Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    17/04/2024, 22:44

General

  • Target

    6d41d7b302f11320e6f3eb3a251bcf1e4d3c0a06546b09359324679e61ae1b0a.dll

  • Size

    120KB

  • MD5

    9cb3cb98d9b06242e7ff8ebac0653c6a

  • SHA1

    b14463dd15e022a489e22cb77a2e09b7e19bed8b

  • SHA256

    6d41d7b302f11320e6f3eb3a251bcf1e4d3c0a06546b09359324679e61ae1b0a

  • SHA512

    3e567a491a9bc970ae67752640f6b7eef39c9838e4adf9164da9ede65925c2f7987a12b05a6a2b47f8eb06c2a4ada9f09cc156d4b08de0b4f2e2c166743d62af

  • SSDEEP

    3072:UD/nozXJJolnEUgbl7BHGz6S5CdrADNLrqQ1V3q34poP:a/m5JolEFGEeLrqQj/

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 14 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:1244
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1308
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1352
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\6d41d7b302f11320e6f3eb3a251bcf1e4d3c0a06546b09359324679e61ae1b0a.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2372
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\6d41d7b302f11320e6f3eb3a251bcf1e4d3c0a06546b09359324679e61ae1b0a.dll,#1
              3⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:936
              • C:\Users\Admin\AppData\Local\Temp\f760020.exe
                C:\Users\Admin\AppData\Local\Temp\f760020.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:2896
              • C:\Users\Admin\AppData\Local\Temp\f7604e1.exe
                C:\Users\Admin\AppData\Local\Temp\f7604e1.exe
                4⤵
                • Executes dropped EXE
                PID:2572
              • C:\Users\Admin\AppData\Local\Temp\f761bf9.exe
                C:\Users\Admin\AppData\Local\Temp\f761bf9.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:1976
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:632

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                • C:\Windows\SYSTEM.INI

                  Filesize

                  257B

                  MD5

                  d531e0e2a53e8cdcc2dccc47ddf59a46

                  SHA1

                  049e60446370f726fe033a3a81d640d22c096a2e

                  SHA256

                  4611bef9d26a0a36068af7a455c7716d4e01ca2a2f358598ec5b840ca35b8df9

                  SHA512

                  da825745b045f6ac1f7ed04b81039f3c872eae8797048e41a3bd068a7f5bdca12373ea0c5e1c02b1519fcf6f700abae90aee817c7c0611c241cc617f827ca02c

                • \Users\Admin\AppData\Local\Temp\f760020.exe

                  Filesize

                  97KB

                  MD5

                  ea5254f3ede87d3764f7f2ecb4c3a919

                  SHA1

                  c4fda3f4ac8d70cf86aacfbe0d20d4d969f41bd0

                  SHA256

                  db3581043ad48f119eff7eb723141665e79b7a4acc8e7ca2843550a60e41ac0c

                  SHA512

                  4633dd938a1cc76659d1f51dc84d7cc5e73ea6b22eb3a71df21353760f15c647404825cbdf53e1ab29870bc8c7c3f5937d7eb5902eb70c38dce8e3ee5196cc4d

                • memory/936-26-0x0000000000230000-0x0000000000232000-memory.dmp

                  Filesize

                  8KB

                • memory/936-10-0x0000000000200000-0x0000000000212000-memory.dmp

                  Filesize

                  72KB

                • memory/936-31-0x0000000000230000-0x0000000000232000-memory.dmp

                  Filesize

                  8KB

                • memory/936-75-0x0000000000200000-0x0000000000202000-memory.dmp

                  Filesize

                  8KB

                • memory/936-70-0x0000000000230000-0x0000000000232000-memory.dmp

                  Filesize

                  8KB

                • memory/936-1-0x0000000010000000-0x0000000010020000-memory.dmp

                  Filesize

                  128KB

                • memory/936-32-0x0000000000240000-0x0000000000241000-memory.dmp

                  Filesize

                  4KB

                • memory/936-27-0x0000000000240000-0x0000000000241000-memory.dmp

                  Filesize

                  4KB

                • memory/1244-15-0x0000000001FA0000-0x0000000001FA2000-memory.dmp

                  Filesize

                  8KB

                • memory/1976-144-0x0000000000A60000-0x0000000001B1A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/1976-95-0x0000000000360000-0x0000000000362000-memory.dmp

                  Filesize

                  8KB

                • memory/1976-98-0x0000000000360000-0x0000000000362000-memory.dmp

                  Filesize

                  8KB

                • memory/1976-97-0x00000000003B0000-0x00000000003B1000-memory.dmp

                  Filesize

                  4KB

                • memory/1976-184-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/1976-185-0x0000000000A60000-0x0000000001B1A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/1976-74-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/2572-90-0x00000000002B0000-0x00000000002B1000-memory.dmp

                  Filesize

                  4KB

                • memory/2572-44-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/2572-92-0x0000000000260000-0x0000000000262000-memory.dmp

                  Filesize

                  8KB

                • memory/2572-89-0x0000000000260000-0x0000000000262000-memory.dmp

                  Filesize

                  8KB

                • memory/2896-79-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2896-55-0x00000000017E0000-0x00000000017E2000-memory.dmp

                  Filesize

                  8KB

                • memory/2896-58-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2896-59-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2896-60-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2896-62-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2896-56-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2896-41-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2896-29-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2896-76-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2896-77-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2896-46-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2896-81-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2896-57-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2896-25-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2896-53-0x00000000017F0000-0x00000000017F1000-memory.dmp

                  Filesize

                  4KB

                • memory/2896-22-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2896-19-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2896-16-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2896-96-0x00000000017E0000-0x00000000017E2000-memory.dmp

                  Filesize

                  8KB

                • memory/2896-99-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2896-101-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2896-103-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2896-140-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2896-14-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2896-11-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/2896-9-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2896-13-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB