Analysis

  • max time kernel
    123s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    01-07-2024 00:09

General

  • Target

    8f1586eba6894a71207b8465541e5486ff38c70cb3ef04ec748aa7fce78bf94e.exe

  • Size

    65KB

  • MD5

    37bb1404357349a46631b9c7d9a6fde2

  • SHA1

    0dfd6e77ab3430c94fe79e97a61093c85d0805d1

  • SHA256

    8f1586eba6894a71207b8465541e5486ff38c70cb3ef04ec748aa7fce78bf94e

  • SHA512

    2a213b3fbc41e4633b20b7787654df5b6b0e1ea0e248a3d63151686d7151aa43064959eadb3e05a20cf3d228409cdfc60ba967a098efd0ab7d26fc134102c07d

  • SSDEEP

    1536:QA73qRaMo1QFFoeakdTVzlTsHOJVurAExJavcql6RfE3M:6R5oiFFZaUTVzdsEurXWJl6R/

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 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 33 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1100
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1164
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1192
          • C:\Users\Admin\AppData\Local\Temp\8f1586eba6894a71207b8465541e5486ff38c70cb3ef04ec748aa7fce78bf94e.exe
            "C:\Users\Admin\AppData\Local\Temp\8f1586eba6894a71207b8465541e5486ff38c70cb3ef04ec748aa7fce78bf94e.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:2976
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1280

          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

          Impair Defenses

          4
          T1562

          Disable or Modify Tools

          3
          T1562.001

          Disable or Modify System Firewall

          1
          T1562.004

          Abuse Elevation Control Mechanism

          1
          T1548

          Bypass User Account Control

          1
          T1548.002

          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:\fkjib.pif
            Filesize

            97KB

            MD5

            56d57a655abfa3a278ac39c45d2c0614

            SHA1

            5d3a7d1b2b8f13a80271858d5d9177f4a762d6ca

            SHA256

            ee7bb3f5afa99ac1eb18b325d4db3c2c912bc20db8ffefad97fb2dcd127b28af

            SHA512

            be66813fdfd9923e44ad0337fe8250bad0f947ba70b7eeae4805778d2a0aa19a53745a2c4ca06f94e7d95db4f12393b42664939e5b38b71be9df6a274dab6347

          • memory/1100-17-0x0000000000160000-0x0000000000162000-memory.dmp
            Filesize

            8KB

          • memory/2976-36-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-94-0x0000000003630000-0x0000000003632000-memory.dmp
            Filesize

            8KB

          • memory/2976-8-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-10-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-11-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-29-0x0000000003780000-0x0000000003781000-memory.dmp
            Filesize

            4KB

          • memory/2976-9-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-31-0x0000000003630000-0x0000000003632000-memory.dmp
            Filesize

            8KB

          • memory/2976-0-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/2976-26-0x0000000003780000-0x0000000003781000-memory.dmp
            Filesize

            4KB

          • memory/2976-25-0x0000000003630000-0x0000000003632000-memory.dmp
            Filesize

            8KB

          • memory/2976-5-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-7-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-6-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-3-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-32-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-33-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-34-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-30-0x0000000003630000-0x0000000003632000-memory.dmp
            Filesize

            8KB

          • memory/2976-4-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-51-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-39-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-40-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-42-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-44-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-38-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-52-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-54-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-56-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-61-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-66-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-72-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-74-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-75-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-78-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-79-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-35-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/2976-1-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB