Analysis

  • max time kernel
    184s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    30/10/2022, 21:42

General

  • Target

    efb2150b7d17d03889a1ae7771619867a1314a92875329d68d419fe267e9cbcc.exe

  • Size

    189KB

  • MD5

    a16cf6e2cefc42c846d0bd855c09c0cc

  • SHA1

    c3eb0af83f54c1e3a431df1eb46ec97ec1d0ab0d

  • SHA256

    efb2150b7d17d03889a1ae7771619867a1314a92875329d68d419fe267e9cbcc

  • SHA512

    137bad2bf66cf8e41c521ab5a8a87aef1f28479d605b2285c539b2c3353c83b4b194de1af813994a84504e162d563dc0bffc4fa60359b54a0ca105b517cebd74

  • SSDEEP

    3072:3cmVWY5ltbmP3Q7ysD/u9wvPUPdj0qthhBsNx1Ah/qvlEm0Lsp9drIAJeiAXECjH:smAIf69aMPdj083U3nvumw+TIB+

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 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
  • Executes dropped EXE 1 IoCs
  • UPX packed file 5 IoCs

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

  • Deletes itself 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Windows security modification 2 TTPs 14 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 22 IoCs

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

  • Drops autorun.inf file 1 TTPs 1 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in Program Files directory 4 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 40 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\efb2150b7d17d03889a1ae7771619867a1314a92875329d68d419fe267e9cbcc.exe
    "C:\Users\Admin\AppData\Local\Temp\efb2150b7d17d03889a1ae7771619867a1314a92875329d68d419fe267e9cbcc.exe"
    1⤵
    • Modifies firewall policy service
    • UAC bypass
    • Windows security bypass
    • Loads dropped DLL
    • Windows security modification
    • Checks whether UAC is enabled
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:884
    • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
      "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
      2⤵
      • Modifies firewall policy service
      • UAC bypass
      • Windows security bypass
      • Executes dropped EXE
      • Deletes itself
      • Loads dropped DLL
      • Windows security modification
      • Checks whether UAC is enabled
      • Enumerates connected drives
      • Drops autorun.inf file
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:800
  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1256
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1192
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1116

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • C:\Users\Admin\AppData\Local\Temp\006C9667_Rar\efb2150b7d17d03889a1ae7771619867a1314a92875329d68d419fe267e9cbcc.exe

                Filesize

                113KB

                MD5

                e9764bfa4da04ccd67a53776a7c80fac

                SHA1

                34caa5659e5adcdf40e5bd10bcffb381b8a7004d

                SHA256

                b4860432f1ee1af4288b942aec7a1bce95f5a105602862ad8a202d0f9e94b679

                SHA512

                76ff0b2064344c03e04d17210db84170f3fa386a32201d59d51a5e0dd6782349a040250a333cad66afcb53d9e36157ee7abc1cf56642cb39168cd7181b0ab6a0

              • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

                Filesize

                189KB

                MD5

                a16cf6e2cefc42c846d0bd855c09c0cc

                SHA1

                c3eb0af83f54c1e3a431df1eb46ec97ec1d0ab0d

                SHA256

                efb2150b7d17d03889a1ae7771619867a1314a92875329d68d419fe267e9cbcc

                SHA512

                137bad2bf66cf8e41c521ab5a8a87aef1f28479d605b2285c539b2c3353c83b4b194de1af813994a84504e162d563dc0bffc4fa60359b54a0ca105b517cebd74

              • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

                Filesize

                189KB

                MD5

                a16cf6e2cefc42c846d0bd855c09c0cc

                SHA1

                c3eb0af83f54c1e3a431df1eb46ec97ec1d0ab0d

                SHA256

                efb2150b7d17d03889a1ae7771619867a1314a92875329d68d419fe267e9cbcc

                SHA512

                137bad2bf66cf8e41c521ab5a8a87aef1f28479d605b2285c539b2c3353c83b4b194de1af813994a84504e162d563dc0bffc4fa60359b54a0ca105b517cebd74

              • C:\Windows\SYSTEM.INI

                Filesize

                255B

                MD5

                8bc7fa159fcee85f5a87f874594f41e8

                SHA1

                f9d47d7b352c4584b0b29cbf9b35780454fe4e0e

                SHA256

                2361ce0829ad5d82dbdf9e37e1c21fabe14bbb8f063ba2baa8d480ae7a72288a

                SHA512

                6add64f6a7988ef544c2bce5389f56b0dae77bc54ceb406cb76b368e0581bafe2c41b2850435570084fa0f488fd4b1f5aabbf02281208a14d2c32ca13265474d

              • \Users\Admin\AppData\Local\Temp\nst9B39.tmp\InstallOptions.dll

                Filesize

                15KB

                MD5

                67d8f4d5acdb722e9cb7a99570b3ded1

                SHA1

                f4a729ba77332325ea4dbdeea98b579f501fd26f

                SHA256

                fa8de036b1d9bb06be383a82041966c73473fc8382d041fb5c1758f991afeae7

                SHA512

                03999cc26a76b0de6f7e4e8a45137ee4d9c250366ac5a458110f00f7962158311eea5f22d3ee4f32f85aa6969eb143bdb8f03ca989568764ed2bc488c89b4b7f

              • \Users\Admin\AppData\Local\Temp\nst9B39.tmp\LangDLL.dll

                Filesize

                5KB

                MD5

                cff41424c37cf74f15b8abb04eb0a2d0

                SHA1

                32a58a975aa7c0a41137718546a9bff5620c5447

                SHA256

                d442bc8455b7ddb8ce383d993b5b79875bc43e748ed9c1e5b25733361ebe4b07

                SHA512

                dd2b9d03c4fcf1b158820c0113efcefd395cb8bef6fd238fb4c8cabfc05ff8d2da35fdbae335df0cc13856f24fac7dd219b4d9f69ac910e0105be6f47cd7d0fa

              • \Users\Admin\AppData\Local\Temp\nst9B39.tmp\System.dll

                Filesize

                11KB

                MD5

                959ea64598b9a3e494c00e8fa793be7e

                SHA1

                40f284a3b92c2f04b1038def79579d4b3d066ee0

                SHA256

                03cd57ab00236c753e7ddeee8ee1c10839ace7c426769982365531042e1f6f8b

                SHA512

                5e765e090f712beffce40c5264674f430b08719940d66e3a4d4a516fd4ade859f7853f614d9d6bbb602780de54e11110d66dbb0f9ca20ef6096ede531f9f6d64

              • \Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

                Filesize

                189KB

                MD5

                a16cf6e2cefc42c846d0bd855c09c0cc

                SHA1

                c3eb0af83f54c1e3a431df1eb46ec97ec1d0ab0d

                SHA256

                efb2150b7d17d03889a1ae7771619867a1314a92875329d68d419fe267e9cbcc

                SHA512

                137bad2bf66cf8e41c521ab5a8a87aef1f28479d605b2285c539b2c3353c83b4b194de1af813994a84504e162d563dc0bffc4fa60359b54a0ca105b517cebd74

              • memory/800-71-0x0000000003B10000-0x0000000004B9E000-memory.dmp

                Filesize

                16.6MB

              • memory/800-76-0x0000000000400000-0x0000000000557000-memory.dmp

                Filesize

                1.3MB

              • memory/800-75-0x0000000005130000-0x0000000005132000-memory.dmp

                Filesize

                8KB

              • memory/800-66-0x0000000000400000-0x0000000000557000-memory.dmp

                Filesize

                1.3MB

              • memory/800-74-0x0000000003B10000-0x0000000004B9E000-memory.dmp

                Filesize

                16.6MB

              • memory/800-69-0x0000000003B10000-0x0000000004B9E000-memory.dmp

                Filesize

                16.6MB

              • memory/800-72-0x0000000005130000-0x0000000005132000-memory.dmp

                Filesize

                8KB

              • memory/884-54-0x00000000762D1000-0x00000000762D3000-memory.dmp

                Filesize

                8KB

              • memory/884-56-0x0000000000400000-0x0000000000557000-memory.dmp

                Filesize

                1.3MB

              • memory/884-55-0x0000000001FE0000-0x000000000306E000-memory.dmp

                Filesize

                16.6MB

              • memory/884-57-0x0000000001FE0000-0x000000000306E000-memory.dmp

                Filesize

                16.6MB

              • memory/884-59-0x0000000000280000-0x0000000000282000-memory.dmp

                Filesize

                8KB

              • memory/884-62-0x0000000000400000-0x0000000000557000-memory.dmp

                Filesize

                1.3MB