Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    25-05-2024 19:47

General

  • Target

    277ece483099924369f4df110b2b588c6bc2cf8757e4691cf385a3f35e82fd23.dll

  • Size

    120KB

  • MD5

    c73cda124b4727983b926c4e94957a95

  • SHA1

    a0aeb2e77674ed3bd86399e6bf44204d593cf92e

  • SHA256

    277ece483099924369f4df110b2b588c6bc2cf8757e4691cf385a3f35e82fd23

  • SHA512

    223985bea00df6bf903033248c196e2b2d1b3b41f87b5b15bdc47d1baa4765b99f9cd05c3dab7009c117a7934bf25a6e50acaca63fbe2abae8fcd398905b1609

  • SSDEEP

    1536:HkNg/4lRlgR+RBT3XMBCmvgT8why5At3q5LOjWD7bmmqUfpgX2GsvhM8nDTsvMpo:EN7RlI+P3XMS/hyX8oicn/XsvMKa1fZ

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 26 IoCs
  • UPX dump on OEP (original entry point) 30 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • UPX packed file 26 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 17 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 41 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1224
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1320
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1360
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\277ece483099924369f4df110b2b588c6bc2cf8757e4691cf385a3f35e82fd23.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2548
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\277ece483099924369f4df110b2b588c6bc2cf8757e4691cf385a3f35e82fd23.dll,#1
              3⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:2964
              • C:\Users\Admin\AppData\Local\Temp\f761a44.exe
                C:\Users\Admin\AppData\Local\Temp\f761a44.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:2552
              • C:\Users\Admin\AppData\Local\Temp\f761c18.exe
                C:\Users\Admin\AppData\Local\Temp\f761c18.exe
                4⤵
                • Executes dropped EXE
                PID:2292
              • C:\Users\Admin\AppData\Local\Temp\f7635df.exe
                C:\Users\Admin\AppData\Local\Temp\f7635df.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:2128
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1812

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Windows\SYSTEM.INI

            Filesize

            257B

            MD5

            ad4923cc29d6ec754af77d3f8db6b9b7

            SHA1

            f778b204dc077b1cfc4c1dac311a915fa5df45f4

            SHA256

            a462a9bf4caa4e38458136a9ebadf0298a9cd1c477fcf57a4d480b1bc0213347

            SHA512

            ae1da6bb71d6e77be4d49fab994d0eb59130270a77135e3f9bd3e1b7f470494052727b2072da74455baafdd571d9c3c8d85f500bbb4423ca2504c02a55070cf9

          • \Users\Admin\AppData\Local\Temp\f761a44.exe

            Filesize

            97KB

            MD5

            ce1c085c58810ee1e3a012f377a724a8

            SHA1

            593524eab952883b550b34244e19db4f16d04329

            SHA256

            f87b8865c86062c87d8ace170417b03e06745d7103a273d06e6d66cc37cd2822

            SHA512

            3a91bc605118c5e31367d32158fe78913c068c4cb8454c21737dc68f0b1fc77fbe1e8cdab948d5ea2871be416745732cc4b4447a06809e20ad52430928599f69

          • memory/1224-28-0x0000000001FB0000-0x0000000001FB2000-memory.dmp

            Filesize

            8KB

          • memory/2128-104-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2128-170-0x00000000009C0000-0x0000000001A7A000-memory.dmp

            Filesize

            16.7MB

          • memory/2128-102-0x00000000002B0000-0x00000000002B1000-memory.dmp

            Filesize

            4KB

          • memory/2128-209-0x00000000009C0000-0x0000000001A7A000-memory.dmp

            Filesize

            16.7MB

          • memory/2128-81-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2128-208-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2292-158-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2292-95-0x00000000002B0000-0x00000000002B1000-memory.dmp

            Filesize

            4KB

          • memory/2292-96-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2292-103-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2292-60-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2552-22-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/2552-48-0x00000000003F0000-0x00000000003F2000-memory.dmp

            Filesize

            8KB

          • memory/2552-57-0x00000000003F0000-0x00000000003F2000-memory.dmp

            Filesize

            8KB

          • memory/2552-11-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2552-153-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2552-45-0x00000000017E0000-0x00000000017E1000-memory.dmp

            Filesize

            4KB

          • memory/2552-157-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/2552-14-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/2552-119-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/2552-17-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/2552-15-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/2552-20-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/2552-62-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/2552-61-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/2552-63-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/2552-64-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/2552-65-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/2552-67-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/2552-68-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/2552-12-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/2552-16-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/2552-106-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/2552-83-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/2552-85-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/2552-86-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/2552-21-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/2552-18-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/2552-105-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/2552-19-0x0000000000660000-0x000000000171A000-memory.dmp

            Filesize

            16.7MB

          • memory/2964-76-0x00000000001F0000-0x00000000001F2000-memory.dmp

            Filesize

            8KB

          • memory/2964-79-0x00000000001B0000-0x00000000001B2000-memory.dmp

            Filesize

            8KB

          • memory/2964-58-0x0000000000210000-0x0000000000222000-memory.dmp

            Filesize

            72KB

          • memory/2964-59-0x00000000001F0000-0x00000000001F2000-memory.dmp

            Filesize

            8KB

          • memory/2964-35-0x00000000001F0000-0x00000000001F2000-memory.dmp

            Filesize

            8KB

          • memory/2964-8-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/2964-36-0x0000000000200000-0x0000000000201000-memory.dmp

            Filesize

            4KB

          • memory/2964-46-0x0000000000200000-0x0000000000201000-memory.dmp

            Filesize

            4KB

          • memory/2964-55-0x00000000001F0000-0x00000000001F2000-memory.dmp

            Filesize

            8KB

          • memory/2964-10-0x00000000001B0000-0x00000000001C2000-memory.dmp

            Filesize

            72KB

          • memory/2964-9-0x00000000001B0000-0x00000000001C2000-memory.dmp

            Filesize

            72KB