Analysis

  • max time kernel
    177s
  • max time network
    189s
  • 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 10:07

General

  • Target

    NEAS.6628fb77e3eefe18d7280851104b18d1889fb5ef50ce62b4db581e4ad7695a27.exe

  • Size

    511KB

  • MD5

    1db69d4fc3b5755bdeed38269789fdda

  • SHA1

    985accdc39626a9c9f35a8d2444b92f5efd64aa2

  • SHA256

    6628fb77e3eefe18d7280851104b18d1889fb5ef50ce62b4db581e4ad7695a27

  • SHA512

    23a44da33ffbb7cea92d3c07b970fae1ec32a16232e102585af9cf8dc302f816524bb380714896998afdb28cdc073221ccf770355965aecc69847b65a150dd98

  • SSDEEP

    12288:fMrZy90bBGrHw0hniwwksM9LsY8TUs2+uV+4+wSRlFcvN6SBk:uySs1hi8sssYSz2+uIUSHOMSi

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.6628fb77e3eefe18d7280851104b18d1889fb5ef50ce62b4db581e4ad7695a27.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.6628fb77e3eefe18d7280851104b18d1889fb5ef50ce62b4db581e4ad7695a27.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3048
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dE1EH61.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dE1EH61.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:2364
      • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3wi540OZ.exe
        C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3wi540OZ.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4040
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
          4⤵
            PID:1820
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 1820 -s 540
              5⤵
              • Program crash
              PID:4380
        • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4TB2Fh3.exe
          C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4TB2Fh3.exe
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:4388
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
            4⤵
              PID:1944
        • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5Ki22Th.exe
          C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5Ki22Th.exe
          2⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:4180
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\is64.bat" "
            3⤵
              PID:3084
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1820 -ip 1820
          1⤵
            PID:3024

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5Ki22Th.exe

            Filesize

            73KB

            MD5

            8bd3dce5801b165589233f19b83876e9

            SHA1

            03651adc3968ed810e3dec089849e391f92e166c

            SHA256

            1e4c2727b1539a977e5af320f7658a03021d4c37b9be63138268b1bfe9f22f87

            SHA512

            65e161f6aa4e5e24586157f3a4c7c658f2ae3226778348663a9e0fd75f2cfa8c83bf94a2e43ed25590f40d44c6205c3beb0eeb0d8c0c6e3921521a1553ed5541

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5Ki22Th.exe

            Filesize

            73KB

            MD5

            8bd3dce5801b165589233f19b83876e9

            SHA1

            03651adc3968ed810e3dec089849e391f92e166c

            SHA256

            1e4c2727b1539a977e5af320f7658a03021d4c37b9be63138268b1bfe9f22f87

            SHA512

            65e161f6aa4e5e24586157f3a4c7c658f2ae3226778348663a9e0fd75f2cfa8c83bf94a2e43ed25590f40d44c6205c3beb0eeb0d8c0c6e3921521a1553ed5541

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dE1EH61.exe

            Filesize

            389KB

            MD5

            f95f9b4bebbd894234adbda7933d89e8

            SHA1

            1ab3bb66bf4325346b0d313ab0643798f4d60543

            SHA256

            fc67b97f1ac225971f1b728b4f64534de3c4ee638a65db190e3a32cac8a8fa8a

            SHA512

            047c406ef6cb5f2c493586cd8e351293e7591f7fc770f812c48490fee32f363df2ec3781a0dd96928f886ac8954045a0a46733b14bfab8b33caa716227b06169

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dE1EH61.exe

            Filesize

            389KB

            MD5

            f95f9b4bebbd894234adbda7933d89e8

            SHA1

            1ab3bb66bf4325346b0d313ab0643798f4d60543

            SHA256

            fc67b97f1ac225971f1b728b4f64534de3c4ee638a65db190e3a32cac8a8fa8a

            SHA512

            047c406ef6cb5f2c493586cd8e351293e7591f7fc770f812c48490fee32f363df2ec3781a0dd96928f886ac8954045a0a46733b14bfab8b33caa716227b06169

          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3wi540OZ.exe

            Filesize

            300KB

            MD5

            784667bb96ccb30c4cf44f2c5f493769

            SHA1

            28185165ab4dbbb4a139ae1af0bb6934ebe05c04

            SHA256

            1025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9

            SHA512

            62c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20

          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3wi540OZ.exe

            Filesize

            300KB

            MD5

            784667bb96ccb30c4cf44f2c5f493769

            SHA1

            28185165ab4dbbb4a139ae1af0bb6934ebe05c04

            SHA256

            1025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9

            SHA512

            62c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20

          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4TB2Fh3.exe

            Filesize

            339KB

            MD5

            14d9834611ad581afcfea061652ff6cb

            SHA1

            802f964d0be7858eb2f1e7c6fcda03501fd1b71c

            SHA256

            e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60

            SHA512

            cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5

          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4TB2Fh3.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/1820-18-0x0000000000400000-0x0000000000433000-memory.dmp

            Filesize

            204KB

          • memory/1820-16-0x0000000000400000-0x0000000000433000-memory.dmp

            Filesize

            204KB

          • memory/1820-15-0x0000000000400000-0x0000000000433000-memory.dmp

            Filesize

            204KB

          • memory/1820-14-0x0000000000400000-0x0000000000433000-memory.dmp

            Filesize

            204KB

          • memory/1944-33-0x0000000007BB0000-0x0000000007BBA000-memory.dmp

            Filesize

            40KB

          • memory/1944-30-0x0000000007B10000-0x0000000007BA2000-memory.dmp

            Filesize

            584KB

          • memory/1944-31-0x0000000007D00000-0x0000000007D10000-memory.dmp

            Filesize

            64KB

          • memory/1944-29-0x0000000008020000-0x00000000085C4000-memory.dmp

            Filesize

            5.6MB

          • memory/1944-28-0x0000000073C70000-0x0000000074420000-memory.dmp

            Filesize

            7.7MB

          • memory/1944-22-0x0000000000400000-0x000000000043C000-memory.dmp

            Filesize

            240KB

          • memory/1944-39-0x0000000008BF0000-0x0000000009208000-memory.dmp

            Filesize

            6.1MB

          • memory/1944-40-0x0000000007F10000-0x000000000801A000-memory.dmp

            Filesize

            1.0MB

          • memory/1944-41-0x0000000007C90000-0x0000000007CA2000-memory.dmp

            Filesize

            72KB

          • memory/1944-42-0x0000000007E00000-0x0000000007E3C000-memory.dmp

            Filesize

            240KB

          • memory/1944-43-0x0000000007E40000-0x0000000007E8C000-memory.dmp

            Filesize

            304KB

          • memory/1944-44-0x0000000073C70000-0x0000000074420000-memory.dmp

            Filesize

            7.7MB

          • memory/1944-45-0x0000000007D00000-0x0000000007D10000-memory.dmp

            Filesize

            64KB