Analysis

  • max time kernel
    139s
  • max time network
    157s
  • 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.8d94ba95d8c9e0a0bc87dd60e08f483b53dc533e1ce17d070e962dbc67f8bfa8.exe

  • Size

    511KB

  • MD5

    03db981f23f561a46d67fcfbd6809620

  • SHA1

    75d605263d8c15aa0c0b2a2c06ce8059a9b2dc88

  • SHA256

    8d94ba95d8c9e0a0bc87dd60e08f483b53dc533e1ce17d070e962dbc67f8bfa8

  • SHA512

    458873e2b5deb3b157cb19faa2f84bc5b67552c9a14a80814d8cca3c0da85083beed2a364a8a82dcefbb72d054f3b39d9bab3c39bdf2c6cc876492283f6fed8c

  • SSDEEP

    12288:zMr3y90IWgreWGl11wd2aY8TUs2Lu0+4+wSRIFQ7OE:YyhFYl1NaYSz2LubUSa0OE

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.8d94ba95d8c9e0a0bc87dd60e08f483b53dc533e1ce17d070e962dbc67f8bfa8.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.8d94ba95d8c9e0a0bc87dd60e08f483b53dc533e1ce17d070e962dbc67f8bfa8.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2952
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\iC1Jv70.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\iC1Jv70.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:2412
      • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1dM00fx3.exe
        C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1dM00fx3.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4080
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
          4⤵
            PID:4576
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 4576 -s 540
              5⤵
              • Program crash
              PID:408
        • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2FN4658.exe
          C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2FN4658.exe
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:4564
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
            4⤵
              PID:3688
        • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7SZ1xh74.exe
          C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7SZ1xh74.exe
          2⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:936
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\is64.bat" "
            3⤵
              PID:324
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4576 -ip 4576
          1⤵
            PID:556

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7SZ1xh74.exe

            Filesize

            73KB

            MD5

            cf92e56980c6d6a4d2c1c9017889013a

            SHA1

            9fe9eafc3b0db1c96f74f2b191a98189bdddd34c

            SHA256

            d76a65d4b0d5d405808371c1c9a52383dea0f3bac1c367375604dc79cca61aa3

            SHA512

            c53119ca34e02f1967f6e9425a8d9866f6d09bc47fe5e460cb69eb31d9c46cb03800b013c7f742c453728d697464570869b3ad9a8689ffe3578c8fe2451f75e5

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7SZ1xh74.exe

            Filesize

            73KB

            MD5

            cf92e56980c6d6a4d2c1c9017889013a

            SHA1

            9fe9eafc3b0db1c96f74f2b191a98189bdddd34c

            SHA256

            d76a65d4b0d5d405808371c1c9a52383dea0f3bac1c367375604dc79cca61aa3

            SHA512

            c53119ca34e02f1967f6e9425a8d9866f6d09bc47fe5e460cb69eb31d9c46cb03800b013c7f742c453728d697464570869b3ad9a8689ffe3578c8fe2451f75e5

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\iC1Jv70.exe

            Filesize

            389KB

            MD5

            686ad7af362fcfcdff2d6379f6e56b3f

            SHA1

            73478289ec63042693963b7918e24bc571888488

            SHA256

            ad36b0731e4ab28fd47c6f64b28df115a75cd2a146e094c46729b2bf801461fb

            SHA512

            0261ed05694d1d6fd8419f7b15fd81bc6b61338e8235c7060811e67f9d71d50ada5ceba8a5c0b13bf4ee16ccaefded44b1e0e5e8e2573c2c4f0b8c0bf0bbe521

          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\iC1Jv70.exe

            Filesize

            389KB

            MD5

            686ad7af362fcfcdff2d6379f6e56b3f

            SHA1

            73478289ec63042693963b7918e24bc571888488

            SHA256

            ad36b0731e4ab28fd47c6f64b28df115a75cd2a146e094c46729b2bf801461fb

            SHA512

            0261ed05694d1d6fd8419f7b15fd81bc6b61338e8235c7060811e67f9d71d50ada5ceba8a5c0b13bf4ee16ccaefded44b1e0e5e8e2573c2c4f0b8c0bf0bbe521

          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1dM00fx3.exe

            Filesize

            300KB

            MD5

            784667bb96ccb30c4cf44f2c5f493769

            SHA1

            28185165ab4dbbb4a139ae1af0bb6934ebe05c04

            SHA256

            1025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9

            SHA512

            62c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20

          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1dM00fx3.exe

            Filesize

            300KB

            MD5

            784667bb96ccb30c4cf44f2c5f493769

            SHA1

            28185165ab4dbbb4a139ae1af0bb6934ebe05c04

            SHA256

            1025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9

            SHA512

            62c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20

          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2FN4658.exe

            Filesize

            339KB

            MD5

            14d9834611ad581afcfea061652ff6cb

            SHA1

            802f964d0be7858eb2f1e7c6fcda03501fd1b71c

            SHA256

            e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60

            SHA512

            cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5

          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2FN4658.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/3688-41-0x0000000007CE0000-0x0000000007CF2000-memory.dmp

            Filesize

            72KB

          • memory/3688-29-0x0000000007ED0000-0x0000000008474000-memory.dmp

            Filesize

            5.6MB

          • memory/3688-45-0x0000000007BE0000-0x0000000007BF0000-memory.dmp

            Filesize

            64KB

          • memory/3688-28-0x0000000073960000-0x0000000074110000-memory.dmp

            Filesize

            7.7MB

          • memory/3688-38-0x0000000007AF0000-0x0000000007AFA000-memory.dmp

            Filesize

            40KB

          • memory/3688-31-0x0000000007A00000-0x0000000007A92000-memory.dmp

            Filesize

            584KB

          • memory/3688-33-0x0000000007BE0000-0x0000000007BF0000-memory.dmp

            Filesize

            64KB

          • memory/3688-39-0x0000000008AA0000-0x00000000090B8000-memory.dmp

            Filesize

            6.1MB

          • memory/3688-44-0x0000000073960000-0x0000000074110000-memory.dmp

            Filesize

            7.7MB

          • memory/3688-43-0x0000000007D80000-0x0000000007DCC000-memory.dmp

            Filesize

            304KB

          • memory/3688-42-0x0000000007D40000-0x0000000007D7C000-memory.dmp

            Filesize

            240KB

          • memory/3688-40-0x0000000008480000-0x000000000858A000-memory.dmp

            Filesize

            1.0MB

          • memory/3688-22-0x0000000000400000-0x000000000043C000-memory.dmp

            Filesize

            240KB

          • memory/4576-15-0x0000000000400000-0x0000000000433000-memory.dmp

            Filesize

            204KB

          • memory/4576-18-0x0000000000400000-0x0000000000433000-memory.dmp

            Filesize

            204KB

          • memory/4576-16-0x0000000000400000-0x0000000000433000-memory.dmp

            Filesize

            204KB

          • memory/4576-14-0x0000000000400000-0x0000000000433000-memory.dmp

            Filesize

            204KB