Analysis

  • max time kernel
    143s
  • max time network
    90s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 19:07

General

  • Target

    3a62baec08c03cd3f37e6326a319e12e389f480c62b163a3ccfb918bc84a74fb.dll

  • Size

    1.6MB

  • MD5

    1e10c17f1f3b061af6b83028907c22a5

  • SHA1

    f4b88129c504c027374ccc3fe94e48b8c8134784

  • SHA256

    3a62baec08c03cd3f37e6326a319e12e389f480c62b163a3ccfb918bc84a74fb

  • SHA512

    345f657956337a822c327a8f2063049db65fb88fd7bdd6e8ee04cafb1dd3a4c706e7d0701f871655251f13531dc0fae0d9ceb98de6dd955611ae9da6d79959d0

  • SSDEEP

    49152:Cj/GUb7IfZK2ecXjTDIoADndK5m3WjoW:k5IfZ7FjgRdK

Malware Config

Signatures

  • Blocklisted process makes network request 4 IoCs
  • Modifies AppInit DLL entries 2 TTPs
  • Loads dropped DLL 9 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 1 IoCs
  • Modifies data under HKEY_USERS 51 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\3a62baec08c03cd3f37e6326a319e12e389f480c62b163a3ccfb918bc84a74fb.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\3a62baec08c03cd3f37e6326a319e12e389f480c62b163a3ccfb918bc84a74fb.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2020
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\system32\rundll32.exe" "c:\Program Files (x86)\LighterInstance\LighterInstance.dll",serv -install
        3⤵
        • Loads dropped DLL
        PID:524
  • C:\Windows\system32\rundll32.exe
    "C:\Windows\system32\rundll32.exe" "c:\Program Files (x86)\LighterInstance\LighterInstance.dll",serv
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1120
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\system32\rundll32.exe" "c:\Program Files (x86)\LighterInstance\LighterInstance.dll",serv
      2⤵
      • Loads dropped DLL
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      PID:1656

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • \??\c:\Program Files (x86)\LighterInstance\LighterInstance.dll

    Filesize

    1.6MB

    MD5

    1e10c17f1f3b061af6b83028907c22a5

    SHA1

    f4b88129c504c027374ccc3fe94e48b8c8134784

    SHA256

    3a62baec08c03cd3f37e6326a319e12e389f480c62b163a3ccfb918bc84a74fb

    SHA512

    345f657956337a822c327a8f2063049db65fb88fd7bdd6e8ee04cafb1dd3a4c706e7d0701f871655251f13531dc0fae0d9ceb98de6dd955611ae9da6d79959d0

  • \Program Files (x86)\LighterInstance\LighterInstance.dll

    Filesize

    1.6MB

    MD5

    1e10c17f1f3b061af6b83028907c22a5

    SHA1

    f4b88129c504c027374ccc3fe94e48b8c8134784

    SHA256

    3a62baec08c03cd3f37e6326a319e12e389f480c62b163a3ccfb918bc84a74fb

    SHA512

    345f657956337a822c327a8f2063049db65fb88fd7bdd6e8ee04cafb1dd3a4c706e7d0701f871655251f13531dc0fae0d9ceb98de6dd955611ae9da6d79959d0

  • \Program Files (x86)\LighterInstance\LighterInstance.dll

    Filesize

    1.6MB

    MD5

    1e10c17f1f3b061af6b83028907c22a5

    SHA1

    f4b88129c504c027374ccc3fe94e48b8c8134784

    SHA256

    3a62baec08c03cd3f37e6326a319e12e389f480c62b163a3ccfb918bc84a74fb

    SHA512

    345f657956337a822c327a8f2063049db65fb88fd7bdd6e8ee04cafb1dd3a4c706e7d0701f871655251f13531dc0fae0d9ceb98de6dd955611ae9da6d79959d0

  • \Program Files (x86)\LighterInstance\LighterInstance.dll

    Filesize

    1.6MB

    MD5

    1e10c17f1f3b061af6b83028907c22a5

    SHA1

    f4b88129c504c027374ccc3fe94e48b8c8134784

    SHA256

    3a62baec08c03cd3f37e6326a319e12e389f480c62b163a3ccfb918bc84a74fb

    SHA512

    345f657956337a822c327a8f2063049db65fb88fd7bdd6e8ee04cafb1dd3a4c706e7d0701f871655251f13531dc0fae0d9ceb98de6dd955611ae9da6d79959d0

  • \Program Files (x86)\LighterInstance\LighterInstance.dll

    Filesize

    1.6MB

    MD5

    1e10c17f1f3b061af6b83028907c22a5

    SHA1

    f4b88129c504c027374ccc3fe94e48b8c8134784

    SHA256

    3a62baec08c03cd3f37e6326a319e12e389f480c62b163a3ccfb918bc84a74fb

    SHA512

    345f657956337a822c327a8f2063049db65fb88fd7bdd6e8ee04cafb1dd3a4c706e7d0701f871655251f13531dc0fae0d9ceb98de6dd955611ae9da6d79959d0

  • \Program Files (x86)\LighterInstance\LighterInstance.dll

    Filesize

    1.6MB

    MD5

    1e10c17f1f3b061af6b83028907c22a5

    SHA1

    f4b88129c504c027374ccc3fe94e48b8c8134784

    SHA256

    3a62baec08c03cd3f37e6326a319e12e389f480c62b163a3ccfb918bc84a74fb

    SHA512

    345f657956337a822c327a8f2063049db65fb88fd7bdd6e8ee04cafb1dd3a4c706e7d0701f871655251f13531dc0fae0d9ceb98de6dd955611ae9da6d79959d0

  • \Program Files (x86)\LighterInstance\LighterInstance.dll

    Filesize

    1.6MB

    MD5

    1e10c17f1f3b061af6b83028907c22a5

    SHA1

    f4b88129c504c027374ccc3fe94e48b8c8134784

    SHA256

    3a62baec08c03cd3f37e6326a319e12e389f480c62b163a3ccfb918bc84a74fb

    SHA512

    345f657956337a822c327a8f2063049db65fb88fd7bdd6e8ee04cafb1dd3a4c706e7d0701f871655251f13531dc0fae0d9ceb98de6dd955611ae9da6d79959d0

  • \Program Files (x86)\LighterInstance\LighterInstance.dll

    Filesize

    1.6MB

    MD5

    1e10c17f1f3b061af6b83028907c22a5

    SHA1

    f4b88129c504c027374ccc3fe94e48b8c8134784

    SHA256

    3a62baec08c03cd3f37e6326a319e12e389f480c62b163a3ccfb918bc84a74fb

    SHA512

    345f657956337a822c327a8f2063049db65fb88fd7bdd6e8ee04cafb1dd3a4c706e7d0701f871655251f13531dc0fae0d9ceb98de6dd955611ae9da6d79959d0

  • \Program Files (x86)\LighterInstance\LighterInstance.dll

    Filesize

    1.6MB

    MD5

    1e10c17f1f3b061af6b83028907c22a5

    SHA1

    f4b88129c504c027374ccc3fe94e48b8c8134784

    SHA256

    3a62baec08c03cd3f37e6326a319e12e389f480c62b163a3ccfb918bc84a74fb

    SHA512

    345f657956337a822c327a8f2063049db65fb88fd7bdd6e8ee04cafb1dd3a4c706e7d0701f871655251f13531dc0fae0d9ceb98de6dd955611ae9da6d79959d0

  • \Program Files (x86)\LighterInstance\LighterInstance.dll

    Filesize

    1.6MB

    MD5

    1e10c17f1f3b061af6b83028907c22a5

    SHA1

    f4b88129c504c027374ccc3fe94e48b8c8134784

    SHA256

    3a62baec08c03cd3f37e6326a319e12e389f480c62b163a3ccfb918bc84a74fb

    SHA512

    345f657956337a822c327a8f2063049db65fb88fd7bdd6e8ee04cafb1dd3a4c706e7d0701f871655251f13531dc0fae0d9ceb98de6dd955611ae9da6d79959d0

  • memory/524-61-0x0000000000000000-mapping.dmp

  • memory/524-68-0x000000007EC50000-0x000000007EFA8000-memory.dmp

    Filesize

    3.3MB

  • memory/1656-73-0x0000000000000000-mapping.dmp

  • memory/1656-79-0x000000007EC50000-0x000000007EFA8000-memory.dmp

    Filesize

    3.3MB

  • memory/2020-56-0x000000007EC50000-0x000000007EFA8000-memory.dmp

    Filesize

    3.3MB

  • memory/2020-55-0x00000000760B1000-0x00000000760B3000-memory.dmp

    Filesize

    8KB

  • memory/2020-54-0x0000000000000000-mapping.dmp