Resubmissions

20-09-2023 14:30

230920-rt5nzagg9v 10

Analysis

  • max time kernel
    146s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-09-2023 14:30

General

  • Target

    55aa5e.exe

  • Size

    6.9MB

  • MD5

    56c197e493f74f9233a16cdefab3109f

  • SHA1

    af35bd2fd5d884bdf6bea8aac695e98f5a00715a

  • SHA256

    172cb28c1c7948ece5287c566e9a684c56e64d85574d1636d5204e168771ce01

  • SHA512

    d2830cfebfaa859f5fca15e3c81799e99c3cb31f72b1075d8828f03a490bfe6196b34d35bbcaede32a6d63d5c2d9bc17bea009e1bd8787cb4397f6627328b086

  • SSDEEP

    98304:ULop5mhzd71cBjG9Azp56BV8cM0AnwGSOnTXsYGeCW1zbiG54WeOVEMMRHGV7E:0op5mqU9KE8nNZnTXaexbZWsMGV7E

Malware Config

Extracted

Family

amadey

Version

3.89

C2

http://5.42.64.33/vu3skClDn/index.php

Attributes
  • install_dir

    a304d35d74

  • install_file

    yiueea.exe

  • strings_key

    3ae6c4e6339065c6f5a368011bb5cb8c

rc4.plain

Signatures

  • Amadey

    Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

  • RedLine

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

  • RedLine payload 1 IoCs
  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • VMProtect packed file 9 IoCs

    Detects executables packed with VMProtect commercial packer.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\55aa5e.exe
    "C:\Users\Admin\AppData\Local\Temp\55aa5e.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4680
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN 55aa5e.exe /TR "C:\Users\Admin\AppData\Local\Temp\55aa5e.exe" /F
      2⤵
      • Creates scheduled task(s)
      PID:1996
    • C:\Users\Admin\AppData\Local\Temp\1000066001\BestSoftware.exe
      "C:\Users\Admin\AppData\Local\Temp\1000066001\BestSoftware.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4168
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        3⤵
          PID:5044
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4860
      • C:\Users\Admin\AppData\Local\Temp\1000068001\BestSoftware.exe
        "C:\Users\Admin\AppData\Local\Temp\1000068001\BestSoftware.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4500
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3764
    • C:\Users\Admin\AppData\Local\Temp\55aa5e.exe
      C:\Users\Admin\AppData\Local\Temp\55aa5e.exe
      1⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:3552
    • C:\Users\Admin\AppData\Local\Temp\55aa5e.exe
      C:\Users\Admin\AppData\Local\Temp\55aa5e.exe
      1⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:4576

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\BestSoftware.exe.log

      Filesize

      522B

      MD5

      8334a471a4b492ece225b471b8ad2fc8

      SHA1

      1cb24640f32d23e8f7800bd0511b7b9c3011d992

      SHA256

      5612afe347d8549cc95a0c710602bcc7d7b224361b613c0a6ba362092300c169

      SHA512

      56ae2e83355c331b00d782797f5664c2f373eac240e811aab978732503ae05eb20b08730d2427ed90efa5a706d71b42b57153596a45a6b5592e3dd9128b81c36

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RegSvcs.exe.log

      Filesize

      2KB

      MD5

      c671d50d589ce7be9ad3ff4035e6ad63

      SHA1

      88cdc154077c8264149cb8b19e16ba07901e1dd6

      SHA256

      fb07948cb75ee2b9967b1a6386eb53a46573ae99c9ecb46f2b377af8df1b7568

      SHA512

      a40a7500a7896f2200754499c00e74a7b8a53578808d5408e1e31733d03cdeb2b3e520c1d9b71537f2877093b686811b8e20cbb5c8061e4d3e1d75a161cebae9

    • C:\Users\Admin\AppData\Local\Temp\1000002051\BRR.exe

      Filesize

      708B

      MD5

      2382378378c002d88b9a507c712c3349

      SHA1

      2e894db3808b554abadc8b144338ad9e2ea937ba

      SHA256

      37a4e56c497e170de6e152bc479624eb8d7ccb35bad5a190f2fdb17ac699cffa

      SHA512

      2120f9ae9e5d63ee9aa5aa25e24081662059bdeb01afd8b21ddb8bdfff22832ea0c1dec51dbcbf714e1e82537d624f0ddf0b862ff218b9d2a38941fbe63c3258

    • C:\Users\Admin\AppData\Local\Temp\1000066001\BestSoftware.exe

      Filesize

      1.4MB

      MD5

      1c9cb19f72b337353fab5826b145b2f3

      SHA1

      2fe6ddb2fb7fc0082388904ffddb5902c520179b

      SHA256

      f217f02bbbf1b37386d8611b2ef07dd562d33dc1b31d84a260e11decf082b66a

      SHA512

      90a14e5be34e1f6b23c1ccbfb80b5f29d1ce6e1d58573de82abeb14b5a00f2bfbda4fc0d45058d6a5362274c08b0d280a4d280097f72ba3eb9b59db46acaf1bc

    • C:\Users\Admin\AppData\Local\Temp\1000066001\BestSoftware.exe

      Filesize

      1.4MB

      MD5

      1c9cb19f72b337353fab5826b145b2f3

      SHA1

      2fe6ddb2fb7fc0082388904ffddb5902c520179b

      SHA256

      f217f02bbbf1b37386d8611b2ef07dd562d33dc1b31d84a260e11decf082b66a

      SHA512

      90a14e5be34e1f6b23c1ccbfb80b5f29d1ce6e1d58573de82abeb14b5a00f2bfbda4fc0d45058d6a5362274c08b0d280a4d280097f72ba3eb9b59db46acaf1bc

    • C:\Users\Admin\AppData\Local\Temp\1000066001\BestSoftware.exe

      Filesize

      1.4MB

      MD5

      1c9cb19f72b337353fab5826b145b2f3

      SHA1

      2fe6ddb2fb7fc0082388904ffddb5902c520179b

      SHA256

      f217f02bbbf1b37386d8611b2ef07dd562d33dc1b31d84a260e11decf082b66a

      SHA512

      90a14e5be34e1f6b23c1ccbfb80b5f29d1ce6e1d58573de82abeb14b5a00f2bfbda4fc0d45058d6a5362274c08b0d280a4d280097f72ba3eb9b59db46acaf1bc

    • C:\Users\Admin\AppData\Local\Temp\1000068001\BestSoftware.exe

      Filesize

      1.4MB

      MD5

      1c9cb19f72b337353fab5826b145b2f3

      SHA1

      2fe6ddb2fb7fc0082388904ffddb5902c520179b

      SHA256

      f217f02bbbf1b37386d8611b2ef07dd562d33dc1b31d84a260e11decf082b66a

      SHA512

      90a14e5be34e1f6b23c1ccbfb80b5f29d1ce6e1d58573de82abeb14b5a00f2bfbda4fc0d45058d6a5362274c08b0d280a4d280097f72ba3eb9b59db46acaf1bc

    • C:\Users\Admin\AppData\Local\Temp\1000068001\BestSoftware.exe

      Filesize

      1.4MB

      MD5

      1c9cb19f72b337353fab5826b145b2f3

      SHA1

      2fe6ddb2fb7fc0082388904ffddb5902c520179b

      SHA256

      f217f02bbbf1b37386d8611b2ef07dd562d33dc1b31d84a260e11decf082b66a

      SHA512

      90a14e5be34e1f6b23c1ccbfb80b5f29d1ce6e1d58573de82abeb14b5a00f2bfbda4fc0d45058d6a5362274c08b0d280a4d280097f72ba3eb9b59db46acaf1bc

    • C:\Users\Admin\AppData\Local\Temp\1000069051\11bestcrypt.exe

      Filesize

      1KB

      MD5

      bf00c8de950425eb991277d0f6521954

      SHA1

      b905849dac07a1893e14ce75b23d6e9170b4f972

      SHA256

      a93b38ed77ad75dc0119f8787cbcc699cd17192b1bb06209460be92d156ffff4

      SHA512

      dceb513f914cbd501c7ed94f623d3f6d9eb84f72bc1b8cd69ae141ead383dd04f0671a97a54002b7b4f2d55acb1f1c2b01f4b54511650f6ff8cca8322f31ce29

    • memory/3552-36-0x0000000000050000-0x0000000000AC0000-memory.dmp

      Filesize

      10.4MB

    • memory/3552-37-0x0000000000050000-0x0000000000AC0000-memory.dmp

      Filesize

      10.4MB

    • memory/3552-40-0x0000000000050000-0x0000000000AC0000-memory.dmp

      Filesize

      10.4MB

    • memory/3552-35-0x0000000001020000-0x0000000001021000-memory.dmp

      Filesize

      4KB

    • memory/3764-138-0x0000000005670000-0x0000000005680000-memory.dmp

      Filesize

      64KB

    • memory/3764-137-0x0000000072A20000-0x00000000731D0000-memory.dmp

      Filesize

      7.7MB

    • memory/3764-139-0x0000000072A20000-0x00000000731D0000-memory.dmp

      Filesize

      7.7MB

    • memory/4168-42-0x0000000004BC0000-0x0000000004CA6000-memory.dmp

      Filesize

      920KB

    • memory/4168-33-0x0000000004AD0000-0x0000000004B6C000-memory.dmp

      Filesize

      624KB

    • memory/4168-43-0x0000000004B80000-0x0000000004B9C000-memory.dmp

      Filesize

      112KB

    • memory/4168-44-0x0000000004B80000-0x0000000004B95000-memory.dmp

      Filesize

      84KB

    • memory/4168-45-0x0000000004B80000-0x0000000004B95000-memory.dmp

      Filesize

      84KB

    • memory/4168-47-0x0000000004B80000-0x0000000004B95000-memory.dmp

      Filesize

      84KB

    • memory/4168-49-0x0000000004B80000-0x0000000004B95000-memory.dmp

      Filesize

      84KB

    • memory/4168-51-0x0000000004B80000-0x0000000004B95000-memory.dmp

      Filesize

      84KB

    • memory/4168-53-0x0000000004B80000-0x0000000004B95000-memory.dmp

      Filesize

      84KB

    • memory/4168-55-0x0000000004B80000-0x0000000004B95000-memory.dmp

      Filesize

      84KB

    • memory/4168-57-0x0000000004B80000-0x0000000004B95000-memory.dmp

      Filesize

      84KB

    • memory/4168-59-0x0000000004B80000-0x0000000004B95000-memory.dmp

      Filesize

      84KB

    • memory/4168-61-0x0000000004B80000-0x0000000004B95000-memory.dmp

      Filesize

      84KB

    • memory/4168-63-0x0000000004B80000-0x0000000004B95000-memory.dmp

      Filesize

      84KB

    • memory/4168-65-0x0000000004B80000-0x0000000004B95000-memory.dmp

      Filesize

      84KB

    • memory/4168-67-0x0000000004B80000-0x0000000004B95000-memory.dmp

      Filesize

      84KB

    • memory/4168-68-0x0000000004CD0000-0x0000000004CD1000-memory.dmp

      Filesize

      4KB

    • memory/4168-31-0x0000000072A20000-0x00000000731D0000-memory.dmp

      Filesize

      7.7MB

    • memory/4168-32-0x0000000000120000-0x000000000027A000-memory.dmp

      Filesize

      1.4MB

    • memory/4168-71-0x0000000072A20000-0x00000000731D0000-memory.dmp

      Filesize

      7.7MB

    • memory/4168-34-0x0000000072A20000-0x00000000731D0000-memory.dmp

      Filesize

      7.7MB

    • memory/4168-41-0x0000000004BB0000-0x0000000004BC0000-memory.dmp

      Filesize

      64KB

    • memory/4500-136-0x0000000072A20000-0x00000000731D0000-memory.dmp

      Filesize

      7.7MB

    • memory/4500-106-0x0000000072A20000-0x00000000731D0000-memory.dmp

      Filesize

      7.7MB

    • memory/4500-107-0x0000000072A20000-0x00000000731D0000-memory.dmp

      Filesize

      7.7MB

    • memory/4500-108-0x0000000004E30000-0x0000000004E40000-memory.dmp

      Filesize

      64KB

    • memory/4500-133-0x0000000004F70000-0x0000000004F71000-memory.dmp

      Filesize

      4KB

    • memory/4576-141-0x0000000000050000-0x0000000000AC0000-memory.dmp

      Filesize

      10.4MB

    • memory/4576-140-0x00000000014B0000-0x00000000014B1000-memory.dmp

      Filesize

      4KB

    • memory/4576-142-0x0000000000050000-0x0000000000AC0000-memory.dmp

      Filesize

      10.4MB

    • memory/4576-145-0x0000000000050000-0x0000000000AC0000-memory.dmp

      Filesize

      10.4MB

    • memory/4680-2-0x0000000000050000-0x0000000000AC0000-memory.dmp

      Filesize

      10.4MB

    • memory/4680-14-0x0000000000050000-0x0000000000AC0000-memory.dmp

      Filesize

      10.4MB

    • memory/4680-1-0x0000000000050000-0x0000000000AC0000-memory.dmp

      Filesize

      10.4MB

    • memory/4680-0-0x0000000002C10000-0x0000000002C11000-memory.dmp

      Filesize

      4KB

    • memory/4860-73-0x00000000077A0000-0x0000000007D44000-memory.dmp

      Filesize

      5.6MB

    • memory/4860-83-0x0000000008E10000-0x0000000008E86000-memory.dmp

      Filesize

      472KB

    • memory/4860-74-0x00000000072E0000-0x0000000007372000-memory.dmp

      Filesize

      584KB

    • memory/4860-88-0x0000000072A20000-0x00000000731D0000-memory.dmp

      Filesize

      7.7MB

    • memory/4860-86-0x0000000008F30000-0x0000000008F4E000-memory.dmp

      Filesize

      120KB

    • memory/4860-85-0x0000000009760000-0x0000000009C8C000-memory.dmp

      Filesize

      5.2MB

    • memory/4860-84-0x0000000009060000-0x0000000009222000-memory.dmp

      Filesize

      1.8MB

    • memory/4860-72-0x0000000072A20000-0x00000000731D0000-memory.dmp

      Filesize

      7.7MB

    • memory/4860-69-0x0000000000400000-0x000000000045A000-memory.dmp

      Filesize

      360KB

    • memory/4860-75-0x0000000007560000-0x0000000007570000-memory.dmp

      Filesize

      64KB

    • memory/4860-82-0x0000000007ED0000-0x0000000007F36000-memory.dmp

      Filesize

      408KB

    • memory/4860-81-0x0000000007610000-0x000000000765C000-memory.dmp

      Filesize

      304KB

    • memory/4860-80-0x00000000075D0000-0x000000000760C000-memory.dmp

      Filesize

      240KB

    • memory/4860-79-0x0000000007D50000-0x0000000007E5A000-memory.dmp

      Filesize

      1.0MB

    • memory/4860-78-0x0000000007570000-0x0000000007582000-memory.dmp

      Filesize

      72KB

    • memory/4860-77-0x0000000008370000-0x0000000008988000-memory.dmp

      Filesize

      6.1MB

    • memory/4860-76-0x00000000073A0000-0x00000000073AA000-memory.dmp

      Filesize

      40KB