luminosity | 9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119

Analysis

max time kernel
152s
max time network
140s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
21-10-2022 18:21

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General

Target

9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe
Size

262KB
MD5

703f1774ed636ad75e5897045bcedab0
SHA1

97ad9984b52f8139ca7a3354588eceb7978a6300
SHA256

9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119
SHA512

fc43ec401257fc9d7f192b97cc0960dd86005a1392e6d0960da2833cf3c0ce0322d54284c12e34d2d11afe8fa5ed75f455ba059a424d5cfa3a68e2fb8354062a
SSDEEP

6144:o+YzmJfY2vscKGmXlVC4ckkRGRUt53nONnx6:o+emJA2LKGmXHRilnOh

Score

10^/10

luminosity persistence rat

Malware Config

Signatures

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

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\144855\\helper.exe\""	helper.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,\"C:\\Windows\\system32\\clientsvr.exe\""	helper.exe

Executes dropped EXE 3 IoCs

pid	Process
624	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe
796	helper.exe
1380	helper.exe

Deletes itself 1 IoCs

pid	Process
624	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe

Loads dropped DLL 4 IoCs

pid	Process
1736	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe
624	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe
624	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe
796	helper.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Computer Helper = "\"C:\\ProgramData\\144855\\helper.exe\""	helper.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\clientsvr.exe	helper.exe
File opened for modification	C:\Windows\SysWOW64\clientsvr.exe	helper.exe
File created	C:\Windows\SysWOW64\clientsvr.exe\:ZONE.identifier:$DATA	helper.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1736 set thread context of 624	1736	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	30
PID 796 set thread context of 1380	796	helper.exe	35

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

NTFS ADS 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe:ZONE.identifier	cmd.exe
File created	C:\ProgramData\144855\helper.exe:ZONE.identifier	cmd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1380	helper.exe
1380	helper.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
624	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1380	helper.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1380	helper.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 1908	1736	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	28
PID 1736 wrote to memory of 1908	1736	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	28
PID 1736 wrote to memory of 1908	1736	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	28
PID 1736 wrote to memory of 1908	1736	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	28
PID 1736 wrote to memory of 624	1736	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	30
PID 1736 wrote to memory of 624	1736	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	30
PID 1736 wrote to memory of 624	1736	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	30
PID 1736 wrote to memory of 624	1736	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	30
PID 1736 wrote to memory of 624	1736	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	30
PID 1736 wrote to memory of 624	1736	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	30
PID 1736 wrote to memory of 624	1736	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	30
PID 1736 wrote to memory of 624	1736	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	30
PID 1736 wrote to memory of 624	1736	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	30
PID 624 wrote to memory of 796	624	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	32
PID 624 wrote to memory of 796	624	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	32
PID 624 wrote to memory of 796	624	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	32
PID 624 wrote to memory of 796	624	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	32
PID 796 wrote to memory of 1980	796	helper.exe	33
PID 796 wrote to memory of 1980	796	helper.exe	33
PID 796 wrote to memory of 1980	796	helper.exe	33
PID 796 wrote to memory of 1980	796	helper.exe	33
PID 796 wrote to memory of 1380	796	helper.exe	35
PID 796 wrote to memory of 1380	796	helper.exe	35
PID 796 wrote to memory of 1380	796	helper.exe	35
PID 796 wrote to memory of 1380	796	helper.exe	35
PID 796 wrote to memory of 1380	796	helper.exe	35
PID 796 wrote to memory of 1380	796	helper.exe	35
PID 796 wrote to memory of 1380	796	helper.exe	35
PID 796 wrote to memory of 1380	796	helper.exe	35
PID 796 wrote to memory of 1380	796	helper.exe	35

C:\Users\Admin\AppData\Local\Temp\9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe
"C:\Users\Admin\AppData\Local\Temp\9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c echo [zoneTransfer]ZoneID = 2 > "C:\Users\Admin\AppData\Local\Temp\9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe":ZONE.identifier & exit
  2⤵
  - NTFS ADS
  PID:1908
- C:\Users\Admin\AppData\Local\Temp\9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe
  "C:\Users\Admin\AppData\Local\Temp\9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe"
  2⤵
  - Executes dropped EXE
  - Deletes itself
  - Loads dropped DLL
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:624
- - C:\ProgramData\144855\helper.exe
    "C:\ProgramData\144855\helper.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:796
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c echo [zoneTransfer]ZoneID = 2 > "C:\ProgramData\144855\helper.exe":ZONE.identifier & exit
      4⤵
      NTFS ADS
      PID:1980
  - - C:\ProgramData\144855\helper.exe
      "C:\ProgramData\144855\helper.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
      PID:1380

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\144855\helper.exe

Filesize
262KB

MD5
703f1774ed636ad75e5897045bcedab0

SHA1
97ad9984b52f8139ca7a3354588eceb7978a6300

SHA256
9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119

SHA512
fc43ec401257fc9d7f192b97cc0960dd86005a1392e6d0960da2833cf3c0ce0322d54284c12e34d2d11afe8fa5ed75f455ba059a424d5cfa3a68e2fb8354062a

Download Submit
C:\ProgramData\144855\helper.exe

Filesize
262KB

MD5
703f1774ed636ad75e5897045bcedab0

SHA1
97ad9984b52f8139ca7a3354588eceb7978a6300

SHA256
9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119

SHA512
fc43ec401257fc9d7f192b97cc0960dd86005a1392e6d0960da2833cf3c0ce0322d54284c12e34d2d11afe8fa5ed75f455ba059a424d5cfa3a68e2fb8354062a

Download Submit
C:\ProgramData\144855\helper.exe

Filesize
262KB

MD5
703f1774ed636ad75e5897045bcedab0

SHA1
97ad9984b52f8139ca7a3354588eceb7978a6300

SHA256
9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119

SHA512
fc43ec401257fc9d7f192b97cc0960dd86005a1392e6d0960da2833cf3c0ce0322d54284c12e34d2d11afe8fa5ed75f455ba059a424d5cfa3a68e2fb8354062a

Download Submit
C:\ProgramData\144855\helper.exe

Filesize
262KB

MD5
703f1774ed636ad75e5897045bcedab0

SHA1
97ad9984b52f8139ca7a3354588eceb7978a6300

SHA256
9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119

SHA512
fc43ec401257fc9d7f192b97cc0960dd86005a1392e6d0960da2833cf3c0ce0322d54284c12e34d2d11afe8fa5ed75f455ba059a424d5cfa3a68e2fb8354062a

Download Submit
C:\Users\Admin\AppData\Local\Temp\9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe

Filesize
262KB

MD5
703f1774ed636ad75e5897045bcedab0

SHA1
97ad9984b52f8139ca7a3354588eceb7978a6300

SHA256
9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119

SHA512
fc43ec401257fc9d7f192b97cc0960dd86005a1392e6d0960da2833cf3c0ce0322d54284c12e34d2d11afe8fa5ed75f455ba059a424d5cfa3a68e2fb8354062a

Download Submit
C:\Users\Admin\AppData\Local\Temp\9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe

Filesize
262KB

MD5
703f1774ed636ad75e5897045bcedab0

SHA1
97ad9984b52f8139ca7a3354588eceb7978a6300

SHA256
9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119

SHA512
fc43ec401257fc9d7f192b97cc0960dd86005a1392e6d0960da2833cf3c0ce0322d54284c12e34d2d11afe8fa5ed75f455ba059a424d5cfa3a68e2fb8354062a

Download Submit
\ProgramData\144855\helper.exe

Filesize
262KB

MD5
703f1774ed636ad75e5897045bcedab0

SHA1
97ad9984b52f8139ca7a3354588eceb7978a6300

SHA256
9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119

SHA512
fc43ec401257fc9d7f192b97cc0960dd86005a1392e6d0960da2833cf3c0ce0322d54284c12e34d2d11afe8fa5ed75f455ba059a424d5cfa3a68e2fb8354062a

Download Submit
\ProgramData\144855\helper.exe

Filesize
262KB

MD5
703f1774ed636ad75e5897045bcedab0

SHA1
97ad9984b52f8139ca7a3354588eceb7978a6300

SHA256
9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119

SHA512
fc43ec401257fc9d7f192b97cc0960dd86005a1392e6d0960da2833cf3c0ce0322d54284c12e34d2d11afe8fa5ed75f455ba059a424d5cfa3a68e2fb8354062a

Download Submit
\ProgramData\144855\helper.exe

Filesize
262KB

MD5
703f1774ed636ad75e5897045bcedab0

SHA1
97ad9984b52f8139ca7a3354588eceb7978a6300

SHA256
9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119

SHA512
fc43ec401257fc9d7f192b97cc0960dd86005a1392e6d0960da2833cf3c0ce0322d54284c12e34d2d11afe8fa5ed75f455ba059a424d5cfa3a68e2fb8354062a

Download Submit
\Users\Admin\AppData\Local\Temp\9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe

Filesize
262KB

MD5
703f1774ed636ad75e5897045bcedab0

SHA1
97ad9984b52f8139ca7a3354588eceb7978a6300

SHA256
9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119

SHA512
fc43ec401257fc9d7f192b97cc0960dd86005a1392e6d0960da2833cf3c0ce0322d54284c12e34d2d11afe8fa5ed75f455ba059a424d5cfa3a68e2fb8354062a

Download Submit
memory/624-73-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/624-81-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/624-71-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/624-100-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/624-59-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/624-64-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/624-69-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/624-62-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/624-60-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/796-80-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/796-94-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/1380-99-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/1380-101-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/1736-54-0x0000000075DA1000-0x0000000075DA3000-memory.dmp

Filesize
8KB

Download
memory/1736-55-0x0000000074290000-0x000000007483B000-memory.dmp

Filesize
5.7MB

Download
memory/1736-68-0x0000000074290000-0x000000007483B000-memory.dmp

Filesize
5.7MB

Download