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Analysis

  • max time kernel
    189s
  • max time network
    210s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/05/2023, 20:52

General

  • Target

    1f271567be6e1d3ef6edb068a3afb6f3de43076b906d28cb9466e55e400ab54f.exe

  • Size

    685KB

  • MD5

    a535488d1208eb430fef9fa3ccf1f6e8

  • SHA1

    ee7607dd58e4655c4a33eb1b1cf3eb31fd7a2fdf

  • SHA256

    1f271567be6e1d3ef6edb068a3afb6f3de43076b906d28cb9466e55e400ab54f

  • SHA512

    b6161d268bd6038dd2791b8c573dd2620e35ba42e6f0969e4e9c3266d648a3f1cfd73907691e4d1cc2c9798779bfe705ea998505573d4531d2d0caf315b6cbe0

  • SSDEEP

    12288:py902dT4IOxGBG+RVVlMFWyCSKVx5mKZbkNDWYmXZ5Sy8r/3A6Hyd7h:pybdEIOQdMoSy3mLWrXPSbwmWh

Malware Config

Signatures

  • Detects Redline Stealer samples 1 IoCs

    This rule detects the presence of Redline Stealer samples based on their unique strings.

  • Modifies Windows Defender Real-time Protection settings 3 TTPs 6 IoCs
  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • Executes dropped EXE 3 IoCs
  • Windows security modification 2 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1f271567be6e1d3ef6edb068a3afb6f3de43076b906d28cb9466e55e400ab54f.exe
    "C:\Users\Admin\AppData\Local\Temp\1f271567be6e1d3ef6edb068a3afb6f3de43076b906d28cb9466e55e400ab54f.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:4712
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\un880540.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\un880540.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:232
      • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\42094843.exe
        C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\42094843.exe
        3⤵
        • Modifies Windows Defender Real-time Protection settings
        • Executes dropped EXE
        • Windows security modification
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4980
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4980 -s 1020
          4⤵
          • Program crash
          PID:548
      • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\rk731241.exe
        C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\rk731241.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2716
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4980 -ip 4980
    1⤵
      PID:4808

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\un880540.exe

      Filesize

      531KB

      MD5

      dd47cee50a17e1022ee2398f113a6c22

      SHA1

      a4a5824780f2477257dc68b0dc5d43b1c148ca32

      SHA256

      b0632fed1accbb14070c0191fbbbcc36b0f981f61e403d5c38e9a6f8357c9dd9

      SHA512

      80be477a45cea718c99f16105a6d191bde25d56d03b50ba8887c7402b76298710fd696f46df6d0b66ca3c47ca991e74841b91712b8418ec492c5560275bef219

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\un880540.exe

      Filesize

      531KB

      MD5

      dd47cee50a17e1022ee2398f113a6c22

      SHA1

      a4a5824780f2477257dc68b0dc5d43b1c148ca32

      SHA256

      b0632fed1accbb14070c0191fbbbcc36b0f981f61e403d5c38e9a6f8357c9dd9

      SHA512

      80be477a45cea718c99f16105a6d191bde25d56d03b50ba8887c7402b76298710fd696f46df6d0b66ca3c47ca991e74841b91712b8418ec492c5560275bef219

    • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\42094843.exe

      Filesize

      249KB

      MD5

      68cf4b598154c0f8202208bfc69c983a

      SHA1

      7eb1b010ee6aabbc3f5c367e4844d29a9dad4c14

      SHA256

      f9f2d7be6fdff3a2989ec9a86e5ea0cb1d23afb298a4b14cd56d5ec94685f347

      SHA512

      b53da746cd4fecb856116c37869274d6c43993e34f218ec28b45b094f87017717925bc4f09bbadbf05d0c40a2918798a82b35ea255edfd71b671cfc579f83c30

    • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\42094843.exe

      Filesize

      249KB

      MD5

      68cf4b598154c0f8202208bfc69c983a

      SHA1

      7eb1b010ee6aabbc3f5c367e4844d29a9dad4c14

      SHA256

      f9f2d7be6fdff3a2989ec9a86e5ea0cb1d23afb298a4b14cd56d5ec94685f347

      SHA512

      b53da746cd4fecb856116c37869274d6c43993e34f218ec28b45b094f87017717925bc4f09bbadbf05d0c40a2918798a82b35ea255edfd71b671cfc579f83c30

    • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\rk731241.exe

      Filesize

      332KB

      MD5

      5b43d5c5f3670cbb7b9065cde42aa509

      SHA1

      31e574bfb5439d0f8f39407dda555b2c7e5c21e6

      SHA256

      01b97fe861bb19bcf3680a56a04f3b382d87d4d032bafc5f5d4e1e1b26e51679

      SHA512

      154a1880da5e3b667e30243ac0a4c73b35cbac526ab650140340119089194c187d7dd9133035c988599438db742c61ebc80cac4173d303fd5ec4b57ec14e4239

    • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\rk731241.exe

      Filesize

      332KB

      MD5

      5b43d5c5f3670cbb7b9065cde42aa509

      SHA1

      31e574bfb5439d0f8f39407dda555b2c7e5c21e6

      SHA256

      01b97fe861bb19bcf3680a56a04f3b382d87d4d032bafc5f5d4e1e1b26e51679

      SHA512

      154a1880da5e3b667e30243ac0a4c73b35cbac526ab650140340119089194c187d7dd9133035c988599438db742c61ebc80cac4173d303fd5ec4b57ec14e4239

    • memory/2716-215-0x0000000004E10000-0x0000000004E45000-memory.dmp

      Filesize

      212KB

    • memory/2716-245-0x0000000004E90000-0x0000000004EA0000-memory.dmp

      Filesize

      64KB

    • memory/2716-999-0x0000000004E90000-0x0000000004EA0000-memory.dmp

      Filesize

      64KB

    • memory/2716-998-0x0000000004E90000-0x0000000004EA0000-memory.dmp

      Filesize

      64KB

    • memory/2716-997-0x0000000004E90000-0x0000000004EA0000-memory.dmp

      Filesize

      64KB

    • memory/2716-996-0x0000000004E90000-0x0000000004EA0000-memory.dmp

      Filesize

      64KB

    • memory/2716-995-0x000000000A440000-0x000000000A47C000-memory.dmp

      Filesize

      240KB

    • memory/2716-993-0x0000000004E90000-0x0000000004EA0000-memory.dmp

      Filesize

      64KB

    • memory/2716-992-0x000000000A320000-0x000000000A42A000-memory.dmp

      Filesize

      1.0MB

    • memory/2716-991-0x000000000A300000-0x000000000A312000-memory.dmp

      Filesize

      72KB

    • memory/2716-990-0x0000000009C70000-0x000000000A288000-memory.dmp

      Filesize

      6.1MB

    • memory/2716-248-0x0000000004E90000-0x0000000004EA0000-memory.dmp

      Filesize

      64KB

    • memory/2716-246-0x0000000004E90000-0x0000000004EA0000-memory.dmp

      Filesize

      64KB

    • memory/2716-243-0x0000000002E00000-0x0000000002E46000-memory.dmp

      Filesize

      280KB

    • memory/2716-219-0x0000000004E10000-0x0000000004E45000-memory.dmp

      Filesize

      212KB

    • memory/2716-217-0x0000000004E10000-0x0000000004E45000-memory.dmp

      Filesize

      212KB

    • memory/2716-213-0x0000000004E10000-0x0000000004E45000-memory.dmp

      Filesize

      212KB

    • memory/2716-211-0x0000000004E10000-0x0000000004E45000-memory.dmp

      Filesize

      212KB

    • memory/2716-209-0x0000000004E10000-0x0000000004E45000-memory.dmp

      Filesize

      212KB

    • memory/2716-207-0x0000000004E10000-0x0000000004E45000-memory.dmp

      Filesize

      212KB

    • memory/2716-205-0x0000000004E10000-0x0000000004E45000-memory.dmp

      Filesize

      212KB

    • memory/2716-203-0x0000000004E10000-0x0000000004E45000-memory.dmp

      Filesize

      212KB

    • memory/2716-194-0x0000000004E10000-0x0000000004E45000-memory.dmp

      Filesize

      212KB

    • memory/2716-197-0x0000000004E10000-0x0000000004E45000-memory.dmp

      Filesize

      212KB

    • memory/2716-195-0x0000000004E10000-0x0000000004E45000-memory.dmp

      Filesize

      212KB

    • memory/2716-199-0x0000000004E10000-0x0000000004E45000-memory.dmp

      Filesize

      212KB

    • memory/2716-201-0x0000000004E10000-0x0000000004E45000-memory.dmp

      Filesize

      212KB

    • memory/4980-152-0x0000000007320000-0x0000000007330000-memory.dmp

      Filesize

      64KB

    • memory/4980-171-0x0000000007130000-0x0000000007143000-memory.dmp

      Filesize

      76KB

    • memory/4980-185-0x0000000000400000-0x0000000002B9A000-memory.dmp

      Filesize

      39.6MB

    • memory/4980-182-0x0000000000400000-0x0000000002B9A000-memory.dmp

      Filesize

      39.6MB

    • memory/4980-181-0x0000000007130000-0x0000000007143000-memory.dmp

      Filesize

      76KB

    • memory/4980-179-0x0000000007130000-0x0000000007143000-memory.dmp

      Filesize

      76KB

    • memory/4980-148-0x0000000002C30000-0x0000000002C5D000-memory.dmp

      Filesize

      180KB

    • memory/4980-177-0x0000000007130000-0x0000000007143000-memory.dmp

      Filesize

      76KB

    • memory/4980-175-0x0000000007130000-0x0000000007143000-memory.dmp

      Filesize

      76KB

    • memory/4980-169-0x0000000007130000-0x0000000007143000-memory.dmp

      Filesize

      76KB

    • memory/4980-151-0x0000000000400000-0x0000000002B9A000-memory.dmp

      Filesize

      39.6MB

    • memory/4980-149-0x0000000000400000-0x0000000002B9A000-memory.dmp

      Filesize

      39.6MB

    • memory/4980-173-0x0000000007130000-0x0000000007143000-memory.dmp

      Filesize

      76KB

    • memory/4980-167-0x0000000007130000-0x0000000007143000-memory.dmp

      Filesize

      76KB

    • memory/4980-165-0x0000000007130000-0x0000000007143000-memory.dmp

      Filesize

      76KB

    • memory/4980-163-0x0000000007130000-0x0000000007143000-memory.dmp

      Filesize

      76KB

    • memory/4980-161-0x0000000007130000-0x0000000007143000-memory.dmp

      Filesize

      76KB

    • memory/4980-159-0x0000000007130000-0x0000000007143000-memory.dmp

      Filesize

      76KB

    • memory/4980-157-0x0000000007130000-0x0000000007143000-memory.dmp

      Filesize

      76KB

    • memory/4980-155-0x0000000007130000-0x0000000007143000-memory.dmp

      Filesize

      76KB

    • memory/4980-154-0x0000000007130000-0x0000000007143000-memory.dmp

      Filesize

      76KB

    • memory/4980-153-0x0000000007330000-0x00000000078D4000-memory.dmp

      Filesize

      5.6MB