Analysis

  • max time kernel
    124s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    22-05-2024 00:04

General

  • Target

    6537f787aea80092922ddf924207b023fc9c30c26463f0eb4c70d005497aaa6a.exe

  • Size

    233KB

  • MD5

    6c10169337bfafca6d02c6dcb632b586

  • SHA1

    9c31dc63d44eabf52882db7d381b53b523a9d7b5

  • SHA256

    6537f787aea80092922ddf924207b023fc9c30c26463f0eb4c70d005497aaa6a

  • SHA512

    3131b171c61d284f616a72d6fad8b88240016832f956859b6c0f3b57174c6f694b2d247618861d56b5458a0dd3a4fa43a65942e8d4871d5e8738dea28b799c7d

  • SSDEEP

    3072:F4eViA4NiAXF27+YoFnWyJYHAUMtqQvYvkqg8GB9p:aDA42+BWUbtTvYvkqX+9p

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
  • Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality 29 IoCs
  • UPX dump on OEP (original entry point) 28 IoCs
  • UPX packed file 28 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).

  • Modifies registry class 20 IoCs
  • Suspicious behavior: EnumeratesProcesses 13 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 32 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1056
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1132
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1176
          • C:\Users\Admin\AppData\Local\Temp\6537f787aea80092922ddf924207b023fc9c30c26463f0eb4c70d005497aaa6a.exe
            "C:\Users\Admin\AppData\Local\Temp\6537f787aea80092922ddf924207b023fc9c30c26463f0eb4c70d005497aaa6a.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
            • Modifies registry class
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            • System policy modification
            PID:2156
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1580

          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:\dhgw.pif
            Filesize

            100KB

            MD5

            0a5cd86853cba9136caa7c9dc4159765

            SHA1

            3d97233e0ca0ed9d222040acb42b339ddccda2ca

            SHA256

            f28187ce1fb055e23c1f3837c65c6bcc8bf2f47bafe00b71ff69325b0518a239

            SHA512

            eb9e1c485282679470215e77a8da34b3b28c683eeface036e730f75c7d46b392a675f44f58445cb8e2f39bfd55590780c4a721860852c8fac6c1769032eb3049

          • memory/1056-18-0x0000000000220000-0x0000000000222000-memory.dmp
            Filesize

            8KB

          • memory/2156-32-0x0000000006E10000-0x0000000006E12000-memory.dmp
            Filesize

            8KB

          • memory/2156-88-0x0000000005590000-0x0000000005592000-memory.dmp
            Filesize

            8KB

          • memory/2156-14-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-9-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-7-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-10-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-16-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-30-0x0000000005590000-0x0000000005592000-memory.dmp
            Filesize

            8KB

          • memory/2156-0-0x0000000000400000-0x000000000043E000-memory.dmp
            Filesize

            248KB

          • memory/2156-29-0x00000000055A0000-0x00000000055A1000-memory.dmp
            Filesize

            4KB

          • memory/2156-27-0x00000000055A0000-0x00000000055A1000-memory.dmp
            Filesize

            4KB

          • memory/2156-26-0x0000000005590000-0x0000000005592000-memory.dmp
            Filesize

            8KB

          • memory/2156-1-0x00000000002B0000-0x00000000002EE000-memory.dmp
            Filesize

            248KB

          • memory/2156-17-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-15-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-13-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-12-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-8-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-31-0x0000000005590000-0x0000000005592000-memory.dmp
            Filesize

            8KB

          • memory/2156-11-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-43-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-35-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-39-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-40-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-41-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-34-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-51-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-53-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-55-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-56-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-59-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-60-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-63-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-65-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-67-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-69-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-33-0x00000000023B0000-0x000000000343E000-memory.dmp
            Filesize

            16.6MB

          • memory/2156-2-0x00000000002B0000-0x00000000002EE000-memory.dmp
            Filesize

            248KB