Analysis

  • max time kernel
    120s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    29/02/2024, 08:51

General

  • Target

    Packed.Win32.Salpack.dll

  • Size

    120KB

  • MD5

    148ff7e65378c5bb2dccf700305467c3

  • SHA1

    0116aa783c1331ca356c32a9444d8b1d91aff586

  • SHA256

    772bc15d59c40acded6aeea0d63e081f3885dad1e3729a1dbd733c90fad8ea31

  • SHA512

    b91cdc9254207bc1e71144d173469bccbf71b8c89502b0a09efc1e461c6e140eadafd4c0d5209c5b106d8f1678c2fe5cde3c223a12cb6ea381e81d83fb99e9d4

  • SSDEEP

    1536:CFkFGprMPDdmWE2277qdwLp81FMIwd9l3PZmQuRlS26zEYQUz19zNAp+C8:CuQp12cqda8sIUlf1U7IEi5kT8

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 3 IoCs
  • Sality

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

  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 6 IoCs
  • Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality 22 IoCs
  • UPX dump on OEP (original entry point) 26 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • UPX packed file 22 IoCs

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

  • Windows security modification 2 TTPs 7 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 10 IoCs

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

  • Drops file in Windows directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 21 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\Dwm.exe
    "C:\Windows\system32\Dwm.exe"
    1⤵
      PID:1160
    • C:\Windows\system32\DllHost.exe
      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
      1⤵
        PID:1708
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1192
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\Packed.Win32.Salpack.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2492
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\Packed.Win32.Salpack.dll,#1
              3⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:2076
              • C:\Users\Admin\AppData\Local\Temp\f767790.exe
                C:\Users\Admin\AppData\Local\Temp\f767790.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:2696
              • C:\Users\Admin\AppData\Local\Temp\f767de7.exe
                C:\Users\Admin\AppData\Local\Temp\f767de7.exe
                4⤵
                • Executes dropped EXE
                PID:2752
              • C:\Users\Admin\AppData\Local\Temp\f769203.exe
                C:\Users\Admin\AppData\Local\Temp\f769203.exe
                4⤵
                • Executes dropped EXE
                PID:328
        • C:\Windows\system32\taskhost.exe
          "taskhost.exe"
          1⤵
            PID:1108

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Users\Admin\AppData\Local\Temp\f769203.exe

                  Filesize

                  21KB

                  MD5

                  960d115c8196421e618f50badccef942

                  SHA1

                  2ac2d476e5b9b09d5717ad63ab229d99c45a5f48

                  SHA256

                  663ea4f85c39a9199e4ed225831ff5cfa5abfd32fe3f4833b42366f4ac10b6e7

                  SHA512

                  997d20ba01ecf9458ab2eaa25db205f6621649bfdfe78106055b04c5fa087ac8b9790a4356de64cc20a97db0cff19c0c4cf7fa5a56973322d828b0b2eb886f85

                • \Users\Admin\AppData\Local\Temp\f767790.exe

                  Filesize

                  97KB

                  MD5

                  e2eb55a2624fc35bac6c58e82cde549b

                  SHA1

                  0c4bb103bf265522c99a6f5e2e0731ab89b000a0

                  SHA256

                  1aec34800ace7b5bd83cb9a9c0e7bd1dab931c33e243f324734708606b70c506

                  SHA512

                  c409001e8e1d3187dfc461f0446f335529dc38ec23fd6f7335ab318929e98ec3c66fe9332ee529abee58888af4856f38dbe043fdd2f5ccb46d8826a35e1759fd

                • \Users\Admin\AppData\Local\Temp\f769203.exe

                  Filesize

                  62KB

                  MD5

                  877d9e0b14f64f136a6344c898000e13

                  SHA1

                  f24e343628c20be181f196b6b83fd791210c6bd0

                  SHA256

                  c969de9d720595130e316eebf9851ec10aeaed17d799d67d199ca62bc8776b17

                  SHA512

                  d6255d4a7a6fe3d095fc256d6371158610d51bb54b28bc1fb6a52641b9a0a6fd7db8c19ecdfe6b07b43844c9a82c9cdd3d447f79f7801c02208917e47c781d99

                • memory/328-99-0x0000000000260000-0x0000000000262000-memory.dmp

                  Filesize

                  8KB

                • memory/328-149-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/328-76-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/328-101-0x0000000000270000-0x0000000000271000-memory.dmp

                  Filesize

                  4KB

                • memory/1108-16-0x0000000001C80000-0x0000000001C82000-memory.dmp

                  Filesize

                  8KB

                • memory/2076-30-0x00000000006C0000-0x00000000006C2000-memory.dmp

                  Filesize

                  8KB

                • memory/2076-8-0x0000000010000000-0x0000000010020000-memory.dmp

                  Filesize

                  128KB

                • memory/2076-10-0x00000000001A0000-0x00000000001B2000-memory.dmp

                  Filesize

                  72KB

                • memory/2076-27-0x0000000000710000-0x0000000000711000-memory.dmp

                  Filesize

                  4KB

                • memory/2076-26-0x00000000006C0000-0x00000000006C2000-memory.dmp

                  Filesize

                  8KB

                • memory/2076-77-0x00000000001A0000-0x00000000001A6000-memory.dmp

                  Filesize

                  24KB

                • memory/2076-0-0x0000000010000000-0x0000000010020000-memory.dmp

                  Filesize

                  128KB

                • memory/2076-12-0x00000000001A0000-0x00000000001B2000-memory.dmp

                  Filesize

                  72KB

                • memory/2076-32-0x0000000000710000-0x0000000000711000-memory.dmp

                  Filesize

                  4KB

                • memory/2076-42-0x0000000000C70000-0x0000000000C82000-memory.dmp

                  Filesize

                  72KB

                • memory/2076-45-0x0000000000C70000-0x0000000000C82000-memory.dmp

                  Filesize

                  72KB

                • memory/2076-72-0x00000000006C0000-0x00000000006C2000-memory.dmp

                  Filesize

                  8KB

                • memory/2696-55-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2696-64-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2696-53-0x00000000002A0000-0x00000000002A1000-memory.dmp

                  Filesize

                  4KB

                • memory/2696-52-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2696-50-0x0000000000290000-0x0000000000292000-memory.dmp

                  Filesize

                  8KB

                • memory/2696-59-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2696-60-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2696-61-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2696-62-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2696-63-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2696-13-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/2696-28-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2696-25-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2696-20-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2696-17-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2696-44-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2696-79-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2696-80-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2696-81-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2696-83-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2696-145-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2696-108-0x0000000000290000-0x0000000000292000-memory.dmp

                  Filesize

                  8KB

                • memory/2696-104-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2696-15-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2696-11-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2696-102-0x0000000000620000-0x00000000016DA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2752-96-0x0000000000360000-0x0000000000362000-memory.dmp

                  Filesize

                  8KB

                • memory/2752-93-0x00000000003F0000-0x00000000003F1000-memory.dmp

                  Filesize

                  4KB

                • memory/2752-91-0x0000000000360000-0x0000000000362000-memory.dmp

                  Filesize

                  8KB

                • memory/2752-47-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB