Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    20-12-2024 02:52

General

  • Target

    a431de21821a949a45b181377da932de0d221de09352e0d3da22dc4f877aaff4N.dll

  • Size

    120KB

  • MD5

    4f24bb30ed710aa3d264f0ca38865320

  • SHA1

    d89a595ca676d4540bf549b87eb4e2b57659a934

  • SHA256

    a431de21821a949a45b181377da932de0d221de09352e0d3da22dc4f877aaff4

  • SHA512

    d898f23f19d996019834ed2c5db58e164bb81082b2e44384ba4188a10a77d5e11d0f44bf4e8b5a116f82407def7244b9023824880ca1aa93629698b89a6e482e

  • SSDEEP

    1536:6dFgWvOtSvETzpwa/CcbkKdYoDyAnHJlukatm5vs5QOngzIk9G5/rUcc7CYsw7kf:6dFxZPcb5yAHJl/U5QgOIzWtM

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 3 TTPs 6 IoCs
  • Sality

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

  • Sality family
  • UAC bypass 3 TTPs 2 IoCs
  • Windows security bypass 2 TTPs 12 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • Windows security modification 2 TTPs 14 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 15 IoCs

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

  • UPX packed file 25 IoCs

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

  • Drops file in Windows directory 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1116
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1176
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1204
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\a431de21821a949a45b181377da932de0d221de09352e0d3da22dc4f877aaff4N.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2712
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\a431de21821a949a45b181377da932de0d221de09352e0d3da22dc4f877aaff4N.dll,#1
              3⤵
              • Loads dropped DLL
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:3044
              • C:\Users\Admin\AppData\Local\Temp\f76a016.exe
                C:\Users\Admin\AppData\Local\Temp\f76a016.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
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                • System policy modification
                PID:2912
              • C:\Users\Admin\AppData\Local\Temp\f76a61f.exe
                C:\Users\Admin\AppData\Local\Temp\f76a61f.exe
                4⤵
                • Executes dropped EXE
                PID:2864
              • C:\Users\Admin\AppData\Local\Temp\f76bbc1.exe
                C:\Users\Admin\AppData\Local\Temp\f76bbc1.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
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                • System policy modification
                PID:2764
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1500

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Windows\SYSTEM.INI

            Filesize

            257B

            MD5

            47edd3e28650fc0eb6e41f9d04c99b01

            SHA1

            8d3d78bdfcf1519e8f466df24b2c6f6a17bac33b

            SHA256

            92bcd38c606c99fba945190cfc93845e1b0848fddc65c4835fd12b0810ecdfb6

            SHA512

            e93e52792f80f416c51c34c794372d1e5ff5c64c519452e0cd4033982fb7f6ae62fb0e5422335e674246e5ac56aa6ea9cf68403f7da34eb2639495b0e6e5eda8

          • \Users\Admin\AppData\Local\Temp\f76a016.exe

            Filesize

            97KB

            MD5

            0c629bf98a1ba0cba67c3e512ccedd5e

            SHA1

            b38f1f61d5b96a3701a5b41343136e91cf65d10f

            SHA256

            74f90c6cd61de64ab45de192eecb65a509d01ce0652174a68b8c71a4c7dfbbe2

            SHA512

            508b9f32eb2bb77e4fe0590004b143e3b384e1e2cef0e64d403b4b0eccbff9bdbb0603a75053345f194ba22995b128c658c98c91d720cd496144e6ca55c5a0a7

          • memory/1116-29-0x0000000001FB0000-0x0000000001FB2000-memory.dmp

            Filesize

            8KB

          • memory/2764-155-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2764-171-0x0000000000940000-0x00000000019FA000-memory.dmp

            Filesize

            16.7MB

          • memory/2764-206-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2764-108-0x00000000002B0000-0x00000000002B1000-memory.dmp

            Filesize

            4KB

          • memory/2764-107-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2764-205-0x0000000000940000-0x00000000019FA000-memory.dmp

            Filesize

            16.7MB

          • memory/2864-159-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2864-132-0x0000000000220000-0x0000000000222000-memory.dmp

            Filesize

            8KB

          • memory/2864-98-0x0000000000220000-0x0000000000222000-memory.dmp

            Filesize

            8KB

          • memory/2864-100-0x0000000000220000-0x0000000000222000-memory.dmp

            Filesize

            8KB

          • memory/2864-103-0x0000000000230000-0x0000000000231000-memory.dmp

            Filesize

            4KB

          • memory/2912-16-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2912-22-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2912-11-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2912-62-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2912-63-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2912-50-0x0000000000330000-0x0000000000332000-memory.dmp

            Filesize

            8KB

          • memory/2912-14-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2912-17-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2912-154-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2912-153-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2912-15-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2912-20-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2912-64-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2912-66-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2912-65-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2912-68-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2912-69-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2912-23-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2912-80-0x0000000000330000-0x0000000000332000-memory.dmp

            Filesize

            8KB

          • memory/2912-47-0x00000000005A0000-0x00000000005A1000-memory.dmp

            Filesize

            4KB

          • memory/2912-83-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2912-86-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2912-87-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2912-89-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2912-90-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2912-18-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2912-19-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/2912-21-0x00000000006B0000-0x000000000176A000-memory.dmp

            Filesize

            16.7MB

          • memory/3044-77-0x00000000001A0000-0x00000000001A2000-memory.dmp

            Filesize

            8KB

          • memory/3044-81-0x0000000000170000-0x0000000000172000-memory.dmp

            Filesize

            8KB

          • memory/3044-53-0x0000000000210000-0x0000000000222000-memory.dmp

            Filesize

            72KB

          • memory/3044-36-0x00000000001A0000-0x00000000001A2000-memory.dmp

            Filesize

            8KB

          • memory/3044-37-0x00000000001B0000-0x00000000001B1000-memory.dmp

            Filesize

            4KB

          • memory/3044-59-0x0000000000210000-0x0000000000222000-memory.dmp

            Filesize

            72KB

          • memory/3044-60-0x00000000001A0000-0x00000000001A2000-memory.dmp

            Filesize

            8KB

          • memory/3044-4-0x0000000000170000-0x0000000000182000-memory.dmp

            Filesize

            72KB

          • memory/3044-1-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/3044-9-0x0000000000170000-0x0000000000182000-memory.dmp

            Filesize

            72KB

          • memory/3044-40-0x00000000001B0000-0x00000000001B1000-memory.dmp

            Filesize

            4KB