Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    05-02-2025 14:31

General

  • Target

    7a3f03dc79b956eb6218d2b9743aa20b946a232804df4723f14659c8279f314dN.dll

  • Size

    120KB

  • MD5

    05dc3af1fd1b471d6170a732c2759ee0

  • SHA1

    ea5c938bdce345ae511842babe9a4db1ec1c990a

  • SHA256

    7a3f03dc79b956eb6218d2b9743aa20b946a232804df4723f14659c8279f314d

  • SHA512

    cd7c9b7dc8254bdc970f98b4bfc17fbf811af223c75e958126682d4f1359606c97d49a35732a5c255a9ab45d32fd7f6b6691dac82559edaf4f424134d95d1118

  • SSDEEP

    3072:op2c7tfPPHele+UPuZGR8AAzcsQkFHOoz:S2c71fjCZJAAzkk

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 13 IoCs

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

  • UPX packed file 24 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:1100
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1156
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1196
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\7a3f03dc79b956eb6218d2b9743aa20b946a232804df4723f14659c8279f314dN.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2980
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\7a3f03dc79b956eb6218d2b9743aa20b946a232804df4723f14659c8279f314dN.dll,#1
              3⤵
              • Loads dropped DLL
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:2600
              • C:\Users\Admin\AppData\Local\Temp\f76f6fc.exe
                C:\Users\Admin\AppData\Local\Temp\f76f6fc.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:2616
              • C:\Users\Admin\AppData\Local\Temp\f76f8a1.exe
                C:\Users\Admin\AppData\Local\Temp\f76f8a1.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:2056
              • C:\Users\Admin\AppData\Local\Temp\f7712a6.exe
                C:\Users\Admin\AppData\Local\Temp\f7712a6.exe
                4⤵
                • Executes dropped EXE
                PID:2816
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1292

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Windows\SYSTEM.INI

            Filesize

            257B

            MD5

            1c9107077923c72295116a49d2a85c39

            SHA1

            ac1a0384306e1a13a577e1695d94203abe8e9043

            SHA256

            9f930002cb6bafce3db1c718bc1cd665a6d51c5befdd343b97987cd75b59c6db

            SHA512

            676fd95d21ce5680439cd6b4043e47ffe42efadbd83ff48c2a86f2260687cef728ef2b154030c7f7adea13d8f7b0b6b8405564972fe25f82f6907caf87048a02

          • \Users\Admin\AppData\Local\Temp\f76f6fc.exe

            Filesize

            97KB

            MD5

            ff3d624400ebfcfa51b896559f33b6d6

            SHA1

            812b72a0d3e267c0d44159482b25509122e404ae

            SHA256

            ce8128fcde06104d86c65fc17d09146b9d8fea9698fd051f6257eab10c586d4d

            SHA512

            6eb5413720c58d00f5aa3825531974785ceef73ea74efe5b53271a94f0e2acaafa27810064c7f741f5d9e89cd678f69af54b30c2bcac8c6f5445511b0c972d5b

          • memory/1100-28-0x0000000001FD0000-0x0000000001FD2000-memory.dmp

            Filesize

            8KB

          • memory/2056-61-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2056-192-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2056-191-0x00000000009C0000-0x0000000001A7A000-memory.dmp

            Filesize

            16.7MB

          • memory/2056-164-0x00000000009C0000-0x0000000001A7A000-memory.dmp

            Filesize

            16.7MB

          • memory/2056-126-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2056-98-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2056-100-0x00000000002B0000-0x00000000002B1000-memory.dmp

            Filesize

            4KB

          • memory/2056-101-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2600-37-0x0000000000230000-0x0000000000231000-memory.dmp

            Filesize

            4KB

          • memory/2600-58-0x0000000000240000-0x0000000000252000-memory.dmp

            Filesize

            72KB

          • memory/2600-45-0x0000000000230000-0x0000000000231000-memory.dmp

            Filesize

            4KB

          • memory/2600-9-0x0000000000130000-0x0000000000142000-memory.dmp

            Filesize

            72KB

          • memory/2600-1-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/2600-36-0x00000000001A0000-0x00000000001A2000-memory.dmp

            Filesize

            8KB

          • memory/2600-8-0x0000000000130000-0x0000000000142000-memory.dmp

            Filesize

            72KB

          • memory/2600-78-0x00000000002E0000-0x00000000002F2000-memory.dmp

            Filesize

            72KB

          • memory/2600-82-0x00000000001A0000-0x00000000001A2000-memory.dmp

            Filesize

            8KB

          • memory/2600-83-0x0000000000130000-0x0000000000132000-memory.dmp

            Filesize

            8KB

          • memory/2600-77-0x00000000002E0000-0x00000000002F2000-memory.dmp

            Filesize

            72KB

          • memory/2600-52-0x0000000000240000-0x0000000000252000-memory.dmp

            Filesize

            72KB

          • memory/2600-59-0x00000000001A0000-0x00000000001A2000-memory.dmp

            Filesize

            8KB

          • memory/2616-84-0x0000000000620000-0x00000000016DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2616-87-0x0000000000620000-0x00000000016DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2616-62-0x0000000000620000-0x00000000016DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2616-63-0x0000000000620000-0x00000000016DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2616-64-0x0000000000620000-0x00000000016DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2616-66-0x0000000000620000-0x00000000016DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2616-65-0x0000000000620000-0x00000000016DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2616-21-0x0000000000620000-0x00000000016DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2616-15-0x0000000000620000-0x00000000016DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2616-17-0x0000000000620000-0x00000000016DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2616-48-0x00000000003F0000-0x00000000003F2000-memory.dmp

            Filesize

            8KB

          • memory/2616-18-0x0000000000620000-0x00000000016DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2616-76-0x00000000003F0000-0x00000000003F2000-memory.dmp

            Filesize

            8KB

          • memory/2616-85-0x0000000000620000-0x00000000016DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2616-86-0x0000000000620000-0x00000000016DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2616-22-0x0000000000620000-0x00000000016DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2616-89-0x0000000000620000-0x00000000016DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2616-46-0x0000000003D20000-0x0000000003D21000-memory.dmp

            Filesize

            4KB

          • memory/2616-19-0x0000000000620000-0x00000000016DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2616-16-0x0000000000620000-0x00000000016DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2616-11-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2616-49-0x00000000003F0000-0x00000000003F2000-memory.dmp

            Filesize

            8KB

          • memory/2616-110-0x0000000000620000-0x00000000016DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2616-12-0x0000000000620000-0x00000000016DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2616-20-0x0000000000620000-0x00000000016DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2616-155-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2616-156-0x0000000000620000-0x00000000016DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2616-14-0x0000000000620000-0x00000000016DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2816-136-0x0000000000220000-0x0000000000222000-memory.dmp

            Filesize

            8KB

          • memory/2816-107-0x0000000000230000-0x0000000000231000-memory.dmp

            Filesize

            4KB

          • memory/2816-106-0x0000000000220000-0x0000000000222000-memory.dmp

            Filesize

            8KB

          • memory/2816-196-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB