Analysis

  • max time kernel
    119s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-12-2024 02:04

General

  • Target

    b5ecffa1bda1947a2d728aeaa4b9335f0056aaabfe882bac211f51233892cdcbN.dll

  • Size

    120KB

  • MD5

    0f2603bdf67ebc7dad04a01f8f511750

  • SHA1

    04233c044253552f396113d364381c902c2a008b

  • SHA256

    b5ecffa1bda1947a2d728aeaa4b9335f0056aaabfe882bac211f51233892cdcb

  • SHA512

    8a3ba801613bde4fa58408be1218f88fb6d0143f06e467ab11c1e7ead74e756643aa8ef6dee36a91989b762beb685359ed3e40a0851ded0d9ad289176a994e9b

  • SSDEEP

    3072:Wf4mCovkq3f2xGxFl6QrDz5GFrV7u5qA9bqmnEMq4h:gt7p20xjnPqrVq

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 22 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 46 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1104
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1164
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1196
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\b5ecffa1bda1947a2d728aeaa4b9335f0056aaabfe882bac211f51233892cdcbN.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1732
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\b5ecffa1bda1947a2d728aeaa4b9335f0056aaabfe882bac211f51233892cdcbN.dll,#1
              3⤵
              • Loads dropped DLL
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:1996
              • C:\Users\Admin\AppData\Local\Temp\f76a248.exe
                C:\Users\Admin\AppData\Local\Temp\f76a248.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:1780
              • C:\Users\Admin\AppData\Local\Temp\f76a39f.exe
                C:\Users\Admin\AppData\Local\Temp\f76a39f.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 Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                • System policy modification
                PID:2896
              • C:\Users\Admin\AppData\Local\Temp\f76be31.exe
                C:\Users\Admin\AppData\Local\Temp\f76be31.exe
                4⤵
                • Executes dropped EXE
                PID:2624
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1672

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\f76a248.exe

            Filesize

            97KB

            MD5

            95f96d5e9cca53c557cb7964f49eaf01

            SHA1

            cfb83057a128f3c8ffc4ae1379d63c3a49f979b9

            SHA256

            dc4b0a58b7a9aa9e1c41335c6acbb5ea6785f101751d1cded535cee9844683a6

            SHA512

            96543014176e436d816bd47892b5d5d90a051af411b53c044c92ab643a6119d354a0cf5a1246d04010c5795cd9a47344454894d411fc8a60885bf4b11cbeda0b

          • C:\Windows\SYSTEM.INI

            Filesize

            257B

            MD5

            46d5d4bd0479552de1ce063a3856d1ec

            SHA1

            6d9c3c0bf35e7c6d15d606ba657543b8576ef4bc

            SHA256

            5325645a3e4fa5f830b037c94636abc04e1eeb1e6f8241c681fae6651285819b

            SHA512

            a3c916eb70005448347ecea8c563adeb4d938f67f06264288123c1a0e9b6549a8d099bf0cd49399df080b2733962d6ed88ce6b8fcc01bbde1d94997ff3833bdd

          • memory/1104-27-0x0000000001F10000-0x0000000001F12000-memory.dmp

            Filesize

            8KB

          • memory/1780-61-0x0000000000960000-0x0000000001A1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1780-13-0x0000000000960000-0x0000000001A1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1780-62-0x0000000000960000-0x0000000001A1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1780-47-0x00000000003F0000-0x00000000003F2000-memory.dmp

            Filesize

            8KB

          • memory/1780-63-0x0000000000960000-0x0000000001A1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1780-17-0x0000000000960000-0x0000000001A1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1780-155-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/1780-11-0x0000000000960000-0x0000000001A1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1780-18-0x0000000000960000-0x0000000001A1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1780-14-0x0000000000960000-0x0000000001A1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1780-156-0x0000000000960000-0x0000000001A1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1780-58-0x00000000003F0000-0x00000000003F2000-memory.dmp

            Filesize

            8KB

          • memory/1780-87-0x0000000000960000-0x0000000001A1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1780-19-0x0000000000960000-0x0000000001A1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1780-83-0x00000000003F0000-0x00000000003F2000-memory.dmp

            Filesize

            8KB

          • memory/1780-64-0x0000000000960000-0x0000000001A1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1780-81-0x0000000000960000-0x0000000001A1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1780-20-0x0000000000960000-0x0000000001A1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1780-15-0x0000000000960000-0x0000000001A1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1780-82-0x0000000000960000-0x0000000001A1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1780-67-0x0000000000960000-0x0000000001A1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1780-66-0x0000000000960000-0x0000000001A1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1780-60-0x0000000000960000-0x0000000001A1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1780-16-0x0000000000960000-0x0000000001A1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1780-21-0x0000000000960000-0x0000000001A1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1780-46-0x0000000000560000-0x0000000000561000-memory.dmp

            Filesize

            4KB

          • memory/1996-56-0x0000000000360000-0x0000000000362000-memory.dmp

            Filesize

            8KB

          • memory/1996-1-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/1996-4-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/1996-36-0x0000000000370000-0x0000000000371000-memory.dmp

            Filesize

            4KB

          • memory/1996-78-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/1996-75-0x0000000000360000-0x0000000000362000-memory.dmp

            Filesize

            8KB

          • memory/1996-9-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/1996-38-0x0000000000370000-0x0000000000371000-memory.dmp

            Filesize

            4KB

          • memory/1996-54-0x0000000000360000-0x0000000000362000-memory.dmp

            Filesize

            8KB

          • memory/1996-35-0x0000000000360000-0x0000000000362000-memory.dmp

            Filesize

            8KB

          • memory/1996-59-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2624-105-0x00000000001B0000-0x00000000001B2000-memory.dmp

            Filesize

            8KB

          • memory/2624-102-0x0000000000240000-0x0000000000241000-memory.dmp

            Filesize

            4KB

          • memory/2624-103-0x00000000001B0000-0x00000000001B2000-memory.dmp

            Filesize

            8KB

          • memory/2624-80-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2624-198-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2896-104-0x0000000000360000-0x0000000000362000-memory.dmp

            Filesize

            8KB

          • memory/2896-97-0x0000000000370000-0x0000000000371000-memory.dmp

            Filesize

            4KB

          • memory/2896-134-0x0000000000360000-0x0000000000362000-memory.dmp

            Filesize

            8KB

          • memory/2896-106-0x0000000000360000-0x0000000000362000-memory.dmp

            Filesize

            8KB

          • memory/2896-194-0x0000000000930000-0x00000000019EA000-memory.dmp

            Filesize

            16.7MB

          • memory/2896-193-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2896-57-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2896-199-0x0000000000930000-0x00000000019EA000-memory.dmp

            Filesize

            16.7MB