Analysis

  • max time kernel
    156s
  • max time network
    165s
  • 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 10:13

General

  • Target

    NEAS.016bad4b781a10f61e8a1ad24ecd6641089f12099046c97e2d8d624d30656cda.exe

  • Size

    511KB

  • MD5

    55d3f5b28d5529172277422019dd5d12

  • SHA1

    09365561b4326f09712ccddcd37657831a67c3c1

  • SHA256

    016bad4b781a10f61e8a1ad24ecd6641089f12099046c97e2d8d624d30656cda

  • SHA512

    8d03aad075158610a82e0864bba1238161b2ae19c933810c6a83d533eaabadef20630a20521b5be4b66706bdc95cba47fe87feb513b214df4f228e3f4bec29d6

  • SSDEEP

    12288:4MrFy90C222VWJw3rMfLrY8TUs2euF+4+wSRIFu2qPRqlS1C:dylSV9rWrYSz2eu4USq5qZqlS8

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.016bad4b781a10f61e8a1ad24ecd6641089f12099046c97e2d8d624d30656cda.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.016bad4b781a10f61e8a1ad24ecd6641089f12099046c97e2d8d624d30656cda.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2012
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\My2kq93.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\My2kq93.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1392
      • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3Gs584tu.exe
        C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3Gs584tu.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4948
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
          4⤵
            PID:5044
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 5044 -s 192
              5⤵
              • Program crash
              PID:1284
        • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4wt2Fr8.exe
          C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4wt2Fr8.exe
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:1808
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
            4⤵
              PID:2120
        • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5KB39Jp.exe
          C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5KB39Jp.exe
          2⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:2584
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\is64.bat" "
            3⤵
              PID:4816
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 5044 -ip 5044
          1⤵
            PID:2088

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5KB39Jp.exe

            Filesize

            73KB

            MD5

            79926320de53496b8835f1d601729d28

            SHA1

            cea5175ae6895e7cd09d5b975b031d54b01d0940

            SHA256

            b3db9be75345deaf17f062a7f98a2d0516ecccb9b7c0a08855ea63f4f206e7fa

            SHA512

            e1d76500f18772f32ce7bbf35b4ca02030c56f0c7121350ab522a14328cb3ac44a5da7b1fd06bce2b6ca1e7c3e69157923f9da544da42488024243b3ddafbed5

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5KB39Jp.exe

            Filesize

            73KB

            MD5

            79926320de53496b8835f1d601729d28

            SHA1

            cea5175ae6895e7cd09d5b975b031d54b01d0940

            SHA256

            b3db9be75345deaf17f062a7f98a2d0516ecccb9b7c0a08855ea63f4f206e7fa

            SHA512

            e1d76500f18772f32ce7bbf35b4ca02030c56f0c7121350ab522a14328cb3ac44a5da7b1fd06bce2b6ca1e7c3e69157923f9da544da42488024243b3ddafbed5

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\My2kq93.exe

            Filesize

            389KB

            MD5

            b0d13f6ed9006fdd247897cb49036427

            SHA1

            8fc70a46afade8db77148a40ff02212a6d86b2cd

            SHA256

            22227096b2e59c9f68529cd55c613a7838348fba12f93f4147bf1ad68c1aa756

            SHA512

            3a2fe970e1c6fa93ce910a94a4b41e23e7991958d56e5d40bf8e385c79979cd1e69e3308b1c609de0189654e2f6371375112946130171393a1cbe868a320505e

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\My2kq93.exe

            Filesize

            389KB

            MD5

            b0d13f6ed9006fdd247897cb49036427

            SHA1

            8fc70a46afade8db77148a40ff02212a6d86b2cd

            SHA256

            22227096b2e59c9f68529cd55c613a7838348fba12f93f4147bf1ad68c1aa756

            SHA512

            3a2fe970e1c6fa93ce910a94a4b41e23e7991958d56e5d40bf8e385c79979cd1e69e3308b1c609de0189654e2f6371375112946130171393a1cbe868a320505e

          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3Gs584tu.exe

            Filesize

            300KB

            MD5

            784667bb96ccb30c4cf44f2c5f493769

            SHA1

            28185165ab4dbbb4a139ae1af0bb6934ebe05c04

            SHA256

            1025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9

            SHA512

            62c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20

          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3Gs584tu.exe

            Filesize

            300KB

            MD5

            784667bb96ccb30c4cf44f2c5f493769

            SHA1

            28185165ab4dbbb4a139ae1af0bb6934ebe05c04

            SHA256

            1025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9

            SHA512

            62c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20

          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4wt2Fr8.exe

            Filesize

            339KB

            MD5

            14d9834611ad581afcfea061652ff6cb

            SHA1

            802f964d0be7858eb2f1e7c6fcda03501fd1b71c

            SHA256

            e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60

            SHA512

            cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5

          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4wt2Fr8.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

            MD5

            d41d8cd98f00b204e9800998ecf8427e

            SHA1

            da39a3ee5e6b4b0d3255bfef95601890afd80709

            SHA256

            e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

            SHA512

            cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

          • memory/2120-37-0x0000000074110000-0x00000000748C0000-memory.dmp

            Filesize

            7.7MB

          • memory/2120-38-0x0000000007420000-0x0000000007430000-memory.dmp

            Filesize

            64KB

          • memory/2120-45-0x00000000078D0000-0x000000000791C000-memory.dmp

            Filesize

            304KB

          • memory/2120-28-0x0000000074110000-0x00000000748C0000-memory.dmp

            Filesize

            7.7MB

          • memory/2120-30-0x0000000007990000-0x0000000007F34000-memory.dmp

            Filesize

            5.6MB

          • memory/2120-31-0x0000000007480000-0x0000000007512000-memory.dmp

            Filesize

            584KB

          • memory/2120-44-0x0000000007890000-0x00000000078CC000-memory.dmp

            Filesize

            240KB

          • memory/2120-43-0x0000000007830000-0x0000000007842000-memory.dmp

            Filesize

            72KB

          • memory/2120-42-0x0000000007F40000-0x000000000804A000-memory.dmp

            Filesize

            1.0MB

          • memory/2120-22-0x0000000000400000-0x000000000043C000-memory.dmp

            Filesize

            240KB

          • memory/2120-39-0x0000000007660000-0x000000000766A000-memory.dmp

            Filesize

            40KB

          • memory/2120-40-0x0000000007420000-0x0000000007430000-memory.dmp

            Filesize

            64KB

          • memory/2120-41-0x0000000008560000-0x0000000008B78000-memory.dmp

            Filesize

            6.1MB

          • memory/5044-14-0x0000000000400000-0x0000000000433000-memory.dmp

            Filesize

            204KB

          • memory/5044-15-0x0000000000400000-0x0000000000433000-memory.dmp

            Filesize

            204KB

          • memory/5044-16-0x0000000000400000-0x0000000000433000-memory.dmp

            Filesize

            204KB

          • memory/5044-18-0x0000000000400000-0x0000000000433000-memory.dmp

            Filesize

            204KB