Analysis

  • max time kernel
    139s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-11-2023 10:17

General

  • Target

    NEAS.379259ec31109c121dbd221d0e04d416ab1916e94f8f1f8c582ab595ef399f16.exe

  • Size

    511KB

  • MD5

    c406d90bbc2fad9222280566d3b659b9

  • SHA1

    d9265440a00860179434d4b93f65a89cbfdab5b2

  • SHA256

    379259ec31109c121dbd221d0e04d416ab1916e94f8f1f8c582ab595ef399f16

  • SHA512

    8beae246a21a9cd033a99a5674994347891b57b7546a21784bebe5f4ba157b5313b2e561e99b9682119b7ec2f5363101a1b0309b0b9dc0f840ac62fd08787c27

  • SSDEEP

    12288:KMrcy90ZcJgpnowHjG9Y8TUs2euF+4+wSRoFCrGYj:OySGYSz2eu4USGAt

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 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.379259ec31109c121dbd221d0e04d416ab1916e94f8f1f8c582ab595ef399f16.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.379259ec31109c121dbd221d0e04d416ab1916e94f8f1f8c582ab595ef399f16.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:552
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\DK9ZL92.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\DK9ZL92.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:3032
      • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3LS347IR.exe
        C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3LS347IR.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1728
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
          4⤵
            PID:1284
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 192
              5⤵
              • Program crash
              PID:4276
        • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4by5Yn0.exe
          C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4by5Yn0.exe
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:5112
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
            4⤵
              PID:964
        • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5PB30JC.exe
          C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5PB30JC.exe
          2⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:3120
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\is64.bat" "
            3⤵
              PID:4840
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1284 -ip 1284
          1⤵
            PID:4788

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5PB30JC.exe

            Filesize

            73KB

            MD5

            3f44aaa76ca16c2f5b764466ae86f4bd

            SHA1

            4fbb5ed740ce34bac7dc2cec56256751188bdc5c

            SHA256

            1215eb93fcba15eabbc1017c3d8a9da2f4afaaa7ae0969fbfc785b89293d649e

            SHA512

            60a3dff7e970e63983f0c843c3e22296c8d684ce874d683d9b9e22faee239f773206015b6378600f4dc448d952614e5b8a8f009f71e0bba5e211da30f928560e

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5PB30JC.exe

            Filesize

            73KB

            MD5

            3f44aaa76ca16c2f5b764466ae86f4bd

            SHA1

            4fbb5ed740ce34bac7dc2cec56256751188bdc5c

            SHA256

            1215eb93fcba15eabbc1017c3d8a9da2f4afaaa7ae0969fbfc785b89293d649e

            SHA512

            60a3dff7e970e63983f0c843c3e22296c8d684ce874d683d9b9e22faee239f773206015b6378600f4dc448d952614e5b8a8f009f71e0bba5e211da30f928560e

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\DK9ZL92.exe

            Filesize

            389KB

            MD5

            15fdf661d1e428cca7f12b8b4080e7b1

            SHA1

            116a3045e2be2c0b98a37884638f46c4b2bee243

            SHA256

            3858429c413d76594b2e6c68b0d56aad98cb5cf8b606c0529ca6114b48dbd1ed

            SHA512

            8e01f9262d9c0249811b4a8af9de72b6fc113fc0e142ff65cbe5cdd9af389072cead20d1b036208fe81d7a5bd519a9d26639a69b0e51c2baaf3638c688e0c10d

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\DK9ZL92.exe

            Filesize

            389KB

            MD5

            15fdf661d1e428cca7f12b8b4080e7b1

            SHA1

            116a3045e2be2c0b98a37884638f46c4b2bee243

            SHA256

            3858429c413d76594b2e6c68b0d56aad98cb5cf8b606c0529ca6114b48dbd1ed

            SHA512

            8e01f9262d9c0249811b4a8af9de72b6fc113fc0e142ff65cbe5cdd9af389072cead20d1b036208fe81d7a5bd519a9d26639a69b0e51c2baaf3638c688e0c10d

          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3LS347IR.exe

            Filesize

            300KB

            MD5

            784667bb96ccb30c4cf44f2c5f493769

            SHA1

            28185165ab4dbbb4a139ae1af0bb6934ebe05c04

            SHA256

            1025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9

            SHA512

            62c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20

          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3LS347IR.exe

            Filesize

            300KB

            MD5

            784667bb96ccb30c4cf44f2c5f493769

            SHA1

            28185165ab4dbbb4a139ae1af0bb6934ebe05c04

            SHA256

            1025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9

            SHA512

            62c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20

          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4by5Yn0.exe

            Filesize

            339KB

            MD5

            14d9834611ad581afcfea061652ff6cb

            SHA1

            802f964d0be7858eb2f1e7c6fcda03501fd1b71c

            SHA256

            e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60

            SHA512

            cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5

          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4by5Yn0.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/964-36-0x0000000008EB0000-0x00000000094C8000-memory.dmp

            Filesize

            6.1MB

          • memory/964-43-0x00000000080C0000-0x000000000810C000-memory.dmp

            Filesize

            304KB

          • memory/964-45-0x0000000007FF0000-0x0000000008000000-memory.dmp

            Filesize

            64KB

          • memory/964-29-0x00000000082E0000-0x0000000008884000-memory.dmp

            Filesize

            5.6MB

          • memory/964-28-0x0000000073E40000-0x00000000745F0000-memory.dmp

            Filesize

            7.7MB

          • memory/964-31-0x0000000007DD0000-0x0000000007E62000-memory.dmp

            Filesize

            584KB

          • memory/964-34-0x0000000007D90000-0x0000000007D9A000-memory.dmp

            Filesize

            40KB

          • memory/964-32-0x0000000007FF0000-0x0000000008000000-memory.dmp

            Filesize

            64KB

          • memory/964-44-0x0000000073E40000-0x00000000745F0000-memory.dmp

            Filesize

            7.7MB

          • memory/964-22-0x0000000000400000-0x000000000043C000-memory.dmp

            Filesize

            240KB

          • memory/964-40-0x0000000008020000-0x0000000008032000-memory.dmp

            Filesize

            72KB

          • memory/964-38-0x0000000008110000-0x000000000821A000-memory.dmp

            Filesize

            1.0MB

          • memory/964-41-0x0000000008080000-0x00000000080BC000-memory.dmp

            Filesize

            240KB

          • memory/1284-15-0x0000000000400000-0x0000000000433000-memory.dmp

            Filesize

            204KB

          • memory/1284-14-0x0000000000400000-0x0000000000433000-memory.dmp

            Filesize

            204KB

          • memory/1284-16-0x0000000000400000-0x0000000000433000-memory.dmp

            Filesize

            204KB

          • memory/1284-18-0x0000000000400000-0x0000000000433000-memory.dmp

            Filesize

            204KB