Analysis

  • max time kernel
    151s
  • max time network
    173s
  • 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 02:22

General

  • Target

    b3303b37e83fd0e8dd858de00d4940b9a599c207ddc9ed92eb6bb93b5c1ea0ee.exe

  • Size

    511KB

  • MD5

    cfb62df3f786093ef1342d46efac7003

  • SHA1

    681ef79a16112a8fd696eb11530d00993b130d0b

  • SHA256

    b3303b37e83fd0e8dd858de00d4940b9a599c207ddc9ed92eb6bb93b5c1ea0ee

  • SHA512

    9899d440584cd8134e63402b0aafc976d0c54c4ab420b60751f9121e2b054b5733c4cf552e2c878fb5005279270e9859b8cae0512f1c6995ace9fa30b68ad94a

  • SSDEEP

    12288:YMrby90IJIEcPiSDkyJlOwcWMiUUY8TUs2euF+4+wSRWFAjor9h3xO:zycPVAnWxPYSz2eu4USMh3xO

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 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b3303b37e83fd0e8dd858de00d4940b9a599c207ddc9ed92eb6bb93b5c1ea0ee.exe
    "C:\Users\Admin\AppData\Local\Temp\b3303b37e83fd0e8dd858de00d4940b9a599c207ddc9ed92eb6bb93b5c1ea0ee.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:5000
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dL3Iy09.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dL3Iy09.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:4748
      • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Hw74ST0.exe
        C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Hw74ST0.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1284
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
          4⤵
            PID:4668
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 4668 -s 548
              5⤵
              • Program crash
              PID:3856
        • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2Cz3229.exe
          C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2Cz3229.exe
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:2696
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
            4⤵
              PID:3492
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
              4⤵
                PID:3040
          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7rL1VM93.exe
            C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7rL1VM93.exe
            2⤵
            • Checks computer location settings
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4640
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\is64.bat" "
              3⤵
                PID:2328
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4668 -ip 4668
            1⤵
              PID:4692

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7rL1VM93.exe

              Filesize

              73KB

              MD5

              3c0a0848be7eb6d3d733ab5db1571b89

              SHA1

              bcd5c7fe5e8f1358fa20cb21ca95772349e1590b

              SHA256

              a4b763b5a3deb4aa27219c7ffcb153a75d27f091198c30f2c9c3761e840a1544

              SHA512

              4e475a35586f1bceaeccd9b4e8d08c90f2c22dd8f7852485c9782f01dd2f194e0f0a0bb8bf89cc63b730d658cab20b20d65d5ede319189d55024d30b5f287ddb

            • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7rL1VM93.exe

              Filesize

              73KB

              MD5

              3c0a0848be7eb6d3d733ab5db1571b89

              SHA1

              bcd5c7fe5e8f1358fa20cb21ca95772349e1590b

              SHA256

              a4b763b5a3deb4aa27219c7ffcb153a75d27f091198c30f2c9c3761e840a1544

              SHA512

              4e475a35586f1bceaeccd9b4e8d08c90f2c22dd8f7852485c9782f01dd2f194e0f0a0bb8bf89cc63b730d658cab20b20d65d5ede319189d55024d30b5f287ddb

            • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dL3Iy09.exe

              Filesize

              389KB

              MD5

              077958a8897d5cc23614e7c89568e33f

              SHA1

              439aad4fc88662e8c3af218fec5c72b092edb2db

              SHA256

              b135c8e46945d428ebecde8e35494b93bbda5ffd08bff30023dd8401ed7e4f7c

              SHA512

              f4686b3d7ea58aa3b3e1b4ae126040e3d5b081aeac390a9258cf3b53642e42c3405c05586c4c2cadb03af09c19a830ec02a7cb30f20f66a85a4ba8a710bc5bf6

            • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dL3Iy09.exe

              Filesize

              389KB

              MD5

              077958a8897d5cc23614e7c89568e33f

              SHA1

              439aad4fc88662e8c3af218fec5c72b092edb2db

              SHA256

              b135c8e46945d428ebecde8e35494b93bbda5ffd08bff30023dd8401ed7e4f7c

              SHA512

              f4686b3d7ea58aa3b3e1b4ae126040e3d5b081aeac390a9258cf3b53642e42c3405c05586c4c2cadb03af09c19a830ec02a7cb30f20f66a85a4ba8a710bc5bf6

            • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Hw74ST0.exe

              Filesize

              300KB

              MD5

              784667bb96ccb30c4cf44f2c5f493769

              SHA1

              28185165ab4dbbb4a139ae1af0bb6934ebe05c04

              SHA256

              1025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9

              SHA512

              62c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20

            • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Hw74ST0.exe

              Filesize

              300KB

              MD5

              784667bb96ccb30c4cf44f2c5f493769

              SHA1

              28185165ab4dbbb4a139ae1af0bb6934ebe05c04

              SHA256

              1025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9

              SHA512

              62c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20

            • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2Cz3229.exe

              Filesize

              339KB

              MD5

              14d9834611ad581afcfea061652ff6cb

              SHA1

              802f964d0be7858eb2f1e7c6fcda03501fd1b71c

              SHA256

              e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60

              SHA512

              cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5

            • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2Cz3229.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/3040-41-0x0000000007B20000-0x0000000007B32000-memory.dmp

              Filesize

              72KB

            • memory/3040-29-0x0000000007D30000-0x00000000082D4000-memory.dmp

              Filesize

              5.6MB

            • memory/3040-45-0x0000000007A40000-0x0000000007A50000-memory.dmp

              Filesize

              64KB

            • memory/3040-28-0x0000000074260000-0x0000000074A10000-memory.dmp

              Filesize

              7.7MB

            • memory/3040-38-0x0000000007A50000-0x0000000007A5A000-memory.dmp

              Filesize

              40KB

            • memory/3040-31-0x0000000007880000-0x0000000007912000-memory.dmp

              Filesize

              584KB

            • memory/3040-33-0x0000000007A40000-0x0000000007A50000-memory.dmp

              Filesize

              64KB

            • memory/3040-39-0x0000000008900000-0x0000000008F18000-memory.dmp

              Filesize

              6.1MB

            • memory/3040-44-0x0000000074260000-0x0000000074A10000-memory.dmp

              Filesize

              7.7MB

            • memory/3040-43-0x00000000082E0000-0x000000000832C000-memory.dmp

              Filesize

              304KB

            • memory/3040-42-0x0000000007B80000-0x0000000007BBC000-memory.dmp

              Filesize

              240KB

            • memory/3040-40-0x0000000007BF0000-0x0000000007CFA000-memory.dmp

              Filesize

              1.0MB

            • memory/3040-22-0x0000000000400000-0x000000000043C000-memory.dmp

              Filesize

              240KB

            • memory/4668-15-0x0000000000400000-0x0000000000433000-memory.dmp

              Filesize

              204KB

            • memory/4668-18-0x0000000000400000-0x0000000000433000-memory.dmp

              Filesize

              204KB

            • memory/4668-16-0x0000000000400000-0x0000000000433000-memory.dmp

              Filesize

              204KB

            • memory/4668-14-0x0000000000400000-0x0000000000433000-memory.dmp

              Filesize

              204KB