Analysis

  • max time kernel
    141s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    12/01/2024, 02:37

General

  • Target

    51b31400194eb1f4e0abb841842e79cb.exe

  • Size

    108KB

  • MD5

    51b31400194eb1f4e0abb841842e79cb

  • SHA1

    5a4ad59a0dfc0d29aa7874df6a0bfeb28ea7d4d0

  • SHA256

    07fa7d9d94e5f0a52b4e7909026e28f3dd08bf848d13d40d74cc5c65ed2957c9

  • SHA512

    190fe79d2acf333af89b08ca76e335ecae92eafe8134445afd3f7ad15fd23598275044ca626a6f421abeff1ed9ac0f4bb6853a84a1b324847853d1422bba93be

  • SSDEEP

    3072:SKcWmjRrz3LGVgpRBDiQShYNpwzijdI/XowBu:hG9p7DiU76geu

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\51b31400194eb1f4e0abb841842e79cb.exe
    "C:\Users\Admin\AppData\Local\Temp\51b31400194eb1f4e0abb841842e79cb.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1700
    • C:\Users\Admin\AppData\Local\Temp\oKHmZve8i4J3t3V.exe
      C:\Users\Admin\AppData\Local\Temp\oKHmZve8i4J3t3V.exe
      2⤵
      • Executes dropped EXE
      PID:2584
    • C:\Windows\CTS.exe
      "C:\Windows\CTS.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:2432

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\oKHmZve8i4J3t3V.exe

    Filesize

    108KB

    MD5

    9696313b133b34148d3561ebfef0eb1e

    SHA1

    9788ffe047724ec01e38b09c4c678fe053d738ab

    SHA256

    7322cd347bc7e01f38f5015beed6adc1d0adda4ec93b50069ef52c74daa54e60

    SHA512

    dc80b22a7be4b0dfb195158ad1b1e7f4ded3471752a8e4f08855135f7142d7d32fec3899828f942c5f0c84fe0d230cbf681704a8360ed46b705eb278f66641b2

  • C:\Users\Admin\AppData\Local\Temp\oKHmZve8i4J3t3V.exe

    Filesize

    79KB

    MD5

    0d72d43513b4d4f54976f48665f9ee9b

    SHA1

    e508d2503919966189a7b689cef0c11f3ac1294f

    SHA256

    dc5d8756996a72b063ae7a8bd424fda2cb1ad456fdac8c79e4ef5245ff3667d8

    SHA512

    859d27909e0c8a50f1d4f6f297f2203dac9801b1ba5f4612f68b6665a9179b05578849ee2cb445a76ce484bd450ed922e736b251d5798b3502d2aa13d5e56d22

  • C:\Windows\CTS.exe

    Filesize

    29KB

    MD5

    70aa23c9229741a9b52e5ce388a883ac

    SHA1

    b42683e21e13de3f71db26635954d992ebe7119e

    SHA256

    9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

    SHA512

    be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

  • memory/1700-1-0x0000000000050000-0x0000000000067000-memory.dmp

    Filesize

    92KB

  • memory/1700-11-0x0000000000050000-0x0000000000067000-memory.dmp

    Filesize

    92KB

  • memory/1700-12-0x0000000000090000-0x00000000000A7000-memory.dmp

    Filesize

    92KB

  • memory/1700-15-0x0000000000090000-0x00000000000A7000-memory.dmp

    Filesize

    92KB

  • memory/1700-22-0x0000000000090000-0x00000000000A7000-memory.dmp

    Filesize

    92KB

  • memory/2432-16-0x0000000001220000-0x0000000001237000-memory.dmp

    Filesize

    92KB