Analysis

  • max time kernel
    125s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    25/12/2023, 23:03

General

  • Target

    41f84fae0a5dcddd8ad774e074be3b6e.exe

  • Size

    96KB

  • MD5

    41f84fae0a5dcddd8ad774e074be3b6e

  • SHA1

    bf2833f6c7d78a98edfcf393962d4b7fd843813d

  • SHA256

    27a7c8bd61b20d9b255b4c48d2395124c16a732744c6d241bb97fbb9b3aa16ce

  • SHA512

    6dde781ceb0b9ce847e885472f93006c1ab858fab17f0e81035da1fe777734a94d06556bd8031a39614940d04a15d3bb6cb3d248f498373552f3a167a14993d5

  • SSDEEP

    1536:BDijUGK96oWWs5otxv56kVVewjAjZNAoMdLwuBuY5BivrbwGTzl07tk1uH:NAKuKvznekAXAtdL7ssSs806u

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

http://www.klkjwre9fqwieluoi.info/

http://kukutrustnet777888.info/

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
  • UPX packed file 31 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 21 IoCs

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

  • Drops autorun.inf file 1 TTPs 2 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in Program Files directory 5 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 31 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\DllHost.exe
    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
    1⤵
      PID:1544
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:1280
        • C:\Users\Admin\AppData\Local\Temp\41f84fae0a5dcddd8ad774e074be3b6e.exe
          "C:\Users\Admin\AppData\Local\Temp\41f84fae0a5dcddd8ad774e074be3b6e.exe"
          2⤵
          • Modifies firewall policy service
          • UAC bypass
          • Windows security bypass
          • Windows security modification
          • Checks whether UAC is enabled
          • Enumerates connected drives
          • Drops autorun.inf file
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          • System policy modification
          PID:1344
      • C:\Windows\system32\Dwm.exe
        "C:\Windows\system32\Dwm.exe"
        1⤵
          PID:1240
        • C:\Windows\system32\taskhost.exe
          "taskhost.exe"
          1⤵
            PID:1128

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • memory/1128-8-0x0000000000160000-0x0000000000162000-memory.dmp

                  Filesize

                  8KB

                • memory/1344-26-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-30-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-5-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-6-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-7-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-31-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-18-0x0000000003840000-0x0000000003842000-memory.dmp

                  Filesize

                  8KB

                • memory/1344-21-0x0000000004090000-0x0000000004091000-memory.dmp

                  Filesize

                  4KB

                • memory/1344-19-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-17-0x0000000004090000-0x0000000004091000-memory.dmp

                  Filesize

                  4KB

                • memory/1344-15-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-16-0x0000000003840000-0x0000000003842000-memory.dmp

                  Filesize

                  8KB

                • memory/1344-22-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-23-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-24-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-25-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-0-0x0000000000400000-0x0000000000414000-memory.dmp

                  Filesize

                  80KB

                • memory/1344-27-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-4-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-29-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-3-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-33-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-39-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-41-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-43-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-45-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-47-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-49-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-51-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-53-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-55-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-61-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-63-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-64-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-70-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB

                • memory/1344-72-0x0000000003840000-0x0000000003842000-memory.dmp

                  Filesize

                  8KB

                • memory/1344-1-0x0000000001E20000-0x0000000002EAE000-memory.dmp

                  Filesize

                  16.6MB