Analysis

  • max time kernel
    151s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    04/12/2022, 00:48

General

  • Target

    d9318f0be41564bf6c33614d27fbcd97a11b3aec7c128fab62f75a123e3d920e.exe

  • Size

    56KB

  • MD5

    a91fe0d26b0af6b1dabe09967a695b11

  • SHA1

    49a9f02b485c99cb32c3658e6c5e3c943c9165be

  • SHA256

    d9318f0be41564bf6c33614d27fbcd97a11b3aec7c128fab62f75a123e3d920e

  • SHA512

    a33ba44aa2845b95498d45e11222b8bf642179d53d168bfde086c4ebc5d07c21d2e91ada732a5b6db78a3fdb6bac8fd137a1baa813bee23872d50f195dd93f6b

  • SSDEEP

    1536:EXAj4d9lZXp0RuoOlabXAdWE+4OnFokNx3aGGgo:Nalr0fOeXAdWEuXNxqGXo

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Drops file in Windows directory 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: LoadsDriver 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d9318f0be41564bf6c33614d27fbcd97a11b3aec7c128fab62f75a123e3d920e.exe
    "C:\Users\Admin\AppData\Local\Temp\d9318f0be41564bf6c33614d27fbcd97a11b3aec7c128fab62f75a123e3d920e.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1520
    • C:\Users\Admin\AppData\Local\Temp\d9318f0be41564bf6c33614d27fbcd97a11b3aec7c128fab62f75a123e3d920e.exe
      C:\Users\Admin\AppData\Local\Temp\d9318f0be41564bf6c33614d27fbcd97a11b3aec7c128fab62f75a123e3d920e.exe -SafeSys
      2⤵
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:632
      • C:\Windows\SysWOW64\Rundll32.exe
        "C:\Windows\system32\Rundll32.exe" "C:\Program Files (x86)\ieowa.bak",MyDLLEntry
        3⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        PID:1032
    • C:\Program Files (x86)\Common Files\SafeSys.exe
      "C:\Program Files (x86)\Common Files\SafeSys.exe" SafeSys
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1964
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\system32\svchost.exe
        3⤵
          PID:296
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c C:\Users\Admin\AppData\Local\Temp\~orusq.bat
        2⤵
          PID:1172
      • C:\Windows\System32\rundll32.exe
        C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {995C996E-D918-4a8c-A302-45719A6F4EA7} -Embedding
        1⤵
          PID:1596

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • C:\Program Files (x86)\Common Files\SafeSys.exe

                Filesize

                56KB

                MD5

                a91fe0d26b0af6b1dabe09967a695b11

                SHA1

                49a9f02b485c99cb32c3658e6c5e3c943c9165be

                SHA256

                d9318f0be41564bf6c33614d27fbcd97a11b3aec7c128fab62f75a123e3d920e

                SHA512

                a33ba44aa2845b95498d45e11222b8bf642179d53d168bfde086c4ebc5d07c21d2e91ada732a5b6db78a3fdb6bac8fd137a1baa813bee23872d50f195dd93f6b

              • C:\Program Files (x86)\Common Files\SafeSys.exe

                Filesize

                56KB

                MD5

                a91fe0d26b0af6b1dabe09967a695b11

                SHA1

                49a9f02b485c99cb32c3658e6c5e3c943c9165be

                SHA256

                d9318f0be41564bf6c33614d27fbcd97a11b3aec7c128fab62f75a123e3d920e

                SHA512

                a33ba44aa2845b95498d45e11222b8bf642179d53d168bfde086c4ebc5d07c21d2e91ada732a5b6db78a3fdb6bac8fd137a1baa813bee23872d50f195dd93f6b

              • C:\Program Files (x86)\ieowa.bak

                Filesize

                10KB

                MD5

                0a8d07ff358703bf65b83b09b7b78432

                SHA1

                2ad9134da8db9ce75489dcaed7ec8828b7ed0651

                SHA256

                93878bfdddfff8c1ad14af2bdae67a386d1bc8aac8ddb594c68898d90f5a0118

                SHA512

                3aa1dbe7016f856205d127e5ad29b723f80c7bd337419ab66d61e8cef2390cbe2df3418ca71a68ed88aa26e18551c2a94e532b5d7e36aa8fb4d7abb572856361

              • \Program Files (x86)\Common Files\SafeSys.exe

                Filesize

                56KB

                MD5

                a91fe0d26b0af6b1dabe09967a695b11

                SHA1

                49a9f02b485c99cb32c3658e6c5e3c943c9165be

                SHA256

                d9318f0be41564bf6c33614d27fbcd97a11b3aec7c128fab62f75a123e3d920e

                SHA512

                a33ba44aa2845b95498d45e11222b8bf642179d53d168bfde086c4ebc5d07c21d2e91ada732a5b6db78a3fdb6bac8fd137a1baa813bee23872d50f195dd93f6b

              • \Program Files (x86)\Common Files\SafeSys.exe

                Filesize

                56KB

                MD5

                a91fe0d26b0af6b1dabe09967a695b11

                SHA1

                49a9f02b485c99cb32c3658e6c5e3c943c9165be

                SHA256

                d9318f0be41564bf6c33614d27fbcd97a11b3aec7c128fab62f75a123e3d920e

                SHA512

                a33ba44aa2845b95498d45e11222b8bf642179d53d168bfde086c4ebc5d07c21d2e91ada732a5b6db78a3fdb6bac8fd137a1baa813bee23872d50f195dd93f6b

              • \Program Files (x86)\ieowa.bak

                Filesize

                10KB

                MD5

                0a8d07ff358703bf65b83b09b7b78432

                SHA1

                2ad9134da8db9ce75489dcaed7ec8828b7ed0651

                SHA256

                93878bfdddfff8c1ad14af2bdae67a386d1bc8aac8ddb594c68898d90f5a0118

                SHA512

                3aa1dbe7016f856205d127e5ad29b723f80c7bd337419ab66d61e8cef2390cbe2df3418ca71a68ed88aa26e18551c2a94e532b5d7e36aa8fb4d7abb572856361

              • memory/296-76-0x0000000000400000-0x0000000000438000-memory.dmp

                Filesize

                224KB

              • memory/296-74-0x0000000000400000-0x0000000000438000-memory.dmp

                Filesize

                224KB

              • memory/632-59-0x0000000000400000-0x0000000000438000-memory.dmp

                Filesize

                224KB

              • memory/1032-65-0x0000000000400000-0x0000000000415000-memory.dmp

                Filesize

                84KB

              • memory/1032-63-0x0000000000400000-0x0000000000415000-memory.dmp

                Filesize

                84KB

              • memory/1520-54-0x0000000075C31000-0x0000000075C33000-memory.dmp

                Filesize

                8KB

              • memory/1520-72-0x0000000002CA0000-0x0000000002CD8000-memory.dmp

                Filesize

                224KB

              • memory/1520-64-0x0000000000400000-0x0000000000438000-memory.dmp

                Filesize

                224KB

              • memory/1520-78-0x0000000002CA0000-0x0000000002CD8000-memory.dmp

                Filesize

                224KB

              • memory/1520-55-0x0000000000400000-0x0000000000438000-memory.dmp

                Filesize

                224KB

              • memory/1520-81-0x0000000000400000-0x0000000000438000-memory.dmp

                Filesize

                224KB

              • memory/1964-73-0x0000000000400000-0x0000000000438000-memory.dmp

                Filesize

                224KB

              • memory/1964-79-0x0000000000400000-0x0000000000438000-memory.dmp

                Filesize

                224KB

              • memory/1964-82-0x0000000000400000-0x0000000000438000-memory.dmp

                Filesize

                224KB