Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    31-12-2024 20:24

General

  • Target

    23745e0d83ba4329b7e29bcf691150cd223625acdba3a8464f29cdc1d86e4dcc.dll

  • Size

    120KB

  • MD5

    e751947f1cc4c44cfbe30351f1e88ab6

  • SHA1

    acbb382a6bfe409cf11905193433e80934dce53f

  • SHA256

    23745e0d83ba4329b7e29bcf691150cd223625acdba3a8464f29cdc1d86e4dcc

  • SHA512

    a34f33c6cd223145fb723d18115ada4980a2842cc85b4f2c996de280ac2db741a384a226a425f56b21f2ccc1800cf4c4d97485bfdd879935885f9fe9ccf8ac9d

  • SSDEEP

    3072:I0ih6tvRfkxpQAyb1l/41e2epBeLTtg0hBuAxj5n:ILyvl4pQAybr417epBqlhBT5n

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 9 IoCs
  • Sality

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

  • Sality family
  • UAC bypass 3 TTPs 3 IoCs
  • Windows security bypass 2 TTPs 18 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • Windows security modification 2 TTPs 21 IoCs
  • Checks whether UAC is enabled 1 TTPs 3 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 23 IoCs

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

  • Drops file in Windows directory 4 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 3 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1112
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1204
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1288
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\23745e0d83ba4329b7e29bcf691150cd223625acdba3a8464f29cdc1d86e4dcc.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2500
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\23745e0d83ba4329b7e29bcf691150cd223625acdba3a8464f29cdc1d86e4dcc.dll,#1
              3⤵
              • Loads dropped DLL
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:3016
              • C:\Users\Admin\AppData\Local\Temp\f76c1aa.exe
                C:\Users\Admin\AppData\Local\Temp\f76c1aa.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:2564
              • C:\Users\Admin\AppData\Local\Temp\f76c330.exe
                C:\Users\Admin\AppData\Local\Temp\f76c330.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 policy modification
                PID:2756
              • C:\Users\Admin\AppData\Local\Temp\f76e64a.exe
                C:\Users\Admin\AppData\Local\Temp\f76e64a.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:2664
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1616

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Windows\SYSTEM.INI

            Filesize

            257B

            MD5

            6ccdbf58f3bc807a7970bc1b684499bc

            SHA1

            fd3f1b23feb40f62dc8942cc662d23ed6e6efff5

            SHA256

            b804a01916ce2c68e82b79dc62d98662b5bd025f39b29e60d971fc65d7d125cf

            SHA512

            293350761cac9b592405e729ec425eb4ce0e54ba9250d284004d468854d61c061b82b11b69167971f585e074ff1d217ee5214f8d9c2bd229b5229d9fdf72759f

          • \Users\Admin\AppData\Local\Temp\f76c1aa.exe

            Filesize

            97KB

            MD5

            07d19f85e0b8b2f4aa4e58c1164163e0

            SHA1

            170d1a88a6a86520313471679ee4f5a2f7c2fc32

            SHA256

            939436aca10023493e211c2de845af339abfc27ec7ca096e62d33d9b1f69c96a

            SHA512

            1ace9fb9a716115a4572b9bb6ba57716e3e220b4e09e429951a5690eccba70d81a0dff6c24c0f3e67d36704d43b55e20e687f0de5665d835d3fe9a31a9d4645d

          • memory/1112-27-0x0000000000310000-0x0000000000312000-memory.dmp

            Filesize

            8KB

          • memory/2564-14-0x0000000000520000-0x00000000015DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2564-68-0x0000000000520000-0x00000000015DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2564-13-0x0000000000520000-0x00000000015DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2564-151-0x0000000000520000-0x00000000015DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2564-16-0x0000000000520000-0x00000000015DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2564-18-0x0000000000520000-0x00000000015DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2564-20-0x0000000000520000-0x00000000015DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2564-86-0x0000000000520000-0x00000000015DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2564-21-0x0000000000520000-0x00000000015DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2564-48-0x0000000003010000-0x0000000003011000-memory.dmp

            Filesize

            4KB

          • memory/2564-72-0x0000000000520000-0x00000000015DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2564-150-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2564-10-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2564-109-0x0000000000520000-0x00000000015DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2564-17-0x0000000000520000-0x00000000015DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2564-69-0x0000000001750000-0x0000000001752000-memory.dmp

            Filesize

            8KB

          • memory/2564-15-0x0000000000520000-0x00000000015DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2564-67-0x0000000000520000-0x00000000015DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2564-19-0x0000000000520000-0x00000000015DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2564-11-0x0000000000520000-0x00000000015DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2564-52-0x0000000001750000-0x0000000001752000-memory.dmp

            Filesize

            8KB

          • memory/2564-63-0x0000000000520000-0x00000000015DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2564-64-0x0000000000520000-0x00000000015DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2564-65-0x0000000000520000-0x00000000015DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2564-66-0x0000000000520000-0x00000000015DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2664-217-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2664-186-0x0000000000920000-0x00000000019DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2664-106-0x0000000000360000-0x0000000000362000-memory.dmp

            Filesize

            8KB

          • memory/2664-105-0x00000000003F0000-0x00000000003F1000-memory.dmp

            Filesize

            4KB

          • memory/2664-218-0x0000000000920000-0x00000000019DA000-memory.dmp

            Filesize

            16.7MB

          • memory/2664-107-0x0000000000360000-0x0000000000362000-memory.dmp

            Filesize

            8KB

          • memory/2664-85-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2664-129-0x0000000000360000-0x0000000000362000-memory.dmp

            Filesize

            8KB

          • memory/2756-100-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2756-62-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2756-219-0x0000000000970000-0x0000000001A2A000-memory.dmp

            Filesize

            16.7MB

          • memory/2756-162-0x0000000000970000-0x0000000001A2A000-memory.dmp

            Filesize

            16.7MB

          • memory/2756-98-0x00000000002B0000-0x00000000002B1000-memory.dmp

            Filesize

            4KB

          • memory/2756-161-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2756-126-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/3016-38-0x00000000002F0000-0x00000000002F1000-memory.dmp

            Filesize

            4KB

          • memory/3016-60-0x0000000000770000-0x0000000000782000-memory.dmp

            Filesize

            72KB

          • memory/3016-76-0x00000000007E0000-0x00000000007F2000-memory.dmp

            Filesize

            72KB

          • memory/3016-47-0x00000000002F0000-0x00000000002F1000-memory.dmp

            Filesize

            4KB

          • memory/3016-59-0x00000000002D0000-0x00000000002D2000-memory.dmp

            Filesize

            8KB

          • memory/3016-58-0x00000000002D0000-0x00000000002D2000-memory.dmp

            Filesize

            8KB

          • memory/3016-37-0x00000000002D0000-0x00000000002D2000-memory.dmp

            Filesize

            8KB

          • memory/3016-8-0x0000000000130000-0x0000000000142000-memory.dmp

            Filesize

            72KB

          • memory/3016-1-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/3016-71-0x00000000002D0000-0x00000000002D2000-memory.dmp

            Filesize

            8KB