Analysis

  • max time kernel
    149s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    02/10/2022, 04:12

General

  • Target

    401d2db9356ecf7e2aa329084ec9ac6042e465addc5936607d257a669be4ceaa.exe

  • Size

    200KB

  • MD5

    6e1416a60cc716bafb81fdc6584b7230

  • SHA1

    64331c53c871b0853d26a4baa2ae869e9a97b4ce

  • SHA256

    401d2db9356ecf7e2aa329084ec9ac6042e465addc5936607d257a669be4ceaa

  • SHA512

    b0582dc9cead14b5ded3377633e59d9746c2c5fddeaf360c69ead079378ac908cc699557d4732b78e7cfe5df67499b546a1fa56e8af16827d18217ba597c60f4

  • SSDEEP

    3072:AcmVWc5ltbmP3Q7yHG5eIIZIIA3wu2kj7qxppN1B7Jvz3624ULeuYZb7EnHglkKk:nmUIRf3j2ZzN1B7VZ4luYPQwU

Malware Config

Extracted

Family

sality

C2

http://89.119.67.154/testo5/

http://kukutrustnet777.info/home.gif

http://kukutrustnet888.info/home.gif

http://kukutrustnet987.info/home.gif

http://www.klkjwre9fqwieluoi.info/

http://kukutrustnet777888.info/

Signatures

  • Modifies firewall policy service 2 TTPs 6 IoCs
  • Sality

    Sality is backdoor written in C++, first discovered in 2003.

  • UAC bypass 3 TTPs 2 IoCs
  • Windows security bypass 2 TTPs 12 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Windows security modification 2 TTPs 14 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 22 IoCs

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

  • Drops autorun.inf file 1 TTPs 1 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 42 IoCs
  • Suspicious use of WriteProcessMemory 49 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1236
      • C:\Users\Admin\AppData\Local\Temp\401d2db9356ecf7e2aa329084ec9ac6042e465addc5936607d257a669be4ceaa.exe
        "C:\Users\Admin\AppData\Local\Temp\401d2db9356ecf7e2aa329084ec9ac6042e465addc5936607d257a669be4ceaa.exe"
        2⤵
        • Modifies firewall policy service
        • UAC bypass
        • Windows security bypass
        • Loads dropped DLL
        • Windows security modification
        • Checks whether UAC is enabled
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        • System policy modification
        PID:780
        • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
          "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
          3⤵
          • Modifies firewall policy service
          • UAC bypass
          • Windows security bypass
          • Executes dropped EXE
          • Deletes itself
          • Loads dropped DLL
          • Windows security modification
          • Checks whether UAC is enabled
          • Enumerates connected drives
          • Drops autorun.inf file
          • Drops file in Program Files directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          • System policy modification
          PID:1748
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1192
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1124

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\006BF9CA_Rar\401d2db9356ecf7e2aa329084ec9ac6042e465addc5936607d257a669be4ceaa.exe

          Filesize

          132KB

          MD5

          dd1a1b6147befef950760f249cf16ae1

          SHA1

          e7b17c4428322d3951694f7d3bcadb98bd9369fb

          SHA256

          6078aeb138a4adcb62df0eecb6e3a5a5385781957b0bb5cca3570e0624997f91

          SHA512

          8feb2e9c2f58d71bff6baab1f746bbf15fc45346af84c8c9a919f5098c293b1d47134ee9d9e7960e58675a6bf080fa704d0f8b3f7e8a29ecb77ac88e1d99395b

        • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

          Filesize

          200KB

          MD5

          6e1416a60cc716bafb81fdc6584b7230

          SHA1

          64331c53c871b0853d26a4baa2ae869e9a97b4ce

          SHA256

          401d2db9356ecf7e2aa329084ec9ac6042e465addc5936607d257a669be4ceaa

          SHA512

          b0582dc9cead14b5ded3377633e59d9746c2c5fddeaf360c69ead079378ac908cc699557d4732b78e7cfe5df67499b546a1fa56e8af16827d18217ba597c60f4

        • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

          Filesize

          200KB

          MD5

          6e1416a60cc716bafb81fdc6584b7230

          SHA1

          64331c53c871b0853d26a4baa2ae869e9a97b4ce

          SHA256

          401d2db9356ecf7e2aa329084ec9ac6042e465addc5936607d257a669be4ceaa

          SHA512

          b0582dc9cead14b5ded3377633e59d9746c2c5fddeaf360c69ead079378ac908cc699557d4732b78e7cfe5df67499b546a1fa56e8af16827d18217ba597c60f4

        • C:\Windows\SYSTEM.INI

          Filesize

          255B

          MD5

          560378f00678931321566c6c6f4e33e6

          SHA1

          26fe6bb9c6f8e75d043e5788bd14fc81d46f7659

          SHA256

          efef71488bd06e51797c61c45f7f3115ee21c53f73e3b709a51faca320895ea7

          SHA512

          2cf602767d3de06791cf46ba37c4c9f2b780d1b0b825fccc873df3a0a0bab8a3844407b96827be5c628bdcb58cc1e87c1a680950da4ed7b221136a424b5f0e52

        • \Users\Admin\AppData\Local\Temp\nsyFEBC.tmp\InstallOptions.dll

          Filesize

          15KB

          MD5

          67d8f4d5acdb722e9cb7a99570b3ded1

          SHA1

          f4a729ba77332325ea4dbdeea98b579f501fd26f

          SHA256

          fa8de036b1d9bb06be383a82041966c73473fc8382d041fb5c1758f991afeae7

          SHA512

          03999cc26a76b0de6f7e4e8a45137ee4d9c250366ac5a458110f00f7962158311eea5f22d3ee4f32f85aa6969eb143bdb8f03ca989568764ed2bc488c89b4b7f

        • \Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

          Filesize

          200KB

          MD5

          6e1416a60cc716bafb81fdc6584b7230

          SHA1

          64331c53c871b0853d26a4baa2ae869e9a97b4ce

          SHA256

          401d2db9356ecf7e2aa329084ec9ac6042e465addc5936607d257a669be4ceaa

          SHA512

          b0582dc9cead14b5ded3377633e59d9746c2c5fddeaf360c69ead079378ac908cc699557d4732b78e7cfe5df67499b546a1fa56e8af16827d18217ba597c60f4

        • memory/780-55-0x0000000001E90000-0x0000000002F1E000-memory.dmp

          Filesize

          16.6MB

        • memory/780-56-0x0000000000400000-0x0000000000586000-memory.dmp

          Filesize

          1.5MB

        • memory/780-57-0x0000000001E90000-0x0000000002F1E000-memory.dmp

          Filesize

          16.6MB

        • memory/780-54-0x0000000076321000-0x0000000076323000-memory.dmp

          Filesize

          8KB

        • memory/780-62-0x0000000000400000-0x0000000000586000-memory.dmp

          Filesize

          1.5MB

        • memory/780-63-0x0000000001E90000-0x0000000002F1E000-memory.dmp

          Filesize

          16.6MB

        • memory/1748-67-0x000000000B1B0000-0x000000000C23E000-memory.dmp

          Filesize

          16.6MB

        • memory/1748-69-0x000000000B1B0000-0x000000000C23E000-memory.dmp

          Filesize

          16.6MB

        • memory/1748-70-0x00000000008B0000-0x00000000008B2000-memory.dmp

          Filesize

          8KB

        • memory/1748-64-0x0000000000400000-0x0000000000586000-memory.dmp

          Filesize

          1.5MB

        • memory/1748-72-0x000000000B1B0000-0x000000000C23E000-memory.dmp

          Filesize

          16.6MB

        • memory/1748-73-0x00000000008B0000-0x00000000008B2000-memory.dmp

          Filesize

          8KB

        • memory/1748-74-0x0000000000400000-0x0000000000586000-memory.dmp

          Filesize

          1.5MB