Analysis

  • max time kernel
    151s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-11-2023 10:09

General

  • Target

    NEAS.6a1d11ef3a0d25efc377827f0565c6da1efc4b7d421fc66e02777b6aa92d6871.exe

  • Size

    511KB

  • MD5

    bb6e1c55fcaf53ec5b41ef9998d2ec9c

  • SHA1

    a77160dceadaebdb599f4e7aaeab72e23e2a5fb8

  • SHA256

    6a1d11ef3a0d25efc377827f0565c6da1efc4b7d421fc66e02777b6aa92d6871

  • SHA512

    e93d3506c5041b49db0da9672dfe5a8beeca8817d56173f16ea8fd6ab3a456c79ba061fe1052e34e459b9cfbb0af9c10a3e523b1331d25982fb9fb4d9bed1fb7

  • SSDEEP

    12288:aMr7y90Bn1wz/ZIHwDTlY8TUs2MuX+4+wSRsFx3fDKxovL6p:By2olYSz2MuuUS+7fy

Malware Config

Extracted

Family

redline

Botnet

taiga

C2

5.42.92.51:19057

Signatures

  • Detect Mystic stealer payload 4 IoCs
  • Mystic

    Mystic is an infostealer written in C++.

  • RedLine

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

  • RedLine payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.6a1d11ef3a0d25efc377827f0565c6da1efc4b7d421fc66e02777b6aa92d6871.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.6a1d11ef3a0d25efc377827f0565c6da1efc4b7d421fc66e02777b6aa92d6871.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3544
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\za5JO91.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\za5JO91.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:212
      • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1UE00Hu0.exe
        C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1UE00Hu0.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2168
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
          4⤵
            PID:3484
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
            4⤵
              PID:4504
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 4504 -s 540
                5⤵
                • Program crash
                PID:2928
          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yl7412.exe
            C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yl7412.exe
            3⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1068
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
              4⤵
                PID:4948
          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Jl6py67.exe
            C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Jl6py67.exe
            2⤵
            • Checks computer location settings
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4164
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\is64.bat" "
              3⤵
                PID:2512
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4504 -ip 4504
            1⤵
              PID:4920

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Jl6py67.exe

              Filesize

              73KB

              MD5

              23574eca000c96d4d01d0cbf5447c80e

              SHA1

              b3d86a0b7d5327ea6380d49d247101325d10e36c

              SHA256

              0202fa9f89cf4758770596aa69e85993e2fcd9500c546d71a2b3d217b6090a29

              SHA512

              e2c27bbfd8a6f7d85d881bca74bb6b24a6e55f702c56f23ede4d76136c8dd589f56f6df1b989c3ab6e91a2c0be39c9b79c23ba7408b7cc0ac44d27c6ff29c0df

            • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7Jl6py67.exe

              Filesize

              73KB

              MD5

              23574eca000c96d4d01d0cbf5447c80e

              SHA1

              b3d86a0b7d5327ea6380d49d247101325d10e36c

              SHA256

              0202fa9f89cf4758770596aa69e85993e2fcd9500c546d71a2b3d217b6090a29

              SHA512

              e2c27bbfd8a6f7d85d881bca74bb6b24a6e55f702c56f23ede4d76136c8dd589f56f6df1b989c3ab6e91a2c0be39c9b79c23ba7408b7cc0ac44d27c6ff29c0df

            • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\za5JO91.exe

              Filesize

              389KB

              MD5

              0406905e8736b80d0500a4036f0ffdf1

              SHA1

              ac97268be80f46ee6e859058e2c3870ad1d2508b

              SHA256

              f26ac4a90ae898eba6c686fcaa740b773a17993c0b0059db16ef3c232b888f61

              SHA512

              c32651db858f5f62f6552057807bc8f3904d1216b74e69531e53a600d2289bc41d0680de216b9ae370a7c927c4763ff674d6b6a5dcee84d9c249ad21f889e7d0

            • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\za5JO91.exe

              Filesize

              389KB

              MD5

              0406905e8736b80d0500a4036f0ffdf1

              SHA1

              ac97268be80f46ee6e859058e2c3870ad1d2508b

              SHA256

              f26ac4a90ae898eba6c686fcaa740b773a17993c0b0059db16ef3c232b888f61

              SHA512

              c32651db858f5f62f6552057807bc8f3904d1216b74e69531e53a600d2289bc41d0680de216b9ae370a7c927c4763ff674d6b6a5dcee84d9c249ad21f889e7d0

            • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1UE00Hu0.exe

              Filesize

              300KB

              MD5

              784667bb96ccb30c4cf44f2c5f493769

              SHA1

              28185165ab4dbbb4a139ae1af0bb6934ebe05c04

              SHA256

              1025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9

              SHA512

              62c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20

            • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1UE00Hu0.exe

              Filesize

              300KB

              MD5

              784667bb96ccb30c4cf44f2c5f493769

              SHA1

              28185165ab4dbbb4a139ae1af0bb6934ebe05c04

              SHA256

              1025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9

              SHA512

              62c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20

            • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yl7412.exe

              Filesize

              339KB

              MD5

              14d9834611ad581afcfea061652ff6cb

              SHA1

              802f964d0be7858eb2f1e7c6fcda03501fd1b71c

              SHA256

              e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60

              SHA512

              cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5

            • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2yl7412.exe

              Filesize

              339KB

              MD5

              14d9834611ad581afcfea061652ff6cb

              SHA1

              802f964d0be7858eb2f1e7c6fcda03501fd1b71c

              SHA256

              e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60

              SHA512

              cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5

            • C:\Users\Admin\AppData\Local\Temp\is64.bat

              Filesize

              181B

              MD5

              225edee1d46e0a80610db26b275d72fb

              SHA1

              ce206abf11aaf19278b72f5021cc64b1b427b7e8

              SHA256

              e1befb57d724c9dc760cf42d7e0609212b22faeb2dc0c3ffe2fbd7134ff69559

              SHA512

              4f01a2a248a1322cb690b7395b818d2780e46f4884e59f1ab96125d642b6358eea97c7fad6023ef17209b218daa9c88d15ea2b92f124ecb8434c0c7b4a710504

            • C:\Users\Admin\AppData\Local\Temp\is64.txt

              Filesize

              3B

              MD5

              a5ea0ad9260b1550a14cc58d2c39b03d

              SHA1

              f0aedf295071ed34ab8c6a7692223d22b6a19841

              SHA256

              f1b2f662800122bed0ff255693df89c4487fbdcf453d3524a42d4ec20c3d9c04

              SHA512

              7c735c613ece191801114785c1ee26a0485cbf1e8ee2c3b85ba1ad290ef75eec9fede5e1a5dc26d504701f3542e6b6457818f4c1d62448d0db40d5f35c357d74

            • memory/4504-18-0x0000000000400000-0x0000000000433000-memory.dmp

              Filesize

              204KB

            • memory/4504-16-0x0000000000400000-0x0000000000433000-memory.dmp

              Filesize

              204KB

            • memory/4504-15-0x0000000000400000-0x0000000000433000-memory.dmp

              Filesize

              204KB

            • memory/4504-14-0x0000000000400000-0x0000000000433000-memory.dmp

              Filesize

              204KB

            • memory/4948-34-0x0000000007600000-0x000000000760A000-memory.dmp

              Filesize

              40KB

            • memory/4948-30-0x0000000007540000-0x00000000075D2000-memory.dmp

              Filesize

              584KB

            • memory/4948-33-0x0000000007510000-0x0000000007520000-memory.dmp

              Filesize

              64KB

            • memory/4948-29-0x0000000007A50000-0x0000000007FF4000-memory.dmp

              Filesize

              5.6MB

            • memory/4948-28-0x0000000074530000-0x0000000074CE0000-memory.dmp

              Filesize

              7.7MB

            • memory/4948-22-0x0000000000400000-0x000000000043C000-memory.dmp

              Filesize

              240KB

            • memory/4948-39-0x0000000008620000-0x0000000008C38000-memory.dmp

              Filesize

              6.1MB

            • memory/4948-40-0x0000000008000000-0x000000000810A000-memory.dmp

              Filesize

              1.0MB

            • memory/4948-41-0x0000000007910000-0x0000000007922000-memory.dmp

              Filesize

              72KB

            • memory/4948-42-0x0000000007970000-0x00000000079AC000-memory.dmp

              Filesize

              240KB

            • memory/4948-43-0x00000000079B0000-0x00000000079FC000-memory.dmp

              Filesize

              304KB

            • memory/4948-44-0x0000000074530000-0x0000000074CE0000-memory.dmp

              Filesize

              7.7MB

            • memory/4948-45-0x0000000007510000-0x0000000007520000-memory.dmp

              Filesize

              64KB