Analysis

  • max time kernel
    201s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    05/12/2022, 12:51

General

  • Target

    bd25b12c27fc1561f04f7008d6d519a9299b9ec15b3da2263dbf8650f4f1e2c4.exe

  • Size

    100KB

  • MD5

    a3a2dc57c020365faeeb0ac7d5593106

  • SHA1

    0adde255b57cfd7b24906cd0eba0bd699aba3cf6

  • SHA256

    bd25b12c27fc1561f04f7008d6d519a9299b9ec15b3da2263dbf8650f4f1e2c4

  • SHA512

    46a6bee86c952c3917dd5cbca041b54d70602da9c6ea18d79aa2f8352b75a596b21b6cbb77190ad60312e186468ba02e295104030ee4a766635dd3f81dd6dfa6

  • SSDEEP

    1536:kf3lGq9XU5syHXB5CaKM5c2i0MNFwPVa9cUkk1kDa/H0wq82/tKr/5M:Y3lGqVyHXqSc2iFKmcUZ0a7pQI/

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
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • UPX packed file 3 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 22 IoCs

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

  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 20 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1132
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:1300
        • C:\Users\Admin\AppData\Local\Temp\bd25b12c27fc1561f04f7008d6d519a9299b9ec15b3da2263dbf8650f4f1e2c4.exe
          "C:\Users\Admin\AppData\Local\Temp\bd25b12c27fc1561f04f7008d6d519a9299b9ec15b3da2263dbf8650f4f1e2c4.exe"
          2⤵
          • Modifies firewall policy service
          • UAC bypass
          • Windows security bypass
          • Disables RegEdit via registry modification
          • Windows security modification
          • Checks whether UAC is enabled
          • Enumerates connected drives
          • 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:2032
      • C:\Windows\system32\Dwm.exe
        "C:\Windows\system32\Dwm.exe"
        1⤵
          PID:1244

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • memory/2032-54-0x0000000075131000-0x0000000075133000-memory.dmp

                Filesize

                8KB

              • memory/2032-55-0x0000000001E40000-0x0000000002ECE000-memory.dmp

                Filesize

                16.6MB

              • memory/2032-56-0x0000000000400000-0x0000000000414000-memory.dmp

                Filesize

                80KB

              • memory/2032-57-0x0000000001E40000-0x0000000002ECE000-memory.dmp

                Filesize

                16.6MB

              • memory/2032-58-0x0000000000470000-0x0000000000472000-memory.dmp

                Filesize

                8KB

              • memory/2032-59-0x0000000074241000-0x0000000074243000-memory.dmp

                Filesize

                8KB

              • memory/2032-60-0x0000000004050000-0x0000000004052000-memory.dmp

                Filesize

                8KB

              • memory/2032-61-0x0000000001E40000-0x0000000002ECE000-memory.dmp

                Filesize

                16.6MB

              • memory/2032-62-0x0000000000470000-0x0000000000472000-memory.dmp

                Filesize

                8KB

              • memory/2032-63-0x0000000004050000-0x0000000004052000-memory.dmp

                Filesize

                8KB

              • memory/2032-64-0x0000000000400000-0x0000000000414000-memory.dmp

                Filesize

                80KB