Analysis

  • max time kernel
    144s
  • max time network
    161s
  • 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.f51fb02c3f6700e7ebfd52cfa9ef546230907387f4e3d80d33d6fd0d28b6ffe5.exe

  • Size

    511KB

  • MD5

    961aac55809ef3ecc4d8ae74883e1040

  • SHA1

    cebbd76ed04fc3d73e2f32181f1eff9482edb65e

  • SHA256

    f51fb02c3f6700e7ebfd52cfa9ef546230907387f4e3d80d33d6fd0d28b6ffe5

  • SHA512

    51536fa15facfe9ececb007245e6f5559a806538a8f9cddc1bc5e05754c5738d6cc9ef11d4726be5dd84d4f43fc865f564c0204cba793079a945d3f31fddd0f4

  • SSDEEP

    12288:RMrxy90yiuIHGoXY8TUs2buE+4+wSRKFHtr0WtNV/cmFO:QyrilmoXYSz2burUSgJt0439O

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 2 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.f51fb02c3f6700e7ebfd52cfa9ef546230907387f4e3d80d33d6fd0d28b6ffe5.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.f51fb02c3f6700e7ebfd52cfa9ef546230907387f4e3d80d33d6fd0d28b6ffe5.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:4196
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Cf6RW16.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Cf6RW16.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1440
      • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3Qp526sL.exe
        C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3Qp526sL.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4524
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:4496
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4496 -s 540
            5⤵
            • Program crash
            PID:2548
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4496 -s 540
            5⤵
            • Program crash
            PID:3900
      • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4Ie8nj9.exe
        C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4Ie8nj9.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2388
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
          4⤵
            PID:4488
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
            4⤵
              PID:1004
        • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5xu40ts.exe
          C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5xu40ts.exe
          2⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:3608
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\is64.bat" "
            3⤵
              PID:408
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4496 -ip 4496
          1⤵
            PID:3788

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5xu40ts.exe

            Filesize

            73KB

            MD5

            cee786a25fd6f61ce321972831c42632

            SHA1

            6252d3daa95eac5ae87937d4fc1001ba9f1e56ac

            SHA256

            5b4aad12b72037d3ff8aa7020ef8410823d75f0fe1ab6ac282cd7667cbbff6e3

            SHA512

            970433ba0aabbc2a938556abfef375b9b18d71b8cf33e639d70a0c10060c06657fa148dbff8beb8eb0e05525617484b7194500f4f213a9c2eaf20256fd4b67af

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5xu40ts.exe

            Filesize

            73KB

            MD5

            cee786a25fd6f61ce321972831c42632

            SHA1

            6252d3daa95eac5ae87937d4fc1001ba9f1e56ac

            SHA256

            5b4aad12b72037d3ff8aa7020ef8410823d75f0fe1ab6ac282cd7667cbbff6e3

            SHA512

            970433ba0aabbc2a938556abfef375b9b18d71b8cf33e639d70a0c10060c06657fa148dbff8beb8eb0e05525617484b7194500f4f213a9c2eaf20256fd4b67af

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Cf6RW16.exe

            Filesize

            389KB

            MD5

            0e5b290557b9cd41652e551aedeaac2b

            SHA1

            1279fc4d53a71abf57cfcf27750df6f2b94c7630

            SHA256

            9fef4d1eb390aab46b08f3670318f1af87e58bf943219963b10130be5096a891

            SHA512

            686cbb9261cfdf0a2d55e4b8593c02ea7dd0adc9d4257203dd4ef62ef931c647df6ebd60c07163dbaccd0645ae1b99e00be408a476bcb41a8dc31a6671e10bdb

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Cf6RW16.exe

            Filesize

            389KB

            MD5

            0e5b290557b9cd41652e551aedeaac2b

            SHA1

            1279fc4d53a71abf57cfcf27750df6f2b94c7630

            SHA256

            9fef4d1eb390aab46b08f3670318f1af87e58bf943219963b10130be5096a891

            SHA512

            686cbb9261cfdf0a2d55e4b8593c02ea7dd0adc9d4257203dd4ef62ef931c647df6ebd60c07163dbaccd0645ae1b99e00be408a476bcb41a8dc31a6671e10bdb

          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3Qp526sL.exe

            Filesize

            300KB

            MD5

            784667bb96ccb30c4cf44f2c5f493769

            SHA1

            28185165ab4dbbb4a139ae1af0bb6934ebe05c04

            SHA256

            1025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9

            SHA512

            62c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20

          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3Qp526sL.exe

            Filesize

            300KB

            MD5

            784667bb96ccb30c4cf44f2c5f493769

            SHA1

            28185165ab4dbbb4a139ae1af0bb6934ebe05c04

            SHA256

            1025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9

            SHA512

            62c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20

          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4Ie8nj9.exe

            Filesize

            339KB

            MD5

            14d9834611ad581afcfea061652ff6cb

            SHA1

            802f964d0be7858eb2f1e7c6fcda03501fd1b71c

            SHA256

            e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60

            SHA512

            cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5

          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4Ie8nj9.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/1004-37-0x0000000007360000-0x0000000007370000-memory.dmp

            Filesize

            64KB

          • memory/1004-38-0x0000000073740000-0x0000000073EF0000-memory.dmp

            Filesize

            7.7MB

          • memory/1004-45-0x0000000007820000-0x000000000786C000-memory.dmp

            Filesize

            304KB

          • memory/1004-28-0x0000000073740000-0x0000000073EF0000-memory.dmp

            Filesize

            7.7MB

          • memory/1004-30-0x00000000078F0000-0x0000000007E94000-memory.dmp

            Filesize

            5.6MB

          • memory/1004-31-0x00000000073E0000-0x0000000007472000-memory.dmp

            Filesize

            584KB

          • memory/1004-44-0x00000000077E0000-0x000000000781C000-memory.dmp

            Filesize

            240KB

          • memory/1004-43-0x0000000007780000-0x0000000007792000-memory.dmp

            Filesize

            72KB

          • memory/1004-42-0x0000000007EA0000-0x0000000007FAA000-memory.dmp

            Filesize

            1.0MB

          • memory/1004-22-0x0000000000400000-0x000000000043C000-memory.dmp

            Filesize

            240KB

          • memory/1004-39-0x00000000073D0000-0x00000000073DA000-memory.dmp

            Filesize

            40KB

          • memory/1004-40-0x0000000007360000-0x0000000007370000-memory.dmp

            Filesize

            64KB

          • memory/1004-41-0x00000000084C0000-0x0000000008AD8000-memory.dmp

            Filesize

            6.1MB

          • memory/4496-14-0x0000000000400000-0x0000000000433000-memory.dmp

            Filesize

            204KB

          • memory/4496-16-0x0000000000400000-0x0000000000433000-memory.dmp

            Filesize

            204KB

          • memory/4496-15-0x0000000000400000-0x0000000000433000-memory.dmp

            Filesize

            204KB

          • memory/4496-18-0x0000000000400000-0x0000000000433000-memory.dmp

            Filesize

            204KB