Analysis

  • max time kernel
    123s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    29-03-2024 01:58

General

  • Target

    befb05688d6cda129cdb213bbc0fbbae0dc33eed8c13049a98118b3283c52acf.exe

  • Size

    65KB

  • MD5

    fb30889351ee6ef2c4a717e7799e00bf

  • SHA1

    3113809823e1d099e42c9991aa9383d736562fee

  • SHA256

    befb05688d6cda129cdb213bbc0fbbae0dc33eed8c13049a98118b3283c52acf

  • SHA512

    4057ffe33f2197cb1f220ceb5b1ba578e848a6346900d41887888ec89f696494019e1688d0124240dbf28f7dce69bdf192806f1f3f5460aa7837c48044324894

  • SSDEEP

    1536:3KHQbHo/nVGU9Lwl2O8zxIeUTLP1emUr3gDVfV0L94V:6HBGU9A2hx9UTLP8mhj

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 31 IoCs
  • UPX dump on OEP (original entry point) 31 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 2 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 32 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1060
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1164
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1188
          • C:\Users\Admin\AppData\Local\Temp\befb05688d6cda129cdb213bbc0fbbae0dc33eed8c13049a98118b3283c52acf.exe
            "C:\Users\Admin\AppData\Local\Temp\befb05688d6cda129cdb213bbc0fbbae0dc33eed8c13049a98118b3283c52acf.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:2232
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:2260

          Network

          MITRE ATT&CK Matrix ATT&CK v13

          Initial Access

          Replication Through Removable Media

          1
          T1091

          Persistence

          Create or Modify System Process

          1
          T1543

          Windows Service

          1
          T1543.003

          Privilege Escalation

          Create or Modify System Process

          1
          T1543

          Windows Service

          1
          T1543.003

          Abuse Elevation Control Mechanism

          1
          T1548

          Bypass User Account Control

          1
          T1548.002

          Defense Evasion

          Modify Registry

          5
          T1112

          Abuse Elevation Control Mechanism

          1
          T1548

          Bypass User Account Control

          1
          T1548.002

          Impair Defenses

          3
          T1562

          Disable or Modify Tools

          3
          T1562.001

          Discovery

          System Information Discovery

          3
          T1082

          Query Registry

          1
          T1012

          Peripheral Device Discovery

          1
          T1120

          Lateral Movement

          Replication Through Removable Media

          1
          T1091

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • F:\cvjh.exe
            Filesize

            97KB

            MD5

            61a2f96d285b44fe6aec57fc79b3aed2

            SHA1

            3f339c2ae959cae63a3cf2daec7f39f907e4dbd0

            SHA256

            84c89a1259140af06dece8f4b57c314a2d3e895adce83e8ed660fab99cf995b0

            SHA512

            d0b879071b1e64b5eeb247f60802153ccddefdbae2da2ae317e46e55520c4b1bc329d8781a858ef34dc89b1be25c765e8b844592aae129bf11ca878f09d47d6e

          • memory/1060-5-0x0000000000210000-0x0000000000212000-memory.dmp
            Filesize

            8KB

          • memory/2232-32-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-80-0x0000000003030000-0x0000000003032000-memory.dmp
            Filesize

            8KB

          • memory/2232-4-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-34-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-9-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-12-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-16-0x0000000003030000-0x0000000003032000-memory.dmp
            Filesize

            8KB

          • memory/2232-19-0x0000000003850000-0x0000000003851000-memory.dmp
            Filesize

            4KB

          • memory/2232-17-0x0000000003850000-0x0000000003851000-memory.dmp
            Filesize

            4KB

          • memory/2232-20-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-15-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-21-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-22-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-25-0x0000000003030000-0x0000000003032000-memory.dmp
            Filesize

            8KB

          • memory/2232-30-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-31-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-0-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/2232-33-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-7-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-3-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-38-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-37-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-40-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-45-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-47-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-49-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-51-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-55-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-59-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-61-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-63-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-65-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-67-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-72-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-74-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-36-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB

          • memory/2232-1-0x00000000006D0000-0x000000000178A000-memory.dmp
            Filesize

            16.7MB