x0000000005E00000-0x00000000063A4000-memory.dmp

        Filesize

        5.6MB

      • memory/2768-0-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

        Filesize

        4KB

      • memory/2768-5-0x0000000005B20000-0x0000000005BBC000-memory.dmp

        Filesize

        624KB

      • memory/2768-9-0x0000000074CA0000-0x0000000075450000-memory.dmp

        Filesize

        7.7MB

      • memory/2768-8-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

        Filesize

        4KB

      • memory/2768-1-0x0000000000DD0000-0x0000000000EA4000-memory.dmp

        Filesize

        848KB

      • memory/2768-7-0x0000000005D40000-0x0000000005D5C000-memory.dmp

        Filesize

        112KB

      • memory/2768-6-0x0000000074CA0000-0x0000000075450000-memory.dmp

        Filesize

        7.7MB

      • memory/2768-49-0x0000000074CA0000-0x0000000075450000-memory.dmp

        Filesize

        7.7MB

      • memory/4772-17-0x0000000005B70000-0x0000000006198000-memory.dmp

        Filesize

        6.2MB

      • memory/4772-50-0x0000000006DD0000-0x0000000006E02000-memory.dmp

        Filesize

        200KB

      • memory/4772-61-0x0000000006DB0000-0x0000000006DCE000-memory.dmp

        Filesize

        120KB

      • memory/4772-62-0x0000000007A00000-0x0000000007AA3000-memory.dmp

        Filesize

        652KB

      • memory/4772-51-0x000000006FBF0000-0x000000006FC3C000-memory.dmp

        Filesize

        304KB

      • memory/4772-48-0x0000000006BC0000-0x0000000006C0C000-memory.dmp

        Filesize

        304KB

      • memory/4772-47-0x0000000006810000-0x000000000682E000-memory.dmp

        Filesize

        120KB

      • memory/4772-75-0x0000000007BB0000-0x0000000007BBA000-memory.dmp

        Filesize

        40KB

      • memory/4772-76-0x0000000007DB0000-0x0000000007E46000-memory.dmp

        Filesize

        600KB

      • memory/4772-28-0x0000000006280000-0x00000000065D4000-memory.dmp

        Filesize

        3.3MB

      • memory/4772-23-0x00000000058D0000-0x00000000058F2000-memory.dmp

        Filesize

        136KB

      • memory/4772-79-0x0000000007D70000-0x0000000007D84000-memory.dmp

        Filesize

        80KB

      • memory/4772-24-0x0000000005A70000-0x0000000005AD6000-memory.dmp

        Filesize

        408KB

      • memory/4772-81-0x0000000007E50000-0x0000000007E58000-memory.dmp

        Filesize

        32KB

      • memory/4772-25-0x0000000006210000-0x0000000006276000-memory.dmp

        Filesize

        408KB

      • memory/4772-22-0x0000000074CA0000-0x0000000075450000-memory.dmp

        Filesize

        7.7MB

      • memory/4772-18-0x0000000074CA0000-0x0000000075450000-memory.dmp

        Filesize

        7.7MB

      • memory/4772-88-0x0000000074CA0000-0x0000000075450000-memory.dmp

        Filesize

        7.7MB

      • memory/4772-16-0x0000000074CA0000-0x0000000075450000-memory.dmp

        Filesize

        7.7MB

      • memory/4772-15-0x0000000002EF0000-0x0000000002F26000-memory.dmp

        Filesize

        216KB