Analysis

  • max time kernel
    151s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-11-2022 01:47

General

  • Target

    967a8db54ac259968792d81629b930bfeff404505eff4073b51a30d913bcaf55.exe

  • Size

    509KB

  • MD5

    112978a940b3aa91557b10e37ec65ffb

  • SHA1

    51b06bbcd1a9320c4e1ff63a6d0b2a2221cef536

  • SHA256

    967a8db54ac259968792d81629b930bfeff404505eff4073b51a30d913bcaf55

  • SHA512

    666f25c4cb694b69165b42cf4c71baeb38f0507039e5a455da87f70324f302e0dbfd3e8f5d858c88e35f76acb5c64bc30fed19398f4f636c35a12ecbc61483b3

  • SSDEEP

    12288:X03SAZHsXBEE4V+kwCJwNiNvwPeJYLd95YhJ:XDUEBEE4dlNIPWYBQD

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 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\967a8db54ac259968792d81629b930bfeff404505eff4073b51a30d913bcaf55.exe
    "C:\Users\Admin\AppData\Local\Temp\967a8db54ac259968792d81629b930bfeff404505eff4073b51a30d913bcaf55.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4248
    • C:\Users\Admin\AppData\Local\Temp\967a8db54ac259968792d81629b930bfeff404505eff4073b51a30d913bcaf55.exe
      "C:\Users\Admin\AppData\Local\Temp\967a8db54ac259968792d81629b930bfeff404505eff4073b51a30d913bcaf55.exe"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:4884
      • C:\ProgramData\706527\msfilecom.exe
        "C:\ProgramData\706527\msfilecom.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3928
        • C:\ProgramData\706527\msfilecom.exe
          "C:\ProgramData\706527\msfilecom.exe"
          4⤵
          • 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
          • Suspicious use of WriteProcessMemory
          PID:1216

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\706527\msfilecom.exe

    Filesize

    509KB

    MD5

    112978a940b3aa91557b10e37ec65ffb

    SHA1

    51b06bbcd1a9320c4e1ff63a6d0b2a2221cef536

    SHA256

    967a8db54ac259968792d81629b930bfeff404505eff4073b51a30d913bcaf55

    SHA512

    666f25c4cb694b69165b42cf4c71baeb38f0507039e5a455da87f70324f302e0dbfd3e8f5d858c88e35f76acb5c64bc30fed19398f4f636c35a12ecbc61483b3

  • C:\ProgramData\706527\msfilecom.exe

    Filesize

    509KB

    MD5

    112978a940b3aa91557b10e37ec65ffb

    SHA1

    51b06bbcd1a9320c4e1ff63a6d0b2a2221cef536

    SHA256

    967a8db54ac259968792d81629b930bfeff404505eff4073b51a30d913bcaf55

    SHA512

    666f25c4cb694b69165b42cf4c71baeb38f0507039e5a455da87f70324f302e0dbfd3e8f5d858c88e35f76acb5c64bc30fed19398f4f636c35a12ecbc61483b3

  • C:\ProgramData\706527\msfilecom.exe

    Filesize

    509KB

    MD5

    112978a940b3aa91557b10e37ec65ffb

    SHA1

    51b06bbcd1a9320c4e1ff63a6d0b2a2221cef536

    SHA256

    967a8db54ac259968792d81629b930bfeff404505eff4073b51a30d913bcaf55

    SHA512

    666f25c4cb694b69165b42cf4c71baeb38f0507039e5a455da87f70324f302e0dbfd3e8f5d858c88e35f76acb5c64bc30fed19398f4f636c35a12ecbc61483b3

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\967a8db54ac259968792d81629b930bfeff404505eff4073b51a30d913bcaf55.exe.log

    Filesize

    400B

    MD5

    0a9b4592cd49c3c21f6767c2dabda92f

    SHA1

    f534297527ae5ccc0ecb2221ddeb8e58daeb8b74

    SHA256

    c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd

    SHA512

    6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\msfilecom.exe.log

    Filesize

    400B

    MD5

    0a9b4592cd49c3c21f6767c2dabda92f

    SHA1

    f534297527ae5ccc0ecb2221ddeb8e58daeb8b74

    SHA256

    c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd

    SHA512

    6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307

  • memory/1216-152-0x0000000074880000-0x0000000074E31000-memory.dmp

    Filesize

    5.7MB

  • memory/1216-148-0x0000000074880000-0x0000000074E31000-memory.dmp

    Filesize

    5.7MB

  • memory/1216-143-0x0000000000000000-mapping.dmp

  • memory/3928-138-0x0000000000000000-mapping.dmp

  • memory/3928-141-0x0000000074880000-0x0000000074E31000-memory.dmp

    Filesize

    5.7MB

  • memory/3928-147-0x0000000074880000-0x0000000074E31000-memory.dmp

    Filesize

    5.7MB

  • memory/4248-132-0x0000000074880000-0x0000000074E31000-memory.dmp

    Filesize

    5.7MB

  • memory/4248-136-0x0000000074880000-0x0000000074E31000-memory.dmp

    Filesize

    5.7MB

  • memory/4884-137-0x0000000074880000-0x0000000074E31000-memory.dmp

    Filesize

    5.7MB

  • memory/4884-142-0x0000000074880000-0x0000000074E31000-memory.dmp

    Filesize

    5.7MB

  • memory/4884-134-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/4884-149-0x0000000006C40000-0x0000000006C57000-memory.dmp

    Filesize

    92KB

  • memory/4884-150-0x0000000006C40000-0x0000000006C57000-memory.dmp

    Filesize

    92KB

  • memory/4884-151-0x0000000006C40000-0x0000000006C57000-memory.dmp

    Filesize

    92KB

  • memory/4884-133-0x0000000000000000-mapping.dmp

  • memory/4884-153-0x0000000074880000-0x0000000074E31000-memory.dmp

    Filesize

    5.7MB