Analysis

  • max time kernel
    122s
  • 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, 08:50

General

  • Target

    Packed.Win32.Salpack.dll

  • Size

    120KB

  • MD5

    5324155a700251429e47c67235c2fd37

  • SHA1

    9014b9914d611b4fa6e93367bb34f32c6d950b2c

  • SHA256

    6d44abc2b493ea2cbdf249aac8b15cfbc88f2a5526b161a3fd1174ede2c96beb

  • SHA512

    ac3a4c1b1e45ec4efa17e1f876a3ad0b28f712e72affd2d5eda474bc733f5c3279a8b8fc83928e353bd3cefeeeb488ff1451b479083fcbce662f0a52c34359da

  • SSDEEP

    3072:y3QEskaP3ak0PcWMUIylagrH3O+eYjPT:QQNPKk0H0ylRrX8YjP

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 6 IoCs
  • Sality

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

  • UAC bypass 3 TTPs 2 IoCs
  • Windows security bypass 2 TTPs 12 IoCs
  • Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality 23 IoCs
  • UPX dump on OEP (original entry point) 29 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • UPX packed file 23 IoCs

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

  • Windows security modification 2 TTPs 14 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 6 IoCs

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

  • Drops file in Windows directory 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 21 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\Dwm.exe
    "C:\Windows\system32\Dwm.exe"
    1⤵
      PID:1236
    • C:\Windows\system32\DllHost.exe
      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
      1⤵
        PID:1016
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1288
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\Packed.Win32.Salpack.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1908
            • 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:2212
              • C:\Users\Admin\AppData\Local\Temp\f764827.exe
                C:\Users\Admin\AppData\Local\Temp\f764827.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:2012
              • C:\Users\Admin\AppData\Local\Temp\f765206.exe
                C:\Users\Admin\AppData\Local\Temp\f765206.exe
                4⤵
                • Executes dropped EXE
                PID:2708
              • C:\Users\Admin\AppData\Local\Temp\f7665f4.exe
                C:\Users\Admin\AppData\Local\Temp\f7665f4.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:2892
        • C:\Windows\system32\taskhost.exe
          "taskhost.exe"
          1⤵
            PID:1124

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                • C:\Windows\SYSTEM.INI

                  Filesize

                  257B

                  MD5

                  8f9441a4ea82f183767bf8da21fa52ae

                  SHA1

                  3ae302e8b65a5ed8c6fb4482eb73996c7d4a69cb

                  SHA256

                  c129e8c60ee5c35516d45312babb786c822e039308a96ecf31b38f64dad760b0

                  SHA512

                  18ce9040ab61d5b17b4ba639b62f61c91f9aeedddc9b4b59327240f333fd5fe049d0e8fc7166197e029c226a8f5715c240525036bec5cf9858ce4a77410d9ac0

                • \Users\Admin\AppData\Local\Temp\f764827.exe

                  Filesize

                  97KB

                  MD5

                  731f5d06bcf2eb611c04be404b6091e4

                  SHA1

                  de1605e9ecc15c56471a17a230352d3b3fcccd8b

                  SHA256

                  6f97bf93ddd207d4f175e49211c37ff7d875192c8850395f095d0d930c7a8457

                  SHA512

                  930382907d1403e21ec34f0dc5aa03c50558f2da31105452d885baa3c6685b90aabdcbbaf33436d6224135bf21d8c5ac9f82b84ecc0b2c203ffb0b2aa5549a9b

                • memory/1124-16-0x0000000001B80000-0x0000000001B82000-memory.dmp

                  Filesize

                  8KB

                • memory/2012-87-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2012-97-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2012-12-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2012-14-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2012-11-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/2012-15-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2012-19-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2012-22-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2012-136-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2012-135-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/2012-103-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2012-25-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2012-63-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2012-80-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2012-84-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2012-36-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2012-55-0x00000000003F0000-0x00000000003F2000-memory.dmp

                  Filesize

                  8KB

                • memory/2012-51-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2012-58-0x0000000001790000-0x0000000001791000-memory.dmp

                  Filesize

                  4KB

                • memory/2012-57-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2012-59-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2012-61-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2012-81-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2012-62-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2012-83-0x0000000000590000-0x000000000164A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2212-46-0x0000000000250000-0x0000000000262000-memory.dmp

                  Filesize

                  72KB

                • memory/2212-34-0x00000000001F0000-0x00000000001F2000-memory.dmp

                  Filesize

                  8KB

                • memory/2212-77-0x0000000000250000-0x0000000000262000-memory.dmp

                  Filesize

                  72KB

                • memory/2212-8-0x0000000000110000-0x0000000000122000-memory.dmp

                  Filesize

                  72KB

                • memory/2212-74-0x0000000000250000-0x0000000000262000-memory.dmp

                  Filesize

                  72KB

                • memory/2212-2-0x0000000010000000-0x0000000010020000-memory.dmp

                  Filesize

                  128KB

                • memory/2212-72-0x00000000001F0000-0x00000000001F2000-memory.dmp

                  Filesize

                  8KB

                • memory/2212-37-0x0000000000200000-0x0000000000201000-memory.dmp

                  Filesize

                  4KB

                • memory/2212-10-0x0000000000110000-0x0000000000122000-memory.dmp

                  Filesize

                  72KB

                • memory/2212-26-0x00000000001F0000-0x00000000001F2000-memory.dmp

                  Filesize

                  8KB

                • memory/2212-28-0x0000000000200000-0x0000000000201000-memory.dmp

                  Filesize

                  4KB

                • memory/2212-78-0x0000000000110000-0x0000000000112000-memory.dmp

                  Filesize

                  8KB

                • memory/2708-47-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/2708-98-0x00000000002B0000-0x00000000002B1000-memory.dmp

                  Filesize

                  4KB

                • memory/2708-134-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/2708-96-0x0000000000260000-0x0000000000262000-memory.dmp

                  Filesize

                  8KB

                • memory/2892-109-0x00000000003F0000-0x00000000003F1000-memory.dmp

                  Filesize

                  4KB

                • memory/2892-106-0x00000000003E0000-0x00000000003E2000-memory.dmp

                  Filesize

                  8KB

                • memory/2892-138-0x0000000000910000-0x00000000019CA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2892-79-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/2892-145-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/2892-146-0x0000000000910000-0x00000000019CA000-memory.dmp

                  Filesize

                  16.7MB