Analysis

  • max time kernel
    159s
  • max time network
    93s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    13-10-2022 17:09

General

  • Target

    76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7.exe

  • Size

    248KB

  • MD5

    79ba3a3666976d7b8c14ec98c7a2bed0

  • SHA1

    b7607e097c70dcb5e96df839b1eeb8c3c240133f

  • SHA256

    76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7

  • SHA512

    e8fd1b0130d166130a4fb4ad062066784453dff17afd4da0cbd09669abd497c98816c3cecb9fd9f5729845004922fa89fb785a6244e6586d59f1fbb3199295ec

  • SSDEEP

    3072:KU4f+fkjZt7fF0L2vMCDiu0Y8RxwLRMcR9aBeWvfxLWDwjeWJ2NJucbPvJ1nlYZC:K1i+f3uBmLbR9JWJWqJYJuEvPr

Malware Config

Signatures

  • Luminosity

    Luminosity is a RAT family that was on sale, while claiming to be a system administration utility.

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7.exe
    "C:\Users\Admin\AppData\Local\Temp\76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:1904
    • C:\ProgramData\517743\sysmon.exe
      "C:\ProgramData\517743\sysmon.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2040

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\517743\sysmon.exe

    Filesize

    248KB

    MD5

    79ba3a3666976d7b8c14ec98c7a2bed0

    SHA1

    b7607e097c70dcb5e96df839b1eeb8c3c240133f

    SHA256

    76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7

    SHA512

    e8fd1b0130d166130a4fb4ad062066784453dff17afd4da0cbd09669abd497c98816c3cecb9fd9f5729845004922fa89fb785a6244e6586d59f1fbb3199295ec

  • C:\ProgramData\517743\sysmon.exe

    Filesize

    248KB

    MD5

    79ba3a3666976d7b8c14ec98c7a2bed0

    SHA1

    b7607e097c70dcb5e96df839b1eeb8c3c240133f

    SHA256

    76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7

    SHA512

    e8fd1b0130d166130a4fb4ad062066784453dff17afd4da0cbd09669abd497c98816c3cecb9fd9f5729845004922fa89fb785a6244e6586d59f1fbb3199295ec

  • \ProgramData\517743\sysmon.exe

    Filesize

    248KB

    MD5

    79ba3a3666976d7b8c14ec98c7a2bed0

    SHA1

    b7607e097c70dcb5e96df839b1eeb8c3c240133f

    SHA256

    76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7

    SHA512

    e8fd1b0130d166130a4fb4ad062066784453dff17afd4da0cbd09669abd497c98816c3cecb9fd9f5729845004922fa89fb785a6244e6586d59f1fbb3199295ec

  • \ProgramData\517743\sysmon.exe

    Filesize

    248KB

    MD5

    79ba3a3666976d7b8c14ec98c7a2bed0

    SHA1

    b7607e097c70dcb5e96df839b1eeb8c3c240133f

    SHA256

    76197d7e8b5862d215563cded0ac38354a27306b69ffca8e451d7369abc088e7

    SHA512

    e8fd1b0130d166130a4fb4ad062066784453dff17afd4da0cbd09669abd497c98816c3cecb9fd9f5729845004922fa89fb785a6244e6586d59f1fbb3199295ec

  • memory/1904-54-0x0000000075501000-0x0000000075503000-memory.dmp

    Filesize

    8KB

  • memory/1904-55-0x0000000074840000-0x0000000074DEB000-memory.dmp

    Filesize

    5.7MB

  • memory/1904-63-0x0000000074840000-0x0000000074DEB000-memory.dmp

    Filesize

    5.7MB

  • memory/1904-65-0x0000000074840000-0x0000000074DEB000-memory.dmp

    Filesize

    5.7MB

  • memory/2040-62-0x0000000074840000-0x0000000074DEB000-memory.dmp

    Filesize

    5.7MB

  • memory/2040-64-0x0000000074840000-0x0000000074DEB000-memory.dmp

    Filesize

    5.7MB