Analysis

  • max time kernel
    122s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    29/02/2024, 08:51

General

  • Target

    Packed.Win32.Salpack.dll

  • Size

    120KB

  • MD5

    fb8b3e5be92b6d3939a2481735fe6d51

  • SHA1

    0212fcc74a64fb93e3c3b5481ed5595259b67b70

  • SHA256

    e438d0a0631047f8f62fa69bd4dc07f6c4f0f1cac554b7ba6d166c0d5cf6f2e8

  • SHA512

    22a983cb6af1fd01cc012ba76747629b4a037ab2c2d720babd22af1fc92e42a131f57532aa3449ce0ad5f0d4e8ebf75d94dc438ecac3c41e327caf7d632e6a0f

  • SSDEEP

    1536:wOJRalekPiLKM+88m+xJMVJxKgJvhmnJTPb8QIPal60GkOPfOQZ0pYxJDac3280P:VapKw924noBThzJDZN0P

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

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
  • Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality 25 IoCs
  • UPX dump on OEP (original entry point) 29 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • UPX packed file 25 IoCs

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

  • Windows security modification 2 TTPs 14 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 6 IoCs

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

  • Drops file in Windows directory 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 21 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1124
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1180
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1276
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\Packed.Win32.Salpack.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1728
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\Packed.Win32.Salpack.dll,#1
              3⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:3020
              • C:\Users\Admin\AppData\Local\Temp\f763939.exe
                C:\Users\Admin\AppData\Local\Temp\f763939.exe
                4⤵
                • Modifies firewall policy service
                • UAC bypass
                • Windows security bypass
                • Executes dropped EXE
                • Windows security modification
                • Checks whether UAC is enabled
                • Enumerates connected drives
                • Drops file in Windows directory
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                • System policy modification
                PID:2072
              • C:\Users\Admin\AppData\Local\Temp\f764328.exe
                C:\Users\Admin\AppData\Local\Temp\f764328.exe
                4⤵
                • Executes dropped EXE
                PID:2696
              • C:\Users\Admin\AppData\Local\Temp\f765a6f.exe
                C:\Users\Admin\AppData\Local\Temp\f765a6f.exe
                4⤵
                • Modifies firewall policy service
                • UAC bypass
                • Windows security bypass
                • Executes dropped EXE
                • Windows security modification
                • Checks whether UAC is enabled
                • Drops file in Windows directory
                • System policy modification
                PID:2420
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1956

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Users\Admin\AppData\Local\Temp\f764328.exe

                  Filesize

                  64KB

                  MD5

                  3d6c458f3cd1986a2c05223a1c832cd0

                  SHA1

                  33c272ba8655b6c6299930d89e4db0a2e5396b80

                  SHA256

                  0b398016f770d77cb3aa085ad5aabd855e9705873b891932e609f1f382051fba

                  SHA512

                  f097b7e3eff478d6d4e4c374a53d5939ec31633dbf6fac094b142d5832def73a2d06ce97d9546b7b5c3bf9764f48b0f199e14353a4d679715c18dfb4cef30ce3

                • C:\Windows\SYSTEM.INI

                  Filesize

                  257B

                  MD5

                  96b8c0a875eb41cf79192337d0a7b0f7

                  SHA1

                  3cbe9ec1460f544a66721bffc871221aecdce0ba

                  SHA256

                  995e17ef7b2ac6026ed429c5032f4c37b946abd624e499bb06647656133b55b1

                  SHA512

                  d178e393d2dd97690e844aa95aec0ad77f032912c001c0deb75a0e362b2d13633b89294806aa24835c99ff622b77b7fef3fb5e0d90635de89cc2ef07f11bfd27

                • \Users\Admin\AppData\Local\Temp\f763939.exe

                  Filesize

                  97KB

                  MD5

                  2dbaf6c9322694eed36f5db287e977b5

                  SHA1

                  9009b4e7ef9e7f1f012bff8c2a6beb311ace94c4

                  SHA256

                  cf3f29025570deb7227b4cd4b8a88d49c3987f0abaa26d04581bec3fc1957db3

                  SHA512

                  8347e8ef0c4ba69329e0f27af10bd71858692f0696abfde1b8e32d1c50ad49049b7df9f5ffbc5d3f88d489337e8a464d309e7c845775b2d0f131835d3bc54c71

                • memory/1124-15-0x00000000001A0000-0x00000000001A2000-memory.dmp

                  Filesize

                  8KB

                • memory/2072-83-0x00000000005D0000-0x000000000168A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2072-93-0x00000000005D0000-0x000000000168A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2072-11-0x00000000005D0000-0x000000000168A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2072-14-0x00000000005D0000-0x000000000168A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2072-17-0x00000000005D0000-0x000000000168A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2072-21-0x00000000005D0000-0x000000000168A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2072-10-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/2072-26-0x00000000005D0000-0x000000000168A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2072-132-0x00000000005D0000-0x000000000168A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2072-131-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/2072-33-0x00000000005D0000-0x000000000168A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2072-95-0x00000000005D0000-0x000000000168A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2072-45-0x00000000005D0000-0x000000000168A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2072-63-0x00000000005D0000-0x000000000168A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2072-60-0x00000000004C0000-0x00000000004C2000-memory.dmp

                  Filesize

                  8KB

                • memory/2072-62-0x00000000005D0000-0x000000000168A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2072-88-0x00000000005D0000-0x000000000168A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2072-51-0x00000000005D0000-0x000000000168A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2072-53-0x00000000005D0000-0x000000000168A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2072-55-0x00000000005D0000-0x000000000168A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2072-57-0x00000000005D0000-0x000000000168A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2072-61-0x0000000003D10000-0x0000000003D11000-memory.dmp

                  Filesize

                  4KB

                • memory/2072-13-0x00000000005D0000-0x000000000168A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2072-82-0x00000000005D0000-0x000000000168A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2072-80-0x00000000005D0000-0x000000000168A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2072-64-0x00000000005D0000-0x000000000168A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2072-66-0x00000000005D0000-0x000000000168A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2420-142-0x00000000009B0000-0x0000000001A6A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2420-141-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/2420-134-0x00000000009B0000-0x0000000001A6A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2420-109-0x0000000000260000-0x0000000000262000-memory.dmp

                  Filesize

                  8KB

                • memory/2420-79-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/2696-50-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/2696-101-0x0000000000220000-0x0000000000222000-memory.dmp

                  Filesize

                  8KB

                • memory/2696-102-0x0000000000230000-0x0000000000231000-memory.dmp

                  Filesize

                  4KB

                • memory/3020-1-0x0000000010000000-0x0000000010020000-memory.dmp

                  Filesize

                  128KB

                • memory/3020-74-0x00000000001E0000-0x00000000001E2000-memory.dmp

                  Filesize

                  8KB

                • memory/3020-37-0x0000000000200000-0x0000000000201000-memory.dmp

                  Filesize

                  4KB

                • memory/3020-9-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/3020-35-0x00000000001E0000-0x00000000001E2000-memory.dmp

                  Filesize

                  8KB

                • memory/3020-28-0x0000000000200000-0x0000000000201000-memory.dmp

                  Filesize

                  4KB

                • memory/3020-49-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/3020-27-0x00000000001E0000-0x00000000001E2000-memory.dmp

                  Filesize

                  8KB

                • memory/3020-47-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/3020-78-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB