Analysis

  • max time kernel
    184s
  • max time network
    198s
  • 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 10:10

General

  • Target

    NEAS.84e44d34a9b67d2ad81706eaf9d8e9a695338209aa31cfcfc327e44c0a4abb5f.exe

  • Size

    511KB

  • MD5

    34c15acb342fe03f31a8e89cac79eeea

  • SHA1

    8531d66d189e8bfec4edb949b37681fc00b27a39

  • SHA256

    84e44d34a9b67d2ad81706eaf9d8e9a695338209aa31cfcfc327e44c0a4abb5f

  • SHA512

    f07592117e0edf7dbc9fd4cd032e7c786f0f42f2f6b1c54958a14f1644df11a57a7f8a6afbe487606f798abd201408bc7de19ae0c8f9639c1c3a9a84feb277c1

  • SSDEEP

    12288:4MrGy90cPclKJrUwFUSY8TUs2auB+4+wSRDFgCfqPRqZ98Vg:eyhbYSz2auUUS120qZqZ9eg

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.84e44d34a9b67d2ad81706eaf9d8e9a695338209aa31cfcfc327e44c0a4abb5f.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.84e44d34a9b67d2ad81706eaf9d8e9a695338209aa31cfcfc327e44c0a4abb5f.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3528
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\xx9nA81.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\xx9nA81.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1640
      • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3sK387mE.exe
        C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3sK387mE.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3652
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
          4⤵
            PID:4012
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 4012 -s 540
              5⤵
              • Program crash
              PID:4732
        • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4ZI4ls8.exe
          C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4ZI4ls8.exe
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:3012
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
            4⤵
              PID:4812
        • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5NC95oT.exe
          C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5NC95oT.exe
          2⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:1052
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\is64.bat" "
            3⤵
              PID:2560
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4012 -ip 4012
          1⤵
            PID:3556

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5NC95oT.exe

            Filesize

            73KB

            MD5

            07892df8e3beb8d955670bafd1bbe1f3

            SHA1

            09e0f7456867c3655e38072928009b6be33f67ea

            SHA256

            2ff2927f1c28e501d835c8c6f5ffa19d2b4310aef0b1a2712bbdfaf543ffbd36

            SHA512

            284c67f401b779094fa37970d4b4603843f6440f541fd146982f15654f73ab8d4190eef67c9590da68cd50cacc3cf409c154c7c03cd9d2f314be14cbaa01ded4

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5NC95oT.exe

            Filesize

            73KB

            MD5

            07892df8e3beb8d955670bafd1bbe1f3

            SHA1

            09e0f7456867c3655e38072928009b6be33f67ea

            SHA256

            2ff2927f1c28e501d835c8c6f5ffa19d2b4310aef0b1a2712bbdfaf543ffbd36

            SHA512

            284c67f401b779094fa37970d4b4603843f6440f541fd146982f15654f73ab8d4190eef67c9590da68cd50cacc3cf409c154c7c03cd9d2f314be14cbaa01ded4

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\xx9nA81.exe

            Filesize

            389KB

            MD5

            950f02cef851e2446387469dd57dc6b9

            SHA1

            95f85912995ab5860d92fd127cde918b1845271c

            SHA256

            b35a07eca2fb0fe638ab08ad679d8e088a5db4971250c436b5fe916a283bd8b2

            SHA512

            fd47db976c9a7c9c54ce4eb534cb3c9c99af2f96874431de933b3af0c72bfb13f47aa7521a0bc25c5eac7f2e8deeab08d055a2cf8e75d1d76e71c63a727a3746

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\xx9nA81.exe

            Filesize

            389KB

            MD5

            950f02cef851e2446387469dd57dc6b9

            SHA1

            95f85912995ab5860d92fd127cde918b1845271c

            SHA256

            b35a07eca2fb0fe638ab08ad679d8e088a5db4971250c436b5fe916a283bd8b2

            SHA512

            fd47db976c9a7c9c54ce4eb534cb3c9c99af2f96874431de933b3af0c72bfb13f47aa7521a0bc25c5eac7f2e8deeab08d055a2cf8e75d1d76e71c63a727a3746

          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3sK387mE.exe

            Filesize

            300KB

            MD5

            784667bb96ccb30c4cf44f2c5f493769

            SHA1

            28185165ab4dbbb4a139ae1af0bb6934ebe05c04

            SHA256

            1025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9

            SHA512

            62c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20

          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3sK387mE.exe

            Filesize

            300KB

            MD5

            784667bb96ccb30c4cf44f2c5f493769

            SHA1

            28185165ab4dbbb4a139ae1af0bb6934ebe05c04

            SHA256

            1025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9

            SHA512

            62c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20

          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4ZI4ls8.exe

            Filesize

            339KB

            MD5

            14d9834611ad581afcfea061652ff6cb

            SHA1

            802f964d0be7858eb2f1e7c6fcda03501fd1b71c

            SHA256

            e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60

            SHA512

            cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5

          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4ZI4ls8.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/4012-18-0x0000000000400000-0x0000000000433000-memory.dmp

            Filesize

            204KB

          • memory/4012-16-0x0000000000400000-0x0000000000433000-memory.dmp

            Filesize

            204KB

          • memory/4012-15-0x0000000000400000-0x0000000000433000-memory.dmp

            Filesize

            204KB

          • memory/4012-14-0x0000000000400000-0x0000000000433000-memory.dmp

            Filesize

            204KB

          • memory/4812-34-0x0000000007B00000-0x0000000007B0A000-memory.dmp

            Filesize

            40KB

          • memory/4812-31-0x0000000007910000-0x00000000079A2000-memory.dmp

            Filesize

            584KB

          • memory/4812-33-0x0000000007B50000-0x0000000007B60000-memory.dmp

            Filesize

            64KB

          • memory/4812-30-0x0000000007E00000-0x00000000083A4000-memory.dmp

            Filesize

            5.6MB

          • memory/4812-28-0x0000000073AB0000-0x0000000074260000-memory.dmp

            Filesize

            7.7MB

          • memory/4812-22-0x0000000000400000-0x000000000043C000-memory.dmp

            Filesize

            240KB

          • memory/4812-39-0x0000000073AB0000-0x0000000074260000-memory.dmp

            Filesize

            7.7MB

          • memory/4812-40-0x0000000007B50000-0x0000000007B60000-memory.dmp

            Filesize

            64KB

          • memory/4812-41-0x00000000089D0000-0x0000000008FE8000-memory.dmp

            Filesize

            6.1MB

          • memory/4812-42-0x00000000083B0000-0x00000000084BA000-memory.dmp

            Filesize

            1.0MB

          • memory/4812-43-0x0000000007D30000-0x0000000007D42000-memory.dmp

            Filesize

            72KB

          • memory/4812-44-0x0000000007D90000-0x0000000007DCC000-memory.dmp

            Filesize

            240KB

          • memory/4812-45-0x00000000084C0000-0x000000000850C000-memory.dmp

            Filesize

            304KB