luminosity | 9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119

Analysis

max time kernel
160s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,\"C:\\Windows\\system32\\clientsvr.exe\""	helper.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\ProgramData\\600135\\helper.exe\""	helper.exe

Executes dropped EXE 3 IoCs

pid	Process
4180	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe
1952	helper.exe
3896	helper.exe

Checks computer location settings 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	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-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Computer Helper = "\"C:\\ProgramData\\600135\\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 4872 set thread context of 4180	4872	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	90
PID 1952 set thread context of 3896	1952	helper.exe	96

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\600135\helper.exe:ZONE.identifier	cmd.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
4180	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe
4180	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe
3896	helper.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4180	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3896	helper.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3896	helper.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 4872 wrote to memory of 3264	4872	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	88
PID 4872 wrote to memory of 3264	4872	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	88
PID 4872 wrote to memory of 3264	4872	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	88
PID 4872 wrote to memory of 4180	4872	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	90
PID 4872 wrote to memory of 4180	4872	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	90
PID 4872 wrote to memory of 4180	4872	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	90
PID 4872 wrote to memory of 4180	4872	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	90
PID 4872 wrote to memory of 4180	4872	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	90
PID 4872 wrote to memory of 4180	4872	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	90
PID 4872 wrote to memory of 4180	4872	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	90
PID 4872 wrote to memory of 4180	4872	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	90
PID 4180 wrote to memory of 1952	4180	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	93
PID 4180 wrote to memory of 1952	4180	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	93
PID 4180 wrote to memory of 1952	4180	9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe	93
PID 1952 wrote to memory of 4584	1952	helper.exe	94
PID 1952 wrote to memory of 4584	1952	helper.exe	94
PID 1952 wrote to memory of 4584	1952	helper.exe	94
PID 1952 wrote to memory of 3896	1952	helper.exe	96
PID 1952 wrote to memory of 3896	1952	helper.exe	96
PID 1952 wrote to memory of 3896	1952	helper.exe	96
PID 1952 wrote to memory of 3896	1952	helper.exe	96
PID 1952 wrote to memory of 3896	1952	helper.exe	96
PID 1952 wrote to memory of 3896	1952	helper.exe	96
PID 1952 wrote to memory of 3896	1952	helper.exe	96
PID 1952 wrote to memory of 3896	1952	helper.exe	96
PID 3896 wrote to memory of 4180	3896	helper.exe	90
PID 3896 wrote to memory of 4180	3896	helper.exe	90
PID 3896 wrote to memory of 4180	3896	helper.exe	90
PID 3896 wrote to memory of 4180	3896	helper.exe	90
PID 3896 wrote to memory of 4180	3896	helper.exe	90

C:\Users\Admin\AppData\Local\Temp\9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe
"C:\Users\Admin\AppData\Local\Temp\9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4872
- 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:3264
- C:\Users\Admin\AppData\Local\Temp\9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe
  "C:\Users\Admin\AppData\Local\Temp\9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe"
  2⤵
  - Executes dropped EXE
  - Checks computer location settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:4180
- - C:\ProgramData\600135\helper.exe
    "C:\ProgramData\600135\helper.exe"
    3⤵
    - Executes dropped EXE
    - Checks computer location settings
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1952
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c echo [zoneTransfer]ZoneID = 2 > "C:\ProgramData\600135\helper.exe":ZONE.identifier & exit
      4⤵
      NTFS ADS
      PID:4584
  - - C:\ProgramData\600135\helper.exe
      "C:\ProgramData\600135\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
      Suspicious use of WriteProcessMemory
      PID:3896

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\600135\helper.exe

Filesize
262KB

MD5
703f1774ed636ad75e5897045bcedab0

SHA1
97ad9984b52f8139ca7a3354588eceb7978a6300

SHA256
9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119

SHA512
fc43ec401257fc9d7f192b97cc0960dd86005a1392e6d0960da2833cf3c0ce0322d54284c12e34d2d11afe8fa5ed75f455ba059a424d5cfa3a68e2fb8354062a

Download Submit
C:\ProgramData\600135\helper.exe

Filesize
262KB

MD5
703f1774ed636ad75e5897045bcedab0

SHA1
97ad9984b52f8139ca7a3354588eceb7978a6300

SHA256
9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119

SHA512
fc43ec401257fc9d7f192b97cc0960dd86005a1392e6d0960da2833cf3c0ce0322d54284c12e34d2d11afe8fa5ed75f455ba059a424d5cfa3a68e2fb8354062a

Download Submit
C:\ProgramData\600135\helper.exe

Filesize
262KB

MD5
703f1774ed636ad75e5897045bcedab0

SHA1
97ad9984b52f8139ca7a3354588eceb7978a6300

SHA256
9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119

SHA512
fc43ec401257fc9d7f192b97cc0960dd86005a1392e6d0960da2833cf3c0ce0322d54284c12e34d2d11afe8fa5ed75f455ba059a424d5cfa3a68e2fb8354062a

Download Submit
C:\ProgramData\600135\helper.exe

Filesize
262KB

MD5
703f1774ed636ad75e5897045bcedab0

SHA1
97ad9984b52f8139ca7a3354588eceb7978a6300

SHA256
9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119

SHA512
fc43ec401257fc9d7f192b97cc0960dd86005a1392e6d0960da2833cf3c0ce0322d54284c12e34d2d11afe8fa5ed75f455ba059a424d5cfa3a68e2fb8354062a

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\9b3026aba4a24f1103eeb402b55d42bf7e915cfae48a7141293d8fff97184119.exe.log

Filesize
223B

MD5
1cc4c5b51e50ec74a6880b50ecbee28b

SHA1
1ba7bb0e86c3d23fb0dc8bf16798d37afb4c4aba

SHA256
0556734df26e82e363d47748a3ceedd5c23ea4b9ded6e68bd5c373c1c9f8777b

SHA512
5d5532602b381125b24a9bd78781ed722ce0c862214ef17e7d224d269e6e7045c919ab19896dd8d9ae8920726092efe0ffb776a77a9a9539c4a70188d5a4c706

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\helper.exe.log

Filesize
223B

MD5
1cc4c5b51e50ec74a6880b50ecbee28b

SHA1
1ba7bb0e86c3d23fb0dc8bf16798d37afb4c4aba

SHA256
0556734df26e82e363d47748a3ceedd5c23ea4b9ded6e68bd5c373c1c9f8777b

SHA512
5d5532602b381125b24a9bd78781ed722ce0c862214ef17e7d224d269e6e7045c919ab19896dd8d9ae8920726092efe0ffb776a77a9a9539c4a70188d5a4c706

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
memory/1952-146-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/1952-153-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/1952-144-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/3896-154-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/3896-157-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/4180-139-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/4180-136-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/4180-145-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/4180-155-0x0000000007160000-0x0000000007177000-memory.dmp

Filesize
92KB

Download
memory/4180-158-0x0000000007160000-0x0000000007177000-memory.dmp

Filesize
92KB

Download
memory/4180-156-0x0000000007160000-0x0000000007177000-memory.dmp

Filesize
92KB

Download
memory/4180-160-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/4872-140-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/4872-132-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/4872-133-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download